Industrial
Hydraulics
Electric Drives
and Controls
Linear Motion and
Assembly Technologies
Pneumatics
Service
Automation
Mobile
Hydraulics
Control systems
HM, HS, HS4 and EO
RE 92 076/03.05
Replaces: 02.97
1/32
Technical Data Sheet
for the variable displacement pumps
A4VSO, A4VSH and A4VSG series 1 and 3
A4CSG series 3
open, semi closed and closed circuits
Contents
Ordering code /Standard program
HM1 / HM2 – hydraulic control, control volume dependent
Unit dimensions HM1 / HM2
HS – displacement control system with servo valve
Technical data HS
Schematics and components HS
Unit dimensions HS
HS4(P) – hydraulic control system with proportional valve
Technical data HS4(P)
Schematics and components HS4(P)
Unit dimensions HS4(P)
HS4M – for oil immersed (under oil level) operation
Technical data HS4M
Unit dimensions HS4M
EO1 / EO2 – hydr. control system with proportional valve
Technical data EO1
Schematics and components EO1
Unit dimensions EO1
Technical data EO2
Schematics and components EO2
Unit dimensions EO2
Version E without valve
K – short circuit valve
Z – sandwich plate filter
Safety information
Features
2
3
5
7
8
9
10
11
12
13
14
17
17
18
19
20
21
22
23
24
25
27
28
31
32
– Basic system to control the displacement of variable piston
pumps A4VSO, A4VSH, A4VSG und A4CSG
– Control with servo or proportional valve
– In conjunction with amplifier and PC-program BODAC
freeprogrammable (HS4)
– High precision control of displacement, pressure and power (HS4P)
– Mechanical limitation of Vg min and Vg max
– Electrical control system for oil immersed mounting inside
the reservoir (HS4M)
– Special version for mooring, over centre operation and
decompression by means of the pump.
Further information:
Variable pump A4VSO
Size 40...1000
RE 92050
Variable pump A4VSH
Size 40...250
RE 92110
Variable pump A4VSG
Size 40...1000
RE 92100
Variable pump A4CSG
Size 250...750
RE 92105
2/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Ordering code /Standard program
Swash plate design, variable /
pump in open circuit
A4VSO
Swash plate design, variable /
pump in semi closed circuit
A4VSH
Swash plate design, variable/
pump in closed circuit
A4VSG
Compact unit swash plate design, variable / pump in
closed circuit
A4CSG
Filtration
Valves
Through drive
Ports
Mounting flange
Shaft end
Seals
Fluid
Axial piston pump / Type of operation
–
Dir. of rotation
/
Series
A4 . . .
Detailed information in: RE 92050 – A4VSO
RE 92110 – A4VSH
RE 92100 – A4VSG
RE 92105 – A4CSG
Size
40
Displacement Vg max [cm3]
71
125 180 250 355 500 750 1000
Control device
Hydraulic control, control
volume dependent
HM
1
HM
–
–
–
HM1
HM2
min. control pressure 50/100/125 bar
Hydraulic control, with servo valve
HS
for electric control of displacement
with VT-SR7-1X
HS
for electric and electronic control of
displacement as well as
pressure and power control
with VT -VPCD-1X
–
2
min. control pressure 20 bar
Hydraulic control,
with proportional valve
–
HS*
HSE
E
HS
HSK*
K
HS4*
HS4
HS4
HS4E
E
HS4
HS4K*
K
HS4
P
HS4
K P
HS4
HS4P*
HS4KP*
HS4M*
M
for oil immersed operation
with pressure transducer HM 17
with short circuit valve
supply without valve
Hydraulic control,
with proportional valve
EO
1
EO
1
for electric control of displacement
with VT 5035-1X
EO
1
E
K
EO
2
EO
2
EO
2
–
–
–
–
–
EO1*
–
–
–
–
–
EO1E
–
–
–
–
–
EO1K*
EO2*
EO2E
E
EO2K*
K
min. control pressure 20 bar
min. control press. 50/100/125 bar
with short circuit valve
supply without valve
Filtration (only for HS)
N
Without filter
Sandwich plate filter for HS-control
–
–
–
Z
For A4VSG and A4CSG: filter mounted in boost circuit and
–
–
–
U
sandwich plate filter for HS-control
= available
= in preparation
– = not available
* Operation with HF-fluids on request
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
3/32
HM1 / HM2 – hydraulic control, control volume dependent
The HM 1/2-control adjusts the pump displacement, dependent on the control oil volume.
This control is used for 2-point control systems or as a base unit for controls wit proportional valves (in addition an electric feedback device is required).
The mechanical swivel angle limiting stop screws can be adjusted on both sidesof centre within the range of Vg max down to 50 %
Vg max , with the size 500 (HM2) from Vg max to 70% Vg max.
Spring centering of the control cylinder is standard. It is used for settings and adjustments in the unpressurized zero (centre) position, however without a defined reset during high pressure operation.
2 versions are available:
HM1 Min. control pressure 20 bar
HM2 min. control pressure 50/100/125 bar
for sizes 40, 71, 125 and 250
for sizes 40...1000 see page 4
Please note:
The Vgmin-stop for the variable displacement pump A4VSO for open circuits is to be adjusted, so that with blocked pressure port B
a minimum pressure of appox.. 20 bar is eached.
HM1
For pump A4CSG with HM1 control, the necessary control pressure can be taken out of the boost circuit (Port M E3) . Recommended setting of the boost pressure relief valve: 25 bar.
The control pressure relief valve is not needed, and is replaced by a plug.
Technical data
Size
40
Control press.(in X1, X2)
71
pmin
bar
20
pmax
bar
100
125
250
Control stroke smax
mm
14,2
17,1
20,7
25,9
Control area A
cm2
16,6
24,6
36,3
56,7
Control volume VS max
cm
23,6
42,1
75,2
147
Weight approx. (A4VSO...HM1...N00)
kg
38
55
92
194
3
Schematic size 125 and 250
Schematic size 40 and 71
Example: closed circuit A4VSG
Example: open circuit A4VSO
A
B
MB
X2
B1 B MB
U S MS
MA
X1
E
K1 K2 T R(L)
U
X1
K3 K2 T R(L)
X2
X1
Control pressure port
for pressure in B with direction of rotation clockwise, swivel range* left
for pressure in A with direction of rotation ccw., swivel range* left
X2
Control pressure port
for pressure in A with direction of rotation clockwise, swivel range* right
for pressure in B with direction of rotation ccw.., swivel range* right
Example schematic with proportional valve see page17
* compare swivel angle indicator
right
rechts
links
left
15° 0° 15°
Ports and direction of flow
4/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
HM2
Pump A4CSG with HM2-control does not need the control pressure relief valve and the cavity is plugged.
