Trane IntelliPak with Symbio 800 Programming Manual page 102

Troubleshooting
Diagnostics Target
VFD Relief Fan Speed
Parameter Failure – X
Unit
where X is "1", "2" or
"3"
VFD Supply Fan Ground
Fault – X
Unit
where X is "1" or "2"
VFD Supply Fan In Hand
Mode – X
Unit
where X is "1" or "2"
102
Severity Persistence
Warning Latching*
Warning Latching*
Warning Non-Latching
Condition / Response
Relief fan X indicates its Maximum Speed parameter
does not match the Maximum Permissible Speed
parameter. (EC-Clone Required)
Failure of fan X with other fans available: No action.
Failure of fan X with the other fans not-available:
Relief damper is closed, relief fan commanded off and
the Economizing will be disable and the outside air
damper will be driven to the active minimum
position.
* The Latching behavior for this diagnostic is latched
in the drive. When the drive diagnostics are reset this
diagnostic will be cleared in the Symbio™ 800
controller by setting its persistence to Non-Latching.
Supply fan X VFD indicates an earth ground fault has
resulted in 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.
Further fan operation is not recommended until
measurements to ground can be taken from the
motor leads and the ground fault removed.
Failure of fan X with the other fan available:
Generate a "Supply Fan X Proving Failure" diagnostic
on the failed fan, allow the working fan to continue
and lock-out all heating operation.
Failure of fan X with the other fan not-available:
Generate a "Supply Fan X Proving Failure" diagnostic
on the failed fan and shutdown the unit.
* The Latching behavior for this diagnostic is latched
in the drive. When the drive diagnostics are reset this
diagnostic will be cleared in the Symbio™ 800
controller by setting its persistence to Non-Latching.
This drive alarm may be Trip Locked at the TR150
drive. If the drive determines that the condition could
cause damage to the drive, the drive protects itself by
generating a Trip Lock that can only be cleared by
cycling power.
Supply fan X VFD has been put into hand mode at the
drive interface.
This should be for testing only as this will cause issues
for normal startup and running
Reset Level
Local
Local
Local
RT-SVP011E-EN