Controllers DR, DP, FR and DFR

Controllers
DR, DP, FR and DFR
RE 92060
Edition: 04.2014
Replaces: 10.2006
▶▶ For variable pump A4VSO series 1 and 3
▶▶ Open circuit
Features
Contents
▶▶ Control of pressure and flow
Ordering code – A4VSO
2
▶▶ Remote controlled optional
DR − pressure controller
3
▶▶ Pressure controller for parallel operation optional
DRG − remote controlled pressure controller
6
▶▶ Mechanical Vg min − and Vg max −limitation
DP − pressure controller for parallel operation
11
▶▶ The special version enables mooring, swivel-through
DPF − with flow controller
16
FR/FR1 − flow controller
19
operation, and decompression over the pump
FRG/FRG1 − flow controller with remote
Variable pump A4VSO, data sheet 92050
controlled pressure control
22
DFR/DFR1 − pressure-flow controller
25
General instructions
28
RE 92060/04.2014, Bosch Rexroth AG
DR, DP, FR and DFR | Controllers
Ordering code – A4VSO
2
Ordering code – A4VSO
01
02
03
04
A4VS
05
O
06
07
08
09
/
10
11
12
13
–
Hydraulic fluid
01 For details see data sheet 92050
Axial piston unit
A4VS
02 Swashplate design, variable
Charge pump (impeller)
03 without charge pump (no symbol)
with charge pump (impeller)
only with port plate 25 (service line ports)
●
●
●
●
●
●
●
●
●
‒
‒
‒
‒
‒
‒
‒
●
‒
L
Operating mode
O
04 Pump, open circuit
Size (NG)
40
71
125
180
250
355
500
750
1000
●
●
●
●
●
●
●
●
●
DR1)
●
●
●
●
●
●
●
●
●
DRG1)
●
●
●
●
●
●
●
●
●
DP1)
F
‒
‒
●
●
●
●
‒
‒
‒
DPF
●
●
●
●
●
●
‒
‒
‒
FR
G
●
●
●
●
●
●
‒
‒
‒
FRG
●
●
●
●
●
●
‒
‒
‒
FR1
05 Geometric displacement
Control device
06 Pressure controller
remote controlled
Pressure control for parallel operation
with flow control
Flow controller
DR
DR
G
DP
DP
FR
with pressure control, remote controlled
FR
FR no connection from XF to the tank
FR
1
FRG
1
●
●
●
●
●
●
‒
‒
‒
FRG1
●
●
●
●
●
●
‒
‒
‒
DFR
●
●
●
●
●
●
‒
‒
‒
DFR1
07 Series 1, index 0
●
●
‒
‒
‒
‒
‒
‒
‒
10
Series 3, index 0
‒
‒
●
●
●
●
●
●
●
30
FRG no connection from XF to the tank
Pressure and flow controller
no connection from XF to the tank
DFR
DFR
1
Series
For details see data sheet 92050
08 Direction of rotation
09 Seal
10 Drive shaft
11 Mounting flange
12 Service line ports
13 Through drive
● = Available
1)
‒ = Not available
Available in mooring and swivel-through operation on request
Bosch Rexroth AG, RE 92060/04.2014
Controllers | DR, DP, FR and DFR 3
DR − pressure controller
DR − pressure controller
The pressure controller limits the maximum pressure at the
▼▼ Static characteristic
pump outlet within the control range of the variable pump.
The variable pump only moves as much hydraulic fluid as is
Operating pressure p [bar]
exceeds the pressure setting at the pressure control valve,
the pump will regulate to a smaller displacement to reduce
the control differential.
▶▶ Recommended setting range 50 to 350 bar.
350 bar is set as standard.
When ordering, please state other values in plain text.
▶▶ Initial position in depressurized state: Vg max
50
▶▶ Mechanical minimum and maximum swivel angle limita-
qv min
tion
20 bar is set when port B is plugged.
–– The Vg max stop is set to nominal Vg max. When ordering, please state other settings values in plain text
(possible setting ranges Vg max to 50 % Vg max).
The pressure controller for mooring and swivel-through
operation is available on request. For decompression, the
pump swivels over zero in operation as a motor.
Remote controlled pressure control optionally available –
qv max
Flow
A4VSO - open circuit
▼▼ Flow direction S to B
Direction of rotation Swiveling range1)
Pump
High pressure port
clockwise
left
B
counter-clockwise
right
B
1)
cf. swivel angle indicator
right
left
15° 0° 15°
–– The Vg min stop is set so that a pressure of 15 to
Pressure deviation ≤ 3 bar
350
required by the consumers. If the operating pressure
DRG see page 6, pressure controller for parallel operation
DP see page 11
RE 92060/04.2014, Bosch Rexroth AG
DR, DP, FR and DFR | Controllers
Ordering code – A4VSO
4
Dynamic characteristics
Load step by opening and closing a pressure line with a
pressure-relief valve as load valve 1 m after the connection
flange of the axial piston unit.
Operating pressure p [bar]
400
Swivel times
NG
tSA [s]
tSA [s]
tSE [s]
against 20 bar
against 330 bar
zero stroke 350 bar
40
approx. 0.12
approx. 0.08
0.02
71
approx. 0.20
approx. 0.10
0.03
125
approx. 0.30
approx. 0.20
0.04
350
180
approx. 0.30
approx. 0.20
0.05
300
250
approx. 0.40
approx. 0.30
0.06
355
approx. 0.40
approx. 0.30
0.08
500
approx. 0.50
approx. 0.30
0.10
750
approx. 1.00
approx. 0.60
0.15
1000
approx. 1.50
approx. 0.90
0.20
200
100
The values of the outward swivel time tSA (Vg min → Vg max)
can be shortened by the factor 2 to 3 if required (please
0
contact us).