In order to minimize the control fluid consumption the control chambers on the sizes 125...1000 are sealed and can be bled
through ports R2-R7
Technical data
Size
Control pressure (in X1, X2) pmin
bar
pmax
bar
40
71
125
180
50
50
50
100
250
355
500
750
1000
100
100
125
125
125
350
Control stroke smax
mm
14,2
17,1
20,7
20,7
25,9
25,9
32,6
37,0
41,4
Control area A
cm
8,1
12,6
18,1
18,1
28,3
28,3
38,2
56,8
63,6
Control volume VS max
cm
11,4
21,5
37,5
37,5
73,2
73,2
124,5
210
263,3
38
55
92
106
194
214
327
470
600
2
3
Weight approx. (A4VSO...HM2...N00) kg
Schematic size 40 and 71
Schematic size 500...1000
Example: open circuit A4VSO
Example: closed circuit A4VSG
X2
B1 B MB
U S MS
X1
B
A
MB
MA
E
X1
MX
MX1
X2
MX2
K1 K2 T R(L)
Schematic size 125...355
Example: semi closed circuit A4VSH
B
SB SA
MB
A
U
MA
U
R5 R6 R7 K3 K2 T R(L) R4 R3 R2
X1 R5 R6 R7 K3 K2 T R(L) R4 R3 R2 X2
Ports and direction of flow
X1
Control pressure port
for pressure in B with direction of rotation clockwise, swivel range* left
for pressure in A with direction of rotation ccw., swivel range * left
X2
Control pressure port
for pressure in A with direction of rotation clockwise, swivel range* right
for pressure in B with direction of rotation ccw., swivel range* right
MX; MX1; MX2 Gauging ports control pressure (NG 500...1000)
Bleeding ports control chamber (Size 125...1000)
Example schematic with proportional valve see page 17
* compare swivel angle indicator
right
rechts
links
left
15° 0° 15°
R2-R7
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
Unit dimensions HM1 / HM2
5/32
Before finalising your design please
request certified installation drawing
Dimensions valid for A4VSO, A4VSH, A4VSG and A4CSG
Size 125...355
A5 to mounting flange surface
R(L)
A4
A2
R(L)
A4
Mounting flange
acc. to
DIN 24 340 A6
A2
Size 40 und 71
R 7/R 4
B
B
A 5 to mounting flange surface
R2
R3
X2
A1
A3
LR
15° 0 15°
Einschraubl
och M33
A3
A1
Einschraubloch M33
A3
15° 0 15°
LR
X2
X1
R(L)
R(L)
R6
X1
R5
Ports
X1; X2
R2-R7
max. tightening torque 2)
Control pressure ports
DIN 3852
Bleed port control chamber DIN 3852
M14x1,5; 12 deep
(Size 40...180)
80 Nm
M18x1,5; 12 deep
(Size 250 u. 355)
140 Nm
M10x1; 8 deep; plugged
(Size 125...355)
30 Nm
Unit dimensions
Size
A1
A2
A3
A4
A5
40
296
136
24
102
217
71
332
157
28
120
245
125
402
191
67
186,5
251
1801)
402
191
67
186,5
251
250
485
238
71
233
311
355
485
238
71
233
311
1)
) only HM2
1
Dimensions size 500...1000 see page 6
For detailed dimensions and technical data of the variable
pumps see the technical data sheets
A4VSO RE 92050, A4VSH RE 92110, A4VSG RE 92100 or
A4CSG RE 92105
) see safety information
2
6/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Unit dimensions HM2
Before finalising your design please
request certified installation drawing
Dimensions valid for A4VSO, A4VSG and A4CSG
Size 500...1000
Mounting flange
acc. to
to
mounting
flange
surface
A5
DIN 24 340 A10
MX
X1, X2
A2
A4
MX1
R 7/R 4
B
R2
MX2
A3
X2
A1
15° 0 15°
LR
R3
Einschraubloch M33
R(L)
X1
R6
MX1
R5
Ports
max. tightening torque 1)
X1; X2
MX; MX1; MX2
Control pressure port
DIN 3852
M27x2; 16 deep
330 Nm
Gauging ports control pressure
DIN 3852
M14x1,5; 12 deep; plugged
80 Nm
R2-R7
Bleed ports control chamber
DIN 3852
M14x1,5; 12 deep; plugged
80 Nm
Unit dimensions
Size
A1
A2
A3
A4
A5
500
555
283
50
274
388
750
630
320
50
304
420
1000
670
347
50
327
486
For detailed dimensions and technical data of the variable
pumps see technical data sheets
A4VSO RE 92050, A4VSG RE 92100 oder A4CSG RE 92105
) see safety information
1
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
7/32
HS – displacement control system with servo valve
for electric control of displacement with VT-SR7-1X
The HS- control adjusts the pump displacement with a servo valve proportional to a setpoint value.
The feed back of the actual pump swivel angle (pump displacement) is accomplished with a built on positional transducer. In conjunction with the compatible amplifier VT-SR7-1X we have a very accurate control of pump displacement.
This amplifier VT-SR7-1X does not belong to the supply of the HS-control. Please order separately acc. to RE 29993.
Spring centering in the control cylinder is standard. It is used for settings and adjustments in the unpressurized zero position,
however without a defined reset during high pressure operation.
Mechanical swivel angle limiting stops on both sides of centre between Vg
standard.
max
and 50 % Vg max (with size 500 to 70 % Vg max) are
In order to minimize the control fluid consumption the control chambers in the sizes 125...1000 are sealed and can be bled
through the ports R2 - R7 .
In order to protect the servo valve the pump is supplied with a sandwich flushing plate (see schematic) .
After the flushing process the flushing plate must be removed and the servo valve must be screwed directly onto the subplate
(using the screws supplied). Please observe the commissioning and flushing instructions in RE 07700 and RE 29583.
Optional:
HSE without servo valve or
HSK with short circuit valve
A4VSO - open circuit
Please note: On the A4VSO pump for open circuit applications (swivel to one side only) the Vgmin-stop is set so that, when port
B is plugged a pressure of approx. 20 bar is reached.
Characteristic
Direction of flow S to B
U
Umax
Direction of rotation
Swivel range*
clockwise
left
counter clockwise
right
Vg
Vgmax
A4VSH - semi closed circuit
Direction of flow
Characteristic
+
U
Umax
V
+ g
Vgmax
_ Vg
Vgmax
–
Direction of rotation
clockwise
counter clockwise
Swivel range*
B(S B) to A
A(SA) to B
right
A(SA) to B
B(S B) to A
left
U
Umax
A4VSG and A4CSG - semi closed circuit
On pump A4CSG with HS-control the control pressure relief valve is not needed and replaced by a plug.
