flow2 tab02 en v2007.07.30 -...

Flow2 stairlift

Tab 02: System description

©

ATb

Flow2 stairlift

Tab 02: System description

2006 ThyssenKrupp Accessibility B.V.

ll rights reserved
he information in this manual may not under any circumstances be given to someone else, reproduced or publishedy any means without the prior written permission of Product Management.

2007.07.30Flow2 stairliftTab 02: System description

1

Table of Contents

1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.1 Safety aspects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.2 Customer requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 The rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.1 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.2 Rail sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.3 Rail options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82.4 Charging contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 The chair base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.1 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.2 Swivel seat system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123.3 Safety mechanisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4 The drive unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144.1 The drive unit electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144.2 The memory system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184.3 The drive system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3.1 System assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.3.2 Position counter and Rail data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214.3.3 Drive system control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234.3.4 Safety mechanisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244.3.5 Overspeed governor construction and operation . . . . . . . . . . . . . . . . . . . . . . 25

4.4 The horizontal system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.4.1 System assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264.4.2 Horizontal system control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5 Control components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305.1 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305.2 System assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315.3 Call and park unit operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6 Power supply system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346.1 System assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 346.2 Switching the stairlift on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356.3 Charging the batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366.4 The rail charging contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376.5 The transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376.6 Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376.7 Measurement points and LED indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7 Use of the service board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397.1 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397.2 Overview of the modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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2

Table of Contents

7.3 Mode 4: Calibrate the horizontal position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447.4 Mode 5: Calibrate the swivel position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 447.5 Mode 6: Program the rail data table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 457.6 Mode 7: Install RF components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467.7 Mode 8: Link the call and park units to call and park locations . . . . . . . . . . . . . . . . . . 477.8 Mode 9: Program parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487.9 Special mode 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497.10 Programming the rail data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.10.1 Backup/Restore/Clear options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497.10.2 Programming menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 507.10.3 Programming the speed profile and charging contacts . . . . . . . . . . . . . . . . . . 517.10.4 Programming the seat profile and rotations . . . . . . . . . . . . . . . . . . . . . . . . . . 52



3

1 General

Flow2 stairlift is a compact stairlift that fits most staircases: whether they are straight, curved or even spiral stairs. The stairlift can be positioned on either the inside or the outside of the stairs so that the available width of the stairs remains as usable as possible.

1.1 Safety aspects

The stairlift is equipped with various techniques to guarantee safe use. In general, all safeguards are duplicated; one fault may never result in a dangerous situation!

The following safeguards are fitted:

- A safety processor checks all incoming and outgoing signals from the main processor and intercedes if necessary.

- An overspeed governor locks the stairlift mechanically if it goes too fast. In that case, the drive motor is also disconnected electrically (see Chapter 4).

- Mechanical endstops at the ends of the rail ensure that the drive unit cannot ride off the rail. This should only be possible if there is a technical defect (see Chapter 4).

- An obstruction safeguard system ensures that the stairlift stops if a person or object obstructs the free movement of the stairlift.

- Because the stairlift works on batteries, it can still be used when there is a power failure. A safety mechanism ensures that batteries always have enough charge left for a last trip to a charging contact located lower down (see Chapter 6).

- All chairs are fitted with a safety belt.

1.2 Customer requirements

This section gives a summary of the capabilities the stairlift offers the customer. See the ´Product introduction´ brouchure for an extensive overview of the customer options.

Swivel seat systemThe stairlift can be equipped with a fixed seat, with a manually turnable swivel seat and with an automatically turnable seat. See Section 3.2.

Control componentsThe armrest control is positioned on the lower side of the chair in the armrest. The stairlift is supplied as standard with two call&send units, but more are possible. A call&send unit can be positioned on each floor. The customer can also choose to have an attendant control. This is for cases when the user has difficulty operating the stairlift himself/herself.

The armrest control is supplied as standard with three different types of joystick. In addition to the three standard types the customer can choose to have an ergonomically designed joystick. This can



4

General

be held and operated with the whole hand.

The call&send units and the attendant control have a wing-key joystick as standard.

Coating railThe rail and chair base are finished with a sturdy powder coating. The powder coating applied to the rail is available in a variety of colours. On ordering the stairlift the customer selects the colour most suitable for the interior of the customer’s home. Customers can select from the following standard colours:

- RAL 9002, white grey.

- RAL 7046, grey

- RAL 8019, brown grey.

- RAL 8024, brown beige.

Although other colours are also possible, the choice of a non-standard colour will have consequences for the price and the delivery time.

Stairlift coating The powder coating applied to the chair is always white and the covers are always a combination of white and brown. These colours cannot be changed.

Seat furnishingThe seat cover is available as standard in two materials, each with its own colours:

- Vinyl: red, sisal, blue, grey, green and maroon

- Fabric: beige, blue, brown and red.

Both materials are dirt repellant and fire resistant.



5

2 The rail

The rail is a round steel tube bent to shape to which a rack is welded. The drive unit’s rollers stabilize the drive unit as it travels along the round pipe. A gear in the drive unit engages in the teeth of the rack. This provides the drive for the stairlift in the rack on the rail.

2.1 Construction

The rail is made of a round steel tube with a diameter of 80 mm. A rack is welded under the rail along which the stairlift moves. Because the standard production length of the steel tubes is limited, depending on the total length a rail is constructed from a maximum of 3 sections (2 joints) per floor. The maximum inclination of the rail is 70º.

In most cases the rail starts vertically on the floor at the bottom. Here the minimum distance from the front of the stair tread to the front of the rail is 175 mm.

The standard version is equipped with a horizontal section of rail on the top landing. The distance between the front of the last stair tread and the end of the rail is a minimum of 200 mm.

EndsThe horizontal end of the rail is fitted with a ball shaped cap (1) which makes it easier to mount the drive unit on the rail.

Fig. 2-1 Minimum distance from the stair treads



6

The rail

In the cap there is sufficient space for keeping the Flash card (2). You can secure the Flash card with double-sided tape.

Emergency end stopWith a horizontal rail runout, an emergency stop is fitted on the underside of the rack. A counter ensures that the lift's position is safeguarded.

To prevent the stairlift moving past a stopping place and running off the rail as a result of technical problems, a mechanical emergency stop is fitted. This end stop consists of a small strip that is fitted in a cutout in the rack.

The emergency stop activates the emergency limit switch, which stops the drive motor drive and activates the electrical brake (also see Section 4.3.4).

Fig. 2-2 Rail cap

1

Fig. 2-3 Rail cap

2

Fig. 2-4 Emergency end stop


2007.07.30 Flow2 stairlift Tab 02: System description

The rail

2.2 Rail sections

Depending on its shape, the rail can be divided into various sections.

Curves in the horizontal plane are called inside curves (2) and outside curves (1). To avoid confusion:

- Looking from the stairs, if you can see the inside of the curve then that is an inside curve.

- If you can see the outside of the curve then that is an outside curve.

In the vertical plane they are called bottom and top curves.

There are also curves in both the horizontal and the vertical plane. Such a curve is called a wokkel.