Vg max
Displacement
(swivel angle)
This does not have any effect on the inward swivel time tSE .
Vg min
Swivel time t
Outward swivel time tSA Inward swivel time tSE
Note
Characteristics are measured median values at:
▶▶ n = 1500/1800 rpm
▶▶ Pressure safeguarding at 400 bar
Bosch Rexroth AG, RE 92060/04.2014
Controllers | DR, DP, FR and DFR 5
Ordering code – A4VSO
DR schematics
Controller range (gray field) applicable for A4VSO
▼▼ Example A4VSO, sizes 40 and 71
▼▼ Example A4VSO, sizes 125 to 355
2
2
B1 B MB
B1 B MB
1.1
U S MS
3
1.1
U S MS
K1 K2 T R(L)
M1 K1 K2 T R(L)
M2
▼▼ Example A4VSO, sizes 500 to 1000
2
3
B1 B MB
M2
M1
1.1
U S MS
K1 K2 T R(L)
Components
1
Pump with hydraulic control device
1.1
A4VSO (see data sheet 92050)
2
Pressure control valve
3
Intermediate plate (NG 125 to 1000)
RE 92060/04.2014, Bosch Rexroth AG
6
DR, DP, FR and DFR | Controllers
DRG − remote controlled pressure controller
DRG − remote controlled pressure controller
Function and equipment as for DR.
Note for setting the remote controlled pressure control:
A pressure-relief valve (pos.4) can be piped externally at
The setting value for the external pressure relief valve plus
port XD for remote control, although the pressure-relief
the differential pressure value at the pressure control valve
valve is not included in the scope of supply for the DRG
determines the level of pressure control.
control.
Example: External pressure relief valve
Version with built-on valve on request.
Differential pressure at pressure
control valve
Pressure control at The differential pressure at the pressure control valve
330 bar
20 bar
330 + 20 = 350 bar
(pos.2) is set to 20 bar as standard, the quantity of control
required, please state in plain text.
As a separate pressure-relief valve, we recommend:
▶▶ DBD 6 (hydraulic) as per data sheet 25402.
The maximum wire length should not exceed 2 m.
max.350
External pressurerelief valve
20
qv min
Δp pressure control valve
Flow
Pressure deviation ≤ 3 bar
different setting (recommended range 20 to 50 bar) is
Operating pressure p [bar]
liquid emerging at port XD is then approx. 1.5 l/min. If a
qv max
For the function, description, and swivel times of the pressure controller DR, see pages 3 and 4.
Bosch Rexroth AG, RE 92060/04.2014
Controllers | DR, DP, FR and DFR 7
DRG − remote controlled pressure controller
DRG schematics
Controller range (gray field) applicable for A4VSO
▼▼ Example A4VSO, sizes 40 and 71
▼▼ Example A4VSO, sizes 125 to 355
2
2
XD
XD
4
B1 B MB
B1 B MB
3
1.1
1.1
U S MS
4
U S MS
K1 K2 T R(L)
M1 K1 K2 T R(L)
M2
▼▼ Example A4VSO, sizes 500 to 1000
4
XD
2
B1 B MB
M2
M1
3
1.1
U S MS
K1 K2 T R(L)
Components
1
Pump with hydraulic control device
1.1
A4VSO (see data sheet 92050)
2
Pressure control valve
3
Intermediate plate (NG 125 to 1000)
4
External pressure-relief valve
(not included in the scope of supply)
RE 92060/04.2014, Bosch Rexroth AG
Dimensions [mm]
DR, DP, FR and DFR | Controllers
DRG − remote controlled pressure controller
8
Dimensions DR / DRG
▼▼ A4VSO, sizes 40 and 71
A7
XD
A8
A2
Pressure control valve
B
Pressure control valve mounting
for clockwise rotation
A5
15 0 15
Einschraubloch M33
A6
A1
LR
A3
XD
A4
R(L)
B
(XD for counter-clockwise
rotation)
(Pressure control valve mounting
for counter-clockwise rotation)
NG1)
A1
A2
A3
A4
A5
A6
A7
A8
40
260
140
147
137
47
67
209
128
71
298
157
142
142
42
72
236
144
Port
XD (DRG)
Pilot pressure remote control
pressure controller
Standard
Size2)
DIN 3852
M14 x 1.5; 12 deep
For detailed dimensions and technical data of the
v ariable pump, see data sheet 92050 (A4VSO)
pmax abs [bar]3)
400
XD (DR)
1)
2)
3)
For sizes 500 to 1000 see page 10
Observe the general instructions on page 28 for the maximum
tightening torques.
Momentary pressure spikes may occur depending on the application.
Keep this in mind when selecting measuring devices and fittings.