Characteristic
Direction of flow
Vg
+
Vgmax
_ Vg
Vgmax
–
U
Umax
Direction of rotation
clockwise
counter clockwise
Swivel range*
B to A
A to B
right
A to B
B to A
left
*compare swivel angle indicator
right
rechts
links
left
15° 0° 15°
U
+
Umax
8/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Technical data HS
Size
Control press. in P
pmin
bar
pmax )
1
125
180
250
355
500
750
1000
100
100
100
125
125
125
150
150
150
bar
315
mm
14,2
17,1
20,7
20,7
25,9
25,9
32,6
37,0
41,4
Control area A
cm2
8,1
12,6
18,1
18,1
28,3
28,3
38,2
56,8
63,6
Control volume VS max
cm
11,4
21,5
37,5
37,5
73,2
73,2
124,5
210
263,3
Control time t
s
0,04
0,06
0,09
0,09
0,12
0,12
0,15
0,2
*
kg
42
59
98
112
200
220
333
476
606
3
)
Weight approx. (A4VSO...HS...N00)
Quality of control loop
hysteresis
≤ 0,2 %
repeating accuracy
≤ 0,2 %
swivel angle linearity
deviation
≤ 1,0 %
) conditional upon permissible data of servo valve
) at min. control pressure
* on request
2
71
Control stroke smax
2
min
1
40
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
9/32
Schematics and components HS
Schematic size 40 and 71
Schematic size 500....1000
Example: open circuit A4VSO
Example: closed circuit A4VSG
B
2
MB1
MA1
6
B1 B MB
S
RKV
MB2
6
B
T
A
P
5
P
MP
MA2
S
U
1.3
3
1.1
K1 K2 T R(L)
S MS
4.2
E
SP
P
5
RKV
2
A
U
U
3
R5 R6 R7 K3 K2 T R(L) R4 R3 R2
Schematic size 125...355
Example: semi closed circuit A4VSH
2
B
SB SA
A
MB
4.1
MA
RKV
6
SP
P
5
S
1.2
U
U
3
M1 R5 R6 R7 K1 K2 T R(L) R4 R3 R2 M2
Ports
P; SP
Control pressure ports
R KV
Return line control fluid
MA2; M B2; M P
Gauging port control pressure (plugged),
size 500...1000
M1; M2
Gauging ports control pressure (plugged),
size 125...355
R2 - R7
Bleed port control chamber (plugged),
size 125...1000
Components
1
Pump with hydraulic control device
1.1
A4VSO (see RE 92050)
1.2
A4VSH (see RE 92110)
1.3
A4VSG (see RE 92100)
2
4/3-way servovalve (see RE 29583)
3
Size
Type
40 and 71
4WS2EM10-5X/20B11ET315K31EV
125 and 180
4WS2EM10-5X/30B11ET315K31EV
250 and 355
4WS2EM10-5X/45B11ET315K31EV
500...1000
4WS2EM10-5X/75B11ET315K31EV
Inductive positional transducer IW9-03-01
with plug to DIN EN 175 301-803-A / ISO 4400
cable connection M16x1,5 cable diameter 4,5...10mm
4.1
Anti cavitation valve (A4VSH)
4.2
boost inlet check valves (A4VSG)
5
Sandwich plate
6
Flushing plate
with cable box to DIN EN 175.201-804
for cable diameter 8...13,5mm
10/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Unit dimensions HS
Before finalising your design please
request certified installation drawing
Dimensions valid for A4VSO, A4VSH, A4VSG and A4CSG
Size 40...355
A7 to mounting flange surface
A4 to mounting flange surface
6
R(L)
RKV
A 11
1
A5
A8
5
A 2 with flushing plate
A 3 without flushing plate
2
3
P
R 7/R 4
B
R2
Part view W
R3
SP
M2
R KV
W
MM66(x(x11))
M4 (x0.7)
A1
MM66((xx1)
M4 (x0.7)
15° 0 15°
Einschraubloch M33
A6
LR
A9
A 10
RKV
R(L)
M1
P
R6
P
R5
Components see page 9
Ports
max. tightening torques 2)
P; Sp
Control pressure port
DIN 3852 M22x1,5; 14 deep )
210 Nm
R KV
Return line control fluid
DIN 3852 M22x1,5; 14 deep
210 Nm
1
M1; M2 Gauging port control pressure DIN 3852 M14x1,5; 12 deep; plugged (Size 125 and 180) 80 Nm
M18x1,5; 12 tief; plugged (Size 250 and 355) 140 Nm
R2-R7
Bleed port control chamber
DIN 3852 M10x1; 8 deep; plugged
(Size 125...355)
30 Nm
Unit dimensions
Size
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
40
296
269
254
222
108
43
273
128
35
53
246
71
332
287
272
249
123
48
300
143
30
48
263
125 / 180
402
304
289
309
148
39
350
148
0
39
298
250 / 355
485
341
326
371
184
39
412
184
0
39
345
) SP plugged
1
) see safety information
2
For detailed unit dimensions and technical data on the variable pumps see technical data sheets A4VSO RE 92050,
A4VSH RE 92110, A4VSG RE 92100 or A4CSG RE 92105
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
11/32
HS4(P) – hydraulic control system with proportional valve
for electric and electronic displacement as well as pressure and power control with VT-VPCD-1X
= 100 % Actual power
Swivel angle in %
Swivel angel
actual (αact)
Desired
power
0 Operating pressure in bar
Actual pressure
The HS4-control adjusts the pump displacement with a directly controlled proportional valve proportional to a setpoint value.
Actual pump swivel angle (displacement) feedback is provided by means of a position transducer. Control HS4P features a built
on pressure transducer HM17 which serves to detect and feed back system pressure, pumps A4VSG aund A4CSG have a pressure transducer on each pressure side. In conjunction with the compatible control module VT-VPCD and the operating software
BODAC the user has at his disposal a highly accurate and free programmable control, which offers a comfortable operating and
diagnostics interface.
The digital control amplifier VT-VPCD-1X to drive the HS4-control does not belong to the scope of supply. It must be ordered
separately to RE 30028 .
Programming the digital control amplifier VT-VPCD is executed via the amplifier‘s serial interface with the PC-program BODAC.
For more information see RE 30028.
Optional:
HS4P with pressure transducer for additional pressure and power control
HS4E without proportional valve
HS4K, HS4KP with short circuit valve
HS4M for operation under oil level
Stop screws to limit the swivel angle between Vg
dard.
max
and 50 % Vg max (for size 500 to 70 % Vg max) for both side of centre are stan-
Spring centering in the control cylinder is standard. It is used for settings and adjustments in the unpressurized zero position,
however without a defined reset during high pressure operation.
In order to minimize the control fluid consumption the control chambers in pump sizes 125...1000 are sealed and can be bled via
ports R2 - R7 .
A4VSO – open circuit
When the valve is de-energized and the control pressure is on the pump swivels towards Vg min.
The Vg min-stop set so that, when port B is plugged, a pressure of approx. 20 bar is reached.
A4VSH, A4VSG, A4CSG – closed and semi closed circuit
For controls of these pumps without short circuit valve it must be noted, that, when the valve is de-energized and the control
pressure is on the pump will stroke towards Vg max (swivel angle range to the right).
