Lenze SMD 0-25kW-4-0kW - Manual (Page 20)

18 Lenze 13435747 EDBSX03 v17 EN, DE, FR, IT, ES
Troubleshooting and fault elimination
Status Cause Remedy
e.g.
50.0
Present output frequency Trouble free operation
OFF Stop
(outputs U, V, W inhibited)
LOW signal at terminal 28 Set terminal 28 to HIGH
stP 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
br 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
CL Current limit reached Controllable overload Automatically (see C22)
LU Undervoltage on DC bus Mains voltage too low Check mains voltage
dEC Overvoltage on DC bus during
deceleration (warning)
Excessively short deceleration time
(C13, c03)
Automatically if overvoltage
< 1 s,
OU , if overvoltage > 1 s
nEd No access to code Can only be changed when the
controller is in
OFF
Set terminal 28 to LOW
Error Cause Remedy (1)
cF
Data on EPM not valid
Data not valid for controller
• Use EPM providing valid data
• Load Lenze setting
CF Data error
GF OEM data not valid
F1 EPM error EPM missing or defective Power down and replace EPM
CFG 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
EEr External error Digital input “TRIP set” is active Remove external error
F2...F0,
JF
Internal fault Please contact Lenze
LC Automatic start inhibited c42 = 0 LOW-HIGH signal change at
terminal 28
0C1 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