Bosch Rexroth AG, RE 92060/04.2014
State4)
O
X
4)
O = Must be connected (plugged on delivery)
X = Plugged (in normal operation)
Dimensions [mm]
Controllers | DR, DP, FR and DFR 9
DRG − remote controlled pressure controller
▼▼ A4VSO, sizes 125 to 355
A7
Intermediate plate
XD
A8
A2
Pressure control valve
B
M2(M1)
Pressure control valve mounting
for clockwise rotation
A5
Einschraubloch M33
A6
LR
15 0 15
A1
XD
R(L)
B
M1(M2)
NG1)
A1
A2
A5
A6
A7
A8
125/180
354
191
41
71
305
172
250/355
424
238
41
71
367
208
Port
XD (DRG)
(XD for counter-clockwise rotation)
(Pressure control valve mounting
for counter-clockwise rotation)
For detailed dimensions and technical data of the variable pump, see data
sheet 92050 (A4VSO)
Standard
Size2)
Pilot pressure remote control
pressure controller
DIN 3852
M14 x 1.5; 12 deep
400
Measurement of stroking chamber
pressure
DIN 3852
M14 x 1.5; 12 deep (NG 125 and 180)
M18 x 1.5; 12 deep (NG 250 and 355)
400
pmax abs [bar]3)
XD (DR)
M1; M2
1)
2)
3)
State4)
O
X
For sizes 500 to 1000 see page 10
Observe the general instructions on page 28 for the maximum
tightening torques.
Momentary pressure spikes may occur depending on the application.
Keep this in mind when selecting measuring devices and fittings.
4)
X
X
O = Must be connected (plugged on delivery)
X = Plugged (in normal operation)
RE 92060/04.2014, Bosch Rexroth AG
10
Dimensions [mm]
DR, DP, FR and DFR | Controllers
DRG − remote controlled pressure controller
▼▼ A4VSO, sizes 500 to 1000
Intermediate plate
A7
Pressure control valve
A8
A2
XD
B
M2(M1)
Pressure control valve mounting
for clockwise rotation
A5
Einschraubloch M33
A6
15 0 15
LR
A1
XD
R(L)
(XD for counter-clockwise rotation)
B
(Pressure control valve mounting
for counter-clockwise rotation)
M1(M2)
NG1)
A1
A2
A5
A6
A7
A8
500
510
283
41
51
452
216
750
582
322
41
51
484
235
1000
622
350
41
51
550
269
Port
XD (DRG)
For detailed dimensions and technical data of the variable pump, see data
sheet 92050 (A4VSO)
Standard
Size2)
Pilot pressure remote control pressure
controller
DIN 3852
M14 x 1.5; 12 deep
400
Measurement of stroking chamber
pressure
DIN 3852
M14 x 1.5; 12 deep
400
pmax abs [bar]3)
XD (DR)
M1; M2
1)
2)
State4)
O
X
For sizes 40 and 71 see page 8; for sizes 125 to 355 see page 9
Observe the general instructions on page 28 for the maximum
tightening torques.
Bosch Rexroth AG, RE 92060/04.2014
3)
4)
X
Momentary pressure spikes may occur depending on the application.
Keep this in mind when selecting measuring devices and fittings.
O = Must be connected (plugged on delivery)
X = Plugged (in normal operation)
Controllers | DR, DP, FR and DFR 11
DP − pressure controller for parallel operation
DP − pressure controller for parallel operation
Suitable for pressure control of multiple axial piston units
The DP controller for mooring and swivel-through operation
A4VS in parallel operation.
is available on request. For decompression, the pump
An external pressure-relief valve (pos. 4) actuates multiple
swivels over zero in operation as a motor.
axial piston units together over ports XD. The respective
throttle valve (Pos. 5) provides the pressure increase pro-
Swivel times as for DR, see page 4.
portional to the current pump setting that is required for
Flow control is optionally available – DPF see page 18
parallel control.
100%
Swivel angle a
10%
▶▶ Initial position in depressurized state: Vg max
Differential pressure setting on the controller
The control valve (pos. 2) plus throttle valve (pos. 5) is set
to 33 bar when the XD port is relieved. The quantity of
control liquid emerging at port XD is then approx. 1.5 l/min.
The setting value for the external pressure relief valve plus
the basic setting of the controller determines the level of
0
pressure control.
qv min
▶▶ Adjustment range 33 to 350 bar
The pressure increase is retained independently of the
setting value of the external pressure-relief valve and
Flow
qv max
Swivel angle deviation ± 10 % from the setpoint value
ensures the swivel angle deviation is low for all mutually
▼▼ Static characteristic
pressure-relief valve.
350
Operating pressure
p [bar]
The pressure-relief valve (Pos. 4) is not included in the
scope of supply of the DP - please order separately.
▶▶ Recommendation: DBD 6 (hydraulic) as per data sheet
25402.
▶▶ Mechanical minimum and maximum swivel angle limitation
33
–– The Vg min stop is set so that a pressure of 15 to
20 bar is set when port B is plugged.
qv min
–– The Vg max stop is set to nominal Vg max. When ordering,
please state other settings requests in plain text (possible setting ranges Vg max to 50 % Vg max).
The maximum number of pumps is limited by the output of
the used pressure-relief valve (pos. 4).
Single pumps can be relieved to the amount of the basic
setting by the relief valve (pos. 6) as required. A check valve
(pos. 7) is then additionally needed at the pressure port.
Both valves are not included in the scope of supply.
Special version with mounted relief valve (pos. 6) is avail-
qv max
Flow
A4VSO - open circuit
▼▼ Flow direction S to B
Direction of rotation Swiveling range1)
pump
High-pressure port
clockwise
left
B
counter-clockwise
right
B
1)
cf. swivel angle indicator
able on request.
right
left
15° 0° 15°
Use the same as possible line lengths from ports XD to the
Δp = 6.5±2 bar
activated pumps.