At the end of the rail there can be a vertical landing or a horizontal landing.

Fig. 2-5 Inside and outside curves

21

Fig. 2-6 Wokkel and vertical landing

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8

The rail

2.3 Rail options

Longer runoutA longer overrun than the standard-length overrun can be installed at both the top and bottom of the stairs. The maximum length is limited by the available space.

Left or right railThe rail can be fitted on either the left or the right side of the stairs. Viewed from the bottom, if the rail is on the right then it is called a right rail. If the rail is on the left then it is called a left rail.

Parking placesIf there is no room at the start or the end of the rail for parking the stairlift, an extra parking place can be made along the rail. Any such parking point will need to be located on a straight section or a horizontal bend. The location of the extra parking place must be such that the parked stairlift does not cause any inconvenience for anyone else when they use the stairs.

Fig. 2-7 Maximum rail runout dimensions

required for installing the chair



The rail

The parking place must always be on a charging contact so that the batteries can be charged when the stairlift is not in use.

Extra stopping placesIt is possible to define a maximum of 10 stopping places for the stairlift, including the parking places and the stopping places at the ends of the rail.

Warning postWarning posts can be installed in front of horizontal rail sections on the bottom or top landing to draw attention to the risk of stumbling over the rail.

Fig. 2-8 Parking curve

normal curve

opposite curve

Fig. 2-9 Warning posts



10

The rail

2.4 Charging contacts

The charging contacts are part of the power supply system (see Chapter 6).

The positions of the charging contacts must match the positions of the parking and stopping places. Mount the charging contacts on the rail using the supports so that the brush contacts on the drive unit contact the center of the charging contacts.

Fig. 2-10 Charging contact



11

3 The chair base

3.1 Construction

FrameThe chair consists of a frame on which a seat and a back cushion are fitted.

The armrests can be folded up so that it is easier to step on and off the chair. The chair can be fitted with a straight or a curved armrest, these are interchangeable. On a stairlift with a fixed seat or with manually controlled swivel seat, the chair is fitted as standard with straight armrests. On a stairlift with an automatic swivel seat system, the chair is fitted with curved armrests. This keeps the space required for turning as small as possible.

The armrest located on the downwards side of the stairs, a result of the CE certification, is fitted with an armrest control. On a stairlift with a left rail (viewed from underneath the stairs) this is thus the right armrest and on a stairlift with a right rail this is the left armrest (also see Section 2.3 - Rail type).

The height of the seat can be adjusted to one of 5 positions (see Tab 04 - Install, adjust and release).

FootrestThe footrest is attached to the chair frame and can be folded up.

If the seat position is raised, the footrest must be lowered so that the distance between the footrest and the stair remains the same, but the distance between the footrest and the seat is increased. In this way the chair can be adjusted to the height of the user (see Tab 04 - Install, adjust and release).

Fig. 3-1 Chair base

Fig. 3-2 Seat height adjustment Fig. 3-3 Footrest adjustment mechanism

Fig. 3-4 Foldable chair base



12

The chair base

Chair folding mechanismThe chair can be folded by lifting the front of the chair until the seat is vertical. The movement is dampened by a gas spring.The footrest can be folded by lifting the handle at the front until the support is vertical.

Unfolding the chair is done by moving the footrest and the seat back to the horizontal position.

3.2 Swivel seat system

The stairlift can be fitted with a fixed seat, a manual swivel seat or an automatic swivel seat.

Fixed seatWith a fixed seat the seat is attached to the drive unit. To make it easier to step on and off, it is convenient if the seat is turned at the bottom and the top. In that case a manual swivel seat can be fitted. If the user also wants to turn to a comfortable position while moving, or a small stairwell makes this necessary, an automatic swivel seat must be fitted.

Manual swivel seatWith the manual swivel seat mechanism, the seat frame is connected by a lever to the drive unit. The seat frame can pivot 70° around the pillar by lifting one of the levers on either side of the seat frame. At the end positions, the seat can be locked in place by lowering the lever again.

The direction of rotation depends on the place where the seat has to turn. This can not be changed.

The manually operated swivel seat is fitted at the top as standard to make stepping on and off easier. In this case, at the bottom the seat may only turn the "wrong" way (towards the stairs).

If the swivel seat has to be fitted at the bottom, a runout must be positioned at the top to avoid the chair being able to turn over the stairwell at the top. At the bottom, the rail may not be steeper than 60° because otherwise the seat frame will strike the rail while turning.

Fig. 3-5 Fixed seat

Fig. 3-6 Manual swivel seat system



The chair base

Automatic swivel seatWhen a stairlift is fitted with an automatic swivel seat mechanism, an electric motor (1) drives the vertical support of the seat mounting through a planetary gear system (2).

An electric motor provides the drive for the swivel seat. The chair with an automatic swivel seat can turn both 170º clockwise and 170º anti-clockwise, depending on the rail and the stairs. The electric motor is controlled by the electronics and the rotation is fully programmable.

While moving, the chair is turned to the best position so that it can move up and down a narrow stairwell. At the beginning and end of the travel, the chair turns automatically to the position in which there is the most room to make stepping on and off easier.

The position and amount of the chair's angular rotation is programmed in the software.

3.3 Safety mechanisms

Obstruction safeguardThe pivot under the seat is kept in a specified position during movement by springs (also with a fixed seat). This position is monitored by an optocoupler. If the chair is in the right position, the control is released.

At the moment that the chair runs into something, the chair is pushed out of position against the spring pressure. The optocoupler detects that the chair has turned and signals this to the control. The control then disconnects the power supply from the drive motor and the electrically operated brake. This stops the motor and engages the brake.

The drive is stopped immediately. The user can no longer move any further forwards, but can move backwards. The user can continue moving forwards after removing the obstacle.

Fig. 3-7 Electric motor

1

2

Fig. 3-8 Automatic swivel seat

1

2



14

4 The drive unit

The drive system and the system for keeping the chair base horizontal (level) is located in the drive unit.

4.1 The drive unit electronics

The electronics consists of a number of boards, namely:

- the main board

- the sensor board

- a receiver module

- a power module

- various motor modules

- the service board.

The system also includes a drive motor, a horizontal motor and (if present) a swivel seat motor.



The drive unit

Fig. 4-1 Schematic Diagram

optocoupleroverspeed governoroptocoupler

creep switch

Mai

n ci

rcui

t boa

rd

Pow

er m

odul

e charging contact: J5

on/off: J1

min: J3plus: J2

charging contacts

Encoder board

brake

Fuse

blue

red

red

blac

k

Drive

Driv

eLe

vel

level motor

mot

or m

odul

e dr

ive

mot

or m

odul

e le

vel

MC

M s

wiv

el

seat

Sen

sor

boar

d

optocoupleranti-squeeze

optocouplerswivel seat-nul

Sw

ivel

enco

der

swiv

el s

eat

mot

or

Elec

tric

al c

asse

tte

Rec

eive

r m

odul

e

Ser

vice

boa

rd

J4: p

ower

boa

rdJ5

: mot

or 1

J13:

en

code

rJ8

: bra

keJ6

: mot

or 2

J7: m

otor

3J1

5: c

reep

J11:

RF

mod

ule

J16:

sen

sor

boar

d

J16:

ser

vice

On/Off switch



16

The drive unit

The main boardThe stairlift is a processor-controlled system. In the drive unit there are (underneath two other printed circuit boards) the main board (3) with two microprocessors on it: a main processor and a safety processor.

