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Series 90

Electrical

Displacement

Control (EDC)

Product Electrical

Installation

Technical

Inormation

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Series 90 Electrical Displacement Control (EDC)

Product Electrical InstallationTechnical Inormation

Revisions

Date Page Changed Rev.

21 Sep, 2011 6 PWM requency recommendation BA

5 Sep, 2007 6 Maximum current specifcation corrected in table AB

10 Apr, 2007 AA

Version

Revisions

2011 Sauer-Danfoss. All rights reserved.

Sauer-Danfoss accepts no responsibility for possible errors in catalogs, brochures and other printed material.

Sauer -Danfoss reserves the right to alter its products without prior notice. This also applies to products already

ordered provided that such alterations can be made without aecting agreed specications. All trademarks

in this material are properties of their respective owners. Sauer-Danfoss, the Sauer-Danfoss logotype, the

Sauer-Danfoss S-icon, PLUS+1, What really matters is inside and Know-How in Motion are trademarks of the

Sauer-Danfoss Group.

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Product Electrical InstallationTechnical InormationContents

Literature Reerences Refer to S90 Axial Pumps Technical Inormation520L0603 or complete product electrical

and mechanical specications.

Refer to S90 EDC Control Compliant Function Block User Manual11022912 or compliant

function block set-up information.

Technical literature is available at: www.sauer-danoss.com

Product Overview Product Image .................................................................................................................................................4

Nomenclature..................................................................................................................................................4

Description/Theory o Operation .............................................................................................................5Electrical Specifcations................................................................................................................................6

Electrical Installation Pinout .................................................................................................................................................................7

Pin Compatibility ............................................................................................................................................7

Input/ Output Matrix..................................................................................................................................... 7

Mating Connector ..........................................................................................................................................8

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Product Overview

Product Image

Nomenclature Only certain control options or the Series 90 pump utilize the Electrical Displacement

Control (EDC). Please refer to the pumps nomenclature to determine if the pump is

equipped with the proper option. The nomenclature can be found on the pumps name

tag.

Series 90 Pump Model Code

9 0

A R C M P J G N F L H T W Y Z K

M Module - EDC Control Options

Option Description

KA Electrical Displacement Control

KP Electrical Displacement Control

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Product Overview

Description/

Theory o Operation

The electric displacement control uses an electrohydraulic Pressure Control Pilot (PCP)

valve to control the pilot pressure. The PCP converts an electrical input signal to a

hydraulic input signal to operate a 4-way servo valve, which ports hydraulic pressure toeither side of a double acting servo piston. The servo piston tilts the cradle swashplate,

thus varying the pumps displacement from full displacement in one direction to full

displacement in the opposite direction.

The control has a mechanical feedback mechanism which moves the servo valve in

relation to the input signal and the angular position of the swashplate. The electrical

displacement control is designed so the angular rotation of the swashplate (pump

displacement) is proportional to the electrical input signal. Due to normal operating

force changes, the swashplate tends to drift from the position preset by the machine

operator. Drift, sensed by feedback linkage system connecting the swashplate to the

control valve, will activate the valve and supply pressure to the servo piston, maintaining

the swashplate in its preset position.

EDC Proportional Actuation

Pump Displacement Vs. Control Current

"0"Current mA

Displacement

100 %

100 %2423

Hydraulic Schematics

Electric Displacement Control Schematic

M5 M4 T P

X2 X1

P102 024EFeedback from Swashplate

WWarning

Unintended vehicle or machine

movement hazard. The loss of

hydrostatic drive line power, in any

mode of operation (forward, neutral, or

reverse) may cause the system to lose

hydrostatic braking capacity. You must

provide a braking system, redundant to

the hydrostatic transmission, sucient to

stop and hold the vehicle or machine in

the event of hydrostatic drive power loss.

