Main Processor Diagnostics - Trane Optimus RTHD Installation, Operation And Maintenance Manual

Diagnostics
Table 25. Local communication drive diagnostics (continued)
Diagnostic
Name and Affects
Source Target Severity
AFD Output
Chiller Immediate Latching
Phase Loss
AFD Rated
Current out of Chiller Warning
Range
Comm Loss:
Adaptive Chiller Normal
Frequency Drive
High Pressure
Chiller Immediate Latching
Cutout

Main Processor Diagnostics

Table 26. Main processor diagnostics
Diagnostic
Name and Affects
Source Target Severity
AFD Output
Chiller Warning
Power Input
Compressor
Discharge
Chiller Immediate Latch
Temperature
Sensor
Condenser Diff
Water Pressure Chiller Warning
Xdcr
Condenser Warning
Entering Water Chiller and Special
Temp Sensor Action
Condenser
Leaving Water Chiller Warning
Temp Sensor
Condenser Rfgt
Pressure Chiller Normal
Transducer
Condenser
Chiller Immediate NonLatch
Water Flow Lost
Condenser
Water Flow Chiller Normal
Overdue
Economizer
Chiller Normal
Pressure Sensor
Economizer
Temperature Chiller Normal
Sensor
Emergency Stop Chiller Immediate Latch
76
Active Modes
[Inactive
Persistence Modes]
Compressor
Running
Latching All
Non-Latching All
All
Active Modes
[Inactive
Persistence Modes]
NonLatch All
All
Latching All
Latch All
Latch All
Latch All
Start and All Run
Modes
Estab Cond Water
Flow - or for 1st 10
sec after Ignore DP
NonLatch setting is reached if
Cond Wtr Flow
Proving Ignore is
enabled
Latch All
Latch All
All
Criteria
Drive sensed an output phase is missing. Output phase
loss is defined as greater than 15% output current
imbalance for more than 5.0 seconds.
The configuration motor rated current bigger than AFD
rated current
Continual loss of communication between the MP and
the Functional ID has occurred for a 6-10 second
period.
The high pressure hardware switch was tripped.
Criteria
"Out-Of-Range Low or Hi or bad LLID, set diagnostic, This
Info diagnostic will automatically reset if the input returns
to the normal range."
Bad Sensor or LLID
Defective Sensor or LLID
Display invalid value.
Flow calculation shall be disabled.
Bad Sensor or LLID. If chiller running, and condenser water
regulating valve option installed, force valve to 100% flow.
Bad Sensor or LLID
Bad Sensor or LLID
The condenser water flow proof input was open for more
than 6 contiguous seconds after flow had been proven.
This diagnostic is automatically cleared once the
compressor is stopped by a fixed time out of 7 sec. The
Cond Pump shall be commanded off but the Evap pump
command will not be effected.
Condenser water flow was not proven within 20 minutes of
the condenser pump relay being energized. The Cond
Pump shall be commanded off. Diagnostic is reset with
return of flow (although only possible with external control
of pump). This diagnostic may also occur if Cond Wtr Flow
Proving Ignore is enabled, and flow is not immediately
proven as the Ignore DP setting is reached."
Bad Sensor or LLID
Bad Sensor or LLID
EMERGENCY STOP input is open. An external interlock has
tripped. Time to trip from input opening to unit stop shall
be 0.1 to 1.0 seconds.
Reset
Level
Local
Local
Local
Reset
Level
Remote
Remote
Remote
Remote
Remote
Remote
Remote
Remote
Remote
Remote
Local
RTHD-SVX01K-EN