The main processor controls the whole system, processes the incoming commands and generates the associated output commands. In addition, the main processor checks the presence of the safety processor.

The safety processor checks all the incoming and outgoing commands from the main processor. When the safety processor sees that something is going wrong, this processor is able to disconnect the power supply to the drive motor and to activate the drive motor brake.

The receiver moduleThe receiver board (Fig. 4-2, 1) converts the signals coming from the armrest control, the call and park units and from the attendant control unit into a language that the main board can understand (bits and bytes).Two antennas are connected on the receiver board that receive the signals from the various units.

The power moduleThe power module (Fig. 4-2, 2) provides the power for the whole system. The batteries, the charging contact and the on/off switch are therefore connected to this module.

The module provides the supply voltage for the various systems.

On the power module there are two glass fuses to protect the voltage supply to the various boards and modules.

The main power circuit is protected with a 40 A fuse.

Motor modules The system has two different motor modules:

- the motor modules for the drive and the horizontal motor (Fig. 4-24 and 5, )

- the Mid Current Module (MCM) for the swivel seat motor (Fig. 4-26).

The motor modules control the drive and the horizontal motor and ensure that the connected motors turn at the right speed and in the right direction.

Fig. 4-2 Top view printed circuit boards

1

2

3

5

3



The drive unit

The MCM (Mid Current Module) controls the swivel seat motor. This module is a lighter module than the motor module because the swivel seat motor requires less power, also see the drive system control, Section 4.3.3.

The sensor boardThe sensor board (8) is mechanically connected to the horizontal shaft (7) of the chair base. The two inclination sensors for the horizontal system are located on the sensor board. Also connected on the sensor board are the two optocouplers and the encoder for the swivel seat system (see Section 3.2). These are read in by the main board.

The service boardThe service board (9) is located at the front of the drive unit directly under the service cover. With this board it is possible to set the stairlift service settings.

The service board has the following components:

- a display (3 digits)

- the control keys

- a connection for a laptop PC

- a mode switch

- a connection for the Arrow armrest control

- a connection for the carrying bracket (only for installation)

- a loudspeaker.

At the factory, the drive unit is fitted with a handle and a switch that is connected to the service board. The drive unit can be carried by the handle while the drive can be switched on and off with the inbuilt switch. Using this, it is simple to ride the drive unit onto the rail. After installation, the handle with the switch can be removed and the electrical connection from the switch can be disconnected.

For service purposes, the Arrow stairlift armrest control can be connected to the service board.

Fig. 4-3 Front view

7

8

9



18

The drive unit

The encoder boardThe position of the stairlift on the rail is determined using the encoder board (9) on the drive motor (10). On the shaft of the drive motor there is a ring magnet (11) with 8 pole pairs. On the encoder board there are two Hall sensors (12) that output a pulse at each pole reversal. The pulses are fed to the main processor, see also Section 4.3.3

4.2 The memory system

The lift has two memory systems. An internal memory system located on the main board and an external memory system, a Flash card. Both contain a number of packages. The most important ones are:

- History: History of all events that have occurred, the lift has space for about the last 500 events, the flash card has space for the last 100,000. Events are occurrences such as the pressing of a button, the detection of a charging contact, the control of a motor, etc.

- RailData: Rail related data. Think of the speed profile, call/park/stop positions, etc.

- Parameters: All the possible settings that must be saved.

- Main and safety software: The software writes micro controller codes. Because there are two micro controllers, there are also two software versions.

As well as a static memory the internal memory system also has a working memory. When settings or rail data are changed without confirming them, they are lost. The working memory is a temporary memory.

When the lift leaves the factory it contains the latest version of the software and order-related rail data and parameters. These can also be found on the flash card. See the figure below.

Fig. 4-4 Encoder

9

1011

12



The drive unit

Fig. 4-5 Flash card

Please be aware that we do not advise you to perform a software upgrade on a lift which is function-ing properly. Only upgrade the software when you think that an occurring error is caused by a soft-ware imperfection.

The main and safety software is programmed as follows:

Programming:

1. Make a back up on the original flashcard that is in the lift (Normal mode 9, BU).

2. Remove the original flashcard from the connector and store it in a safe place.

3. Put the upgrade flashcard in the connector.

4. Switch the lift off.

5. Press and hold the Program button on the mainboard, while switching the lift on.

6. Keep the Program button pressed for about 5 seconds. After approximately 15 seconds you will here a “ping” sound indicating that the main software is installed. The display shows the software version.

7. Press the Program button once again, after approximately 2 seconds you will here a “ping“ sound indicating that the safety software is installed.

8. Switch the lift off, leaving it in mode 9. Press the D-button on the service board and switch the lift back on to reach Special mode 9. Release the D-button.

9. Clear the parameter data (CPD)

10. Switch the lift off, and back on again to reach Normal mode 9. You now have to enter the type



20

The drive unit

of rail (RR, RL) and type of swivel (SA, SM).

11. Switch to mode 3 and drive down to the Reset point (RST)

12. Switch to mode 7 and register the user interface and call & park stations

13. Switch to mode 8 and assign the call & park positions

14. Switch to mode 9 and make a back up

15. Switch to mode 0, switch the lift off and back on again. Check the functionality of the lift.

16. When the lift is functioning properly, the original flashcard that you stored in a safe place can be thrown away.

4.3 The drive system

4.3.1 System assemblyThe stairlift is driven by a drive motor. This is connected via a worm wheel transmission and a planetary gear transmission to the drive wheel that engages in the rail rack.

Seven rollers ensure that the undercarriage rides smoothly along the rail tube. The top bogey rollers (1) are spring-mounted so that the rollers can roll over the rail without any play and the stairlift remains stable on the rail even when there is no-one sitting on it. The ball joints incorporated in this assembly ensure that the rollers always follow the profile of the rail. The support roller (2) is positioned directly opposite the drive shaft and ensures that the drive gearwheel always has enough traction in the rail rack.

The motor is equipped with an integrated electrically-operated brake. As soon as the power is removed from the brake, it engages and locks the drive shaft.

In addition, a safe drive is guaranteed by:

- an overspeed governorThe overspeed governor is a mechanically locking brake that engages if the speed of the chair becomes too high. When a certain speed is exceeded, a gearwheel fitted directly underneath the drive gearwheel is locked. The supply voltage is also disconnected from the drive motor.

- an emergency stop at the ends of the railThe emergency stop is an extra safety mechanism that prevents the stairlift being able to ride off the rail.

Fig. 4-6 Rollers

2

1 1

Fig. 4-7 Overspeed governor

1 2



The drive unit

4.3.2 Position counter and Rail dataThe manner in which the lift moves along the rail is recorded in a table that includes the rail data. The size of the table can vary, depending on the complexity of the shape of the rail. This rail-specific table is normally supplied with the drive unit (on a Flash card).