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Product Overview

Electrical Specications Pump Displacement Vs. Control Current

"0"Current mA

Displacement

100 %

a b

-b -a

100 %P003479E

Specifcations

Threshold current (-a, a) 14 mA

End current (-b, b) 85 mA

Maximum current 100 mA

Rated power 18 W

A - B Coil resistance at 24C (75F) 20

C - D Coil resistance at 24C (75F) 16

Recommended PWM requency* 200 Hz

* Verify the PWM frequency is set correctly in the PLUS+1 controller. A PWM frequency of 200 Hz or higher isrecommended, including the default frequency of 4000 Hz.

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Product Electrical InstallationTechnical InormationElectrical Installation

Pinout MS Connector Pinout

Pin Connector

A PWM signal

B Ground

C Ground

D PWM signal

Pin location

AB

DC

P102 027E

Delphi Weather-Pack Connector Pinout

Pin Connector

A PWM signal

B Ground

C Ground

D PWM signal

Pin location

B

C

D

A

P102 028E

Pin Compatibility PLUS+1 Module Pin Type/ S90 EDC Pin Compatibility

PLUS+1 module pin type Acceptable use: S90 EDC pin

PWMOUT/DOUT/PVG Power supply* A, D

PWMOUT/DOUT/PVGOUT* A, D

Power ground - B, C

* Use output pins with congurable PWM frequency.

Input/ Output Matrix S90 EDC Input/ Output Matrix

Input shat rotation Clockwise Counterclockwise

Positive current to term A D A D

Port A fow Out In In Out

Port B fow In Out Out In

Service cylinder M5 M4 M5 M4

WWarning

Unintended vehicle or machine movement hazard. Verify the wiring harness to ensure

the correct PLUS+1 pin is properly connected to each control pin.

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Product Electrical InstallationTechnical InormationElectrical Installation

Mating Connector MS Connector Parts List

Description Quantity Ordering number

MS connector 1 SG3108E-14S-2S-SR

Sauer-Danfoss mating connector kit 1 K08106

Delphi Weather Pack Connector Parts List

Description Quantity Ordering number

4 way black Weather Pack tower sealed female

connector assembly1 12015797

Female terminals (18 to 20 AWG)* 4 15408312

Cable seals (2.03 to 2.85 mm cable diameter)* 4 12015323

Sauer-Danfoss mating connector kit 1 K03384

* Contact Delphi for proper components if using dierent wire size than listed.

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Notes

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Notes

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Local address:

Sauer-Danfoss GmbH & Co. OHG

Postfach 2460, D-24531 Neumnster

Krokamp 35, D-24539 Neumnster, Germany

Phone: +49 4321 871 0

Fax: +49 4321 871 122

Sauer-Danfoss ApS

DK-6430 Nordborg, Denmark

Phone: +45 7488 4444

Fax: +45 7488 4400

Sauer-Danfoss is a global manufacturer and supplier of high-

quality hydraulic and electronic components. We specialize in

providing state-of-the-art technology and solutions that excel inthe harsh operating conditions of the mobile o-highway market.

Building on our extensive applications expertise, we work closely

with our customers to ensure exceptional performance for a broad

range of o-highway vehicles.

We can help speed up system development, reduce costs and bring

your vehicles to market faster. Sauer-Danfoss Your Strongest

Partner in Mobile Hydraulics.

Go to www.sauer-danfoss.com for further product information.

Wherever o-highway vehicles are at work, so is Sauer-Danfoss.

We oer expert worldwide support for our customers, ensuring

the best possible solutions for outstanding performance. And with

an extensive network of Global Service Partners, we also provide

comprehensive global service for all of our components.

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www.comatrol.com

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www.schwarzmueller-inverter.com

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www.hydro-gear.com

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www.sauer-danfoss-daikin.com

Sauer-Danfoss (US) Company

2800 East 13th Street

Ames, IA 50010, USA

Phone: +1 515 239 6000

Fax: +1 515 239 6618

Sauer-Danfoss-Daikin LTD.

Shin-Osaka TERASAKI 3rd Bldg. 6F

1-5-28 Nishimiyahara, Yodogawa-ku

Osaka 532-0004, Japan

Phone: +81 6 6395 6066

Fax: +81 6 6395 8585

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11022666