Trane TR200 Programming Manual page 260

WARNING/ALARM 10, Motor overload tem-
perature
According to the electronic thermal protection (ETR),
the motor is too hot. Select whether the adjustable
frequency drive gives a warning or an alarm when the
counter reaches 100% in par.1-90
tection. The fault is that the motor is overloaded by
more than 100% for too long.
Troubleshooting:
Check if the motor is overheating.
If the motor is mechanically overloaded
That the motor par.1-24
rectly.
Motor data in parameters 1-20 through 1-25 are
set correctly.
The setting in par.1-91
Run AMA in par.1-29 Automatic Motor Adapta-
tion (AMA).
WARNING
Live Electrical Components!
WARNING/ALARM 11, Motor thermistor over-
temp
The thermistor or the thermistor connection is dis-
connected. Select whether the adjustable frequency
drive gives a warning or an alarm when the counter
reaches 100% in par.1-90 Motor Thermal
Troubleshooting:
Check if the motor is overheating.
Check if the motor is mechanically overloaded.
Check that the thermistor is connected correctly
between terminal 53 or 54 (analog voltage input)
and terminal 50 (+10 V supply), or between ter-
minal 18 or 19 (digital input PNP only) and ter-
minal 50.
If a KTY sensor is used, check for correct connec-
tion between terminal 54 and 55.
If using a thermal switch or thermistor, check the
programming of par.1-93
matches sensor wiring.
If using a KTY sensor, check the programming of
parameters 1-95, 1-96, and 1-97 match sensor
wiring.
TR200 Programming Guide
Motor Thermal Pro-
Motor Current is set cor-
Motor External Fan.
Protection.
Thermistor Source
WARNING/ALARM 12, Torque limit
The torque is higher than the value in par.4-16
Limit Motor Mode (in motor operation) or the torque
is higher than the value in par.4-17
erator Mode (in regenerative operation). par.
14-25 Trip Delay at Torque Limit
change this from a warning only condition to a warn-
ing followed by an alarm.
WARNING/ALARM 13, Overcurrent
The inverter peak current limit (approx. 200% of the
rated current) is exceeded. The warning lasts about
1.5 sec. Then the adjustable frequency drive trips and
issues an alarm. If extended mechanical brake con-
trol is selected, trip can be reset externally.
Troubleshooting:
This fault may be caused by shock loading or fast
acceleration with high inertia loads.
Turn off the adjustable frequency drive. Check if
the motor shaft can be turned.
Make sure that the motor size matches the ad-
justable frequency drive.
Incorrect motor data in parameters 1-20 through
1-25.
WARNING
Disconnect power before proceeding.
ALARM 14, Earth (ground) fault
There is a discharge from the output phases to
ground, either in the cable between the adjustable
frequency drive and the motor or in the motor itself.
Troubleshooting:
Turn off the adjustable frequency drive and re-
move the ground fault.
Measure the resistance to ground of the motor
leads and the motor with a megohmmeter to
check for ground faults in the motor.
Perform current sensor test.
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 your Trane supplier:
par.15-40 FC Type
par.15-41 Power Section
par.15-42 Voltage
Troubleshooting
Torque
Torque Limit Gen-
can be used to
5-9