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 d oes not rotate DC-bus voltage too low
(Red LED is blinking ever y 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 o r 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 f ault
Wrong parameter set active Change to correct parameter set via terminal
Control mode C0014 = -4-, -5-, but no motor parameter identification Motor parame t e r identificatio n (C0148)
Under C0410 several f unctions which exclude each other, a re 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 L ECOM-B (RS485):
Bridge between X3/7 and X3/39 is missing
Bridge terminals
Motor d oes not rotate Defective motor cable Check motor cable
smoothly
Maximum current set t oo low (C0022, C0023) Adaptation to the application
Motor underexcited or overexcited Check parameter setting (C0015, C0016, C0014)
C0084, C0087, C0088, C0089, C0090, C0091 a nd/or C0092 are not
adapted t o the motor data
Manual adaptation or identification of motor parameters
(C0148)
Current consumption of Setting of C0016 to o high Correct setting
motor too high
Sett ing of C0015 t o o low Correct setting
C0084, C0087, C0088, C0089, C0090, C0091 a nd/or C0092 are not
adapted t o 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. S e t t he setpoint to ”0” by C0140 = 0
Motor parameter
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 o ptimisation
Torque dip in the field
weakening range
various Contact Lenze
Stalling of th e motor when
operatinginthefield
weakening range