When the stairlift moves along the rail, the exact position of the lift is registered using an electronic pulse counter. The pulse counter counts the pulses coming from the encoder on the shaft of the drive motor. The lower charging contact is the counter reset point. This charging contact is recognized by the fact that the + and the - poles of this charging contact are reversed with respect to the other charging contacts. Each time that the lift arrives at the lower charging contact, it is reset to the start position if the counter deviates.

As the lift moves up, the pulse count increases. Each position on the rail now corresponds with a pulse counter value. The rail data table indicates what actions have to be carried out by the stairlift at the various positions on the rail. Here you must think of the speed and the swivel seat angle (when there is an automatic swivel seat).

The rail data table that the lift uses is stored in the memory on the main board. While moving, the control uses the pulse counter as a table pointer. In this way, the control can carry out the pre-programmed actions at the right moment.An action element consists of three fields:

- the rail position

- the type of action

- the associated value.

The following actions with their associated values can be programmed:

- Speed Speed of the lift.Goes from 1 ... 9 or rather from 10% to 90%.

- ANGLE swivel seat angle (during movement of the lift).Goes from -17 ... 17 or rather from -170º to +170º.

- Halt Halt location.Goes from 0 ... 9.Stopping position 0 is always the reset charging contact (lower charging contact).The lift can be sent to a stopping place using either the armrest controls or the call and park units.

- Park Parking location.Goes from 0 ... 9.Parking position 0 is always the reset charging contact (lower charging contact).The lift can be brought to a parking position with the call and park unit.



22

The drive unit

The following table is an example taken from a test model. The Speed and the Angle at positions 0 and 2000000 and the End action are placed in the table by the control. All other actions must be entered manually. The table is limited to up to 255 rail point actions.

The stairlift is delivered from the factory with a rail-specific rail data table. This standard rail data table is stored on the Flash card and is read into the memory by the factor. It is then not necessary to program the rail data.It is also possible that something could have been missed in this “factory programming”, such as the protruding corner of a cupboard or something similar. In such as case it is possible to change the rail data at the customer's home.

There are also situations imaginable where the table is missing, for example when the Flash card is not present (any longer). In that case the complete table has to be read in again using an empty flash card or it has to be requested from the manufacturer.

- Rotate Rotation.Goes from -17 ... 17 or rather from -170º to +170º.Can only be programmed at stopping positions.The rotation is only carried out on a command from the armrest controls, the call&send units and the attendant control.

Action Position Value

0 Speed 0 30

1 Speed 3993 50

2 Angle 3993 0

3 Halt 3993 0

4 Speed 7504 50

5 Speed 8352 40

6 Speed 13254 40

7 Speed 15546 90

8 Speed 32892 90

9 Speed 35764 50

10 Halt 39553 1

11 Speed 2000000 30

12 ANGLE 2000000 0

13 END

14



The drive unit

4.3.3 Drive system controlThe following figure shows the design of the control.

Fig. 4-8 Drive system

The main processor determines the speed of rotation and the direction of the drive motor on the basis of the control from the user and the rail data table in the memory. Normally, the speed of the stairlift can be brought to null with the drive motor. Only when the stairlift is stationary, the brake is activated.

The main processor controls the motor module of the drive motor. This module ensures that the drive motor turns at the required speed and in the required direction.

Motor moduleThe motor module contains an H-switch with power FETs. These power FETs act as switches. The position of the switches determines the direction in which the drive motor turns. In situation 1 the motor turns clockwise. In situation 2 the motor turns anticlockwise.The motor module switches at a frequency of 20,000 Hz between situation 1 and 2.

- If situation 1 is switched just as long as situation 2 (50%-50%), the motor is stationary.

- When situation 1 is switched in longer than situation 2 then the motor will turn clockwise.

- When situation 2 is switched in longer than situation 1 then the motor will turn anticlockwise.

- The ratio between the two switch-in times determines the speed at which the motor turns. The speed is a maximum at a ratio of 100% - 0%.

Rail data table

Main Micro-

processor

SafetyMicro-

processor

IC drive

PowerFETs

Drive mo-tor

Enco

der

Bra

ke

Motor module

Power moduleBatteries

Main board

Overspeed governor



24

The drive unit

Encoder boardThe system measures the current position on the rail by looking for the edges of the pulses from the encoder on the shaft of the drive motor. If the edge of pulse A is slightly earlier than the edge of pulse B, a pulse is added to the position. If the edge of pulse B is slightly earlier than the edge of pulse A, a pulse is deducted from the position.

4.3.4 Safety mechanisms

The electric brakeThe electric brake is a fail safe system. The brake is released by applying a voltage to the unit. If the voltage falls away then the brake prevents the drive shaft from turning.

Overspeed governorThe speed of the stairlift is safeguarded electromechanically.

If the speed of the drive unit exceeds a certain value, the overspeed governor ensures that the gearwheel of the overspeed governor is mechanically locked in the rack so that the stairlift is brought to a stop. At the same moment the electric drive is switched off.

Bypassing safety mechanismsBy pulling out the main switch on the back of the motor cover as far as it will go, the creep system is engaged. The stairlift can then be lowered at a reduced speed while any faults in the system or active electronic safety mechanisms are ignored.

Fig. 4-9 H switch with powerFETs

Situation 1Clockwise

Situation 2Anticlockwise

Fig. 4-10 Motor control

L

R

L

R

L

R

Stop

Anticlock-wise

Clockwise

Fig. 4-11 Pulses from the encoder

Hall sensor A

Hall sensor B



The drive unit

4.3.5 Overspeed governor construction and operationThe overspeed governor ensure that the stairlift comes to a halt if the speed is too high.

ConstructionThe overspeed governor consists of:

- a catchment gearwheel (1)

- the teeth (2)

- a cam ring (3)

- an idler (4).

- a locking pin (5)

- an optocoupler (6)

- a switch mechanism (7)

- an emergency limit switch (Fig. 4-14, 8).

The drive unit gearwheel is connected to the catchment gearwheel (1) which is connected to the teeth (2) and the cam ring (3).When the stairlift moves along the rail, this gearwheel (1) with the teeth (2) and cam wheel (3) turns at the same speed as the chair.

OperationInside the cam wheel is an idler (4). This idler is shaped like a christmas tree. The ‘top’ of the idler runs over the teeth (Fig. 4-132, ) inside the cam ring (Fig. 4-133, ). As long as the speed of the chair and thus the rotation speed of the overspeed governor is not too high, the idler quietly follows the teeth. At each tooth, the idler is pushed outwards and is pushed back by a spring when the teeth move. The teeth and the cam wheel are matched with each other so that the 'trunk' of the christmas tree is pushed between the cams in the cam wheel each time and springs back to let the following cam pass.