RE 92060/04.2014, Bosch Rexroth AG
12
DR, DP, FR and DFR | Controllers
DP − pressure controller for parallel operation
DP schematics
Controller range (gray field) applicable for A4VSO
▼▼ Example A4VSO, sizes 40 and 71
Connection
of further axial
piston units
4
Mst
XD
6
Mst
XD
6
7
7
5
5
2
B1 B MB
2
B1 B MB
1.1
1.1
U S MS
K1 K2 T R(L) M2
U S MS
K1 K2 T R(L) M2
▼▼ Example A4VSO, sizes 125 to 355
4
Mst
XD
6
Mst
XD
Connection
of further
axial piston
units
6
7
7
5
2
B1 B MB
5
B1 B MB
1.1
1.1
U S MS
2
K1 K2 T R(L) M2
Port
XD
Pilot pressure pressure controller
MSt
Pilot pressure measurement
M1, M2 Measurement stroking chamber pressure (NG 125 to 1000)
Bosch Rexroth AG, RE 92060/04.2014
U S MS
K1 K2 T R(L) M2
Controllers | DR, DP, FR and DFR 13
DP − pressure controller for parallel operation
▼▼ Example A4VSO, sizes 500 to 1000
Connection
of further axial
piston units
4
Mst
Mst
6
XD
7
2
5
M2
M1
B1 B MB
7
2
5
M2
M1
B1 B MB
3
3
1.1
1.1
U S MS
6
XD
K1 K2 T R(L)
U S MS
K1 K2 T R(L)
Port
XD
Pilot pressure pressure controller
MSt
Pilot pressure measurement
M1, M2 Measurement of stroking chamber pressure
Components
1
Pump with hydraulic control device
1.1
A4VSO (see data sheet 92050)
2
Control valve with pressure compensator
3
Intermediate plate (NG 500 to 1000)
4
Pressure-relief valve (not included in the scope of supply)
5
Throttle valve
6
Relief valve (not included in the scope of supply)
7
Check valve (not included in the scope of supply)
only required in combination with relief valve
RE 92060/04.2014, Bosch Rexroth AG
Dimensions [mm]
DR, DP, FR and DFR | Controllers
DP − pressure controller for parallel operation
14
Dimensions DP
▼▼ A4VSO, sizes 40 and 71
▼▼ A4VSO, sizes 125 to 355
A6 to flanging face
A6 to flanging face
5
XD
5
XD
3
2
2
A7
A2
1.1
A7
A2
1.1
B
B
Control valve mounting
for clockwise rotation
Control valve mounting
for clockwise rotation
M2(M1)
XD
M14x1.50
A3
XD
M14x1.50
M14x1.50
R(L)
MSt
15 0 15
LR
A5
A1
Einschraubloch M33
A4
15 0 15
A5
LR
A1
M14x1.50
Einschraubloch M33
R(L)
MSt
Schl.weite: 30 mm
B
B
M1(M2)
(Control valve mounting
for counter-clockwise
rotation)
NG
A1
A2
A3
A4
A5
A6
A7
40
260
210
147
137
39
133
170
71
225
225
142
142
39
155
187
125/180
354
261
–
–
39
192
221
250/355
424
306
–
–
39
237
268
Port
Standard
(Control valve mounting
for counter-clockwise
rotation)
For detailed dimensions and technical data of the variable pump,
see data sheet 92050 (A4VSO)
Size2)
pmax abs [bar]3)
State4)
XD
Pilot pressure pressure controller
DIN 3852
M14 x 1.5; 12 deep
400
O
MSt
Measurement of stroking chamber
pressure
DIN 3853
S8 shape W
400
X
M1; M2
Measurement of stroking chamber
pressure
DIN 3852
M14 x 1.5; 12 deep (NG 125 and 180)
M18 x 1.5; 12 deep (NG 250 and 355)
400
X
X
Components, see page 13
1)
2)
Observe the general instructions on page 28 for the maximum
tightening torques.
Momentary pressure spikes may occur depending on the application.
Keep this in mind when selecting measuring devices and fittings.
Bosch Rexroth AG, RE 92060/04.2014
3)
O = Must be connected (plugged on delivery)
X = Plugged (in normal operation)
Dimensions [mm]
Controllers | DR, DP, FR and DFR 15
DP − pressure controller for parallel operation
▼▼ A4VSO, sizes 500 to 1000
A6 to flanging face
5
XD
3 2
MSt
A7
A2
1.1
B
Control valve mounting
for clockwise rotation
M2(M1)
15 0 15
LR
A5
A1
XD
Einschraubloch M33
R(L)
MSt
Components
1
Pump with hydraulic control device
1.1
A4VSO (see data sheet 92050)
M1(M2)
2
Control valve with pressure compensator
(Control valve mounting for
counter-clockwise rotation)
3
Intermediate plate (NG 125 to 1000)
5
Throttle valve
B
NG
A1
A2
A5
A6
A7
500
510
353
39
268
313
750
582
392
39
290
352
1000
622
419
39
349
379
Port
Standard
Size1)
pmax abs [bar]3)
State3)
XD
Pilot pressure pressure controller
DIN 3852
M14 x 1.5; 12 deep
400
O
MSt
Pilot pressure measurement
DIN 3853
S8 shape W
400
X
M1; M2
Measurement of stroking chamber
pressure
DIN 3852
M14 x 1.5; 12 deep
400
X
1)
2)
For detailed dimensions and technical data of the variable pump, see data sheet
92050 (A4VSO)
Observe the general instructions on page 28 for the maximum
tightening torques.
Momentary pressure spikes may occur depending on the application.
