pj-vseries

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PJ-VSeriesPJ-VSeries

Description

FeaturesG Operation range up to 7 m 23.0'

G Optical axis pitch of 20 mm 0.79"

G Water-resistant IP-65 housing

G Highly cost effective expansion system

G Built-in LED indicators simplify alignment

Detecting Distance

All models - 7 m(23.0')

Expandable Safety

Light CurtainsFlexible expansion system with an optical axis pitchof 20 mm 0.79"The PJ-V Series features KEYENCEs unique

optical axis expansion system (Safety Plus

System). The optimal detection zone can be

selected in 80-mm 3.15" increments. Thenumber of optical axes can be increased ordecreased as equipment or machinery changes.

Select from 15 steps, the widest range of detectablezones in the industryThe detection area ranges from 140 to

1260 mm 5.51" to 49.61". Three types ofexpansion units are available for designing

the detection area to fit your application.

Long-operating range of up to 7 m 23.0'

The sufficient operating range provides reliable guarding for a widevariety of equipment or machinery ranging from a compact type to a

large-scale type.

Slim and tough sensor head for use in harshenvironmentsAlthough the housing is very slim,the sensor head provides ultra-high

rigidity. Metal is used for the outer

housing, inner housing, and lockingmechanism components to provide

strength and allow the sensor headto endure vibration or impact.

LED bar indicator simplifies optical alignmentThe number of lit LEDs on the barvaries depending on the number of

clear optical axes. Anyone can easily

perform optical alignment with noassistance. In addition, if a fault

occurs, the indicators informthe operator of the fault status

instantly.

Sub-controller enables two-head operationThe sub-controller enables two-

sensor heads to be used withoutextra wiring. When a sub-controller

is connected to the main controller,the mutual interference suppres-

sion function works automatically.

Space-saving safety controllerThe controller features fault detection circuits plus three safety relays.The controller is highly compact for easy mounting to a DIN rail.

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LISTED

OSHA

*1: Strong, lightweight aluminum outerhousing with 1.6 mm 0.06" thick walls

*2: Specially molded inner housing preventsforeign matter entry.

*3: Stereoscopically molded tough steelstructural member

* When all optical axes are stably clear, allLEDs are illuminated and the LED colorchanges from red to green.

*1

*2*3

*
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Expandable Safety Light Curtains PJ

MAIN MENU PRODUCTS APPLICATIONS INDEX SELECTION GU

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As a safety light barrier for robots

used in processing/assemblingConfirmation of in-circuit tester

safety

Confirmation of ejection of molded

resin products

Confirmation of component

removal

Connector cable

Applications

Main controller

Sensor head

Expandable sensor head system

Each unit consists of a paired transmitter and receiver.

End caps are included with the base unit.

Expansion unit B also serves as the end cap.

Controller

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Selection Chart

Configuration

Combination of respective units

Example:Detection zone: 780 mm 30.71"

Number of optical axes: 40

Number of respective units

requiredPJ-V20 x 1 set

PJ-V21 x 4 sets

Base unit Expansion unit A Expansion unit B

For transmitter

For receiver

Sub-controller

ControllerSensor head

+ +

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Interconnected

Contact A(N.O.)

Contact B(N.C.)

Functions

Bar LED IndicatorThe transmitter and receiver are equipped with an indicator consisting of a bar of eight LEDs that inform the operator of

the output status or fault occurrence.

Normal operation

Clear

Output turns on.

Blocked

Output turns off.

Indicator status

Lights

Flashes

Goes off

Received light quantity insufficient

Received lightquantity is sufficient.

Received lightquantity is insufficient.

130% ormore

Margin oflight quantity

100 to130%

Optical alignment (Displays the ratioof clear optical axes to all axes.)

One optical axisis blocked

All optical axes areblocked

Flashes

Flashes

LargeRatio of clearoptical axesto all axes

Small

When a fault isdetected

* Transmitter/receiverelement failure

* Transmitter/receiver

circuit failure* Intense ambient light

entry

* Welded contact

* Cable disconnectionor short-circuiting,etc.

Flashes

Safety relayThe PJ-V Series eachuses three safety relaysto ensure safety.

One Normally opencontact and one Nor-

mally close contact are

connected and movetogether. If one relay

becomes immobilized bya welded contact, the welded contact can be detected

based on the contact gap of the other relay. This ensures

safety.

