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MAKING MODERN LIVING POSSIBLE

Electrical Installation

H1 MotorElectric Proportional Control M1,M2, K1, K2

powersolutions.danfoss.com

http://powersolutions.danfoss.com

Revision history Table of revisions

Date Changed Rev

September 2015 Converted to Danfoss layout BA

April 2009 Minor correction AC

March 2009 Minor correction AB

February 2009 First edition AA

Electrical Installation H1 Motor Electric Proportional Control M1, M2, K1, K2

2 11051228 • Rev BA • September 2015

Literature referencesH1 Motor Electric Proportional Control M1, M2; K1, K2 literature references............................................................ 4Latest version of technical literature......................................................................................................................................... 4

Product overviewProduct image................................................................................................................................................................................... 5Nomenclature....................................................................................................................................................................................5Theory of operation.........................................................................................................................................................................6

Electric proportional control M1XX, M2XX, K1XX, K2XX...............................................................................................6Pressure Compensator Override (PCOR)............................................................................................................................ 6Pressure Compensator Configuration.................................................................................................................................6

KXK1, KXK2 with electric Brake Pressure Defeat (BPD).............................................................................................6KXKA, without Brake Pressure Defeat.............................................................................................................................6MXCA, without Brake Pressure Defeat........................................................................................................................... 6

Displacement versus input command................................................................................................................................ 7Hydraulic schematics...................................................................................................................................................................... 8Electrical specifications.................................................................................................................................................................. 8

Electrical installationPinout................................................................................................................................................................................................. 10

DEUTSCH connector................................................................................................................................................................10Pin compatibility............................................................................................................................................................................ 10Mating connector.......................................................................................................................................................................... 10

DEUTSCH connector parts list .............................................................................................................................................10


Contents

11051228 • Rev BA • September 2015 3

H1 Motor Electric Proportional Control M1, M2; K1, K2 literature references

Literature title Description Literature number

H1B Bent Axis Variable Displacement Motors TechnicalInformation

Complete product electricaland mechanicalspecifications

11037153

PLUS+1® Compliant H1B Motor Electric Proportional ControlK, M Function Block User Manual

Compliant function blockset-up information

11063629

PLUS+1® Compliant H1B Motor Electric Proportional ControlK, M with 0 Degree Capability Function Block User Manual

Compliant function blockset-up information

11063628

Latest version of technical literature

Danfoss product literature is online at: http://powersolutions.danfoss.com/literature/


Literature references

4 11051228 • Rev BA • September 2015

http://powersolutions.danfoss.com/literature/

Product image

H1 Motor Electric Proportional Control M1, M2; K1, K2

Nomenclature

A B C D E F G H J K L M N P Q RH1 B A N N N N N N

Code B and C options

B Description C Description

M1 Electric proportional control, 12 V,DEUTSCH DT 04-2P connector, de-energized = minimum displacement,without PCOR

CA Without brake pressure defeat

M2 Electric proportional control, 24 V,DEUTSCH DT 04-2P connector, de-energized = minimum displacement,without PCOR

CA Without brake pressure defeat

K1 Electric proportional control, 12 V,DEUTSCH DT 04-2P connector, de-energized = minimum displacement, withPCOR

K1 With brake pressure defeat, 12 V,DEUTSCH DT 04-2P connector, de-energized BPD = PCOR active at port A

KA Without brake pressure defeat

K2 Electric proportional control, 24 V,DEUTSCH DT 04-2P connector, de-energized = minimum displacement, withPCOR

K2 With brake pressure defeat, 24 V,DEUTSCH DT 04-2P connector, de-energized BPD = PCOR active at port A

KA Without brake pressure defeat

Only certain control options for the H1B motor use this electric proportional control. Please refer to themotor’s nomenclature to determine if the motor is equipped with the proper option. You can find thenomenclature on the motor’s nametag. For nomenclature details, refer to H1B Bent Axis VariableDisplacement Motors Technical Information, 11037153.


Product overview

11051228 • Rev BA • September 2015 5

Theory of operation

Electric proportional control M1XX, M2XX, K1XX, K2XX

The electric proportional control consists of a proportional solenoid driving three-way porting spool.When activated, the spool ports high pressure to the larger diameter of the servo piston. The servo pistonand rotating group move to change the displacement to the point where the pressures on the servo arein balance with the force from the feedback spring.• Solenoid de-energized = minimum displacement

• Solenoid full-energized = maximum displacement

Pressure Compensator Override (PCOR)

The de-energized electric control keeps the motor at minimum displacement. The electric control can beoverridden by the PCOR using high loop system pressure. When the system pressure rises above thePCOR setting, the PCOR activates. The motor then increases to maximum displacement. The motordisplacement is regulated automatically between minimum and maximum in response to the high looppressure. This ensures optimal power throughout the entire displacement range of the motor.

