Troubleshooting And Fault Elimination; Troubleshooting - Lenze 8200 motec Series Mounting Instructions

7

Troubleshooting and fault elimination

7.1

Troubleshooting

Maloperation Cause
Motor does not rotate DC−bus voltage too low
(red LED is blinking every 0.4 s;
keypad displays: LU)
Controller inhibited
(Green LED is blinking, keypad display: c)
Automatic start inhibited (C0142 = 0 or 2)
DC−injection braking (DCB) active
Mechanical motor brake is not released
Quick stop (QSP) active (keypad display: c)
Setpoint = 0
JOG setpoint activated and JOG frequency = 0
Fault active
Incorrect parameter set active
Operating mode C0014 = −4−, −5− set, but no motor
parameter identification
Assignment of several functions excluding each other to
one signal source in C0410
Use of internal voltage source X3/20 for the function
modules Standard I/O, INTERBUS, PROFIBUS−DP, or
LECOM−B (RS485):
No jumper between X3/7 and X3/39
Motor does not rotate
Motor cable defective
smoothly
Maximum current set too low (C0022, C0023)
Motor is under− or overexcited
C0084, C0087, C0088, C0089, C0090, C0091 and/or
C0092 not adjusted to the motor data
Current consumption of Setting of C0016 too high
motor too high
Setting of C0015 too low
C0084, C0087, C0088, C0089, C0090, C0091 and/or
C0092 not adjusted to the motor data
Motor rotates, setpoints A setpoint has been specified by the use of the function
j of the keypad
are 0"
Motor parameter
Motor is too small in relation to the rated power of the
identification stops with drive
error LP1
DC injection brake (DCB) active via terminal
Unacceptable drive Various
behaviour with vector
control
Torque dip in the field Various
weakening range
Stalling of the motor
when operating in the
field weakening range
EDK82MV752 DE/EN/FR 7.2
Troubleshooting and fault elimination
l
Troubleshooting
Remedy
Check mains voltage
Deactivate controller inhibit, controller
inhibit can be set via several sources
LOW−HIGH edge at X3/28
If necessary, correct starting condition
(C0142)
Deactivate DC injection brake
Manual or electrical release of mechanical
motor brake
Deactivate quick stop
Select setpoint
Select JOG setpoint (C0037 ... C0039)
Eliminate fault
Change to correct parameter set via terminal
Identify motor parameters (C0148)
Correct configuration in C0410
Jumper terminals
Check motor cable
Adjust settings to the application
Check parameter setting (C0015, C0016,
C0014)
Adjust codes manually or identify motor
parameters (C0148); optimise vector control
Correct setting
Correct setting
Adjust codes manually or identify motor
parameters (C0148); optimise vector control
Set setpoint to "0" with C0140 = 0
Optimising the vector control
Contact Lenze
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