Danfoss H1 Series

Option DHMA – hydraulic proportional control with PCOR
DH – hydraulic proportional / non-pressurized = max. displacement
MA – with Pressure Compensator Over Ride / without Brake Pressure Defeat
Hydraulic schematic
B
A
n
N
M4 M5
L2
L1
X1
X1
MA
MB
P005906
max
min
Where:
A, B Main pressure lines
L1, L2 Drain lines
M4, M5 Gauge port servo pressure
MA, MB Gauge port system pressure
X1 Control pressure port
N Speed sensor (optional)
Option DHMA
Hydraulic actuator X1
Non-pressurized = max. displacement.
Full-pressurized = min. displacement.
Displacement (%) versus Input Command (bar)
DH
DH
P005 904
0%
20%
40%
60%
80%
100%
32°
6°
1
2
bar
160 bar
[2321 psi]
300 bar
[4351 psi]
PCOR
4
3
1 = Control ramp, 100% - 20% (14 bar [203 psi])
2 = Control ramp, 100% - 0% (17.5 bar [254 psi])
3 = Control start setting range
4 = PCOR start setting range
Grey area = Intended to be used for zero degree capability.
Technical Information
H1 Bent Axis Variable Displacement Motors, Size 060/080/110/160/210/250
Controls – nomenclature, description
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Danfoss | December 2016 11037153 | BC00000043en-US1103