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Pressure and flow control system SYDFE1 series 2X, 3X
| Product description
Bosch Rexroth AG, Edition 10.2021, RE 30011-B
5.12 MASTER/SLAVE OPERATION
Circuitry of SYDFE1 for master/slave operation
Fig. 12: Circuitry of SYDFE1 for master/slave operation without independent individual operation
Theoretically, an optional number of SYDFE1 control systems can be hydraulically
coupled to achieve greater flows, if necessary.
In this case, it is just required to determine a master pump to which the pressure
transducer, if provided, has to be connected.
The master controls both, pressure and swivel angle, in accordance with the
externally provided command values and passes its actual swivel value (SWA
act
)
on to the slave pumps as swivel angle command value (SWA
comm
). This ensures
smooth and synchronous swiveling of the pumps.
Consequently, the slave pumps operate only under swivel angle control, which is
the reason why in this operating mode no pressure transducer signal may be fed to
their control electronics.
P
U
30a/32a U
B
30a/32a U
B
28a 0 V
28a 0 V
14c SWA
comm
14c SWA
comm
16c GND
16c GND
SWA
act
12c
6c p
comm
6c p
comm
4c GND
4c GND
8c p
act
- high
8c p
act
- high
10c p
act
- low
10c p
act
- low
Master
SWA
comm
(I)
p
comm
(I)
U
B
0 V
Slave
22a M0
22a M0
