99
ALARM 22
AMA FAULT
A fault has been found during automatic motor adaptation (AMA). The
text shown in the display indicates a fault message.
AMA can only be carried out if there are no alarms during the AMA
process.
CHECK 103, 105
Parameter 103 or 105 has a wrong setting. Correct the setting
and repeat AMA.
LOW P 105
The motor is too small for AMA to be carried out. If AMA is to be
enabled, the rated motor current, parameter 105, must be higher
than 35% of the rated output current of the drive.
ASYMMETRICAL IMPEDANCE
AMA has detected an asymmetrical impedance in the motor
connected to the system. The motor could be defective.
MOTOR TOO BIG
The motor connected to the system is too big for AMA to be carried
out. The setting in parameter 102 does not match the motor used.
MOTOR TOO SMALL
The motor connected to the system is too small for AMA to be
carried out. The setting in parameter 102 does not match the
motor used.
TIME OUT
AMA fails because of noisy measuring signals. Retry until AMA is
successfully completed. Please note that repeated AMA runs may
heat the motor to a level where the stator resistance is increased.
INTERRUPTED BY USER
AMA has been interrupted by the user.
INTERNAL FAULT
An internal fault has occurred in the drive. Contact Trane service
department.
LIMIT VALUE FAULT
The parameter values found for the motor are outside the
acceptable range within which the drive is able to work.
MOTOR ROTATES
The motor shaft is rotating. Make sure that the load is not able to
make the motor shaft rotate while the AMA is being performed.
Then start AMA all over.
ALARM 29
HEAT SINK OVER TEMP.
The heatsink temperature became too high. For NEMA 1 drives, the
limit is 90°C. For NEMA 12 drives, the limit is 80°C. The tolerance is
±5°C. The fault cannot be reset until the temperature of the heatsink
has fallen below 60°C.
The fault could be due to the following:
- Ambient temperature too high
- Air obstructed
- Cooling fan(s) not operating
- Motor leads too long
- Too high a switching frequency
ALARM 30
MISSING MOT.PHASE U
Motor phase U, as indicated by the letters on the output terminal block,
is missing or has a high impedance.
Remove power to the drive and check motor phase U.
ALARM 31
MISSING MOT.PHASE V
Motor phase V, as indicated by the letters on the output terminal block is
missing or has a high impedance.
Remove power to the drive and check motor phase V.
ALARM 32
MISSING MOT.PHASE W
Motor phase W, as indicated by the letters on the output terminal block
is missing or has a high impedance.
Remove power to the drive and check motor phase W.
WARNING/ALARM 34
HPFB COMM. FAULT
The serial communication on the communication option card is not
working.
WARNING 35
OUT FREQ RNG/ROT LIM
This warning will occur if the output frequency has reached its
Output
Frequency Low Limit
, parameter 201, or
Output Frequency High
Limit,
parameter 202. If the drive is in
Closed Loop
, parameter 100, the
warning will show in the display.