Fig. 4-12 Overspeed governor components

3

1

2

Fig. 4-13 Overspeed governor gearwheel, teeth and cam ring

3

1

2

Fig. 4-14 The overspeed governor

8

4

5

6

75



26

The drive unit

If the speed of the chair is greater than 0.2 - 0.3 m/s, the idler will no longer be able to follow the shape of the teeth and come away from the tooth after its top. The idler will then not have sprung back in time to let the next cam pass. The idler will then be 'seized' by a cam in the cam ring (Fig. 4-133, ) and forced against a locking pin (5) by the edge of the idler. The sideways movement of the idler operates a switch mechanism (7) that is detected by an optocoupler (6). As a result of this, the main board disconnects the power from the drive motor control and the electrically operated brake. All of this happens in a fraction of a second.

At that moment the idler forms a mechanical stop between the cam wheel and the locking pin, so that the overspeed governor gearwheel cannot turn any longer. Because the overspeed governor gearwheel also engages in the rail rack, the chair will come to a halt.

Emergency end stopThe idler can also be pushed back by the emergency limit switch (8). This is operated by the emergency end stop located on the rail. If, because of technical problems, the drive unit goes past the stopping position at the end of the rail, the cam comes into contact with the emergency end stop. The emergency end stop is moved so that the idler is pushed outwards. A similar situation now occurs as for the exceeding of the maximum speed. A mechanical lock is created and the power circuit to the drive unit is interrupted to prevent the chair riding off the rail. The emergency limit switch must be manually moved back to the centre position to allow the drive unit to move again.

4.4 The horizontal system

4.4.1 System assembly

The horizontal systemThe horizontal system keeps the chair horizontal by correcting for the rail’s angle of inclination. Via a double wormwheel transmission, a motor (2) drives a gear that is directly connected to the horizontal shaft (1) of the chair base. The transmission is constructed in such a way that the chair can never tip on its own when the horizontal motor is not running.

The motor is part of a control loop in which two sensors measure the position (angle) of the chair’s seat as compared to the set horizontal position.



The drive unit

An inclination sensor determines the measurement value (angle of the chair base) for the fine and slow control of the horizontal position. This sensor is located on the sensor board that is located on the horizontal axis of the chair base. The inclination sensor is also known as the electronic spirit level.

A gyro sensor determines the measurement value (angular speed of the drive unit) for the coarse and fast control of the horizontal position. The gyro sensor is located on the main board.

A third sensor, an inclination sensor on the sensor board, is used as an extra safety mechanism for the horizontal system.

4.4.2 Horizontal system controlThe following figure shows the design of the control.

Fig. 4-17 Horizontal system

The main processor reads the measurement values from the inclination sensor and the gyro sensor and determines what has to happen. When stationary and while moving, the inclination sensor

Fig. 4-15 Horizontal motor

1

2

Fig. 4-16 Sensor board

Inclina-tion 1

Inclina-tion 2

Gyro

Main board

Sensor board

Main Micro-

processor

SafetyMicro-

processor

IC level

PowerFETs

Horizontal motor

Motor module

BatteriesPower module



28

The drive unit

constantly monitors the position of the stairlift. While moving, the gyro sensor is also used to measure the speed of the angular rotation. The horizontal system keeps the chair continuously in the horizontal position on the basis of these two measurements.

Horizontal motor controlThe main processor controls the horizontal motor using a standard motor module. This motor module uses an H switch in which power FETs act as switches. The same sort of circuit is as used as the circuit for the drive motor. See Section 4.3.3 for a description of the operation.

An encoder is not used for controlling the horizontal motor. The control of the horizontal system is done solely on the basis of the two sensors.

Horizontal position safety mechanismThe first inclination sensor is read in by the main processor, which controls the horizontal system. A safety mechanism in this horizontal control ensures that the control of the stairlift is switched off temporarily if the chair base is tilted too far. In this way, the chair base is prevented from tilting more than 10 degrees.

The second inclination sensor is read in by the safety processor, which will take action if the main processor does not react in time. This extra safety mechanism also ensures that the chair base will never be tilted more than 10 degrees with respect to a set horizontal position.



The drive unit

Setting the (‘null’) setpointThe sensors will need to be zeroed before the horizontal-position control operates in a safe and appropriate manner and the stairlift is ready for use by the customer.

Zeroing the horizontal system involves entering the sensor measurement values equivalent to the horizontal orientation in the control system. The nulling of the system is described in Tab 04: Install, adjust and release.



30

5 Control components

5.1 Functional description

The armrest control, the call and park units on the various floors and possibly an attendant control unit can be used to operate the stairlift.

A comprehensive explanation is given in the user manual (Tab 03).

Armrest controlThe user can operate the chair with the armrest control (2). This is located on the lower side of the stairs. This arrangement is a result of the CE certification. The armrest control has a wireless connection with the electronics and works with a joystick. An indicator lamp shows the status of the stairlift.

Call and park unitsWith the call and park units (3), the stairlift can be brought to the user or sent to the parking place or to another floor. The call and park units have a wireless connection with the electronics and are operated with a joystick. For safety reasons, there must be a joystick fitted in the armrest control for the call and park units to be used.

Attendant controlThe attendant control (1) is a control unit that can be used by an attendant if the stairlift passenger cannot operate the standard control unit him/herself. The attendant can then operate the stairlift with the attendant control.The operation of the attendant control is the same as a standard control unit. For safety reasons, there must be a joystick fitted in the control unit for the call and park units to be used.

Fig. 5-1 Control components

1 2 3



Control components

5.2 System assembly

The following illustrations show how the control system is constructed.

Receiver board operationThe receiver board is permanently connected to the remote control. As soon as a command is given from the remote control, this command is translated into a command that is understood by the processors on the main board. The main processor performs the requested action that matches the command.

The communication between the remote control and the receiver board is bi-directional. This is necessary for making indications possible via the LED on the remote control.

Signals

Receiver board Green LED - Flashes if the processor is working.

- Is continuously lit when receiving a valid command.

Red LED - Is continuously lit when receiving an invalid command.

Fig. 5-2 Control system construction

Main Micro-

processor

SafetyMicro-

processor

ReceiverICTransmit-

ter/

Receiver board

Main board

Call and

rmrest control

Attendant con-trol



32

Control components

5.3 Call and park unit operation

Transmit and receiveThe data that is sent by the armrest control, the call and park units and the attendant control are carried (modulated) by a frequency. The transmit channel for this frequency can be set. If there is a foreign source in the vicinity that produces an interfering signal, another channel can be selected.

The signals are transmitted through the antennas in the armrest control, the call and park unit or the attendant control and received through the antenna on the receiver board. The receiver board extracts the data from the modulated signal (demodulation) and sends this to the main board.

SignalsThere is an LED on the armrest control, the call and park unit and the attendant control. This LED shows the status of the stairlift.

Indication Meaning Action

Flashing green LED The batteries of this control component are (almost) empty and must be replaced.

Replace the batteries (see the user manual) of the control component concerned.

Flashing red LED + audible signal from the drive unit

The stairlift is not parked on a charging contact.

Drive the stairlift to a charging contact. If this is not possible, you can switch off the sound by switching the stairlift off at the main switch (see the user manual) and contact your supplier.

The stairlift has encountered an obstacle and will not move any further.

Move the stairlift in the opposite direction and remove the obstacle.

Constant red LED There is a malfunction in the stairlift.

