Trane Tracer CH530 User Manual page 32

Control system for chillers
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Diagnostic Name
Affects
and Source
Target
Transition Complete
*Circuit
Input Opened -
Compressor 1A
Transition Complete
*Circuit
Input Opened -
Compressor 2A
Motor Current
Circuit
Overload -
Compressor 1A
Motor Current
Circuit
Overload -
Compressor 2A
Starter Contactor
Chiller
Interrupt Failure -
Compressor 1A
Starter Contactor
Chiller
Interrupt Failure -
Compressor 2A
Over Voltage
Chiller
Under Voltage
Chiller
32
Diagnostics
Active Modes
Severity
Persistence
[Inactive Modes]
Immediate
All running modes
Latch
Immediate
All running modes
Latch
Immediate
Cprsr Energized
Latch
Immediate
Cprsr Energized
Latch
Special
Starter Contactor not
Action
Energized [Starter
Contactor Energized]
Latch
Special
Starter Contactor not
Action
Energized [Starter
Contactor Energized]
Latch
Normal
Pre-Start and Any
NonLatch
Ckt(s) Energzd
Pre-Start and Any
Normal
NonLatch
Ckt(s) Energzd
Criteria
The Transition Complete input was found to be opened
with the compressor motor running after a successful
completion of transition. This is active only for Y-Delta,
Auto-Transformer, Primary Reactor, and X-Line Starters.
To prevent this diagnostic from occurring as the result of
a power loss to the contactors, the minimum time to
trip must be greater than the trip time for the power
loss diagnostic.
The Transition Complete input was found to be opened
with the compressor motor running after a successful
completion of transition. This is active only for Y-Delta,
Auto-Transformer, Primary Reactor, and X-Line Starters.
To prevent this diagnostic from occurring as the result of
a power loss to the contactors, the minimum time to
trip must be greater than the trip time for the power
loss diagnostic.
Compressor current exceeded overload time vs. trip
characteristic. Must trip = 140% RLA, Must hold=125%,
nominal trip 132.5% in 30 seconds
Compressor current exceeded overload time vs. trip
characteristic. Must trip = 140% RLA, Must hold=125%,
nominal trip 132.5% in 30 seconds
Detected compressor currents greater than 10% RLA on
any or all phases when the compressor was
commanded off. Detection time shall be 5 second
minimum and 10 seconds maximum. On detection and
until the controller is manually reset: generate
diagnostic, energize the appropriate alarm relay,
continue to energize the Evap Pump Output, continue to
command the affected compressor off, fully unload the
effected compressor and command a normal stop to all
other compressors. For as long as current continues,
perform liquid level, oil return, and fan control on the
circuit effected.
Detected compressor currents greater than 10% RLA on
any or all phases when the compressor was
commanded off. Detection time shall be 5 second
minimum and 10 seconds maximum. On detection and
until the controller is manually reset: generate
diagnostic, energize the appropriate alarm relay,
continue to energize the Evap Pump Output, continue to
command the affected compressor off, fully unload the
effected compressor and command a normal stop to all
other compressors. For as long as current continues,
perform liquid level, oir return, and fan control on the
circuit effected.
Nom. trip: 60 seconds at greater than 112.5%, + 2.5%,
Auto Reset at 110% or less for 10 cont secs.
Nom. trip: 60 seconds at less than 87 .5%, + 2.8% at
200V 1.8% at 575V, Auto Reset at 90% or greater for
10 cont secs.
Reset Level
Local
Local
Local
Local
Local
Local
Remote
Remote
RLC-SVU05A-E4

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