Keep this in mind when selecting measuring devices and fittings.
3)
O = Must be connected (plugged on delivery)
X = Plugged (in normal operation)
RE 92060/04.2014, Bosch Rexroth AG
16
DR, DP, FR and DFR | Controllers
DPF − with flow controller
DPF − with flow controller
In addition to the pressure control function, a differential
A4VSO - open circuit
pressure can be used to control the flow from the pumps,
e. g. by an orifice between the pump and consumer. The
▼▼ Static characteristic
pump supplies only the amount of fluid actually required by
the consumer.
350
tion of the external measuring orifice (pos. 9), which is
located between the pump and the consumer. The flow is
nearly independent of the load pressure below the setting
value of the pressure control and within the control range
of the pump.
For a description of the flow controller, see FR page 19.
Δp = 6.5±2 bar
Operating pressure
p [bar]
The flow of the pump is then dependent on the cross sec-
33
For the function and technical data of the parallel pressure
controller DP, see page 11.
qv min
Flow
qv max
▼▼ Flow direction S to B
High-pressure port
clockwise
left
B
counter-clockwise
right
B
1)
Bosch Rexroth AG, RE 92060/04.2014
cf. swivel angle indicator
right
left
15° 0° 15°
Direction of rotation Swiveling range1)
pump
Controllers | DR, DP, FR and DFR 17
DPF − with flow controller
DPF schematics
▼▼ A4VSO, size 125 to 355
9
Connection
of further
pumps
4
Mst
XF
7
8
XD
2
5
3
B1 B MB
Mst
6
XF
7
U S MS
M1 K1 K2 T R(L)
8
XD
2
5
3
B1 B MB
1.1
6
1.1
M2
U S MS
M1 K1 K2 T R(L)
M2
Port
XD
Pilot pressure pressure controller
XF
Pilot pressure flow controller
MSt
Pilot pressure measurement
M1,
M2
Measurement of stroking chamber pressure
Components
1
Pump with hydraulic control device
1.1
A4VSO (see data sheet 92050)
2
Control valve with pressure compensator
3
Intermediate plate
4
Pressure-relief valve (not included in the scope of supply)
5
Throttle valve
6
Relief valve (not included in the scope of supply)
7
Check valve (not included in the scope of supply)
only required in combination with relief valve
8
Flow control valve
9
External measuring orifice (not included in the scope of
supply)
RE 92060/04.2014, Bosch Rexroth AG
Dimensions [mm]
DR, DP, FR and DFR | Controllers
DPF − with flow controller
18
Dimensions DPF
▼▼ A4VSO, size 125 to 355
A11 to flanging face
A9 to flanging face
A7 to flanging face
5
XD
3
XF
2
8
A8
A11
A2
1.1
B
Valve mounting for
M2(M1) clockwise rotation
XD
MSt
A5
Einschraubloch M33
A6
15 0 15
LR
A12
A1
XF
R(L)
B
M1(M2) (Valve mounting for counterclockwise rotation)
NG
A1
A2
A5
A6
A7
A8
A9
A10
A11
A12
125
354
261
41
71
191.5
172
345
220.5
371
39
180
354
261
41
71
191.5
172
345
220.5
371
39
250
424
306
41
51
236.5
208
407
267.5
433
39
355
424
306
41
51
236.5
208
407
267.5
433
39
Port
Standard
Size
For detailed dimensions and technical data of the
variable pump, see data sheet 92050 (A4VSO)
pmax abs [bar]2)
1)
State
3)
XD
Pilot pressure pressure controller DIN 3852
M14 x 1.5; 12 deep
400
O
XF
Pilot pressure flow controller
DIN 3852
M14 x 1.5; 12 deep
400
O
MSt
Pilot pressure measurement
DIN 3853
S8 shape W
400
X
M1; M2
Measurement of stroking
chamber pressure
DIN 3852
M14 x 1.5; 12 deep (NG 125 and 180)
M18 x 1.5; 12 deep (NG 250 and 355)
400
X
X
Components, see page 17
1)
2)
Observe the general instructions on page 28 for the maximum
tightening torques.
Momentary pressure spikes may occur depending on the application.
Keep this in mind when selecting measuring devices and fittings.
Bosch Rexroth AG, RE 92060/04.2014
3)
O = Must be connected (plugged on delivery)
X = Plugged (in normal operation)
Controllers | DR, DP, FR and DFR 19
FR/FR1 − flow controller
FR/FR1 − flow controller
The flow controller adjusts the displacement of the pump
A4VSO - open circuit
to the volume required by the consumer.
The flow of the pump is then dependent on the cross sec-
▼▼ Static characteristic
tion of the external measuring orifice (pos. 4), which is
located between the pump and the consumer. The flow is
nearly independent of the load pressure within the control
350
max
range of the pump (see maximum flow deviation below).
Operating pressure p →
The opening cross section of the measuring orifice determines the flow of the pump.
The flow controller compares the pressure before the
measuring orifice with that after the orifice and maintains
the pressure drop encountered here (differential pressure
∆p) and thus controls the flow.
If the differential pressure ∆p increases, the pump is swiveled back (towards Vg min), if the differential pressure ∆p
14 min
0
qv min
decreases the pump is swiveled out (towards Vg max), until
equilibrium in the valve is restored.
∆porifice = ppump – pconsumer
∆p is 14 bar. If a different setting (recommended range
14 to 25 bar) is required, please state in plain text. Higher
values on request.
The stand-by pressure in zero stroke operation (sensing
orifice plugged) is slightly above the ∆p setting.
