Diagnostic Displays; Resetting The Drive From The Control Panel - ABB ACS 400 User Manual

Diagnostic Displays

When the red LED of the ACS 400 is on or blinking, a fault is active. The relevant fault message
flashes in the panel display.
When the green LED of the ACS 400 is blinking, an alarm is active. The relevant alarm message is
shown in the panel display. Alarms 1-7 arise from button operation and green LED does not blink for
them.
The alarm and fault messages disappear when MENU, ENTER or the arrow buttons of control panel
are pressed. The message will reappear after a few seconds if the keypad is not touched and alarm
or fault is still active.
fault code alarm code
Figure 35 Fault and alarm messages.
Refer to Diagnostics section for complete list of alarms and faults.

Resetting the Drive from the Control Panel

To reset a fault when the red LED is on, press the START/STOP button.
Caution! Resetting the fault may start the drive when in remote control.
To reset a fault when the red LED is blinking, turn the power off.
Caution! Turning the power on again may start the drive immediately.
38 ACS 400 User's Manual