Danfoss VLT DriveMotor FCP 106 Programming Manual page 126

Diagnostics and Troubleshoo...
Check that parameter 1-93 Thermistor Source
selects terminal 53 or 54.
•
When using terminal 18, 19, 31, 32, or 33 (digital
inputs), check that the thermistor is connected
correctly between the digital input terminal used
(digital input PNP only) and terminal 50. Select
the terminal to use in parameter 1-93 Thermistor
Source.
WARNING/ALARM 13, Over current
The peak current limit of the frequency converter (approxi-
5 5
mately 145–177% of the frequency converter rated current)
is exceeded. The warning lasts approximately 1.5 s, then
the frequency converter trips and issues an alarm. Shock
loading or quick acceleration with high-inertia loads can
cause this fault. If the acceleration during ramp-up is quick,
the fault can also appear after kinetic back-up.
If extended mechanical brake control is selected, a trip can
be reset externally.
Troubleshooting
•
Remove the power and check if the motor shaft
can be turned.
•
Check that the motor size matches the frequency
converter.
•
Check that the motor data is correct in
parameters 1-20 to 1-25.
ALARM 14, Earth fault
There is current from the output phases to ground, either
in the cable between the frequency converter and the
motor or in the motor itself.
Troubleshooting
•
Remove power to the frequency converter and
repair the ground fault.
•
Check for ground faults in the motor by
measuring the resistance to ground of the motor
cables and the motor with a megohmmeter.
ALARM 16, Short circuit
There is short-circuiting in the motor or motor wiring.
Troubleshooting
•
Remove the power to the frequency converter
and repair the short circuit.
WARNING/ALARM 17, Control word timeout
There is no communication to the frequency converter.
The warning is only active when parameter 8-04 Control
Word Timeout Function is NOT set to [0] Off.
If parameter 8-04 Control Word Timeout Function is set to [5]
Stop and Trip, a warning appears, and the frequency
converter ramps down to a stop and shows an alarm.
Troubleshooting
•
Check the connections on the serial communi-
cation cable.
•
Increase parameter 8-03 Control Word Timeout
Time.
124
®
VLT DriveMotor FCP 106/FCM 106
•
•
ALARM 30, Motor phase U missing
Motor phase U between the frequency converter and the
motor is missing.
Troubleshooting
•
ALARM 31, Motor phase V missing
Motor phase V between the frequency converter and the
motor is missing.
Troubleshooting
•
ALARM 32, Motor phase W missing
Motor phase W between the frequency converter and the
motor is missing.
Troubleshooting
•
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
Table 5.6 is shown.
Troubleshooting
•
•
•
Note the code number before contacting the supplier or
Danfoss Service Department.
Code
num-
ber
0
256–
258
512–
519
783
1024–
1284
1379–
2819
2561 Replace control card
Danfoss A/S © 11/2015 All rights reserved.
Check the operation of the communication
equipment.
Verify that proper EMC installation was
performed.
Remove the power from the frequency converter
and check motor phase U.
Remove the power from the frequency converter
and check motor phase V.
Remove the power from the frequency converter
and check motor phase W.
Cycle power.
Check that the option is properly installed.
Check for loose or missing wiring.
Text Troubleshooting
Serial port cannot be Contact the supplier or
initialized. Danfoss Service
Department.
Power EEPROM data is Replace power card.
defective or too old.
Internal fault. Contact the supplier or
Danfoss Service
Department.
Parameter value outside of –
min/max limits
Internal fault. Contact the supplier or
Danfoss Service
Department.
Internal fault. Contact the supplier or
Danfoss Service
Department.
–
MG03N202