On pumps A4CSG with HS4-control the control pressure relief valve is not needed and replaced by a plug.
12/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Technical data HS4(P)
Size
Control press. in P
pmin
bar
pmax )
1
125
180
250
355
500
750
1000
100
100
100
125
125
125
150
150
150
bar
315
mm
14,2
17,1
20,7
20,7
25,9
25,9
32,6
37,0
41,4
Control area A
cm2
8,1
12,6
19,0
19,0
28,3
28,3
38,2
56,8
63,6
Control volume VS max
cm
11,4
21,5
37,5
37,5
73,2
73,2
124,5
210
263,3
Control time t
s
0,04
0,06
0,09
0,09
0,12
0,12
0,15
0,2
0,25
kg
42
59
98
112
200
220
333
476
606
3
)
Weight approx. (A4VSO...HS4...N00)
Quality of control
loop
hysteresis
≤ 0,2 %
repeating accuracy
≤ 0,2 %
swivel angle linearity
deviation
≤ 1,0 %
pressure linearity deviation
) limited by the permissible proportional valve data
) at min. control pressure
3
) Pressure transducer value
2
71
Control stroke smax
2
min
1
40
≤ 1,5 % of pmax3)
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
13/32
Schematics and components HS4(P)
Schematics size 125...355
On sizes 40 and 71 the ports M1, M2 and R2-R7 are deleted
Example: A4VSO HS4P (with pressure transducer)
Direction of rotation clockwise
Direction of rotation counter clockwise
P
T
P
T
a
b
b
(6)
I
B1 B MB
P
a
A
B
a
b
b
A
a
2
SP
P
5
RKV
B
S
1.1
(6)
I
U
B1 B MB
P
RKV
2
5
SP
P
1.1
3
U S MS M1 R5 R6 R7 K1 K2 T R(L) R4 R3 R2 M2
Schematic size 500...1000
Example: A4VSG HS4 (without pressure transducer)
B
A
P
T
MA1
4
a
bb
b
B
A
RKV
MB2
E
a
2
5
MP
P
MA2
Ports
1.2
S
U
3
P; SP
Control pressure port
R KV
Return line control fluid
M1; M2
Gauging ports
control pressure(Size 125...355)
U
R5 R6 R7 K3 K2 T R(L) R4 R3 R2
MA2; M B2; M P
Gauging ports
control pressure (Size 500...1000)
R2 - R7
Bleed port control chamber
Size 125...1000
Components
1
Pump with hydraulic control device
1.1
A4VSO (see RE 92050)
1.2
A4VSG (see RE 92100)
2
4/3-proportional valve (see RE 29061) with electric positional feedback (incl. cable connector 4-pin Pg7-G4W1F)
Size
Type
40...180
4WRE6V08-2X/G24K4/V-822
250...1000
4WRE6V16-2X/G24K4/V-822
U
3
U S MS M1 R5R6 R7 K1 K2 T R(L) R4 R3 R2 M2
MB1
S
solenoids with plugs to DIN EN 175.301-803 / ISO 4400
cable screw joint M16x1,5 for cable diameter 4,5...10mm
3
Inductive positional transducer AWXF004D01 with plug in connector 4-pin Pg7-G4W1F
4
Boost inlet check valves (A4VSG)
5
Sandwich plate
6
only on HS4P pressure transducer HM17-1X/450-C/VO/O (see RE 30269) with adaptor flange,
on A4VSG and A4CSG each pressure side has a built on pressure transducer
14/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Unit dimensions HS4(P)
Before finalising your design please
request certified installation drawing
On A4VSO for direction of rotation clockwise and ccw. some dimensions are different.
For A4VSH, A4VSG and A4CSG the dimensions under„right“ are valid for both directions of rotation
Sizes 40 and 71 Example A4VSO HS4P with a pressure transducer in port B
A 7 to mounting flange surface
A 4 to mounting flange surface
2
3
P
(SP)
5
RKV
1
A8
--
A5
with press. transducer item 6:
Adapter flange with 30 mm through
holes for fixing screws
(For thread of fixing screws see relevant
data sheets of pumps)
A3
--a
40
Transport protection
M12 (x1.75)
Part view W
B
(6)
Schl.weite: 13 mm
Schl.weite: 36 mm
A2
--
SP
LR
15° 0 15°
W
Einschraubloch M33
A6
A1
A9
A 10
RKV
Valve position on A4VSH,
A4VSG, A4CSG and
A4VSO direction of rotation
clockwise
M5 (x0.8)
R(L)
30
A2
P
Valve position on
A4VSO direction of rotation
counter clockwise
Schl.weite: 36 mm
Components see page 13
Ports
max. tightening torque 2)
P; Sp
Control pressure ports
DIN 3852
M22x1,5; 14 deep 1)
210 Nm
R KV
Return line control fluid
DIN 3852
M22x1,5; 14 deep
210 Nm
Unit dimensions
Size
A1
A2 left
A2 right A3
A6
A7 right A7 left
A8 right A8 left
A9 right A9 left
A10
40
296
166
174
226
245
222
229,5 108
43
273
253
128
94
35
5
54
71
332
171
169
241
261
249
256,5 123
48
300
280
143
109
30
0
49
left
A3 right A4 right A4 left
Dimensions size 125...1000 see page 15 and 16
A5
) SP plugged
1
) see safety instructions
2
For detailed unit dimensions and technical data of the variable pumps see technical data sheets of A4VSO RE 92050, A4VSH
RE 92110, A4VSG RE 92100 oder A4CSG RE 92105
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
Unit dimensions HS4(P)
15/32
Before finalising your design please
request certified installation drawing
With A4VSO the dimension A4 is different for clockwise and counter clockwise direction of rotation.
With A4VSH, A4VSG and A4CSG the dimension A4 right is valid for both directions of rotation.
