Torque Limit - GE Ecomagination AF-600 FP Programming Manual

Troubleshooting
•
Ensure that the motor data in parameters P-02,
P-03, P-06, P-07, F-04, and F-05 are set correctly.
•
If an external fan is in use, check that it is
selected in parameter F-11 Motor External Fan.
•
Running Auto tune in parameter P-04 Auto Tune
tunes the frequency converter to the motor more
accurately and reduces thermal loading.
WARNING/ALARM 11, Motor thermistor over temp
4 4
Check whether the thermistor is disconnected. Select
whether the frequency converter issues a warning or an
alarm in parameter F-10 Electronic Overload.
Troubleshooting
•
Check for motor overheating.
•
Check if the motor is mechanically overloaded.
•
When using terminal 53 or 54, check that the
thermistor is connected correctly between either
terminal 53 or 54 (analog voltage input) and
terminal 50 (+10 V supply). Also check that the
terminal switch for 53 or 54 is set for voltage.
Check that parameter F-12 Motor Thermistor Input
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 F-12 Motor
Thermistor Input.
WARNING/ALARM 12, Torque limit
The torque has exceeded the value in
parameter F-40 Torque Limiter (Driving) or the value in
parameter F-41 Torque Limiter (Braking). Parameter SP-25 Trip
Delay at Torque Limit can change this warning from a
warning-only condition to a warning followed by an alarm.
Troubleshooting
•
If the motor torque limit is exceeded during
ramp, extend the ramp time.
•
If the generator torque limit is exceeded during
ramp, extend the ramp time.
•
If torque limit occurs while running, increase the
torque limit. Make sure that the system can
operate safely at a higher torque.
•
Check the application for excessive current draw
on the motor.
WARNING/ALARM 13, Over current
The inverter peak current limit (approximately 200% of the
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.
204
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 P-02, P-03, P-06, P-07, F-04, and F-05.
ALARM 14, Earth (ground) fault
There is current from the output phase to ground, either in
the cable between the frequency converter and the motor,
or in the motor itself. Ground fault is detected by the
current transducers that measure current going out from
the frequency converter and current going into the
frequency converter from the motor. Ground fault is issued
if the deviation of the 2 currents is too large (the current
going out of the frequency converter should be the same
as the current going into the frequency converter).
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.
•
Reset any potential individual offset in the 3
current transducers in AF-650 GP. Perform the
manual initialization or perform a complete AMA.
This method is most relevant after changing the
power card.
ALARM 15, Hardware mismatch
A fitted option is not operational with the present control
board hardware or software.
Record the value of the following parameters and contact
GE:
•
Parameter ID-40 Drive Type.
•
Parameter ID-41 Power Section.
•
Parameter ID-42 Voltage.
•
Parameter ID-43 Software Version.
•
Parameter ID-45 Actual Typecode String.
•
Parameter ID-49 SW ID Control Card.
•
Parameter ID-50 SW ID Power Card.
•
Parameter ID-60 Option Mounted.
•
Parameter ID-61 Option SW Version (for each
option slot).
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.
03/2016 All rights reserved. DET-620D