S42 Pump Electrical Displacement Control (EDC)

Transcription

1 MAKING MODERN LIVING POSSIBLE Electrical Installation S42 Pump Electrical Displacement Control (EDC) powersolutions.danfoss.com

2 Revision history Table of revisions Date Changed Rev September 2015 Converted to Danfoss layout CA January 2013 Currents BA May 2010 First edition AA 2 L Rev CA September 2015

3 Contents Literature references Product overview Electrical installation literature references...4 Latest version of technical literature... 4 Product image... 5 Nomenclature...5 Theory of operation...6 Hydraulic schematics... 7 Electrical specifications... 7 Pinout...8 Pin compatibility...9 Input/output matrix... 9 Mating connector...9 L Rev CA September

4 Literature references literature references Literature title Description Literature number S42 Axial Piston Pumps Technical Information Controls Function Blocks User Manual Complete product electrical and mechanical specifications Compliant function block set-up information L Latest version of technical literature Danfoss product literature is online at: 4 L Rev CA September 2015

5 Product overview Product image Nomenclature S42 Rotation Y C D E F Q R G S T U H J K L M N P Code D options Option E1A3 E1A4 E1A5 E1A6 E1A7 Description Electrical Displacement Control, ma, Packard Weather-Pack connector, low gain spool Electrical Displacement Control, ma, MS connector, low gain spool Electrical Displacement Control, ma, Packard Weather-Pack connector, high gain spool Electrical Displacement Control, ma, MS connector, high gain spool Electrical Displacement Control, ma, DEUTSCH connector, high gain spool Only certain control options for the S42 pump utilize the Electrical Displacement Control (EDC). Please refer to the pump s nomenclature to determine if the pump is equipped with the proper option. The nomenclature can be found on the pump s nametag. For nomenclature details, refer to S42 Axial Piston Pumps Technical Information, L Rev CA September

6 Product overview Theory of operation The Electrical Displacement Control (EDC) uses an electrohydraulic Pressure Control Pilot (PCP) stage to provide a differential pilot pressure. The PCP stage converts an electrical input signal to a hydraulic input signal to operate a spring centered sensing piston. The sensing piston produces a mechanical input to the servo control valve which ports hydraulic pressure to either side of the servo piston. The servo piston operates the swashplate varying the pump s displacement and flow direction. The position of the swashplate is proportional to the electrical input signal. The control has mechanical feedback that regulates the servo valve in relation to swashplate position to maintain displacement at the commanded level regardless of changes in system pressure. Any swashplate position error is fed back to the servo valve for instant correction. The servo control valve has variable geometry porting to regulate swashplate response relative to input command. The control performs small displacement change commands with maximum controllability throughout the entire stroking range of the pump. It completes large displacement change commands with rapid swashplate response. Optional servo supply and drain orifices are available for special response needs. EDC proportional actuation Displacement 100 % Current ma % W Warning 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, sufficient to stop and hold the vehicle or machine in the event of hydrostatic drive power loss. 6 L Rev CA September 2015

7 Product overview Hydraulic schematics EDC hydraulic schematic M4 M5 X1 X2 Electrical specifications Pump displacement versus control current Displacement 100 % -b -a Current ma 0 a b 100 % electrical specifications Threshold current End current Maximum current Rated power A B Coil Resistance at 24 C (75 F) C D Coil Resistance at 24 C (75 F) Recommended PWM frequency * 18 ma 105 ma 350 ma at 6 Vdc 18 W 20 Ω 16 Ω 200 Hz * Verify the PWM frequency is set correctly in the PLUS+1 controller. The default is set at 4000 Hz which will significantly reduce EDC performance. L Rev CA September

8 Electrical installation Pinout Pin location D C A B Pinout Pin A B C D Description PWM signal Ground Ground PWM signal Pin location A B C D Alternative pinout Pin A B C D Description PWM signal Ground Ground PWM signal Pin location DEUTSCH 4-way connector pinout Pin Description 1 PWM signal 2 Ground 3 Ground 4 PWM signal 8 L Rev CA September 2015

9 Electrical installation Pin compatibility PLUS+1 module pin type Pin Function 1, 4, A, D PWMOUT/DOUT/PVG Power supply 1, 4, A, D PWMOUT/DOUT/PVGOUT 2, 3, B, C Power ground - W Warning Unintended vehicle or machine movement hazard. Verify the wiring harness to ensure the correct PLUS +1 pin is properly connected to each control pin. Input/output matrix Pump output flow direction versus control signal Shaft rotation CW CCW Positive current to terminal A, C, 1, 3 B, D, 2, 4 A, C, 1, 3 B, D, 2, 4 Port A flow Out In In Out Port B flow In Out Out In High pressure servo gauge port M4 M5 M4 M5 High pressure EDC pilot gauge X2 X1 X2 X1 Mating connector MS connector parts list Description Quantity Ordering number MS connector 1 SG3108E-14S-2S-SR Mating connector kit 1 Danfoss K08106 Packard Weather-Pack connector parts list Description Quantity Ordering number 4 way black Weather-Pack tower sealed female connector assembly Female terminals (18 to 20 AWG) Cable seals (2.03 to 2.85 mm cable diameter) Mating connector kit 1 Danfoss K03384 DEUTSCH connector parts list Description Quantity Ordering number 4 way gray connector assembly 1 DEUTSCH DT06-4S-E003 Female nickel-plated terminals (16 to 18 AWG) 4 DEUTSCH Mating connector kit 1 Danfoss K23511 L Rev CA September

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12 Products we offer: Bent Axis Motors Closed Circuit Axial Piston Pumps and Motors Displays Electrohydraulic Power Steering Electrohydraulics Hydraulic Power Steering Integrated Systems Joysticks and Control Handles Microcontrollers and Software Open Circuit Axial Piston Pumps Orbital Motors PLUS+1 GUIDE Proportional Valves Sensors Steering Transit Mixer Drives Danfoss Power Solutions 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 in the harsh operating conditions of the mobile off-highway market. Building on our extensive applications expertise, we work closely with our customers to ensure exceptional performance for a broad range of off-highway vehicles. We help OEMs around the world speed up system development, reduce costs and bring vehicles to market faster. Danfoss Your Strongest Partner in Mobile Hydraulics. Go to for further product information. Wherever off-highway vehicles are at work, so is Danfoss. We offer 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. Please contact the Danfoss Power Solution representative nearest you. Comatrol Schwarzmüller-Inverter Turolla Hydro-Gear Daikin-Sauer-Danfoss Local address: Danfoss Power Solutions (US) Company 2800 East 13th Street Ames, IA 50010, USA Phone: Danfoss Power Solutions GmbH & Co. OHG Krokamp 35 D Neumünster, Germany Phone: Danfoss Power Solutions ApS Nordborgvej 81 DK-6430 Nordborg, Denmark Phone: Danfoss Power Solutions Trading (Shanghai) Co., Ltd. Building #22, No Jin Hai Rd Jin Qiao, Pudong New District Shanghai, China Phone: 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 to products 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. L Rev CA September Danfoss A/S, 2015