Compressor Fault; Vfd Fault - Trane Symbio 700 Application Manual

Compressor Fault

Symbio 700 supports compressor safety functionality to keep the compressors from operating in
an undesirable condition. If a compressor safety failure occurs, the following actions occur:

VFD Fault

The following failures are derived either through direct data monitoring from the Modbus device,
or through a combination of Modbus data and additional failure criteria:
ACC-APG001A-EN
Fault
Coil Temperature Sensor 1
Coil Temperature Sensor 2
Space Humidity Sensor
Space CO2 Sensor
Fault
LPC Lockout
Proving Lockout
Contactor Failure
Fault
Diagnostic: Supply Fan If while the Supply Fan
Failure VFD is requested to run,
the VFD Running Status
False for 40 continuous
seconds, this failure will be
Diagnostic: VFD Fault
Supply Fan – 1
Diagnostic: VFD Supply
Fan Ground Fault – 1
Diagnostic: VFD Supply
Fan Motor Current
Overload – 1
Diagnostic: VFD Supply
Fan Short Circuit – 1
Supply Fan VFD
Communication Status communication between
the controller and the VFD
second period, this failure
Symbio 700 Response
• Annunciated in the Active Alarm list.
• If Outdoor Air Temperature < 52° F, Demand
Defrost will be disabled and timed defrost will
be used.
• Annunciated in the Active Alarm list.
• If Outdoor Air Temperature < 52°F, Demand
Defrost will be disabled and timed defrost will
be used.
Annunciated in the Active Alarm list.
Annunciated in the Active Alarm list.
Symbio 700 Response
For specific operation associated with the LPC
diagnostics, refer to the Compressor Protection
section of this document.
For specific operation associated with the proving
diagnostics, refer to the Compressor Protection
section of this document.
For specific operation associated with the proving
diagnostics, refer to the Compressor Protection
section of this document.
Fault Detection Symbio 700 Response
•
from the drive is set to
•
detected
When Active All unit functions will be
shut down immediately
When Active All unit functions will be
shut down immediately
When Active All unit functions will be
shut down immediately
When Active All unit functions will be
shut down immediately
If continual loss of
•
has occurred for a 30-
•
will be detected.
T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g
Response Type
Response Type
Response Type
Diagnostic: Supply
Fan Failure will be set
to Active
All unit functions will
be shut down
immediately
Supply Fan VFD
Communication
Status will be set to
Not Communicating
All unit functions will
be shut down
Auto Reset
Auto Reset
Auto Reset
Auto Reset
Manual Reset
Manual Reset
Manual Reset
Manual Reset
Auto Reset
Auto Reset
Auto Reset
Auto Reset
Manual Reset
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