Lenze 8200 series - Manual (Page 60)

Troubleshooting and fault elimination
8-2 UOMu_^MVMO
8.1.3 Maloperation of the drive
Maloperation Possible causes
Motor does not rotate D DC-bus voltage too low
(red LED is blinking every 0.4 s; message LU is displayed)
D Controller inhibited
(green LED is blinking, display of the operating module: OFF,
STOP or AS_LC)
D Setpoint = 0
D DC braking active
D Quick-stop function active
D JOG setpoint activated and JOG frequency = 0
D Fault is indicated (see chapter 8.3 )
D Mechanical motor brake is not released
Motor does not rotate
smoothly
D Defective motor cable
D Maximum current C022 and C023 too low
D Motor underexcited or overexcited (check parameter setting)
Current consumption of
motor too high
D Setting of C016 too high
D Setting of C015 too low
D C088 and C091 are not adapted to the motor data.
8.2 Fault analysis using the history buffer
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Structure of the history buffer
Code C0168 Entry Note
C161 Memory locations 1 Active fault
If the fault is no longer active or has been
acknowledged:
C162 Memory location 2 Last fault
acknowledged:
D
The contents of the memory locations 1-3 will be
saved in a ”higher” location
C163 Memory location 3 Last but one fault
saved in a ”higher” location.
D The contents of the memory location 4 will be
eliminated from the history buffer and cannot be
C164 Memory location 4 Last but two fault
y
eliminated from the history buffer and cannot be
read any longer.
D Memory location 1 will be deleted (= no active fault).
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