Troubleshooting and fault elimination
Maloperation of the drive
12
l
EDK82EVXXX EN 2.0
3
Troubleshooting and fault elimination
3.1
Maloperation of the drive
Fault
Cause
Remedy
Motor does not rotate
DC-bus voltage too low
(Red LED is blinking every 0.4 s;
keypad display
LU
)
Check mains voltage
Controller inhibited
(Green LED is blinking, keypad display:
,
)
Remove the controller inhibit, controller inhibit can be set
through several sources
Automatic start inhibited (C0142 = 0 or 2)
LOW-HIGH signal at X3/28
If necessary, correct start condition (C0142)
DC injection brake active (DCB)
Deactivate DC injection brake
Mechanical motor brake is not released
Manual or electrical release of mechanical motor brake
Quick stop (QSP) active (keypad display:
,
)
Remove quick stop
Setpoint = 0
Setpoint selection
JOG setpoint activated and JOG frequency = 0
JOG setpoint selection (C0037 ... C0039)
Active fault
Eliminate fault
Wrong parameter set active
Change to correct parameter set via terminal
Control mode C0014 = -4-, -5-, but no motor parameter identification
Motor parameter identification (C0148)
Under C0410 several functions which exclude each other, are assigned
to the same signal source.
Correct configuration in C0410
Use internal voltage source X3/20 for function modules Standard I/O,
INTERBUS, PROFIBUS-DP or LECOM-B (RS485):
Bridge between X3/7 and X3/39 is missing
Bridge terminals
Motor does not rotate
Defective motor cable
Check motor cable
Motor does not rotate
smoothly
Maximum current set too low (C0022, C0023)
Adaptation to the application
y
Motor underexcited or overexcited
Check parameter setting (C0015, C0016, C0014)
C0084, C0087, C0088, C0089, C0090, C0091 and/or C0092 are not
adapted to the motor data
Manual adaptation or identification of motor parameters
(C0148)
Current consumption of
Setting of C0016 too high
Correct setting
Current consumption of
motor too high
Setting of C0015 too low
Correct setting
g
C0084, C0087, C0088, C0089, C0090, C0091 and/or C0092 are not
adapted to the motor data
Manual adaptation or identification of motor parameters
(C0148)
Motor rotates, setpoints are
“0”
With the function
3
of the keypad a setpoint has been selected.
Set the setpoint to ”0” by C0140 = 0
Motor parameter
identification stops with
Motor too small compared with rated power
identification stops with
error LP1
DC brake active via terminal
Unacceptable drive response
with vector control
various
Vector control optimisation
Torque dip in the field
weakening range
various
Contact Lenze
Stalling of the motor when
operating in the field
weakening range
