ENGLISH
17
Troubleshooting and fault elimination
Status Cause Remedy
e.g.
Present output frequency Trouble free operation
O
Stop
(outputs U, V, W inhibited)
LOW signal at terminal 28 Set terminal 28 to HIGH
Output frequency = 0 Hz
(outputs U, V, W inhibited)
Setpoint = 0 Hz (C31 = 0) Setpoint selection
Quick stop activated through digital
input
Deactivate Quick stop
DC-injection brake active DC-injection brake activated
• via digital input
• automatically
Deactivate DC-injection brake
• digital input = LOW
• automatically after holding time
c06 has expired
L
Current limit reached Controllable overload Automatically (see C22)
Undervoltage on DC bus Mains voltage too low Check mains voltage
d
Overvoltage on DC bus during
deceleration (warning)
Excessively short deceleration time
(C13, c03)
Automatically if overvoltage
< 1 s, , if overvoltage > 1 s
n
No access to code Can only be changed when the
controller is in O
Set terminal 28 to LOW
Error Cause Remedy
(1)
Data on EPM not valid
Data not valid for controller
• Use EPM providing valid data
• Load Lenze setting
Data error
OEM data not valid
EPM error EPM missing or defective Power down and replace EPM
Digital inputs not
uniquely assigned
E1...E3 assigned with the same
digital signals
Each digital signal can only be
used once
Either just “UP” or “DOWN” used Assign the missing digital signal to
a second terminal
External error Digital input “TRIP set” is active Remove external error
J
Internal fault Please contact Lenze
L
Automatic start inhibited c42 = 0 LOW-HIGH signal change at
terminal 28
0
Short-circuit or overload Short-circuit Find reason for short-circuit; check
motor cable
Excessive capacitive charging
current of the motor cable
Use shorter motor cables with lower
charging current
Acceleration time (C12, c01) too
short
• Increase acceleration time
• Check controller selection
Defective motor cable Check wiring
Internal fault in motor Check motor
Frequent and long overload Check controller selection
5 Troubleshooting and fault elimination
(1) The drive can only be restarted if the error message has been reset; see c70
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