ABB ACH550-02-602A-4 [222/454] Group 17 override

ABB ACH550-02-645A-4 [222/454] Group 17 override
218 Parameter listing and descriptions
ACH550-02 User's Manual
Group 17: OVERRIDE
This group defines the source for the override activation signal,
the override speed/frequency and pass code and how the
override is enabled and disabled.
The override feature can be used e.g. in fire situations.
When the override DI is activated, the drive stops and then
accelerates to the preset speed or frequency. When the DI is
deactivated, the drive stops and reboots. If the start command,
Run enable and Start enable are active in the AUTO mode, the
drive starts automatically and continues normally after override
mode. In the HAND mode, the drive returns to the OFF mode.
When override is active:
Drive runs at preset speed.
Drive ignores all keypad commands.
Drive ignores all commands from communication links.
Drive ignores all digital inputs except override activation/
deactivation, Run enable and Start enable.
Drive displays alarm message “2020 OVERRIDE”.
The following faults are ignored:
3 DEV OVERTEMP
6 DC UNDERVOLT
7 AI1 LOSS
8 AI2 LOSS
9MOT OVERTEMP
10 PANEL LOSS
12 MOTOR STALL
14 EXT FAULT 1
15 EXT FAULT 2
18 THERM FAIL
21 CURR MEAS
22 SUPPLY PHASE
24 OVERSPEED
28 SERIAL 1 ERR
29 EFB CON FILE
30 FORCE TRIP
31 EFB 1

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