Fail-safeA fail-safe system operates to ensure safety if a failure

should occur in the system. If ambient light is received or

the output circuit is damaged, for example, an ordinaryphotoelectric sensor cannot stop the machine even if a

person accesses the hazardous area on the machine.Therefore, such a sensor cannot be regarded as fail-safe.

The PJ-V Series performs a self-check using two indepen-dent circuits to detect a failure in the circuits, ambient light

entry, or a welded relay contact. Therefore, they are high-

level fail-safe sensors that reliably stop the machine in anemergency.

LOCKOUTAccording to the setting, the PJ-V Series can invokeLOCKOUT status when power is supplied, a failure in thepart is detected, or an optical axis is blocked.

Lockout status is one of the sensors non-hazardousstatuses, in which all of the outputs are open and the

machine is stopped.

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Expandable Safety Light CurtainsPJ-V

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Element failure

Circuit failure

Element failure

Circuit failure

Ambient light entry

Welded contact

Drive circuit failure

Cable disconnection orshort-circuiting

LSI failure

Main controller

PJ-V90 Sub-controller

PJ-V91

The body features a tough double-

construction with an aluminum outerhousing and steel inner housing.

Self-diagnostic circuitThis circuit detects an internal failure in the PJ-V Series. The PJ-V Series performs a self-check using two independentself-diagnostic circuits. If a failure is detected, a stop signal is immediately sent to the machine connected to the circuits.

Transmitter Receiver Controller All

Appearance (sensor head)

Polyarylate resin, which is resistant

to oil, is used for all lens covers.The 2.5 narrow-beam lens

prevents extraneous light fromentering the lens.

Easy-to-see bar LED indicator

The mounting bracket is

made of an alloy with a strong

grip yet allows the sensorhead angle to be adjusted.

Controller Extension

When two sensor heads are used in close proximity, using

the sub-controller (PJ-V91) is convenient.

Example

Advantages in using sub-controller

Mutual interference suppression function

When the sub-controller is connected to the maincontroller, this function works automatically.

There is no need for extra wiring, eliminating wiringerror.

Wire-saving

The sub-controller can be easily connected to the maincontroller using the connector.

There is no need for wiring for power supply or outputlines.

Low cost

Using one main controller and sub-controller costs far

less than using two main controllers.

Tough oil-resistant cable

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MPCE1

MPCE2

MSCE

Arc supression

N (V ac) orcommon (V dc)

L (V ac) or+ (V dc)

FSD OFF

LOCKOUT

LOCK REL.

MPCE1 MPCE2

Arc supression

Arc supression

6 4 2 0 2 4 60

1

2

3

4

5

6

7

8

Y

R

T

Y

R

T

0 1 2 3 4 5 6 7 8

121086420246810

X

Y

X

Y

DistanceY(m)

DistanceY(cm)

Distance X (m)

TransmitterReceiver

Operating angle ()

Horizontal displacement

Vertical displacement

3.3' 6.6' 9.8' 13.1' 16.4' 19.7' 23.0'

26.2' 0.79"

0.79"

1.57"

1.57"

2.36"

2.36"

3.15"

3.15"

3.94"

3.94"

4.72"

6.6'

13.1'

19.7'

26.2'

23.0'

9.8'

16.4'

3.3'

Connections (controller)

Characteristics

Angular displacement of optical axis

(Typical)

Parallel displacement of optical axis

(Typical)

Maintenance Accessories

All parts listed below are included with the PJ-V Series and are also available separately.

Test piece

OP-31608Release tool

OP-31609Mounting bracket

OP-31784

Intermediate support

OP-31785

End cap

OP-31786

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Expandable Safety Light CurtainsPJ-V

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Expansion unit A

End cap/Expansion unit B

Release hole

Release tool

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Hints on Correct Use

For details on usage, be sure to carefully

read the Instruction Manual included withthe PJ-V Series.

Sensor head expansion Be sure to turn off the power supply before connecting

the units.

Note that if the end cap (top cover) or expansion unit Bis not attached, the PJ-V Series does not operate.

Pay attention not to confuse the transmitter with the

receiver when connecting the units. Insert the unit untilit is secure and check that it is not disconnected.

