Trane R Series Installation, Operation And Maintenance

Diagnostics
RTAC-SVX01J-EN 149
Phase Loss -
Compressor 1B
Cprsr Immediate Latch
Start
Sequence
and Run
modes
a) No current was sensed on one or two of the current transformer
inputs while running or starting (See Nonlatching Power Loss
Diagnostic for all three phases lost while running). Must hold =
20% RLA. Must trip = 5% RLA. Time to trip shall be longer than
guaranteed reset on Starter Module at a minimum, 3 seconds
maximum. Actual design trippoint is 10%. The actual design trip
time is 2.64 seconds. b) If Phase reversal protection is enabled
and current is not sensed on one or more current xformer inputs.
Logic will detect and trip in a maximum of 0.3 second from
compressor start
Local
Phase Loss -
Compressor 2A
Cprsr Immediate Latch
Start
Sequence
and Run
modes
a) No current was sensed on one or two of the current transformer
inputs while running or starting (See Nonlatching Power Loss
Diagnostic for all three phases lost while running). Must hold =
20% RLA. Must trip = 5% RLA. Time to trip shall be longer than
guaranteed reset on Starter Module at a minimum, 3 seconds
maximum. Actual design trippoint is 10%. The actual design trip
time is 2.64 seconds. b) If Phase reversal protection is enabled
and current is not sensed on one or more current xformer inputs.
Logic will detect and trip in a maximum of 0.3 second from
compressor start
Local
Phase Loss -
Compressor 2B
Cprsr Immediate Latch
Start
Sequence
and Run
modes
a) No current was sensed on one or two of the current transformer
inputs while running or starting (See Nonlatching Power Loss
Diagnostic for all three phases lost while running). Must hold =
20% RLA. Must trip = 5% RLA. Time to trip shall be longer than
guaranteed reset on Starter Module at a minimum, 3 seconds
maximum. Actual design trippoint is 10%. The actual design trip
time is 2.64 seconds. b) If Phase reversal protection is enabled
and current is not sensed on one or more current xformer inputs.
Logic will detect and trip in a maximum of 0.3 second from
compressor start
Local
Phase Reversal -
Compressor 1A
Cprsr Immediate Latch
Compressor
energized to
transition
command
[All Other
Times]
A phase reversal was detected on the incoming current. On a
compressor startup the phase reversal logic must detect and trip
in a maximum of .3 second from compressor start.
Local
Phase Reversal -
Compressor 1B
Cprsr Immediate Latch
Compressor
energized to
transition
command
[All Other
Times]
A phase reversal was detected on the incoming current. On a
compressor startup the phase reversal logic must detect and trip
in a maximum of .3 second from compressor start.
Local
Phase Reversal -
Compressor 2A
Cprsr Immediate Latch
Compressor
energized to
transition
command
[All Other
Times]
A phase reversal was detected on the incoming current. On a
compressor startup the phase reversal logic must detect and trip
in a maximum of .3 second from compressor start.
Local
Phase Reversal -
Compressor 2B
Cprsr Immediate Latch
Compressor
energized to
transition
command
[All Other
Times]
A phase reversal was detected on the incoming current. On a
compressor startup the phase reversal logic must detect and trip
in a maximum of .3 second from compressor start.
Local
Table 66. Starter diagnostics (continued)
Diagnostic Name
and Source
Affects
Target Severity Persistence
Active
Modes
[Inactive
Modes] Criteria
Reset
Level

Trane R Series Specifications

General

Brand	Trane
Model	R Series
Category	Chiller
Language	English