Diagnostics
31RLC-SVU05A-E4
Diagnostic Name
and Source
Affects
Ta r g e t
Severity Persistence
Active Modes
[Inactive Modes]
Criteria Reset Level
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 CT's. 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 CT's. 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 CT's. 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
Starter Fault Type III
- Compressor 2A
*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
Compressor Did Not
Accelerate:
Transition -
Compressor 1A
*Circuit Info
Latch
Start Mode The compressor did not come up to speed (fall to
<85%RLA) in the allotted time defined by the Maximum
Acceleration Timer and a transition was forced (motor
put across the line) at that time. This applies to all
starter types.
Remote
Compressor Did Not
Accelerate:
Transition -
Compressor 2A
*Circuit Info
Latch
Start Mode The compressor did not come up to speed (fall to
<85%RLA) in the allotted time defined by the Maximum
Acceleration Timer and a transition was forced (motor
put across the line) at that time. This applies to all
starter types.
Remote
Transition Complete
Input Shorted -
Compressor 1A
*Circuit Immediate Latch Pre-Start
The Transition Complete input was found to be shorted
before the compressor was started. This is active for all
electromechanical starters.
Local
Transition Complete
Input Shorted -
Compressor 2A
*Circuit Immediate Latch Pre-Start
The Transition Complete input was found to be shorted
before the compressor was started. This is active for all
electromechanical starters.
Local
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