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Table 2 Faults.
Code
Description
FL 1
Overcurrent:
• Possible mechanical problem.
• Acceleration and/or deceleration times may be too short.
• Supply disturbances.
FL 2
DC overvoltage:
• Input voltage too high.
• Deceleration time may be too short.
FL 3
ACS 140 overtemperature:
• Ambient temperature too high.
• Severe overload.
FL 4 *
Fault current:
• Output earth fault (200 V units).
• Short circuit.
• Supply disturbances.
FL 5
Output overload.
FL 6
DC undervoltage.
FL 7
Analogue input 1 fault. Analogue input 1 value is less than
AI1 (1301). See also parameter 3001
FL 8
Analogue input 2 fault. Analogue input 2 value is less than
AI2 (1304). See also parameter 3001
FL 9
Motor overtemperature. See parameters 3004-3008.
FL10
Panel loss. Panel is disconnected when Start/Stop/Dir or reference is
coming from panel. See parameter 3002
Note! If FL10 is active when the power is turned off, the ACS 140 will
start in remote control (REM) when the power is turned back on.
FL11
Parameters inconsistent. Possible fault situations:
•
MINIMUM
•
MINIMUM
•
MINIMUM FREQ
FL12
Motor stall. See parameter 3009
FL13
Serial communication loss.
FL14
External fault is active. See parameter 3003
FL15
Output earth fault (400 V units).
FL16 *
DC bus ripple too large. Check supply.
FL17
Analogue input out of range. Check input voltage.
FL18 - FL22 * Hardware error. Contact supplier.
Full display
Serial link failure.
blinking
• Bad connection between the control panel and the ACS 140.
• Serial communication parameters (group 52) have been altered.
Keep panel connected and switch power off and then on again.
Note! Faults (*) that are indicated by a red blinking LED are reset by turning
the power off and on. Other faults are reset by pressing the START/STOP
button. See also parameter 1604.
AI1 >
AI1 (parameters 1301 and 1302)
MAXIMUM
AI2 >
AI2 (parameters 1304 and 1305)
MAXIMUM
>
MAXIMUM FREQ
<
AI
MIN FUNCTION
<
AI
MIN FUNCTION
PANEL LOSS
(parameters 2007 and 2008)
.
STALL FUNCTION
EXTERNAL FAULT
MINIMUM
.
MINIMUM
.
and APPENDIX.
.
7
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