Bosch Rexroth RA2-1/10 - 7.5.2 Variants with independent circuitry

36/48 Analog amplifier RA | Installation
BoschRexrothAG, RE95230-B/2021-12-01
+
-
IM1
u
i
IM1
+
-
8.4V
4.0V
16
4
17
3
2
0V 10.0V
R
R
approx.
5 kΩ
(23)
(10)
(22)
(11)
(12)
Wiring in connector
Channel 1
Setpoint
processing
Output stage
Solenoid 1
USETPOINT1
USETPOINT1
Fig� 28: Connection variant 6
Monitoring of cable break is not possible with this variant.
7�5�2 Variants with independent circuitry
Parallel operation
9
U
Batt
Wiring in connector
Channel 2
Setpoint
processing
Output stage
Solenoid 2
Channel 1
Setpoint
processing
Output stage
Solenoid 1
8.4V
4.0V
8.4V
4.0V
8.4V
4.0V
4.0V
Fig� 29: Connection variant 7
Monitoring of cable break is not possible with this variant.
Connection variant 6
Setpoint value specification
by control
Input signal
0 ... 10 V
Working range
0 ... 10 V
R: Resistances with identical
values (between 5.6 kΩ and
6.2 kΩ)
Connection variant 7
Parallel operation
Separate control with
separate potentiometers
and mutual influencing
Potentiometer between
8.4 V and 4.0 V connected.
Input signal
4.0 ... 8.4 V.
Alternative circuit
proposal
Advantage: fewer lines