Bosch Rexroth A6VM series 71 Manual page 11

HP2, HP6 pilot pressure increase Δp
HP2 positive control
A pilot pressure increase of 365 psi (25 bar) at port X
results in an increase in displacement from V
HP6 negative control
A pilot pressure increase of 365 psi (25 bar) at port X
results in a decrease in displacement from V
▶ Beginning of control, setting range 75 to 725 psi (5 to
50 bar)
▶ Standard setting:
Beginning of control at 145 psi (10 bar) (end of control
at 510 psi (35 bar))
▼ Characteristic curve
HP6 HP6 HP2 HP2
0 0.2 0.4 0.6 0.8 1.0
/ V
V V V
g min g g max g max
Displacement
▼ Circuit diagram HP1, HP2 (positive control)
M
1
U T
1
T
2
G
= 365 psi (25 bar)
St
to V .
g min g max
to V .
g max g min
1000 (70)
870 (60)
725 (50)
580 (40)
510 (35)
435 (30)
290 (20)
145 (10)
75 (5)
B
V
g min
V
g max
A
X
Axial piston variable motor | A6VM series 71
HP – Proportional hydraulic control
▼ Circuit diagram HP5, HP6 (negative control)
G
U T
1
T
2
M
1
RE-A 91610/12.2015, Bosch Rexroth Corp.
X
B
V
g min
V
g max
A
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