Size 125...355 Example A4VSG HS4P with a pressure transducer in each of the ports A and B
A 7 to mounting flange surface
A 4 to mounting flange surface
3
2
5
RKV
--a
40
--
1
--
A3
with pressure transducer item 6:
Adapter flange with 30 mm through
holes for fixing screws
(For thread of fixing screws see the
relevant data sheet of the pump)
Einschraubloch M22
P
A8
B
R 7/R 4
A5
M10 (x1.5)
Transport protection
M14 (x2)
(6)
Part view W
A
SP
R3
Schl.weite: 13 mm
Valve position on A4VSH,
A4VSG, A4CSG and
A4VSO direction of rotation
clockwise
15° 0 15°
E i ns c h r a u b l o c h M 2
2
A6
LR
A1
A6
RKV
M2
R2
W
f
Einschraubloch M3
3
R(L)
30
P
R6
M1
R5
Components see page 13
Ports
Valve position on
A4VSO direction of rotation
counter clockwise
max. tightening torque 2)
P; Sp
Control pressure ports
DIN 3852
M22x1,5; 14 deep 1)
210 Nm
R KV
Return line control fluid
DIN 3852
M22x1,5; 14 deep
210 Nm
M1; M2
Gauging ports control pres- DIN 3852
sure
M14x1,5; 12 deep; plugged
(Size 125 a. 180) 80 Nm
M18x1,5; 12 tief; verschlossen (Size 250 a. 355) 140 Nm
R2-R7
Bleed port control chamber
M10x1; 8 deep; plugged
DIN 3852
30 Nm
Unit dimensions
Size
A1
A3
A4 right
A4 left
A5
A6
A7
A8
125 / 180
402
280
310
318,5
156
39
350
148
250 / 355
485
316
372
380,5
192
39
412
184
Dimensions sizes 40 and 71 see page 14
) SP plugged
1
) see safety information
2
For detailed unit dimensions and technical data of the variable pumps see the technical data sheets of the pumps
A4VSO RE 92050, A4VSH RE 92110, A4VSG RE 92100 oder A4CSG RE 92105
16/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Unit dimensions HS4(P)
Before finalising your design please
request certified installation drawing
Dimensions valid for A4VSO, A4VSG and A4CSG
Size 500...1000 Example HS4P with a pressure transducer in port B
3
MP MB2
5
with pressure transducer item 6:
Adapter flange with 30 mm through
holes for fixing screws
(For thread of fixing screws see relevant
data sheet of the pump)
A2
02437369
1
A4
2
R7/R 4
Transport protection
M12 (x1.75)
B
(6)
A 5 to mounting flange surface
MA
R3 R2
02437369
Valve position on A4VSG,
A4CSG and A4VSO direction of
rotation clockwise
A6
15° 0 15°
02422845
Einschraubloch M33
02437369
LR
A1
00988104
Rkv
R(L)
30
P
R6
R5
Valve position on A4VSO
direction of rotation ccw.
A 3 to mounting flange surface
Conponents see page 13
Ports
max. tightening torque 1)
P
R KV
Control pressure port
DIN 3852
M27x2; 16 deep
330 Nm
Return line control fluid
DIN 3852
M27x2; 16 deep
330 Nm
MA2; M B2; M P
Gauging ports control pressure
DIN 3852
M14x1,5; 12 deep; plugged
80 Nm
R2 - R7
Bleed port control chamber
DIN 3852
M14x1,5; 12 deep; plugged
80 Nm
Unit dimensions
Size
A1
A2
A3
A4
A5
A6
500
555
361
392
274
388
50
750
630
400
424
304
420
50
1000
670
427
490
327
486
50
Dimensions size 40...355 see page 14 and 15
For detailed unit dimensions and technical data of the variable
pumps see the technical data sheets of
A4VSO RE 92050, A4VSG RE 92100 oder A4CSG RE 92105
) see safety information
1
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
17/32
HS4M – for oil immersed (under oil level) operation
Control option HS4M corresponds to the HS4 version however without proportional valve, but with control pressure ports X1 and
X2.
The proportional valve can be mounted separately into the system and be connected to the relevant ports X1 and X2 of the pump.
The pump unit together with the attached positional transducer can be mounted inside the reservoir.
Recommended:
proportional valve 4WRE6-2X see RE 29061
electronic control VT-VPCD-1X see RE 30028
cable see RE 30028-B
Please note:
On the A4VSO pumps for open circuit applications (swivel to one side only) the Vgmin-stop is set so that, when port B is plugged,
a pressure of approx. 20 bar is reached.
On A4CSG with HS4M the control pressure relief valve is not needed and replaced by a plug.
Schematic example open circuit
A4VSO size 125...500
Direction of rotation clockwise
a
b
b
B1 B MB
is not part of the supply of the
HS4M
P
T
B
Direction of rotation counter clockwise
X1
b
X2
B
a
A
X1
B1 B MB
S
a
b
a
A
P
T
X2
S
U
U S MS R5 R6 R7 K1 K2 T R(L) R4 R3R2
U
U S MS R5 R6 R7 K1 K2 T R(L) R4 R3R2
Induktiv positional transducer AWXF004D01
with 4-pin plug in connector Pg7-G4W1F
Ports and direction of flow
Control pressure port
for pressure in B with direction of rotation clockwise, swivel range* left
for pressure in A with direction of rotation ccw., swivel range left* links
X2
Control pressure port
for pressure in A with direction of rotation clockwise, swivel range* right
for pressure in B with direction of rotation ccw., swivel range* right
R2-R7
Bleed port control chamber (Size 125...1000)
* compare swivel angle indicator
right
rechts
links
left
15° 0° 15°
X1
Technical data HS4M
Size
Control pressure (in X1, X2) pmin
bar
pmax
bar
40
71
125
180
250
355
500
750
1000
50
50
50
100
100
100
125
125
125
350
Control stroke smax
mm
14,2
17,1
20,7
20,7
25,9
25,9
32,6
37,0
41,4
Control area A
cm
8,1
12,6
18,1
18,1
28,3
28,3
38,2
56,8
63,6
Control volume VS max
cm
11,4
21,5
37,5
37,5
73,2
73,2
124,5
210
263,3
38
55
92
106
194
214
327
470
600
2
Weight approx. (A4VSO...HS4M..N00)kg
3
18/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Unit dimensions HS4M
Before finalising your design please
request certified installation drawing
Dimensions valid for A4VSO, A4VSH, A4VSG and A4CSG
A4
A2
A4
Sizes 125...355
A2
Sizes 40, 71 and 500
B
B
A 5 to mounting flange surface
A 5 to mounting flange surface
X2
Inductive
positional transducer size 40
A1
A3
Einschraubloch M33
A3
15° 0 15°
33
LR
A1
E ins c h r a u b l o c h M
A3
15° 0 15°
LR
X2
X1
R(L)
R(L)
X1
Ports
X1; X2
max. tightening torque 2)
Control pressure ports
DIN 3852
M14x1,5; 12 deep (Size 40...180)
80 Nm
M18x1,5; 12 deep (Size 250 a. 355)
140 Nm
M22x1,5; 14 deep (Size 500)
210 Nm
Unit dimensions
Size
A1
A2
A3
A4
A5
40
296
221,5
24
102
217
71
332
243
28
120
245
125/180
402
273
67
186,5
251
250/355
485
309
71
233
311
500
555
361
224
205
399
Sizes 750 and 1000 on request
For detailed unit dimensions and technical data of the variable
pumps see the technical data sheets of A4VSO RE 92050,
A4VSH RE 92110, A4VSG RE 92100 or A4CSG RE 92105
) see safety information
2
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
19/32
EO1 / EO2 – hydraulic control system with proportional valve
for electric control of displacement with VT 5035-1X
The EO1/2 control adjusts the pump displacement proportional to a command input value, by means of a built on directly driven
proportional directional valve.
The feedback signal for the actual pump swivel angle (displacement ) is provided by a positional transducer.
