K18127 UNIT SPEC
1 OF 2
Unit Specification
saue
3500 Annapolis Lane North, Minneapolis, MN 55447
Telephone: (612) 509-2084 Telefax: (612) 559-0108
ISSUE: 1 DATE: March 1995
MCV104A5927
Electrical Displacement Control
GENERAL DESCRIPTION
This device is a two-stage electrohydraulic pump stroke control which uses mechanical feedback to establish closed loop
control of the swashplate angle of Sauer-Sundstrand Series 20 PV. Refer to bulletin number 95-8965 for more information.
Features:
◆
Standard.
© Copyright 1995, SAUER-SUNDSTRAND COMPANY.
All rights reserved. Contents subject to change.
ELECTRICAL CONNECTION
1835
The EDC is designed to be controlled from a dc current source or voltage source. Pulse width modulation (PWM) is not required.
But if a PWM signal is used, avoid a carrier frequency < 200 Hz. Do not use a pulse current of more than 120% of that required
for full output.
MAXIMUM CONTINUOUS VOLTAGE @ 93.9
°
C (200
°
F): 7.5 Vdc
ELECTRICAL CHARACTERISTICS
B
C
D
A
+
Produces
Flow Out
Of Port
Input
Shaft
Rotation
A or C B or D
A or C B or D
A D B A
A D A B
Clockwise
Counterclockwise
Start Current
Full Stroke Current
Start Current
Full Stroke Current
A and C B and D
A and C B and D
A
B
C
D
+
+
+
B
C
D
A
+
INPUT SHAFT ROTATION VS. TERMINAL CONNECTION VS. OUTPUT FLOW
(+) Voltage to Terminal
One of Dual Coils Dual Coils in Parallel Dual Coils in Series
(These voltage levels are at 75
°
F (24
°
C).)
A/B 22 mA with 0.44 Vdc
A/B 125 mA with 2.5 Vdc
C/D 22 mA with 0.35 Vdc
C/D 125 mA with 2.0 Vdc
22 mA with 0.2 Vdc
125 mA with 1.2 Vdc
11 mA with 0.40 Vdc
62 mA with 2.14 Vdc
Pump Phasing With EDC Manual Operator (MO)
Pump
MO
Rotation
Pump Flow
Rotation Out Port
CW
Towards Connector
Towards Connector
A
CCW B
1622
D
C
A
B
Pin Orientation of 4-pin, 90
°
MS Mating
Connector. Part No. MS3108E-14S-2S
(Sauer-Sundstrand Part No. K03384). Dimensions of the MCV104A5927 in Millimeters (Inches).