Switch the stairlift off and on again once (see the user manual). Try to operate the stairlift. If the stairlift does not work contact your supplier. If this situation occurs while moving, you can always descend using the creep system (see Tab 03, user manual).



Control components

Registering armrest controlsThe armrest control, the call and park units and the attendant controls must be registered with the electronics. When a unit has to be replaced, or added, this unit must also be registered with the electronics. Only then is it possible to use the units (see Tab 04: Install, adjust and release).



34

6 Power supply system

6.1 System assembly

The stairlift is supplied by two rechargeable maintenance-free batteries (12 V /7.2 Ah). The batteries (1) provide a safe power supply while moving.

These batteries are charged when the stairlift is not in use and is positioned at a charging contact. Charge contacts are located at various positions on the rail (start position, end position and parking position). These charging contacts are connected to the mains via a transformer and a feeder cable in the rail.

Because the stairlift works on batteries, it can still be used when there is a power failure. A safeguard ensures that the batteries always retain sufficient charge for a last trip to a set of lower charging contacts.

With fully charged batteries approximately 10 trips can be made. This can be more or it can be less, depending on various factors such as the rail length, the user's weight and the age of the batteries. An internal monitoring system in the stairlift ensures that the batteries cannot become completely discharged, like the sleep mode. This is activated after 15 min and will use a miniumum of power.

The batteries are connected in series (2 x 12 Volt = 24 Volt) to the terminals of the power module. The power module plays an important role in the power distribution. It supplies the power for the motor modules, the MCM, the brake and the various other electronics boards.

Fig. 6-1 Two 12 V/batteries

1

NOTEThe stairlift can be used at an environmental temperature of 5 to 40 °C. Outside this range the proper operation of the stairlift cannot be guaranteed.



Power supply system

Fig. 6-2 The power supply

6.2 Switching the stairlift on and off

At the rear of the drive unit is the main switch (1). With this, the stairlift can be switched on or off when it does not have to be used for an extended period (for example during holidays, etc.). An illuminated lamp on the drive unit cover indicates that the stairlift is switched on and ready for use. The lamp is out when the stairlift is switched off.

If the transformer plug is removed from the wall socket, the batteries will be drained slowly by the system. This is because the system continues to use power even when the chair unit is not moved (LEDs, display, etc.).

Fuse 40 A

Transformer/rectifier

Charging contact

Charging circuit Power module

Glass fuses

Fig. 6-3 On/Off switch

1



36

Power supply system

6.3 Charging the batteries

The batteries are charged when the brush contacts of the drive unit make contact with the rail charging contacts. The contact strips on the drive unit are connected to the connectors on the power board (see Fig. 6-2). If the stairlift is not properly positioned at the charging position, the user is warned by an acoustic signal.

The stairlift brush contacts (1) are incorporated in the load assembly mounted under the drive unit.

The load assembly has a cam (2) that prevents the chair being pushed backwards. The load assembly is also fitted with two forks (3) that slide over the rack on the rail and ensure that the brush contacts are always properly positioned with respect to the rail.

The charging is easily controlled by pressing the [E] button on the service board and measuring the DC voltage directly at the battery terminals. To measure this, the stairlift must first be driven away from the charging contact and then back onto the charging contact. The voltage should then gradually increase to the maximum voltage.

Fig. 6-4 Charging contact

Fig. 6-5 Charging assembly

1

2

3



Power supply system

6.4 The rail charging contacts

The user must always ensure that the chair is positioned correctly on a set of charging contacts if the batteries are to remain fully charged. This happens automatically, since the chair stops when it arrives at a set of charging contacts. The stairlift always stops automatically at the lower charging contact. This is recognized as the start point since the polarity of the bottom set of charging contacts is opposite those of the other charging contacts.

If there is no power on the lower charging contact, the system will not 'see' the charging contact any longer. The stairlift will then stop at the 0 position, but no reset will be performed.

The lower charging contact is also the software starting point from which the distances to the other positions on the rail are determined.

6.5 The transformer

The charging contacts are connected to the mains via a transformer. The type of transformer is prescribed by ThyssenKrupp:

- article number: 07.72.40.100

- voltage in: 220 VAC 50/60 Hz

- voltage out: 33 VDC

- power out: 82.5 Watt.

6.6 Fuses

TransformerThe transformer is fitted with an automatic fuse. If the transformer is overloaded, the fuse (a bi-metallic fuse) gets hot and switches the transformer off automatically. Once the transformer has cooled down it will automatically switch on again.

Fig. 6-6 Charging contact polarity

CAUTIONThe system does not charge if there is no power on the charging contacts.



38

Power supply system

Power boardThe power board is equipped with two fuses.

- A 2.5 A protects the battery charging circuit.

- A 500 mA fuse protects the supply for the various printed circuit boards.

BatteriesThe batteries are protected by a 40 A fuse.

6.7 Measurement points and LED indications

The following voltages can/must be measured.

The following LED on the power board indicates the status of the supply. All other LEDs can of course be used as an indication of the presence of the supply voltage.

Part Measurement point Voltage (V)

Main board Connector J4 12 Vdc

Power board 3V3, 5V and 12V, as indicated on the printed circuit board

3V3, 5V and 12V

Between J2 and J3 Battery voltage

Transformer Input terminals (Uin) 220 +/- 10% (VAC)

Transformer Output terminals (Uuit) 33 +/- 10% (VDC)

Part LED Meaning

Power module Green LED - Lit when all output voltages are present.



39

7 Use of the service board

The service board is located at the front of the drive unit immediately under the covers. With this board it is possible to set the service settings of the Flow2.

7.1 Operation

The carrying frameAt the factory, a handle with a switch is fitted to the drive unit that is connected to the connection 5. The drive unit can be carried by the handle while the drive can be switched on and off with the inbuilt switch. Using this, it is simple to ride the drive unit onto the rail. After installation the handle with the switch can be removed and the electrical connection of the switch can be disconnected.

The Arrow armrest controlFor service purposes the Arrow lift armrest control can be connected to connection 5 on the service board.

The mode switchThe normal operating mode for the Flow2 is mode 0. When the lift is in this mode, the display is extinguished and it is not possible to select another mode. To select another mode:

1. Switch the lift off.

2. Switch the mode switch to another position.

3. Switch the lift on again.The display shows which mode the lift is switched to.

4. Choose the required mode with the mode switch.Modes 1 ... 3 are service modes in which the lift can be used in special modes. These modes can always be selected.

Modes 4 ... 9 are modes in which settings are set and can be changed. For this the Flash card has to be present. These modes cannot be selected without the Flash card in the slot.

The DEI control buttonsDepending on the mode selected (4 ... 9), various settings can be changed. The procedure for changing the settings is as follows:

- The selected mode is activated by briefly pressing the E button and the current setting appears on the display.

- The displayed value is decreased each time the D button is pressed.

- The displayed value is increased each time the I button is pressed.

- Keep the E button pressed for 2 seconds to confirm the changed value and copy the setting to the working memory.

Fig. 7-1 Drive unit switch



40

Use of the service board

- Turning the mode switch cancels the change of a setting in a selected mode so that unconfirmed settings remain unchanged.