Pressure Compensator Configuration

KXK1, KXK2 with electric Brake Pressure Defeat (BPD)

For propel applications, use the electric BPD option in conjunction with the PCOR option. The BPD shuttlevalve is ahead of the pressure compensator control valve. The BPD consists of an electric off/on solenoidand a two-position, three-way porting spool. The applied logic allows the pressure compensator controlto operate normally with system pressure during acceleration and cuts off the supply pressure duringdeceleration or overrun. This prevents rapid or uncontrolled deceleration while the machine is slowingdown. With the BPD solenoid de-energized, the porting spool is centered by spring force. A directionlever switch or an output signal from a microcontroller must control the BPD solenoid.

KXKA, without Brake Pressure Defeat

This option has PCOR function but no BPD function.

MXCA, without Brake Pressure Defeat

This option has no PCOR function or BPD function.


Product overview

6 11051228 • Rev BA • September 2015

Displacement versus input command

M1CA, M2CA

0102030405060708090

100

0 200 400 600 800 1000 1200 1400 1600 1800Input Command [mA]

Dis

plac

emen

t [%

]

M1-Control

M2-Control

32°

6°

Intended to be used for zero degree capability.

K1K1, K2K2

32°

6°160 bar

[2320 psi]300 bar

[4350 psi]

Intended to be used for zero degree capability.

PCOR

0102030405060708090

100

0 200 400 600 800 1000 1200 1400 1600 1800Start

SettingRangeInput Command [mA]

Dis

plac

emen

t [%

]

K1-Control

K2-Control


Product overview

11051228 • Rev BA • September 2015 7

Hydraulic schematics

Motor with electric proportional control M1CA, M2CA

A

B

n

maxmin C1

M4 M5 MB

MA

L1

L2 N

Motor with electric proportional control K1K1, K2K2

A

B

n

min maxC5 C1

M4 MBM5

L1

L1 NMA

A, B Main pressure lines

L1, L2 Drain lines

M4 M5 Gage port servo pressure

N Speed sensor (optional)

MA, MB Gage port system pressure

Electrical specifications

Electric proportional solenoid C1 specifications

Voltage M1, K1: 12V M2, K2: 24V

Maximum current 1800 mA 920 mA

Nominal resistance at 20º C [70º F] 3.66 Ω 14.20 Ω

Nominal resistance at 80ºC [176ºF] 4.52 Ω 17.52 Ω

PWM frequency range 70 to 200 Hz 70 to 200 Hz

Recommended PWM frequency* 100 Hz 100 Hz

Inductance 33 mH 140 mH

* PWM signal required for optimum control performance.


Product overview

8 11051228 • Rev BA • September 2015

Two-position solenoid data C5 specifications

Voltage D1: 12V D2: 24V

Minimum supply voltage 9.5 Vdc 21.1 Vdc

Maximum supply voltage (continuous) 14.6 Vdc 29.0 Vdc

Nominal resistance at 20º C [70º F] 8.4 Ω 34.5 Ω


Product overview

11051228 • Rev BA • September 2015 9

Pinout

DEUTSCH connector

Pin location

1 2

Pinout

Pin Function

1 PWM signal

2 Ground

Pinout (alternative)

Pin Function

1 Ground

2 PWM signal

Pin compatibility

PLUS+1® module pin type

Pin Function

1, 2 PWMOUT/DOUT/PVG Power supply*

1, 2 PWMOUT/DOUT/PVGOUT*

1, 2 Power ground* Use output pins with configurable PWM frequency.

Mating connector

DEUTSCH connector parts list

Description Quantity Ordering number

Connector 1 DEUTSCH DT06-2S

Wedge lock 1 DEUTSCH W2S

Socket contact (16 and 18 AWG) 2 DEUTSCH 0462-201-16141

Mating connector kit 1 Danfoss K29657


Electrical installation

10 11051228 • Rev BA • September 2015


11051228 • Rev BA • September 2015 11

Danfoss Power Solutions is a global manufacturer and supplier of high-quality hydraulic andelectronic components. We specialize in providing state-of-the-art technology and solutionsthat excel in the harsh operating conditions of the mobile off-highway market. Building onour extensive applications expertise, we work closely with our customers to ensureexceptional performance for a broad range of off-highway vehicles.

We help OEMs around the world speed up system development, reduce costs and bringvehicles to market faster.

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Go to www.powersolutions.danfoss.com for further product information.

Wherever off-highway vehicles are at work, so is Danfoss. We offer expert worldwide supportfor our customers, ensuring the best possible solutions for outstanding performance. Andwith an extensive network of Global Service Partners, we also provide comprehensive globalservice for all of our components.

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Local address:

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Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies toproducts already on order provided that such alterations can be made without changes being necessary in specifications already agreed.All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

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h1b motor electric proportional control m1, m2, k1, k2 ...files.danfoss.com/documents/h1b motor...

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