Danfoss VLT ISD 410, Руководство по эксплуатации

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9 Faults
If faults occur during servo system operation, they are
indicated on the front panel of the connection box. See
the connection box operating instructions for information
on error message codes.
First use Table 9.1 to check the possible causes of the fault.
NOTE
If the fault cannot be eliminated by one of the measures
listed, notify Danfoss Service.
Have the following information available to enable Danfoss
to provide help quickly and effectively:
•
Type number
•
Error message number
•
Firmware version
9.1 Troubleshooting
When problems occur in the servo system, they must first
be located and properly identified.
Table 9.1 lists potential
faults in the servomotor, their possible causes, and actions
for correcting the faults.
Fault Possible Cause Possible Solution
Motor overheats (high
surface temperature) Excessive load Check torques
Motor not running No drive Check CAN
connection
Motor does not run or
only starts up slowly or
with difficulty Bearing wear Check bearings and
shaft
Motor hums and draws
high current Motor defective Contact Danfoss
Motor stops suddenly
and does not restart No drive Check CAN
connection
Wrong motor rotation
direction Parameter error
•
Check software
•
Change rotation
direction if
appropriate
Motor runs normally,
but does not generate
the expected torque Motor defective
or parameter error Contact Danfoss
Motor runs in an
uncontrolled manner in
one direction at
maximum speed Incorrect setpoints Check software
Fault Possible Cause Possible Solution
Motor runs slowly in
one direction, but
cannot be controlled by
the master Software error Check software
Motor screaming Incorrect
calibration or
faulty current
measurement Contact Danfoss
Uneven running Defective bearing Check shaft
Vibration Defective bearing Check shaft
(Unusual) running
noises Defective bearing Check shaft
Fuses blow, circuit
breaker trips or motor
protection trips
immediately Short circuit Contact Danfoss
Motor speed drops
sharply under load At current limit Check application
Brake does not release Brake control
defective Contact Danfoss
Holding brake does not
hold the servomotor Mechanical brake
defective Contact Danfoss
Brake engagement
delayed Software error Contact Danfoss
Noises when power-off
brake engaged Mechanical brake
damaged Contact Danfoss
Table 9.1 Troubleshooting Overview
Faults
VLT
®
ISD 410 Servomotor Operating Instructions
32 MG75D102 - VLT
®
is a registered Danfoss trademark
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