Options M1Ca, M2Ca - Electric Proportional Control - Danfoss H1 Series Technical Information

Technical Information
H1 Bent Axis Variable Displacement Motors, Size 060/080/110/160/210/250
Controls – nomenclature, description
Options M1CA, M2CA – electric proportional control
48 | © Danfoss | December 2016
M1 – electric proportional 12 V / de-energized = min. displacement
CA – without Pressure Compensator Over Ride / without Brake Pressure Defeat
M2 – electric proportional 24 V / de-energized = min. displacement
CA – without Pressure Compensator Over Ride / without Brake Pressure Defeat
Hydraulic schematic
L2
A
B
Where:
A, B
Main pressure lines
L1, L2
Drain lines
M4, M5
Gauge port servo pressure
MA, MB
Gauge port system pressure
N Speed sensor (optional)
Displacement (%) versus Input Command (mA)
100%
80%
M2
60%
40%
20%
0%
0 200 400 600
M1, M2 = M1, M2 Control
Grey area = Intended to be used for zero degree capability.
Below are formulas to calculate start and end input command dependent on displacements:
MA N
n
min max
C1
L1
M4 M5 MB P003428
M1
800 1000 1200 1400
Options: M1CA, M2CA
Solenoid C1
De-energized = min. displacement
Full-energized = max. displacement
32°
6°
1600 1800
mA
P003 484
11037153 | BC00000043en-US1103