Danfoss H1 Series, Technical Information

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Options D1M1, D2M2 – electric proportional control with PCOR and electric BPD
D1 – electric proportional 12 V / de-energized = max. displacement
M1 – with PCOR / with electric BPD 12 V / de-energized BPD = PCOR active at port B
D2 – electric proportional 24 V / de-energized = max. displacement
M2– with PCOR / with electric BPD 24 V / de-energized BPD = PCOR active at port B
Hydraulic schematic
B
A
n
N
M4 M5
L2
L1
max min
C1
C5
MA
MB P301 326
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)
D1M1, D2M2 option
Solenoid C1
De-energized = max. displacement
Full-energized = min. displacement
Displacement (%) versus Input Command (mA)
0 200 400 600 800 1000 1200 1400 1600 1800
mA
D2 D1
32°
6°
P301 328
0%
20%
40%
60%
80%
100%
Z
160 bar
[2321 psi]
300 bar
[4351 psi]
PCOR
D1, D2 = D1, D2 Control
Z = Start setting range
Grey area = Intended to be used for zero degree capability.
For the formulas to calculate an input command dependent on displacement, please see Options D1MA,
D2MA – electric proportional control with PCOR on page 44.
Technical Information
H1 Bent Axis Variable Displacement Motors, Size 060/080/110/160/210/250
Controls – nomenclature, description
46 | © Danfoss | December 2016 11037153 | BC00000043en-US1103