The max. swivel angle can be adjusted on both sides of centre with stop screws between Vg
500 (EO2) from Vg max to 70 % Vg max.
max
and 50 % Vg max for the pump size
Spring centering of the control cylinder is standard. It is used for settings and adjustments in the unpressurized zero position, however without a defined reset during high pressure operation.
The electric amplifier VT 5035-1X to control the pump displacement does not belong to the supply of the EO , it must be ordered separately acc. to RE 29955 .
2 versions are available:
EO1 min. control pressure 20 bar for pump sizes 40...250 see page 20...22
EO2 min. control pressure 50/100/125 bar for pump sizes 40...1000 see page 23...26
A4VSO - open circuit
Please note: On the A4VSO pump for open circuit applications (swivel to one side only) the Vgmin-stop is set so that, when port B
is plugged a pressure of approx. 20 bar is reached.
Characteristic
Direction of flow S to B
U
Umax
Direction of rot.
Swivel range* / or solenoid energized
Clockwise
left / a
Counterclockwise
right / b
Vg
Vgmax
A4VSH - semi closed circuit
Direction of flow
Characteristic
U
+
Umax
_ Vg
Vgmax
+
–
Vg
Vgmax
Swivel range* /
or solenoid energized
Direction of rot.
clockwise
c. clockwise
right / b
B(S B) to A
A(SA) to B
left / a
A(SA) to B
B(S B) to A
Swivel range* /
or solenoid energized
Direction of rot.
clockwise
c. clockwise
right / b
B to A
A to B
left / a
A to B
B to A
U
Umax
A4VSG and A4CSG - closed circuit
Characteristic
Vg
+
Vgmax
_ Vg
Vgmax
U
–
Umax
* compare swivel angle indicator
right
rechts
links
left
15° 0° 15°
Direction of flow
U
+
Umax
20/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Technical data EO1
Size
40
Control pressure in P
bar
20
pmax
bar
100
250
Control stroke smax
mm
14,2
17,1
20,7
25,9
Control area A
cm2
16,6
24,6
36,3
56,7
Control volume VS max
cm
23,6
42,1
75,2
147
Control time t
s
0,12
0,20
0,22
0,40
kg
42
98
200
)
Weight approx. (A4VSO...EO1..N00)
3
59
max. hysteresis ∆ Vg 2)
≤ ±
min. repeating accuracy 2)
≤ ± 1,5 % von Vg max
Linearity deviation )
≤
2
) at 50 bar control pressure
) Values valid for constant operating temperatue of 50 °C
2
125
pmin
1
min
1
71
2 % von Vg max
2,5 % von Vg max
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
21/32
Schematics and components EO1
The control fluid, externally supplied through port P leaves the pump through the case drain ports R(L) .
For pump type A4CSG with EO1- control, the control is fed from the boost circuit (port M E3) , that means port P is piped already .
Recommended setting of boost pressure relief valve: 25 bar.
Schematic sizes 40 and 71
Schematic sizes 125 and 250
Example: closed circuit A4VSG
4
B
Example: open circuit A4VSO
A
MB
MA
2
B1 B M B
s
K2 K3 T R(L)
SP
P
5
RKV
s
U
1.2
3
1.1
U
2
a
b
E
a
b
P
U S MS M1
3
K1 K2 T R(L)
M2
Ports
P; SP
Control pressure porte (SP only on sizes 125 and 250)
R KV
Return line control fluid (sizes 125 and 250)
M1; M2
Gauging ports control pressure (sizes 125 and 250)
Components
1
Pump with hydraulic control device
1.1
A4VSG (see RE 92100)
1.2
A4VSO (see RE 92050)
2
4/3-way proportional valve
Size
Type
40 and 71
4WRA6V15-2X/G24N9Z4/V-589
125 u. 250
with plug in connector to DIN EN 175 301-803 / ISO 4400
4WRA6V30-2X/G24N9Z4/V-589 Cable joint M16x1,5 for cable diameter 4,5..10mm
3
Induktiv positional transducer IW9-03-01
with plug in connector to DIN EN 175 301-803-A / ISO 4400
cable joint M16x1,5 for cable diameter 4,5...10mm
4
Boost inlet check valves (A4VSG)
5
Throttle plate
U
22/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Unit dimensions EO1
Befor finalising your design please
request certified installation drawing
Dimensions valid for A4VSO, A4VSH, A4VSG and A4CSG
Sizes 40 and 71
Sizes 125 and 250
A 4 to mounting flange surface
3
3
2
R(L)
P
R KV
1.1
A2
A7
A5
5
A5
2
A2
1.1
P(SP)
A3 to mounting flange surface
A4 to mounting flange surface
R 7/R 4
B
B
R2
R3
M2
SP
M1
P
R KV
A1
A6
Einschraubloch M33
A6
Einschraubloch M33
15° 0 15°
LR
A1
LR
15° 0 15°
P
R(L)
R(L)
R6
R5
A8 to mounting flange surface
Components see page 21
Ports
max. tightening torques 2)
P
Control pressure port
DIN 3852 M14x1,5; 12 deep
M22x1,5; 14 deep
(Size 40 and 71)
80 Nm
(Size 125 and 250) 210 Nm
SP
Control pressure port
DIN 3852 M22x1,5; 14 deep 1)
(Size 125 and 250) 210 Nm
R KV
Return line control fluid
DIN 3852 M22x1,5; 14 deep 1)
(Size 125 and 250) 210 Nm
M1; M2
Gauging ports control press. DIN 3852 M18x1,5; 12 deep )
(Size125 and 250)
140 Nm
R2-R7
Bleed port control chamber
(Size 125...355)
10 Nm
1
DIN 3852 M10x1; 8 deep; plugged
Unit dimensions
Size
A1
A2
A3
A4
A5
A6
A7
A8
40
296
246
279
178
135
–
–
–
71
332
265
306
205
152
–
–
–
125
402
298
–
312
156
39
148
352
250
485
345
–
372
192
39
184
412
) plugged
1
For detailed unit dimensions and technical
data of the variable pumps see the technical data sheets for the A4VSO RE 92050,
A4VSH RE 92110, A4VSG RE 92100 or
A4CSG RE 92105
) see safety information
2
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
23/32
Technical data EO2
Size
Control press. in P
pmin
bar
pmax )
1
40
71
125
180
250
355
500
750
1000
50
50
50
100
100
100
125
125
125
bar
315
Control stroke smax
mm
14,2
17,1
20,7
20,7
25,9
25,9
32,6
37,0
41,4
Control area A
cm2
8,1
12,6
18,1
18,1
28,3
28,3
38,2
56,8
63,6
Control volume VS max
cm
11,4
21,5
37,5
37,5
73,2
73,2
124,5
210
263,3
Control time t
s
0,1
0,12
0,2
0,2
0,25
0,25
0,3
*
*
42
59
98
112
200
220
338
481
611
)
2
min
3
Weight approx. (A4VSO..EO2..N00) kg
max. hysteresis ∆ Vg 3)
≤ ±
min. repeating accuracy 3)
≤ ± 1,5 % von Vg max
Linearity deviation )
≤
3
) limited by permissible data of proportional valve
) at minimum control pressure
3
) Values are valid for constant operating temperature of 50 °C
* on request
1
2
2 % von Vg max
2,5 % von Vg max
24/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Schematics and components EO2
The control fluid, externally supplied through port P leaves the housing through the case drain ports R(L) on pumps up to incl.
size 355 . As of the size 500 the port R KV must be connected to tank to drain this control fluid.
