Trane TR170 - Page 37

•
Verify a proper installation based on EMC
requirements.
WARNING 24, External fan fault
The fan warning function is a protective function that
checks if the fan is running/mounted. The fan warning can
be disabled in parameter 14-53 Fan Monitor ([0] Disabled).
For frequency converters with DC fans, a feedback sensor
is mounted in the fan. If the fan is commanded to run and
there is no feedback from the sensor, this alarm appears.
For frequency converters with AC fans, the voltage to the
fan is monitored.
Troubleshooting
•
Check for proper fan operation.
•
Cycle power to the frequency converter and
check that the fan operates
briey
at start-up.
•
Check the sensors on the heat sink.
ALARM 30, Motor phase U missing
Motor phase U between the frequency converter and the
motor is missing.
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to use
qualied
personnel to install, start up, and
maintain the frequency converter can result in death or
serious injury.
•
Disconnect power before proceeding.
WARNING
Disconnect power before proceeding.
Troubleshooting
•
Remove the power from the frequency converter
and check motor phase U.
ALARM 31, Motor phase V missing
Motor phase V between the frequency converter and the
motor is missing.
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to use qualied personnel to install, start up, and
maintain the frequency converter can result in death or
serious injury.
•
Disconnect power before proceeding.
WARNING
Disconnect power before proceeding.
Troubleshooting
•
Remove the power from the frequency converter
and check motor phase V.
ALARM 32, Motor phase W missing
Motor phase W between the frequency converter and the
motor is missing.
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when
connected to AC mains input, DC supply, or load sharing.
Failure to use
qualied
personnel to install, start up, and
maintain the frequency converter can result in death or
serious injury.
•
Disconnect power before proceeding.
WARNING
Disconnect power before proceeding.
Troubleshooting
•
Remove the power from the frequency converter
and check motor phase W.
ALARM 38, Internal fault
When an internal fault occurs, a code number dened in
Table 4.4 is displayed.
Troubleshooting
Cycle power
Check that the option is properly installed
Check for loose or missing wiring
It may be necessary to contact your Trane supplier or
service department. Note the code number for further
troubleshooting directions.
No. Text
0 Serial port cannot be initialised. Contact your Trane
supplier or Trane Service Department.
256-258 Power EEPROM data is defective or too old.
Replace power card.
512-519 Internal fault. Contact your Trane supplier or Trane
Service Department.
783 Parameter value outside of min/max limits
1024-1284 Internal fault. Contact your Trane supplier or the
Trane Service Department.
1379-2819 Internal fault. Contact your Trane supplier or Trane
Service Department.
1792 HW reset of DSP
1793 Motor derived parameters not transferred correctly
to DSP
Troubleshooting
36 02/2017 All rights reserved. BAS-SVM04B-EN
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