Danfoss H1 Series

Option THHA – hydraulic two-position control with PCOR
TH – hydraulic two-position control, non-pressurized = min. displacement / external pressure supply
HA – with Pressure Compensator Over Ride, without BPD
B
A
n
N
M4 M5
L2
L1
max
min
MA
MB P005950
X1
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 THHA
Hydraulic actuator X1
Non-pressurized = min. displacement.
Full-pressurized = max. displacement.
Max. pressure for activation = 35 bar above motor case pressure
Max. pressure at non-pressurized control port X1 = case pressure
Displacement versus control signal versus PCOR pressure
P005 954
X1 = 10 bar
6°
32°
PCOR
160 bar
[2321 psi]
300 bar
[4351 psi]
1
2
3
Where:
1 Max. displacement
2 Min. displacement
3 Start setting range
W
Warning
Zero degree capability results in a high risk of overspeed and drops in efficiency if the motor operates
between 0–20% displacement.
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