E-Stop; Control Of Equipment Fan, Cabinet Fan And Motor Fan - Siemens SINAMICS DCM Betriebsanleitung

7.9

E-STOP

The E-STOP function is provided by a black mushroom pushbutton built into the cabinet door
that locks when pressed and can be unlocked by pulling. Further line-side E-STOP contacts
can be integrated into the signal chain via customer terminal block X2-3 -4.
The E-STOP function described in the Operating Instructions of the SINAMICS DCM DC
Converter in Chapter Description of Functions / safety shutdown (E-STOP). In the standard
configuration, the safety shut-down via E-STOP affects the field-circuit contactor and the
main contactor or the circuit breaker in the AC branch of the armature circuit.
Note
The E-STOP function is not an EMERGENCY OFF function in the sense of EN 60204-1.
7.10

Control of equipment fan, cabinet fan and motor fan

The fan of the converter (devices ≥ 600 A DC rated current), the fan of the converter cabinet
(if available) and the outgoing circuit for the motor fan or the outgoing circuit for the optional
2nd motor fan are all controlled via a binary output from the converter. The binary output
X71.19 .23 is therefore not available to the customer. The binary output controls a 24 V
contactor relay. The contactor relay switches the feeder for the converter or cabinet fan. The
contactor for the motor fan's feeder is switched via an auxiliary contact.
Each fan is monitored and protected by a separate motor circuit breaker. The signaling
contacts of the motor circuit breakers are combined in the group signal "m.c.b. trip combined
alarm signal". The function "Switch on auxiliary circuits" is used for control. The function
"Switch on auxiliary circuits" is described in the Operating Instructions of the SINAMICS
DCM DC Converter in Chapter Description of Functions / switching on auxiliary circuits.
SINAMICS DCM Cabinet
Operating Instructions, 04/2015, A5E36161239/RS-AA/001
Functions, monitoring and protective functions
7.9 E-STOP
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