Trane VarioTrane TR1 2800 Series, Operating Instructions Manual

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If the temperature inside the power module rises above 75 - 85 ° C (depending on the device) the frequency
converter will emit a warning, and the motor will continue to run unchanged. If the temperature continues to
rise, the switch frequency is reduced automatically. See
Temperature-dependent switching frequency
.
If the temperature inside the power module rises above 92 - 100
°
C (depending on the unit) the frequency con-
verter will cut out. The temperature fault cannot be reset until the temperature has dropped to below 70 ° C. The
tolerance is
±
5
°
C. The temperature can be caused by the following:
- The ambient temperature too high.
- Motor cable too long.
- Too high mains voltage.
If one of these failures occurs, please contact Trane.
Alarm 37, internal fault number 0: Communication fault between control card and BMC.
Alarm 38, internal fault number 1: Flash EEPROM fault on control card.
Alarm 39, internal fault number 2: RAM fault on control card.
Alarm 40, internal fault number 3: Calibration constant in EEPROM.
Alarm 41, internal fault number 4: Data values in EEPROM.
Alarm 42, internal fault number 5: Fault in motor parameter database.
Alarm 43, internal fault number 6: General power card fault.
Alarm 44, internal fault number 7: Minimum software version of control card or BMC.
Alarm 45, internal fault number 8: I/O fault (digital input/output, relay or analog input/output).
NOTE:
When restarting after an alarm 38-45, the frequency converter will display an alarm 37. In parameter 615 the
actual alarm code can be read.
One of the following three possibilities can occur:
- The calculated RS value falls outside permitted limits.
- The motor current in at least one of the motor phases is too low.
- The motor in use is too small for AMT calculations to be performed.
There is inconsistency between the registered motor data. Check the motor data for the relevant setup.
The AMT function has detected a missing motor phase.
Calculations are taking too long, possibly due to noise on the motor cables.
A frequency converter warning is given while AMT is being performed.
See parameter 18.
TR1 2800 Series VFD 111
WARNING/ALARM 36: Overtemperature
ALARM 37-45: Internal fault
ALARM 50: AMT not possible
ALARM 51: AMT Fault regarding nameplate
data
ALARM 52: AMT missing motor phase
ALARM 55: AMT timeout
ALARM 56: AMT warning during AMT
WARNING 99: Locked
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