Trane RTHD series Installation, Operation And Maintanance page 117

Table 35. Diagnostics Table
Hex Diagnostic Name
Code and Source
1A0 Power Loss
2F2 Refrigerant Monitor
Sensor
28C Restart Inhibit Warn-
ing
189 Solid State Starter
Fault
188 Starter Dry Run Test
5CD Starter Comm Loss
with MP
CA Starter Contactor
Interrupt Failure
F0 Starter Did Not Tran-
sition
6A3 Starter Failed to
Arm/Start
1E9 Starter Fault Type I
1ED Starter Fault Type II
1F1 Starter Fault Type III Immediate
5C5 Starter Module Mem-
ory Error Type 1
5C9 Starter Module Mem-
ory Error Type 2 -
RTHD-SVX02H-EN
Severity Persistence
Immediate NonLatch
Info NonLatch
Info NonLatch
Immediate Latch
Immediate Latch
Immediate Latch
Immediateand Latch
Special Mode-
Actio n
Immediate Latch
Info Latch
Immediate Latch
Immediate Latch
Latch
Info Latch
Immediate Latch
Criteria
The compressor had previously established currents while running
and then all three phases of current were lost. Design: Less than
10% RLA, trip in 2.64 seconds. This diagnostic will preclude the
Phase Loss Diagnostic and the Transition Complete Input Opened
Diagnostic from being called out. To prevent this diagnostic from
occurring with the intended disconnect of main power, the mini-
mum time to trip must be greater than the guaranteed reset time
of the Starter module. Note: This diagnostic prevents nuisance
latching diagnostics due to a momentary power loss - It does not
protect motor/compressor from uncontrolled power reapplication.
See Momentary Power Loss Diagnostic for this protection. This
diagnostic will auto reset in 10 seconds from its occurrence, and
is not active during the start mode before the transition com-
plete input is proven. This prevents the chiller from cycling due
to some internal starter problem, as the starter would latch out
on either a "Starter Fault Type 3" or a "Starter Did Not Transition"
latching diagnostic. However true power loss occurring during
a start would result in a misdiagnosis and the chiller would not
automatically recover.
Open or Shorted input and the Rfgt Monitor is setup as installed
The Restart Inhibit was invoked on a compressor. This indicates
excessive chiller cycling which should be corrected.
The Solid State Starter Fault Relay is open
While in the Starter Dry Run Mode either 50 % Line Voltage was
sensed at the Potential Transformers or 10 % RLA Current was
sensed at the Current Transformers.
Starter has had a loss of communication with the MP for a 15
second period.
Detected compressor currents greater than 10% RLA on any or
all phases when the compressor was commanded off. Detection
time shall be 5 seconds minimum and 10 seconds maximum. On
detection and until the controller is manually reset: generate di-
agnostic, energize the appropriate alarm relay, continue to ener-
gize the Evap and Cond Pump Outputs, continue to command the
affected compressor off, fully unload the effected compressor. For
as long as current continues, perform liquid level and oil return
gas pump control
The Starter Module did not receive a transition complete sig-
nal in the designated time from its command to transition. The
must hold time from the Starter Module transition command is
1 second. The Must trip time from the transition command is 6
seconds. Actual design is 2.5 seconds. This diagnostic is active
only for Y-Delta, Auto-Transformer, Primary Reactor, and X-Line
Starters.
Starter failed to arm or start within the allotted time (15 sec-
onds).
This is a specific starter test where 1M(1K1) is closed first and a
check is made to ensure that there are no currents detected by
the CT's. If currents are detected when only 1M is closed first at
start, then one of the other contactors is shorted.
a. This is a specific starter test where the Shorting Contactor (1K3)
is individually energized and a check is made to ensure that there
are no currents detected by the CT's. If current is detected when
only S is energized at Start, then 1M is shorted. b. This test in a.
above applies to all forms of starters (Note: It is understood that
many starters do not connect to the Shorting Contactor.).
As part of the normal start sequence to apply power to the
compressor, the Shorting Contactor (1K3) and then the Main
Contactor (1K1) were energized. 1.6 seconds later there were no
currents detected by the CT's for the last 1.2 seconds on all three
phases. The test above applies to all forms of starters except
Adaptive Frequency Drives.
Checksum on RAM copy of the Starter LLID configuration failed.
Configuration recalled from EEPROM.
Checksum on EEPROM copy of the Starter LLID configuration
failed. Factor default values used.
Diagnostics
Reset
Level
Remote
Remote
Remote
Local
Local
Local
Local
Local
Remote
Local
Local
Local
Local
Local
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