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Diagnostics
The control panel displays the following alarm and fault codes.
Alarms AL1-7 arise from button operation. Green LED blinks for AL10-21,
meaning that the ACS 140 cannot fully follow the control commands.
Table 1 Alarms.
Code
Description
AL 1
Parameter upload/download failed.
AL 2
Operation not allowed while start is active.
AL 3
Operation not allowed in current control mode (Local or Remote).
AL 5
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.
AL 6
Operation not allowed. Parameter 1602
AL 7
Use of factory macro disables operation.
AL10
Overcurrent controller active.
AL11
Overvoltage controller active.
AL12
Undervoltage controller active.
AL13
Direction lock. See parameter 1003
AL14
Serial communication loss alarm.
AL15
Modbus exception response is sent through serial communication.
AL16
Analogue input 1 loss. Analogue input 1 value is less than
(1301). See also parameter 3001
AL17
Analogue input 2 loss. Analogue input 2 value is less than
(1306). See also parameter 3001
AL18
Panel loss. Panel is disconnected when Start/Stop/Dir or reference is
coming from panel. See parameter 3002
AL19
Hardware overtemperature (at 95 % of the trip limit).
AL20
Motor overtemperature (at 95 % of the trip limit).
AL21
Motor stall alarm. See parameter 3009
6
PARAMETER LOCK
.
DIRECTION
<
.
AI
MIN FUNCTION
<
.
AI
MIN FUNCTION
PANEL LOSS
STALL FUNCTION
is active.
AI1
MINIMUM
AI2
MINIMUM
and APPENDIX.
.
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