The DFR1 version has no connection from XF to the tank.
▼▼ Flow direction S to B
Direction of rotation Swiveling range1)
pump
High-pressure port
clockwise
left
B
counter-clockwise
right
B
1)
cf. swivel angle indicator
right
left
▶▶ Initial position in depressurized state: Vg max
▶▶ Mechanical minimum and maximum swivel angle limita-
15° 0° 15°
The standard setting on the flow control valve (pos. 2) for
qv max
Flow
▼▼ Static characteristic at variable rotational speed
tion
–– The Vg min stop is set so that a pressure of 15 to
20 bar is set when port B is plugged.
–– The Vg max stop is set to nominal Vg max. When ordering,
(possible setting ranges Vg max to 50 % Vg max).
Flow qv
please state other settings requests in plain text
Rotational speed n
▼▼ Max. flow deviation
measured at drive speed n = 1500 rpm
Size
40
71
125
180
250
355
∆pv [l/min]
3
3
5
6
8
10
RE 92060/04.2014, Bosch Rexroth AG
DR, DP, FR and DFR | Controllers
FR/FR1 − flow controller
20
▼▼ Dynamic characteristic
Swivel times
The characteristics are measured median values.
Flow step standby / qv max through relief of the X port to
the tank.
100
400
75
300
50
200
25
Load pressure
[bar]
Displacement Vg [%]
350
100
50
Standby
0
NG
tSA [s]
standby...350 bar
tSE [s]
tSE [s]
350 bar...standby
50 bar...standby
40
approx. 0.1
0.02
0.050
71
approx. 0.2
0.03
0.075
125
approx. 0.3
0.04
0.100
180
approx. 0.4
0.05
0.120
250
approx. 0.4
0.06
0.150
355
approx. 0.5
0.07
0.180
The values of the outward swivel time tSA (Vg min → Vg max)
can be shortened by the factor 2 to 3 if required (please
contact us).
This does not have any effect on the inward swivel time tSE .
Swivel time t
Outward swivel time tSA
Inward swivel time tSE
FR/FR1 schematics
▼▼ A4VSO, sizes 40 and 71
▼▼ A4VSO, sizes 125 to 355
for FR1
plugged
B
for FR1
plugged
B
XF
XF
4
2
B1 B MB
U S MS
K1 K2 T R(L)
Port
Pilot pressure flow controller
M1, M2 Measurement stroking chamber pressure (NG 125 to 355)
Components
1
Pump with hydraulic control device
1.1
A4VSO (see data sheet 92050)
2
Flow control valve
3
Intermediate plate (NG 125 to 355)
4
External measuring orifice (not included in the scope of
supply)
Bosch Rexroth AG, RE 92060/04.2014
3
B1 B MB
1.1
XF
2
4
1.1
U S MS
M1 K1 K2 T R(L)
M2
Dimensions [mm]
Controllers | DR, DP, FR and DFR 21
FR/FR1 − flow controller
Dimensions FR/FR1
▼▼ A4VSO, sizes 40 and 71
▼▼ A4VSO, size 125 to 355
A7 to flanging face
A7 to flanging face
XF
1.1
3
2
XF
2
A8
A2
A8
A2
1.1
B
Valve mounting for
clockwise rotation
B
Valve mounting for
clockwise rotation
M2(M1)
A3
XF
M14x1.50
XF
M14x1.50
A5
A5
M14x1.50
Einschraubloch M33
A6
15 0 15
LR
A1
Einschraubloch M33
A6
15 0 15
A1
LR
M14x1.50
A4
R(L)
Schl.weite: 30 mm
R(L)
B
B
(Valve mounting
for counter-clockwise rotation)
(Valve mounting for counter-clockwise rotation)
NG
A1
A2
A3
A4
A5
A6
A7
A8
40
260
140
147
137
47
67
209
128
71
298
157
142
142
42
72
236
144
125/180
354
191
–
–
41
71
305
172
250/355
424
238
–
–
41
71
367
208
Port
Standard
(XF for counterclockwise rotation)
For detailed dimensions and technical data of the variable
pump, see data sheet 92050 (A4VSO)
Size1)
pmax abs [bar]2)
State3)
XF
Pilot pressure flow controller
DIN 3852
M14 x 1.5; 12 deep
400
O
M1; M2
Measurement of stroking
chamber pressure
DIN 3852
M14 x 1.5; 12 deep (NG 125 and 180)
M18 x 1.5; 12 deep (NG 250 and 355)
400
X
X
1)
2)
M1(M2)
(XF for counterclockwise rotation)
Observe the general instructions on page 28 for the maximum
tightening torques.
Momentary pressure spikes may occur depending on the application.
Keep this in mind when selecting measuring devices and fittings.
3)
O = Must be connected (plugged on delivery)
X = Plugged (in normal operation)
RE 92060/04.2014, Bosch Rexroth AG
22
DR, DP, FR and DFR | Controllers
FRG/FRG1 − flow controller with remote controlled pressure control
FRG/FRG1 − flow controller with remote controlled pressure control
The FRG pressure flow controller is a combination of FR
A4VSO - open circuit
(FR1) and DRG.
The flow control is overridden by a pressure control that is
▼▼ Characteristic
controlled by a separate pressure-relief valve (pos. 4).
For the function and technical data of the remote controlled pressure control, see page 7.
ler, see pages 19 and 20.
