Diagnostics - ABB ACS 400 User Manual

Diagnostics

The ACS 400 alarms and faults are described in Table 5 and Table 6 respectively. The ACS100-PAN
control panel displays only the alarm and fault codes. The alarm and fault messages are displayed
only by the ACS-PAN-A control panel.
Alarms AL1-7 arise from button operation. The green LED blinks for faults greater than AL7,
indicating the ACS 400 cannot follow the control command.
Table 5 Alarms.
Code Message
AL 1 OPERATION FAILED
AL 2 START ACTIVE
AL 3 LOCAL/REMOTE
AL 5 BUTTON DISABLED
AL 6 PARAMETER LOCK
AL 7 FACTORY MACRO
AL10 OVERCURRENT
AL11 OVERVOLTAGE
AL12 DC UNDERVOLTAGE Undervoltage controller active.
AL13 DIRECTION LOCK
AL14 SERIAL COMM LOSS Serial communication loss alarm.
AL15 MODBUS EXCEPTION Modbus exception response is sent through serial communication.
AL16 AI1 LOSS
AL17 AI2 LOSS
AL18 PANEL LOSS
AL19 ACS400 OVERTEMP
AL20 MOTOR OVERTEMP
AL21 UNDERLOAD
AL22 MOTOR STALL
AL23 DDCS COMM LOSS
AL24
AL25 MANUAL OFF
AL26 OUTPUT OVERLOAD If the load is not reduced, the drive will soon trip due to OUTPUT
AL27 AUTOMATIC RESET
AL28 PID SLEEP ACTIVE
ACS 400 User's Manual
Description
Parameter upload/download failed.
Operation not allowed while start is active.
Operation not allowed in current control mode (Local or Remote).
Start/Stop/Direction or reference from control panel is not followed.
Possible causes:
• Remote mode: parameters disable the buttons (see APPENDIX).
• Local mode: START/STOP button interlocked from digital inputs.
• Local mode: Shaft direction is fixed by parameter 1003
Operation not allowed. Parameter 1602
is active.
LOCAL LOCK
Use of factory macro disables operation.
Overcurrent controller active.
Overvoltage controller active.
Direction lock. See parameter 1003
Analog input 1 loss. Analog input 1 value is less than
(1301). See parameter 3001
Analog input 2 loss. Analog input 2 value is less than
(1306). See parameter 3001
Panel loss. Panel is disconnected when Start/Stop/Dir or reference is
coming from panel. See parameter 3002 and APPENDIX.
Hardware overtemperature (at 95 % of the trip limit).
Motor overtemperature (at 95 % of the trip limit).
Motor underload alarm.
Stall alarm.
DDCS link loss alarm.
Reserved.
Reference is not followed (1605
OVERLOAD fault (FL5).
The drive has stopped due to a fault but will attempt to restart
automatically. See parameter Group 31.
The PID sleep feature has stopped the drive. The drive will restart
automatically if the PID wake-up conditions are satisfied.
PARAMETER LOCK
.
DIRECTION
< .
AI MIN FUNCTION
< .
AI MIN FUNCTION
=1).
LOCAL LOCK
.
DIRECTION
or 1605
AI1
MINIMUM
AI2
MINIMUM
35