Trane R Series Installation, Operation And Maintenance Manual page 150

Air-cooled helical rotary liquid chillers
Table of Contents

Advertisement

Diagnostics
Table 66. Starter diagnostics (continued)
Diagnostic Name
Affects
and Source
Target Severity Persistence
Power Loss -
Cprsr
Compressor 1A
Power Loss -
Cprsr
Compressor 1B
Power Loss -
Cprsr
Compressor 2A
Power Loss -
Cprsr
Compressor 2B
Severe Current
Imbalance -
Circuit Immediate
Compressor 1A
Severe Current
Imbalance -
Circuit Immediate
Compressor 1B
Severe Current
Imbalance -
Circuit Immediate
Compressor 2A
Severe Current
Imbalance -
Circuit Immediate
Compressor 2B
Starter 1A Dry Run
Cprsr
Test
Starter 1B Dry Run
Cprsr
Test
Starter 2A Dry Run
Cprsr
Test
Starter 2B Dry Run
Cprsr
Test
150
Active
Modes
[Inactive
Modes]
compressor
running
modes
Immediate
NonLatch
compressor
starting and
non-running
modes]
compressor
running
modes
Immediate
NonLatch
compressor
starting and
non-running
modes]
compressor
running
modes
Immediate
NonLatch
compressor
starting and
non-running
modes]
compressor
running
modes
Immediate
NonLatch
compressor
starting and
non-running
modes]
All Running
Latch
All Running
Latch
All Running
Latch
All Running
Latch
Starter Dry
Immediate
Latch
Run Mode
Starter Dry
Immediate
Latch
Run Mode
Starter Dry
Immediate
Latch
Run Mode
Starter Dry
Immediate
Latch
Run Mode
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
All
Input Opened Diagnostic from being called out. To prevent this
diagnostic from occurring with the intended disconnect of main
power, the minimum time to trip must be greater than the
guaranteed reset time of the Starter module. Note: This
[all
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 is not active
during the start mode before the transition complete input is
proven. Thus a random power loss during a start would result in
either a "Starter Fault Type 3" or a "Starter Did Not Transition"
latching diagnostic.
All
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
[all
Input Opened Diagnostic from being called out. To prevent this
diagnostic from occurring with the intended disconnect of main
power, the minimum time to trip must be greater than the
guaranteed reset time of the Starter module.
All
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
[all
Input Opened Diagnostic from being called out. To prevent this
diagnostic from occurring with the intended disconnect of main
power, the minimum time to trip must be greater than the
guaranteed reset time of the Starter module.
All
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
[all
Input Opened Diagnostic from being called out. To prevent this
diagnostic from occurring with the intended disconnect of main
power, the minimum time to trip must be greater than the
guaranteed reset time of the Starter module.
A 30% Current Imbalance has been detected on one phase
Modes
relative to the average of all 3 phases for 90 continuous seconds.
A 30% Current Imbalance has been detected on one phase
Modes
relative to the average of all 3 phases for 90 continuous seconds.
A 30% Current Imbalance has been detected on one phase
Modes
relative to the average of all 3 phases for 90 continuous seconds
A 30% Current Imbalance has been detected on one phase
Modes
relative to the average of all 3 phases for 90 continuous seconds.
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.
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.
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.
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.
Criteria
RTAC-SVX01J-EN
Reset
Level
Remote
Remote
Remote
Remote
Local
Local
Local
Local
Local
Local
Local
Local

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents