Chapter 4 – Programming
ACS/ACH 400 Direct N2 Bus Interface
4-9
Fault Queue
The ACS/ACH 400 has a fault queue which
records the latest three faults. This queue can
be read using the Analog Input points 13 - 15.
Faults
Faults are abnormal situations detected by the
drive, which cause the drive to fault. The fault
information is both displayed on the drive panel
and is placed into the fault queue.
To get a more detailed description of the
corresponding faults see the appropriate ACS/
ACH 400 drive User’s Manual.
Table 4-2 “Drive Faults” lists the fault code
numbers which correspond to the faults in the
fault queue parameters.
Table 4-2 Drive Faults
Code
Message
Description
FL 1
OVERCURRENT
Overcurrent:
• Possible mechanical problem.
• Acceleration and/or deceleration times may be too
short.
• Power supply disturbances.
FL 2
DC
OVERVOLTAGE
DC overvoltage:
• Input voltage too high.
• Deceleration time may be too short.
FL 3
ACS400 or
ACH400
OVERTEMP
ACS/ACH 400 overtemperature:
• Ambient temperature too high.
• Severe overload.
FL 4
*
SHORT CIRCUIT
Fault current:
• Short circuit.
• Power supply disturbances.
FL 5
OUTPUT
OVERLOAD
Output overload.
FL 6
DC
UNDERVOLTAGE
DC undervoltage.
FL 7
ANALOG INPUT 1
Analog input 1 fault. Analog input 1 value is less than
MINIMUM
AI1 (1301). See also parameter 3001
AI
<
MIN
FUNCTION
.
FL 8
ANALOG INPUT 2
Analog input 2 fault. Analog input 2 value is less than
MINIMUM
AI2 (1304). See also parameter 3001
AI
<
MIN
FUNCTION
.
FL 9 MOTOR
OVERTEMP
Motor overtemperature. See parameters 3004-3008.
Содержание ACH 400
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