Diagnostics
Diagnostic Name
and Source
Affects
Ta r g e t
Severity Persistence
Active Modes
[Inactive Modes]
Criteria Reset Level
Starter Did Not
Transition -
Compressor 1A
*Circuit Immediate
Latch
On the first check
after transition.
The Starter Module did not receive a transition complete
signal 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.
Local
Starter Did Not
Transition -
Compressor 2A
*Circuit Immediate
Latch
On the first check
after transition.
The Starter Module did not receive a transition complete
signal 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.
Local
Phase Reversal -
Compressor 1A
*Circuit 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
*Circuit 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
Starter 1A Dry Run
Test
*Circuit Immediate
Latch
Starter Dry Run Mode 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.
Local
Starter 2A Dry Run
Test
*Circuit Immediate
Latch
Starter Dry Run Mode 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.
Local
Phase Loss -
Compressor 1A
*Circuit 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 seconds from compressor
start.
Local
Table 4 - Main Processor Diagnostics
29RLC-SVU05A-E4
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