Bosch Rexroth SB24/34 - Page 31

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RE 66170-B/2019-05-15, Control block SB24/34, Bosch Rexroth AG
Individual pressure compensator : Controls the valve-internal inlet flow of the
block-internal channel P. The integrated non-return valve function prevents the
return flow to the block-internal channel P.
Electrohydraulic EHS actuating unit
: Control is realized at port via CAN
bus pilot signal. The received CAN bus pilot signals are converted to respective
deflection of the control spool.
• Single-acting (sa):
Controls the inlet flow to working port
and return via the return flow port
• Single-acting (sa) with internal return flow:
Controls the inlet flow and return flow via working port
.
Port
is plugged by threaded plug .
• Double-acting (da):
Controls the inlet flow and return flow via working ports
and .
Check valve
: Prevents valve-internal return flow in working port .
Shuttle valve
: Directs the higher LS pressure through the control block/control
block segment.
Secondary pressure relief valve
: Limits the operating pressure in working
port
.
Control is realized via CAN bus pilot signal
.
Secondary pressure relief valve
optionally with manual auxiliary actuation .
EHR24-EHS sa for external return flow
Internal function
Operation / control
Fluid plan