Trane TR150 Programming Manual page 101

Troubleshooting
WARNING/ALARM 8, DC under voltage
If the DC-link voltage (DC) drops below the undervoltage
limit, the frequency converter trips after a fixed time delay.
The time delay varies with unit size.
WARNING/ALARM 9, Inverter overloaded
The frequency converter is about to cut out because of an
overload (too high current for too long). The counter for
electronic, thermal inverter protection issues a warning at
90% and trips at 100%, while issuing an alarm. The
4 4
frequency converter cannot be reset until the counter is
below 90%.
The fault is that the frequency converter is overloaded by
more than 100% for too long.
NOTICE
See the chapter Derating in the design guide for more
details, if a high switching frequency is required.
WARNING/ALARM 10, Motor overload temperature
According to the electronic thermal protection (ETR), the
motor is too hot. Select whether the frequency converter
issues a warning or an alarm when the counter reaches
100% in parameter 1-90 Motor Thermal Protection. The fault
is that the motor is overloaded by more than 100% for too
long.
CAUTION
Live Electrical Components!
Troubleshooting
•
Check if the motor is overheating.
•
Check if the motor is mechanically overloaded.
•
Ensure that the motor parameter 1-24 Motor
Current is set correctly.
•
Ensure motor data in parameters 1-20 through
1-25 are set correctly.
•
Run AMA in parameter 1-29 Automatic Motor
Adaption (AMA).
WARNING/ALARM 11, Motor thermistor over temp
CAUTION
Disconnect power before proceeding.
WARNING/ALARM 13, Overcurrent
The inverter peak current limit is exceeded. The warning
lasts about 1.5 s, then the frequency converter trips and
issues an alarm.
Troubleshooting
•
This fault may be caused by shock loading or fast
acceleration with high inertia loads.
•
Turn off the frequency converter. Check if the
motor shaft can be turned.
•
Check that the motor size matches the frequency
converter.
100
TR150 and TR170
•
ALARM 14, Earth (ground) fault
There is a discharge from the output phases to ground,
either in the cable between the frequency converter and
the motor or in the motor itself.
CAUTION
Disconnect power before proceeding.
Troubleshooting
•
•
ALARM 16, Short circuit
There is short-circuiting in the motor or on the motor
terminals.
CAUTION
Disconnect power before proceeding.
Turn off the frequency converter and remove 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
Timeout Function is not set to [0] Off.
If parameter 8-04 Control Timeout Function is set to [5] Stop
and trip, a warning appears and the frequency converter
ramps down until it trips while giving an alarm.
WARNING
Live Electrical Components!
Troubleshooting
•
•
•
•
WARNING/ALARM 24, Fan fault
The fan warning function is an extra protection function
that checks whether the fan is running/mounted. The fan
warning can be disabled in parameter 14-53 Fan Monitor
([0] Disabled).
Troubleshooting
•
02/2017 All rights reserved.
Incorrect motor data in parameters 1-20 to 1-25.
Turn off the frequency converter and remove the
ground fault.
Measure the resistance to ground the motor
cables and the motor with a megohmmeter to
check for ground faults in the motor.
Check connections on the serial communication
cable.
Increase parameter 8-03 Control Timeout Time.
Check operation of the communication
equipment.
Verify proper installation based on EMC
requirements.
Check fan resistance.
BAS-SVP16B-EN