Bosch rexroth VM350 Betriebsanleitung Seite 36

36/48 Bosch Rexroth AG
Product description
Hand-held tightening spindles:
S1
24V
CW / CCW
1 mm
S1
Fig. 6:
Switch S1:
We recommend the use of a position switch, e.g.
Telemecanique ZCK-M8. Connect the signal "CW"
to the digital input CW(clockwise tightening) of
the SE352 or to one of the digital inputs FOxCW
(Fastening Operation No. x clockwise) of the
KE350 communication unit. Inspect the S1 switch
at regular intervals according to the device
description. Safety-relevant cables that are
moveable must be short-circuit and cross-fault
proof.
The servo amplifier contactor is directly
integrated into the system's emergency OFF
circuit. The connection to the VM350 is
interrupted if the emergency OFF switch is
activated. System errors of error classes 3 and 4
may then occur. However, this disruption is
intentional, as the emergency OFF switch is only
activated in case of actual danger.
23
24
S1
VM350 | 3609929B32/2021-09
The PLC or the switch on the hand-held
nutrunner sends a Cw/Ccw signal. In this case,
the Cw/Ccw signals can also be sent via a bus
system.
The solution with separated emergency OFF
wiring is always preferred. It is required for
nutrunners without a measurement transducer.
If stricter safety measures must be followed due
to circumstances caused by the system (e.g.
special machinery directives), the emergency
OFF concept must be taken into consideration
separately, in conjuction with the nutrunners.