Up to 64 optical axes can be used. Increasing the

number of optical axes to more than the specifiednumber will cause a failure.

When increasing the number of optical axes to 36 or

more, use the intermediate supports included with the

base unit.

The release tool has a hook through which a string can

be passed.

When disconnecting the unit, insert the release tool(included with each unit) into the release hole in the unit

to be disconnected, and slide the unit with the tool

inserted, as shown below.

Safety Standards

The PJ-V Series qualifies for the following international

standards, and can be widely used overseas.

Compliance with international standards:

Risk level assessmentRisk level assessment for each machine stipulated by the

EN standards (EC Machine Directive). According to therisk level, appropriate measures must be taken for each

machine.

* Since the PJ-V Series is categorized as category 4, it

can be installed on any risk level machine.

Risk level assessment flowchartAccording to the flowchart below, the risk level for each

machine is first determined. Then, the safety categoryapplicable to each machine is found, and safety mea-

sures are taken by using a safety device or the like

appropriate to the category.

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Dimensions

Sensor head PJ-V20/21/22

Others Never disassemble the sensor head or controller.

Do not install power supply lines or signal lines in thesame conduit as or parallel to high voltage lines or

power lines.

Be sure to turn off the power supply before starting any

wiring. Make all electrical connections in accordancewith local electrical codes and laws.

The LOCKOUT input terminals are initially short-

circuited with a shorting bar. When using the LOCKOUTinput, remove the shorting bar.

The transmitter and receiver cable lengths can eachbe extended up to 21 m 68.90', excluding the length of

the 50 cm 19.69" cable extruding from the base unit.Properly combine the 2 m 6.6', 5 m 16.4' and 7 m 23.0'

special connector cables as required. The number of

core wires for the transmitter cable is different from

that for the receiver cable. Check the cable color sothat the transmitter cable is not combined with thereceiver cable.

(Transmitter cable: Gray, Receiver cable: Black)

The output relays incorporated into the controller canbe easily renewed by replacing the relay board unit

with a new one. Use the separately sold relay board

unit (model: OP-31788). Also, be sure to turn off thepower supply before replacing the relay board unit.

Unit: mm Inch

Rear mounting

Deadzone

Y

32

Z

25

32

X

18

29

40

22 18

22.517.5

33

20

17.527.5

33

(Opticalaxispitch)20

4050

7, Cable length: 0.5 m

Deadzone

Detec-tion

zone

240 220 206

320 300 286

400 380 366

480 460 446

560 540 526

640 620 606

720 700 686

800 780 766

880 860 846

960 940 926

1040 1020 1006

1120 1100 1086

1200 1180 1166

1280 1260 1246

1360 1340 1326

8

12

16

20

24

28

32

36

40

44

48

52

56

60

64

Number of

optical axes

Detecting

zone

140

220

300

380

460

540

620

700

780

860

940

1020

1100

1180

1260

79030*2

47030*1

X Y Z

1.57"

1.26"0.87"

0.69"0.86"

9.45"

12.60"

15.75"

18.90"

22.05"

25.20"

28.35"

31.50"

34.65"

37.80"

40.94"

44.09"

47.24"

50.39"

53.54"

8.66"

11.81"

14.96"

18.11"

21.26"

24.41"

27.56"

30.71"

33.86"

37.01"

40.16"

43.31"

46.46"

49.61"

52.80"

8.11"

11.26"

14.41"

17.56"

20.71"

23.86"

27.01"

30.16"

33.31"

36.46"

39.61"

42.76"

45.91"

49.06"

52.20"

0.71"

1.26"

0.98"

1.30"

0.79"

0.71"

1.57"

1.30"

1.97"

1.14"1.64'

1.08"0.69"

0.28"

5.51"

8.66"

11.81"

14.96"

18.11"

21.26"

24.41"

27.56"

30.71"

33.86"

37.01"

40.16"

43.31"

46.46"

49.61"

31.1"1.18"

18.5"1.18"

Side mounting

Note: When the number of optical axes is increased to the marked

number, set the unit to mounting position 1 on the intermediate supportincluded with the expansion unit.

When the number of optical axes is increased to the marked number,

set the unit to mounting positions 1 and 2, using two intermediatesupports.

*1. Mounting position for the intermediate support 1

*2. Mounting position for the intermediate support 2

CAD
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