The FRG1 version has no connection from XF to the tank.
max
Operating pressure p [bar]
For the function and technical data of the FR flow control-
350
20 min
0
qv min
Flow
qv max
▼▼ Flow direction S to B
High-pressure port
clockwise
left
B
counter-clockwise
right
B
1)
Bosch Rexroth AG, RE 92060/04.2014
cf. swivel angle indicator
right
left
15° 0° 15°
Direction of rotation Swiveling range1)
Pump
Controllers | DR, DP, FR and DFR 23
FRG/FRG1 − flow controller with remote controlled pressure control
▼▼ A4VSO, sizes 40 and 71
▼▼ A4VSO, sizes 125 to 355
for FRG1
plugged
B
4
B
XF
XF
2
2
XD
5
6
B1 B MB
4
XD
5
K1 K2 T R(L)
6
3
B1 B MB
1.1
U S MS
for FRG1
plugged
1.1
U S MS
M1 K1 K2 T R(L)
M2
Port
XD
Pilot pressure remote control pressure controller
XF
Pilot pressure flow controller
M1, M2 Measurement stroking chamber pressure (NG 125 to 355)
Components
1
Pump with hydraulic control device
1.1
A4VSO (see data sheet 92050)
2
Flow control valve
3
Intermediate plate (NG 125 to 355)
4
External measuring orifice (not included in the scope of
supply)
5
Pressure control valve
6
External pressure control valve (not included in the scope
of supply)
RE 92060/04.2014, Bosch Rexroth AG
24
Dimensions [mm]
DR, DP, FR and DFR | Controllers
FRG/FRG1 − flow controller with remote controlled pressure control
Dimensions FRG/FRG1
▼▼ A4VSO, size 125 to 355
▼▼ A4VSO, sizes 40 and 71
A10 to flanging face
A10 to flanging face
A9 to flanging face
A9 to flanging face
A7 to flanging face
A7
5
to flanging face
3
XF
XD
5
XD
1.1
2
B
B
Valve mounting for
clockwise rotation
Valve mounting for
clockwise rotation
XD
M2(M1)
XD
A5
15 0 15
Einschraubloch M33
LR
A1
A5
XF
Einschraubloch M33
A4
R(L)
A6
A6
15 0 15
LR
A1
A3
XF
Schl.weite: 30 mm
R(L)
Schl.weite: 30 mm
B
B
(Valve mounting for counterclockwise rotation)
A1
A2
A3
A8
2
A2
A8
A2
1.1
NG
XF
A4
M1(M2)
(Valve mounting for counterclockwise rotation)
(XD and XF for counterclockwise rotation)
A5
A6
A7
A8
A9
A10
40
260
140
147
137
47
67
209
128
249
275
71
298
157
142
142
42
72
236
144
276
302
125/180
354
191
–
–
41
71
305
172
345
371
250/355
424
238
–
–
41
71
367
208
407
433
Port
(XD and XF for
counter-clockwise rotation)
For detailed dimensions and technical data
of the variable pump, see data sheet 92050
(A4VSO)
Standard
Size1)
M14 x 1.5; 12 deep
400
O
pmax abs [bar]2)
State3)
XD
Pilot pressure remote control pressure
controller
DIN 3852
XF
Pilot pressure flow controller
DIN 3852
M14 x 1.5; 12 deep
400
O
M1; M2
Measurement of stroking chamber
pressure
DIN 3852
M14 x 1.5; 12 deep (NG 125 and 180)
M18 x 1.5; 12 deep (NG 250 and 355)
400
X
X
Components, see page 23
1)
2)
Observe the general instructions on page 28 for the maximum
tightening torques.
Momentary pressure spikes may occur depending on the application.
Keep this in mind when selecting measuring devices and fittings.
Bosch Rexroth AG, RE 92060/04.2014
3)
O = Must be connected (plugged on delivery)
X = Plugged (in normal operation)
Controllers | DR, DP, FR and DFR 25
DFR/DFR1 − pressure-flow controller
DFR/DFR1 − pressure-flow controller
The DFR pressure and flow controller DFR is a combination
A4VSO - open circuit
of the DR pressure controller and FR flow controller.
For the function and technical data, see DR (page 3) and
▼▼ Static characteristic
FR (page 19).
The DFR1 version has no connection from XF to the tank.
Operating pressure p [bar]
▶▶ Initial position in depressurized state: Vg max
Pressure deviation ≤ 3 bar
350
▶▶ Mechanical minimum and maximum swivel angle limitation
–– The Vg min stop is set so that a pressure of 15 to
20 bar is set when port B is plugged.
–– The Vg max stop is set to nominal Vg max. When ordering,
please state other settings requests in plain text
(possible setting ranges Vg max to 50 % Vg max).
