Emergency-Off; Initiating An Emergency Off - ABB ACS5000 User Manual

8.9. Emergency-off

CAUTION
Pressing the EMERGENCY-OFF push button DOES NOT disconnect the
auxiliary power supply from the drive.
The drive is equipped with a hardwired emergency-off circuit. When an emergency
situation occurs during operation, this safety feature ensures that the drive
system can be disconnected without delay from the main power supply. When the
EMERGENCY-OFF push button has been pressed while the drive is at standstill, the
main power supply cannot be connected to the drive, hence the drive cannot be
started up.
The EMERGENCY-OFF push button of the drive is part of the local operator panel
(Fig. 8-1) and features a latching switch action.

8.9.1. Initiating an emergency off

To initiate an emergency stop, press the EMERGENCY-OFF push button on
the door of the control compartment, or, if present, an external
EMERGENCY-OFF push button that is linked to the emergency-off circuit.
When an emergency-off is initiated during operation, the following takes place:
– Main circuit breaker opens
– Drive coasts down
– DC link of the drive discharges
– Status line indication of the CDP control panel alternates between
EmergencyOff and NotReadyOn.
1 L ->
StateINU
MOTOR SP
POWER
– EMERGENCY-OFF RESET push button flashes.
– SUPPLY OFF push button flashes.
PRODUCT
ACS5000W
Hazardous voltage!
600.0 rpm
EmergeOff
0.00 rpm
0.0 kW
DOCUMENT KIND
User manual
Alternating display message:
– EmergeOff
– NotReadyOn
DOCUMENT ID.
3BHS799208 E01
OPERATION
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