On pump type A4CSG with EO2-control the control pressure relief valve is not needed and replaced by a plug.
In order to minimize the control fluid consumption the control chambers on the sizes 125...1000 are sealed and can be bled via
ports R2 - R7 .
Schematic sizes 40 and 71
Schematic sizes 500...1000
Example: open circuit A4VSO
Example: closed circuit A4VSG
b
a
2
2
B
B1 B M B
SP
P
5
RKV
S
MB1
5
1.2
U
a
b
5
R5 R6 R7 K2 K3 T R(L) R4 R3 R2
Ports
U
3
P; SP
Control pressure ports
R KV
Return line control fluid
M1; M2
Gauging ports control press. (Size 125...355)
MA2; M B2; M P; MA3; M B3 Gauging ports control press. (Size 500...1000)
U S MS M1R5R6R7 K1 K2 T R(L) R4R3R2 M2
R2-R7
Bleed port control chamber (Size 125...1000)
Components
Pump with hydraulic control device
A4VSO (see RE 92050)
1.2
A4VSG (see RE 92100)
2
4/3-way proportional valve
3
SP
P
1.1
1.1
U
2
S
1
MP
P
MA2
S
Example: open circuit A4VSO
RKV
6
MA3
3
Schematic sizes 125...355
B1 B M B
a
A
RKV
MB2
K1 K2 T R(L)
U S MS
b
MA1
MB3
E
U
1.1
4
Size
Type
40 and71
4WRA6V15-2X/G24N9Z4/V-589
125...355
4WRA6V30-2X/G24N9Z4/V-589
500...1000
4WRE10E25-2X/24Z4/V-93
with plug in connector to DIN EN 175 301-803 / ISO 4400
cable joint M16x1,5 for cable diameter 4,5..10mm
3
Induktiv positional transducer IW9-03-01
with plug in connector DIN EN 175 301-803 / ISO 4400
cable joint M16x1,5 for cable diameter 4,5...10mm
4
Boost inlet check valves (A4VSG)
5
Sandwich plate
6
Throttle plate (Size 500...1000)
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
Unit dimensions EO2
25/32
Before finalising your design please
request certified installation drawing
Dimensions valid for A4VSO, A4VSH, A4VSG and A4CSG
Sizes 40...355
A7 to mounting flange surface
A4 to mounting flange surface
2
3
1.1
A5
5
A8
A2
A3
R KV
P
B
R 7/R 4
Part view W
R2
R3
M2
SP
A9
15° 0 15°
A9
A6
R(L)
P
R6
M1
R5
P
Components see page 24
Ports
max. tightening torque 2)
P; SP
Control pressure ports
DIN 3852 M22x1,5; 14 deep; SP plugged
R KV
Return line control fluid
DIN 3852 M22x1,5; 14 deep; plugged
M1; M2 Gauging ports control
pressure
R2-R7
W
A6
LR
Einschraubloch M33
A1
RKV
A 10
RKV
210 Nm
210 Nm
DIN 3852 M14x1,5; 12 deep; plugged
M18x1,5; 12 deep; plugged
Bleed port control chamber DIN 3852 M10x1; 8 deep; plugged
(Size 125 a. 180)
(Size 250 a. 355)
80 Nm
140 Nm
(Size 125...355)
10 Nm
Unit dimensions
Size
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
40
296
248
246
222
108
43
273
128
35
53
71
332
264
265
249
123
48
300
143
30
48
125/180 402
281
298
310
156
39
350
148
0
39
250/355 485
317
345
372
192
39
412
184
0
39
Dimensions size 500...1000 see page 26
For detailed dimensions and technical data
of the variable pumps see the technical data
sheets for the A4VSO RE 92050, A4VSH
RE 92110, A4VSG RE 92100 or A4CSG
RE 92105
) see safety information
2
26/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Unit dimensions EO2
Before finalising your design please
request certified installation drawing
Dimensions valid for A4VSO, A4VSG and A4CSG
Sizes 500...1000
A 2 to mounting flange surface
P, RKV
3
6
5
2
A4
A3
MP
1
R7/R 4
B
A 5 to mounting flange surface
R3 R2
MA2
MA3
Einschraubloch M33
A1
A6
15° 0 15°
LR
RKV
P
R(L)
R6
R5
MB3
MB2
Components see page 24
Ports
max. tightening torques 2)
P
Control pressure ports
DIN 3852
M27x2; 16 deep
330 Nm
R KV
Return line control fluid
DIN 3852
M27x2; 16 deep
330 Nm
M P; MA2; M B2
Gauging ports control pressure DIN 3852
M14x1,5; 12 deep; plugged 80 Nm
MA3; M B3
Gauging ports control pressure DIN 3852
G 1/4; plugged
R2– R7
Bleed port control chamber
M14x1,5; 12 deep; plugged 80 Nm
DIN 3852
70 Nm
Unit dimensions
Size
A1
A2
A3
A4
A5
A6
500
555
559
392
274
388
50
750
630
591
427
304
420
50
1000
670
657
456
327
486
50
Dimensions size 40...355 see page 25
For detailed unit dimensions and technical data of the variable pumps
see the technical data sheets for the A4VSO RE 92050,
A4VSG RE 92100 or A4CSG RE 92105
) see safety information
2
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
27/32
Version E without valve
This version is being supplied without the control valve.
Apart from that, this version corresponds to the respective basic execution – technical data, respective schematics and unit
dimensions see basic control version.
HSE
HS4E / EO1E / EO2E
Execution witout servo valve
Execution without proportional valve
The mounting pad for the servo valve corresponds to porting
pattern DIN 24340-A10 .
For pump sizes 40 up to incl. 355 the mounting pad on the
EO1E and EO2E corresponds to DIN 24340-A6 and for the
sizes 500...1000 to DIN 24340-A10 .
Schematic
For the HS4E-control the porting pattern corresponds to
Example size 125...355
DIN 24340-A6 on all sizes.
6
B1 B MB
RKV
SP
P
5
S
1
U S MS R4 R3 R2 K1 K2 T R(L) R5 R6 R7
Components
1
Pump with hydraulic control device
3
Induktiv positional transducer
Type IW9-03-01 (EO1/2E, HSE)
Type AWXF (HS4E)
5
Sandwich plate
6
Flushing plate (only HSE)
U
3
28/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
K – short circuit valve
Before finalising your design please
request certified installation drawing
HSK
A solenoid actuated 4/2-way shut-off valve is mounted between the servo valve and the control device.