50
qv min
qv max
Flow
▼▼ Flow direction S to B
High-pressure port
clockwise
left
B
counter-clockwise
right
B
1)
cf. swivel angle indicator
right
left
15° 0° 15°
Direction of rotation Swiveling range1)
pump
RE 92060/04.2014, Bosch Rexroth AG
26
DR, DP, FR and DFR | Controllers
DFR/DFR1 − pressure-flow controller
DFR/DFR1 schematics
▼▼ A4VSO, sizes 40 and 71
▼▼ A4VSO, sizes 125 to 355
for DFR1
plugged
B
for DFR1
plugged
B
XF
XF
2
2
4
5
B1 B MB
4
5
B1 B MB
3
1.1
U S MS
K1 K2 T R(L)
Port
XF
Pilot pressure flow controller
M1, M2 Measurement stroking chamber pressure (NG 125 to 355)
Components
1
Pump with hydraulic control device
1.1
A4VSO (see data sheet 92050)
2
Flow control valve
3
Intermediate plate (NG 125 to 355)
4
External measuring orifice (not included in the scope of
supply)
5
Pressure control valve
Bosch Rexroth AG, RE 92060/04.2014
1.1
U S MS
M1 K1 K2 T R(L)
M2
Dimensions [mm]
Controllers | DR, DP, FR and DFR 27
DFR/DFR1 − pressure-flow controller
Dimensions DFR/DFR1
▼▼ A4VSO, sizes 40 and 71
▼▼ A4VSO, size 125 to 355
A9 to flanging face
A9 to flanging face
A7 to flanging face
A7 to flanging face
5
3
XF
1.1
B
A3
Valve mounting for
clockwise rotation
A5
Einschraubloch M33
A6
15 0 15
Einschraubloch M33
LR
A1
A5
XF
A6
15 0 15
A1
B
M2(M1)
XF
A4
R(L)
Schl.weite: 30 mm
R(L)
Schl.weite: 30 mm
B
B
(Valve mounting for counterclockwise rotation)
A1
A2
A3
A4
A5
A6
M1(M2)
A7
A8
40
260
140
147
137
47
67
249
128
275
298
157
142
142
42
72
276
144
302
125/180
354
191
–
–
41
71
345
172
371
250/355
424
238
–
–
41
71
407
208
433
Standard
(Valve mounting for
counter-clockwise
rotation)
A9
71
Port
For detailed dimensions and technical data of the
variable pump, see data sheet 92050 (A4VSO)
Size1)
pmax abs [bar]2)
State3)
XF
Pilot pressure flow controller
DIN 3852
M14 x 1.5; 12 deep
400
O
M1; M2
Measurement of stroking chamber
pressure
DIN 3852
M14 x 1.5; 12 deep (NG 125 and 180)
M18 x 1.5; 12 deep (NG 250 and 355)
400
X
X
1)
2)
A8
A2
A8
A2
2
Valve mounting for
clockwise rotation
NG
XF
1.1
2
LR
5
Observe the general instructions on page 28 for the maximum
tightening torques.
Momentary pressure spikes may occur depending on the application.
Keep this in mind when selecting measuring devices and fittings.
3)
O = Must be connected (plugged on delivery)
X = Plugged (in normal operation)
RE 92060/04.2014, Bosch Rexroth AG
DR, DP, FR and DFR | Controllers
General instructions
28
General instructions
▶▶ Basically, the installation instructions for the variable
pump A4VSO - data sheet 92050 apply.
▶▶ The DR, DP, FR, and DFR controllers together with the
pump A4VSO are intended for open circuit operation.
▶▶ The project planning, installation and commissioning of
▶▶ Pressure controls are not backups against pressure overload. A separate pressure-relief valve is to be provided in
the hydraulic system.
▶▶ The following tightening torques apply:
–– Fittings:
the axial piston unit requires the involvement of skilled
Observe the manufacturer's specifications regarding
person.
the tightening torques of the fittings used.
▶▶ Before using the axial piston unit, please read the corre-
–– Mounting bolts:
sponding instruction manual completely and thoroughly.
For mounting bolts with metric ISO thread according
If necessary, these can be requested from Bosch
to DIN 13 or thread according to ASME B1.1, we
Rexroth.
recommend checking the tightening torque in indi-
▶▶ Depending on the operating conditions of the axial
piston unit (operating pressure, fluid temperature), the
vidual cases in accordance with VDI 2230.
–– Female threads in the axial piston unit:
characteristic may shift.
The maximum permissible tightening torques MG max
are maximum values for the threaded holes and must
▶▶ Service line ports:
–– The ports and fastening threads are designed for the
specified maximum pressure. The machine or system
not be exceeded. For values, see the following table.
–– Threaded plugs:
manufacturer must ensure that the connecting ele-
For the metallic threaded plugs supplied with the
ments and lines correspond to the specified applica-
axial piston unit, the required tightening torques of
tion conditions (pressure, flow, hydraulic fluid, tem-
threaded plugs MV apply. For values, see the follow-
perature) with the necessary safety factors.
ing table.
–– The service line ports and function ports can only be
used to accommodate hydraulic lines.
▶▶ The data and notes contained herein must be adhered to.
▶▶ Before finalizing your design, request a binding installation drawing.
▶▶ Not all variants of the product are approved for use in
safety functions according to ISO 13849. Please consult
the responsible contact person at Bosch Rexroth if you
require reliability parameters (e.g. MTTFd) for functional
safety.
Ports
Standard
Thread size
Maximum permissible
Required
tightening torque
tightening torque of the
of the female threads M G max threaded plugs MV
DIN 3852-1
M14 x 1,5
80 Nm
35 Nm
6 mm
M18 x 1,5
140 Nm
60 Nm
8 mm
S8 shape W
50 Nm
40 Nm
19 mm external hexagon of the fitting
DIN 3853
Bosch Rexroth AG
Mobile Applications
An den Kelterwiesen 14
72160 Horb a.N., Germany
Tel. +49 7451 92-0
[email protected]
www.boschrexroth.com/brm
Bosch Rexroth AG, RE 92060/04.2014
WAF
Hexagon socket for the threaded plugs
© This document, as well as the data, specifications and other information
set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be
reproduced or given to third parties without its consent. 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 information given does not release the user from the
obligation of own judgment and verification. It must be remembered that our
products are subject to a natural process of wear and aging.

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