After changing data, always switch the lift briefly off and then on again to ensure that the lift makes a ‘clean’ start.

7.2 Overview of the modes

The Flow2 has a number of settings and service capabilities. 10 different operating/service modes can be selected with the mode switch. The selected mode is shown on the display.

When the lift is in mode 0 or 2, the battery voltage can be requested with the E button. If this voltage is lower than 25.0 Volt, there is a chance that a ‘Battery-low’ error will be generated.

When a fault occurs, this will be shown by a code in the display preceded by the letter E. A sticker is attached to the cover containing a short description of the error codes (also see Chapter 5).




Service modesThe following is a short description of the various service modes.

Mode Description

Normal modeIn this mode all safety equipment is switched on and the safety processor works normally. Normally the display will switch off in this mode. Only when a fault is discovered in the system will this be shown in the display. For safety reasons, this mode can only be selected when switching on. It is not possible to leave this mode with the mode switch without first switching off the lift. This mode is active after switching on the lift.It is possible to select this mode from another mode. In this case, mode 0 is not activated by switching on the unit. ‘-0-’ is still shown in the display. Functionally, this condition is the same as the ‘real’ mode 0, but another mode can be selected with the mode switch. The voltage can be read out with the [E] button.

Reset modeIn this mode only the minimum required safety equipment is switched on. The lift can only be moved slowly downwards and will stop at every parking place.When the lift stays still at a charging contact for a longer period, leaving this point is no longer possible in this mode.This mode can be selected with the mode switch or with the creep switch. The creep switch has the highest priority and will immediately switch the lift from any mode to mode 1 immediately.

Service modeThis mode is very handy for testing the stairlift. All safety equipment is switched on, but the safety processor is switched off.In this mode it is possible to operate the lift with a remote control (Arrow armrest control). As soon as there is contact with a FlowMate program, the lift can be operated with the ‘L’, ‘R’, ‘P’ and ‘C’ buttons.The voltage can be read out with the [E] button.Read out which RF box has been operated. This can be read out on the display.

Drive-in modeThis mode is primarily intended for the installation of the Flow2. All ‘difficult’ error messages are disabled in this mode. As long as the D or I button is pressed, the lift will move slowly to the left or right. When the E button is pressed, the lift will level itself and at the same time search for the swivel null point. The use of the handgrip with the inbuilt switch is very handy. When connected to the three-pin mate-n-lock plug, this switch works the same as the D and I buttons.All other controls are disabled to prevent accidents due to operation of the remote control.



42


Calibrate levellingWith a good calibration of the levelling, the chair will stand up straight. This will be roughly right when the lift is delivered. Because of small deviations in the levelling sensor the chair can be a little tilted. This can be corrected in this mode. With the D and I buttons a correction factor can be adjusted in steps.Press the E button for 2 seconds to accept and copy the new setting.

Calibrate swivellingIn principle, this mode is the same as mode 4, except that this mode concerns the adjustment of the seat swivel null point.A properly adjusted chair is parallel to the rail.

LearnRail modeNormally the rail data table is supplied from factory on the Flash card.In mode 6 it is possible to adjust this data and to completely re-program it.

LearnRf modeIn this mode remote controls (so-called RF boxes) can be registered with the stairlift electronics. The data for the remote controls such as the armrest control and the call and park units are supplied from the factory on the Flash card.It can nevertheless still be necessary to re-register a unit when, for example, a unit is replaced.

Mode Description




The following table shows what operations can be used in which modes.

Assign call and park positionsAfter all the call and park units have been registered, in this mode a call and park unit can be linked to a call and park position. Normally this data is supplied with the lift on the Flash card, but it can sometimes be necessary to change this data.

Miscellaneous optionsThis mode is a ‘collecting pot’ for all sorts of handy settings that do not 'fit' in the modes already discussed. So, the following settings are included in this mode:

- left or right rail (setting is necessary to ensure that the pulse counter increases when the lift moves upwards)

- presence of automatic swivel

- audio signal volume setting

- RF channel and repeater setting

- backup and restore data

- read in the factory settings again.

- read out the operating hours.

Special optionsThis is a double function of --9--. There are two options in this mode:

- erasing the parameters, CPd, after which the parameters are copied from the software version last programmed. The hours counter is not reset

- erasing the rail table, after which a standard table will be created

Mode 0 1 2 3 4 5 6 7 8 9

Armrest control x

Attendant control x

Call and park unit x

Service board operating buttons x x

Arrow armrest control x x x

Creep mode button x

Mode Description



44


7.3 Mode 4: Calibrate the horizontal position

7.4 Mode 5: Calibrate the swivel position

D = decrease valueE

E

E2s

- 4 -

I = increase value

-99 .. 99Enter horizontal position

“Ping”

1s = press button for 1 second2s = press button for 2 secondsFig. 7-2 Flow diagram mode 4

The new value is saved

D = decrease valueE

E

E2s

- 5 -

I = increase value

-99 .. 99Enter swivel position

The new value is saved

1s = press button for 1 second2s = press button for 2 secondsFig. 7-3 Flow diagram mode 5

“Ping”




7.5 Mode 6: Program the rail data table

I = increase valueI1s = delete value

Fig. 7-4 Flow diagram mode 6

D = decrease valueD1s = delete value

E

E

E

E2s

- 6 -

E

I = increase valueI1s = delete angle value

S--, S1 .. S9Enter speed


I = increase valueI1s = delete angle value

A--, A-18 .. A18Enter turn angle



H--, H0 .. H9Enter halt position



P--, P0 .. P9Enter parking position


R--, R-18 .. R18Enter rotation

The new values are saved

1s = press button for 1 second2s = press button for 2 seconds

(H--) E

E2s

E2s

E2s

E2sE

“Ping”

(H0 .. H9)E



46


7.6 Mode 7: Install RF components


E

Operate a call and park unit or an attendant control

E2s

- 7 -

Operate the armrest control

- ? -

D = decrease IDAtt, CP8, ......, CP0

I = increase IDCP0, CP1, ...... , CP8, Att

CP0The call and park unit is registered. Set ID.

The new RF-settings are saved


E2s

E2s

Stairlift sends Teach-in request

UIArmrest control is registered

Operate the modem

E2sMOD

The modem is registered

Operate the repeater

E2srEP

The repeater is registeredE

E

E

E

“Ping”




7.7 Mode 8: Link the call and park units to call and park locations


D = set the x value(x = Halt position)

E

E

E

E2s

- 8 -

E

I = set the y value(y = Parking position)

x0ySet call and park unit 0

The new settings are saved

E2s

E2s







“Ping”




x0ySet call and park unit 8 E2s



48


7.8 Mode 9: Program parameters


D = enter left railr L

E

E

E2s

- 9 -

E

I = enter right railr r

r r, r LEnter rail type

The new values are saved


E2s

E2s

E2s

E2s

E

“Ping”

D = enter automaticS A

I = enter manual controlS M

S A, S MEnter swivel type

D = repeater option offrp0

I = repeater option onrp1

rp0, rp1Repeater setting

D = decrease channelCH3, CH2, CH1

I = increase channelCH1, CH2, CH3

CH.1, CH.2, CH.3Set RF channel

D = decrease volumeV1.9 .. V1.0

I = increase volumeV1.0 ..V1.9

V1.xSet tone volume (normal)



V2.xSet tone volume (error)



V3.xSet tone volume (alarm)

E2s

E2s

rFdrestore factory settings

bubackup all settings

rEsrestore all settings

E2s

E2s

E2s

E

E

E

E

E

E

Command executed

“Ping”

D = hours I = minutes

HrSdisplay operating hours E

E




7.9 Special mode 9

1. Switch the stairlift off with the on/off switch.

2. Set the mode switch to position 9.

3. Switch the stairlift on while keeping the D button pressed.

7.10 Programming the rail data

Before we make any changes to an existing program it is advisable to make a copy of all the settings. Such a copy can then be reloaded in case something goes wrong with the changes. Of course, this backup/restore option is only possible if there is a Flash card in the card holder.

