Lenze E931E Series Hardware Manual page 41

Red LED is Red LED is
blinking blinking
6x
5x
4x
3x
2x
1x
GHB 13.0001−EN EN 3.0
efesotomasyon.com - Lenze
Troubleshooting and fault elimination
Reaction Cause Cause
A h W O
þ
− − − Overcurrent / short
circuit
þ
− − − System error
þ ¨
− − Overtemperature drive
controller
þ ¨ ¨ ¨
Overtemperature motor
þ ¨ ¨ ¨
Undervoltage in the DC
bus
¨ ¨ þ ¨
MMC not connected
l
Error message
Remedy Remedy
Check motor cable and motor phases with
regard to a short circuit of the phases or
the drive
Switch off and then reconnect control
voltage. If the error re−occurs, send in the
drive.
l
Check correct mounting in the control
cabinet:
– Heatsink has to fit extensively to the
housing of the control cabinet.
– Are further heat sources mounted
near the drive controller, bringing
about an increased ambient
temperature of the inverter?
l
Check whether the ventilation slots of
the drive controller are soiled or
blocked. If required, clean.
l
Optimise controller settings (bad
settings result in an unnecessary
heating). (, 931E Software Manual)
l
Check resolver adjustment. (, 931E
Software Manual)
l Reduce load torque of the motor.
l
Check whether the motor cooling via
the motor housing is prevented by
deposits, etc.(if required, cleaning of the
motor).
l
Are there further heat sources near the
motor, bringing about an additional
increase in the predominant ambient
temperature, and thus contributing to a
diminution of the dissipation of lost
heat?
l
Check controller settings, bad settings
result in an unnecessary heating.
(, 931E Software Manual)
l Reduce load torque of the motor.
l
Check setting of the thermal sensor.
l
Check resolver cable or encoder cable
with regard to open circuit.
l
Check resolver adjustment. (, 931E
Software Manual)
l
Check DC−bus voltage, if required,
adjust undervoltage trigger level.
(, 931E Software Manual)
l Check setting of multimedia card
(MMC).
l
Connect MMC.
l
Change setting of the error tracking
system by means of the
parameterisation software.
7
41