This short circuit arrangement is used for settings and adjustments in the unpressurized zero position, however without a defined
reset during high pressure operation – it is not an emergency shut-down function.
Short circuit valve (4/2-way shut off valve) Type Z4WEH10E68-4X/6EG24N9ETZ4/B10D3 (see RE 24753)
with plug in connector DIN EN 175301-803-A
cable joint M16x1,5 for cable diameter 4,5...10 mm
Schematic
Unit dimensions
Example: A4VSO size 125...355
on sizes 40 and 71 ports R2–R7 deleted
Sizes 40...355
A 4 to mounting flange surface
B1 B MB
RKV
R KV
SP
P
S
U
P
A 2 with flushing plate
A 3 without flushing plate
R(L)
a
50
b
B
U S MS M1R5R6R7 K1 K2 T R(L) R4R3R2 M2
Unit dimensions
HS4K / EO1K / EO2K size 40...355 see page 29
EO2K size 500...1000 see page 30
Size
40
71
125
180
250
355
A2
318
336
355
355
390
390
A3
303
321
340
340
375
375
A4
403
430
479
479
541
541
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
K – short circuit valve
29/32
Before finalising your design please
request certified installation drawing
HS4K / EO1K / EO2K Sizes 40...355
A solenoid actuated 4/2-way shut off valve is mounted between the proportional valve and the control device.
This short circuit arrangement is used for settings and adjustments in the unpressurized zero position, however without a defined
reset during high pressure operation – this is not an emergency shut-down function.
Unit dimensions
Short circuit valve (4/2-way shut off valve)
Type Z4WE6E68-3X/EG24N9Z4/V (see RE 23193)
HS4K Sizes 40...355
with plug in connector DIN EN 175 301-803-A
cable joint M16x1,5
for cable diameter 4,5...10 mm
A3
to mounting flange surface
Please observe performance limits to RE 23193 .
50
--a
40
A2
--a
40
--
P
M 1 2 ( x 1 .7 5 )
B
Schematic
Example A4VSO EO2K sizes 125...355
EO1K sizes 40 and 71
A4
to mounting flange surface
a
b
P
B1 B M B
SP
P
RKV
R(L)
S
U
50
EO1K sizes 125 und 250
EO2K sizes 40...355
U S MS M1R5R6R7 K1 K2 T R(L) R4R3R2 M2
A7
to mounting flange surface
A3
A4
A5
A6
A7
295
296
324
298
246
295
71
311
323
351
314
265
322
125
330
381
–
331
298
379
180
330
381
–
331
298
379
250
365,5
443
–
365
345
443
355
365,5
443
–
365
345
443
EO2K sizes 500...1000 see page 30
A5
A2
40
A6
Size
50
Unit dimensions
P
B
30/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
K – short circuit valve
Before finalising your design please
request certified installation drawing
EO2K sizes 500...1000
A solenoid actuated 4/2-way shut off valve is mounted between the proportional valve and the control device.
This short circuit arrangement is used for settings and adjustments in the unpressurized zero position, however without a defined
reset during high pressure operation – this is not an emergency shut-down function.
Schematic
Unit dimensions
Example: A4VSG
50
b
b
P
a
A
MA1
MB3
RKV
MB2
E
A2
MB1
A3
B
a
MA3
MP
P
MA2
S
U
B
A 4 to mounting flange surface
U
R5 R6 R7 K2 K3 T R(L) R4 R3 R2
Short circuit valve (4/2-way shut off valve)
Type Z4WEH10E68-4X/6EG24N9ETZ4/B10D3
(see RE 24753)
with plug in connector DIN EN 175301-803-A
cable joint M16x1,5
for cable diameter 4,5...10 mm
EO2K sizes 40...355 see page 29
Unit dimensions
Size
500
750
1000
A2
386
417
439
A3
392
427
456
A4
609
641
707
RE 92 076/03.05 | HM, HS, HS4 and EO
Industrial Hydraulics | Bosch Rexroth AG
Z – sandwich plate filter
31/32
Before finalising your design please
request certified installation drawing
the digit for the filtration option in the model code
This sandwich plate filter is used to filter the control fluid before entering the servo valve in the HS-control.
It is denoted with the letter Z in the pump model code.
Sandwich plate filter
Unit dimensions HS...Z
Contamination indicator is optical and electrical–
indicator lamp voltage 24V
Sizes 40...355
Size
Type
40 and 71
DFBH/HC60Z10D2.0/V-L24
125...355
DFBH/HC110Z10D2.0/V-L24
Schematic
RKV
P
�
B1 B MB
�
�
�
�
B
��
�
RKV
A 2 with flushing plate
A 3 without flushing plate
HS4 with sandwich plate filter on request.
�
A1
�
U S �� ��R5R6 R7 K1 K2 T R(L) R4 R3R2 ��
R(L)
Unit dimensions
Size
A1
A2
A3
A4
40
216
342
327
300
71
212
350
335
312
125/180
272
374
359
376
250/355
272
411
396
438
A 4 to mounting flange surface
32/32
Bosch Rexroth AG | Industrial Hydraulics
HM, HS, HS4 and EO | RE 92 076/03.05
Safety information
-
The control and regulating devices HM, HS, HS4 and EO were designed for the respective pumps as follows: open
circuit(A4VSO), semi closed circuit (A4VSH) or closed circuit (A4VSG, A4CSG) .
Systems design, installation and commissioning requires trained technicians or tradesmen.
-
All hydraulic ports can only be used for the fastening of hydraulic service lines.
-
Tightening torques:
All tightening torques, given in this data sheet are maximum values and may not be exceeded
(maximum values for the female threads in the castings).
Please comply with the manufacturer‘s information regarding the maximum permissible tightening torques for the used fittings!
For fastening screws to DIN 13 we recommend to check the permissible tightening torques in each individual case acc. to
VDI 2230 dated 2003.
-
During and shortly after operation the valve and the solenoids are extremely hot! Wear always suitable protective clothing!
Bosch Rexroth AG
Mobile Hydraulics
Product Segment Axial Piston Units
Plant Horb
An den Kelterwiesen 14
72160 Horb a.N., Germany
Telefon +49 (0) 74 51 - 92 0
Telefax
+49 (0) 74 51 - 82 21
info.brm-ak@boschrexroth.de
www.boschrexroth.com
© This document, as well as the data, specifications and other informations set
forth in it, are the exclusive property of Bosch Rexroth AG. Without their consent
it may not be reproduced or given to third parties.
The data specified above only serve to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived
from our information. The given information does not release the user from the
obligation of own judgement and verification. It must be remembered that our
products are subject to a natural process of wear and aging.
Subject to change.