7.10.1 Backup/Restore/Clear optionsBackup/Restore:

Switch the lift on, select mode 9, press [E] and step to the bu- ( ) option. Make a backup of the current settings by pressing [E] for 2 seconds. This makes a backup copy that can later (mode 9,

rES- ( ) option of restore) be reloaded again in case something goes wrong.

If we are going to program a completely new rail, it makes sense to erase all of the 'old' table data first. There is also an option for this! Clear: Stay in mode 9 but switch the lift off, keep the [D] pushbutton pressed and switch the lift on again. A

9 ( ) now appears in the display, which indicates that the mode 9 double function has been activated. This mode contains the more dangerous options. Now press [E] and choose one of the following options:

E

E

E2s

≡ 9 ≡

E

CPDClear parameter data Command executed

E2sCRD

Clear rail data

“Ping”


Fig. 7-8 Special mode 9



50


'Clear Rail Data': The rail data is erased.'Clear Parameter Data': The parameter settings are erased. Note: This also applies for the type of rail and swivel

seat.

After choosing the correct erase option, the erase action is performed when the [E] pushbutton is pressed for 2 seconds.

7.10.2 Programming menuProgramming is done via mode 6. A selection can be made from the various types of action with the [E] pushbutton. The chosen type is shown in the leftmost display. The other two symbols show the associated value. Depending on whether an automatically rotating seat is selected, you can choose one of the following actions:

'Speed': Speed of the lift.

Goes from 1 to 9, or rather 10% to 90%.Recognisable from an 'S' in the display

'Angle': Angle of the rotating seat.

Goes from -17 to 17, or rather -170º to 170º.Recognisable from an 'A' in the display. Appears only when there is an automatically rotating seat.

'Halt': Halt location, applicable for the armrest control and the call and park units.

Goes from 0 to 9 where 0 = reset contact.Recognisable from an 'H' in the display

'Park': Parking location. Only applicable for a call and park unit.

Goes from 0 to 9 where 0 = reset contact.Recognisable from a 'P' in the display

'Rotate': Rotation, can only be programmed at halt locations.

Only applicable for the armrest control. Goes from -17 to 17, or rather -170º to 170º.Recognisable from an rin the display, only appears when there is an automatically rotating seat.

When the centre and/or the right symbol shows a number, this indicates that the point on the rail at




which the lift is located already has an action programmed. The display then shows the associated value. When both displays show a -, this indicates that an action has not yet been programmed for this position.

The value can be changed by pressing the [I] and [D] pushbuttons. It is also possible to erase a point entered earlier. To do this, press and hold the [I] or [D] pushbutton briefly.

In mode 6 it is possible to move the lift with the support bracket or the armrest control. When this is done, the lift will always stop when a previously programmed action is passed. This also applies for the type of actions as selected in the display, so if the display shows an 'A' the lift will only stop if an 'Angle' action is passed.

7.10.3 Programming the speed profile and charging contactsExperienced programmerswill have little trouble programming the right speed profile. For someone with only a little experience, the placing of post-itnotes in advance with texts such as H0, S3, S7, P1 etc. at the right rail position for the speed and the charging contacts can be helpful.

Now carry out the following steps:

1. Select mode 9, option r- ( ) for rail. Now set the correct rail. When you press [D], this will be a Left-handed rail (rail on the left), recognisable from the 'L' in the display. By pressing the [I] pushbutton we select a Right-Handed rail (rail on the right) and an ris shown in the display. After the right selection has been made, the [E] pushbutton must be pressed again for 2 seconds. The correct rail has now been programmed.

2. Select mode 9, option S- ( ) for the seat rotation. Now use [D] and [I] to select an

automatic (A) or manual (M) seat rotation, recognisable from the 'M' or 'A' in the display. After the right selection has been made, the [E] pushbutton must be pressed again for 2 seconds. The right seat rotation has now been programmed.

3. Now drive the lift back to the reset contact. At the moment that the charging blades come into

contact with the reset contact, the message rSt- ( ) must appear briefly in the display.

4. Select mode 6 and choose type 'H' input with the [E] pushbutton. Move the lift so that it is in the centre of the reset contact and choose the correct 'halt' contact number (that is 0 here) with the [D] and [I] pushbuttons.

5. Now choose type 'S' input with the [E] pushbutton and enter the required speed with [D] and [I].

CAUTIONDuring programming (mode 6), the lift will NOT stop automatically at the ends of the rail. In other words: The lift will cheerfully run off the rail if the ‘programmer’ does not watch



52


6. Move the lift to the next point, choose the 'H', 'P' or 'S' option and program the correct value. Repeat this procedure over the complete length of the rail. Incorrectly entered points can be erased by pressing [I] or [D] for 2 seconds. Otherwise, when moving, the lift will stop automatically at a previously programmed point when the point is of the same type as shown in the display.

7. When programming points, the control will place them in a table. Unfortunately, this data will be lost if the lift is switched off in the meantime. By pressing the [E] pushbutton for 2 seconds, all of the data already entered will be placed in a permanent memory so that the risk of intermediate loss can be avoided. It is therefore advisable to do this now and then. In any case after completing the programming.

After the speed profile has been entered the lift can be switched to mode 2. The profile just entered can now be tested.

7.10.4 Programming the seat profile and rotationsBefore starting to program the seat profile, ensure that the speed profile and the charging contacts have been entered correctly. Automatic seat rotation must be selected and the position counter must also be correct.

The Aand raction are programmed in a similar manner to the speed profile procedure described in 0. It is important that 'r' actions can only be programmed 'on top of' an already programmed 'H' of 'P' action. Proceed as follows: Choose type 'H' or 'P' and move the lift to the associated charging contact until the lift stops. Now choose type 'r' and enter the correct value with [I] and [D]. The new 'r' action programmed is now placed 'on top of' the 'H' or 'P' action.

While programming the seat profile, the control will place the actions entered in the table already created. The chair will also take up the new angle entered when the lift moves. This can be helpful, but it can also be confusing when an 'A' action further along the rail has not yet been programmed. The chair will then move to a value interpolated between the angle just programmed and a possible angle further down the table. Intermediate saving of the table (press [E] for 2 seconds) is also advisable here now.


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