OPERATION
PRODUCT
ACS6000
DOCUMENT KIND
User manual
DOCUMENT ID.
3BHS212794 E01
REV.
N
LANG.
en
PAGE
181/266
8.10.2. Stopping the drive with the emergency-off function
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 discharged, 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 control panel
(Fig. 8-2) and features a latching switch action.
IMPORTANT! Pressing the EMERGENCY-OFF push button does not disconnect the
auxiliary power supply from the drive.
For more information, see “Emergency off/stop modes and prevention of
operation & safe torque off” (3BHS196243).
8.10.3. Initiating an emergency-off
When an emergency-off is initiated during operation, the following sequence of
events occurs:
1) MCB opens
2) Drive system coasts down
3) DC-link of the drive discharges
4) Status line indication of the CDP control panel alternates between
EmergencyOff and NotReadyOn.
5) EMERGENCY-OFF RESET button flashes
6) SUPPLY OFF push button flashes
An emergency-off is initiated by pressing the EMERGENCY-OFF push
button on the door of the drive control unit or an external
EMERGENCY-OFF push button (if present) linked to the
emergency-off circuit.
Alternating display message:
– EmergencyOff
– NotReadyOn
1 L -> 600.0 rpm
StateINU EmergencyOff
MOTOR SP 0.00 rpm
POWER 0.0 kW
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