Lenze SMD Serie Instructions De Mise En Service page 20

Troubleshooting and fault elimination
5 Troubleshooting and fault elimination
Status
e.g.
Present output frequency
50.0
Stop
OFF
(outputs U, V, W inhibited)
Output frequency = 0 Hz
stP
(outputs U, V, W inhibited)
br DC-injection brake active
Current limit reached
CL
LU Undervoltage on DC bus
dEC Overvoltage on DC bus during
deceleration (warning)
No access to code
nEd
Error
cF
CF
Data on EPM not valid
GF
EPM error
F1
CFG Digital inputs not
uniquely assigned
EEr External error
Internal fault
F2...F0,
JF
LC Automatic start inhibited
Short-circuit or overload
0C1
(1) The drive can only be restarted if the error message has been reset; see c70
18
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Cause
Trouble free operation
LOW signal at terminal 28
Setpoint = 0 Hz (C31 = 0)
Quick stop activated through digital
input
DC-injection brake activated
• via digital input
• automatically
Controllable overload
Mains voltage too low
Excessively short deceleration time
(C13, c03)
Can only be changed when the
controller is in OFF
Cause
Data not valid for controller
Data error
OEM data not valid
EPM missing or defective
E1...E3 assigned with the same
digital signals
Either just "UP" or "DOWN" used
Digital input "TRIP set" is active
c42 = 0
Short-circuit
Excessive capacitive charging
current of the motor cable
Acceleration time (C12, c01) too
short
Defective motor cable
Internal fault in motor
Frequent and long overload
Lenze 13435747 EDBSX03 v17 EN, DE, FR, IT, ES
Remedy
Set terminal 28 to HIGH
Setpoint selection
Deactivate Quick stop
Deactivate DC-injection brake
• digital input = LOW
• automatically after holding time
c06 has expired
Automatically (see C22)
Check mains voltage
Automatically if overvoltage
OU
< 1 s, , if overvoltage > 1 s
Set terminal 28 to LOW
Remedy
(1)
• Use EPM providing valid data
• Load Lenze setting
Power down and replace EPM
Each digital signal can only be
used once
Assign the missing digital signal to
a second terminal
Remove external error
Please contact Lenze
LOW-HIGH signal change at
terminal 28
Find reason for short-circuit; check
motor cable
Use shorter motor cables with lower
charging current
• Increase acceleration time
• Check controller selection
Check wiring
Check motor
Check controller selection