Variants With Parallel Operation Of The Output Stages - Bosch Rexroth RA 10 Series Instruction Manual

Connection variant 8
Setpoint value specification
by joystick
Input signal
0.5 ... 4.5 V
Working range
Channel 1: 2.5 ... 4.5 V
Channel 2: 0.5 ... 2.5 V
Notice:
The stated values
for R1 and R2 may vary
since the voltage at pin 16
(8.4 V) is within tolerance
and also depends on the
sum R1+R2.
The sum of R1 and R2 must
be within a range of 2 kΩ
and 5 kΩ
Connection variant 9
Parallel operation
Control of both channels
using one potentiometer
Potentiometer between
8.4 V and 4.0 V connected.
Input signal
4.0 ... 8.4 V.
USETPOINT
R1
(2.4 kΩ
UST
R2
(1 kΩ
Fig� 30: Connection variant 8
Monitoring of cable break is not possible with this variant.
Due to the reduced signal stroke of 2 V in both directions, the maximum current
may not be reached.
7�5�3 Variants with parallel operation of the output stages
With the following variants, the two channels are simultaneously controlled by
a common signal source.
U Batt
Fig� 31: Connection variant 9
Installation | Analog amplifier RA
16
8.4V
Channel 1
Setpoint
Output stage
4
+
+
17
-
-
u
processing
3 i
4.0V
2
Solenoid 1
23
8.4V
Channel 2
Setpoint
Output stage
10
+
+
22
-
-
u
processing
11
i
4.0V
12
Solenoid 2
8.4V
Channel 1
Setpoint
Output stage
processing
4.0V
Solenoid 1
8.4V
Channel 2
Output stage
Setpoint
processing
4.0V
Solenoid 2
9
Parallel operation
RE 95230-B/2021-12-01, Bosch Rexroth AG
IM1
IM1
0.5V 2.5V
USETPOINT
IM2
IM2
0.5V 2.5V
USETPOINT
37/48
4.5V
4.5V