Option DHMH – hydraulic proportional control with PCOR and BPD
DH – hydraulic proportional / non-pressurized = max. displacement
MH – with Pressure Compensator Over Ride / with Brake Pressure Defeat (non-pressurized BPD =
PCOR active port not defined without pilot pressure difference on XA or XB)
Hydraulic schematic
B
A
n
N
M4
M5
L2
L1
X1
X1
MA
MB
XA
XB
P005907
max
min
Where:
A, B
Main pressure lines
L1, L2
Drain lines
M4, M5
Gauge port servo pressure
MA, MB
Gauge port system pressure
XA, XB
Control pressure ports brake pressure defeat
X1
Control pressure port
N
Speed sensor (optional)
Option DHMH
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
74 |
©
Danfoss | December 2016
11037153 | BC00000043en-US1103