Installation and Maintenance Manual

Diagnostics
196 RLC-SVX09H-EN
Starter Contactor
Interrupt Failure -
Compressor 2A
Chiller
Special
Action
Latch
Starter Contactor not
Energized [Starter
Contactor Energized]
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.
Local
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
Starter Fault Type I –
Compressor 1A
*Circuit Immediate Latch
Starting - Y Delta
Starters Only
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 CTs. If
currents are detected when only 1M is closed first
at start, then one of the other contactors is
shorted.
Local
Starter Fault Type I –
Compressor 2A
*Circuit Immediate Latch
Starting - Y Delta
Starters Only
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 CTs. If
currents are detected when only 1M is closed first
at start, then one of the other contactors is
shorted.
Local
Starter Fault Type II –
Compressor 1A
*Circuit Immediate Latch
Starting All types of
starters
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 CTs. 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.).
Local
Starter Fault Type II –
Compressor 2A
*Circuit Immediate Latch
Starting – All types of
starters
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 CTs. 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.).
Local
Starter Fault Type III –
Compressor 1A
*Circuit Immediate Latch
Starting
[Adaptive Frequency
Starter Type]
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.
Local
Table 133. Starter Diagnostics
Diagnostic Name and
Source
Affects
Target Severity
Persist
ence
Active Modes
[Inactive Modes] Criteria
Reset
Level