McQuay RVSS14 Installation, Operation And Maintenance Manual page 41

Code Description
High Line
F13
Frequency
Input power
F14 not single
phase
Input power
F15 not three
phase
Low Line L1-
F21
L2
Low Line L2-
F22
L3
Low Line L3-
F23
L1
IOMM Starter
Detailed Description of Fault / Possible Solutions
Line frequency above 72 Hz was detected.
Verify input line frequency.
If operating on a generator, check generator speed governor for malfunctions.
Line power quality problem / excessive line distortion.
Three-phase power has been detected when the starter is expecting single-phase power.
Verify that input power is single phase.
Verify that single-phase power is connected to the L1 and L2 inputs. Correct wiring if
necessary.
Verify that the SCR gate wires are properly connected to the D3 control board.
Single-phase power has been detected when the starter is expecting three-phase power.
Verify that input power is three phase. Correct wiring if necessary.
Verify that the SCR gate wires are properly connected to the D3 control board.
On medium voltage systems, verify wiring of the voltage feedback measurement circuit.
Low voltage below the Undervoltage Trip Level parameter setting (PFN 08, P31) was
detected for longer than the Over/Under Voltage Trip delay time (PFN 09, P32).
Verify that the actual input voltage level is correct.
Verify that the Rated Voltage parameter (FUN 05,
Check input supply for open fuses or open connections.
On medium voltage systems, verify wiring of the voltage measurement circuit.
Low voltage below the Undervoltage Trip Level parameter setting (PFN 08, P31) was
detected for longer than the Over/Under Voltage Trip delay time (PFN 09, P32).
Verify that the actual input voltage level is correct.
Verify that the Rated Voltage parameter (FUN 05,
Check input supply for open fuses or open connections.
On medium voltage systems, verify wiring of the voltage feedback measurement circuit.
Low voltage below the Undervoltage Trip Level parameter setting (PFN 08, P31) was
detected for longer than the Over/Under Voltage Trip delay time (PFN 09, P32).
Verify that the actual input voltage level is correct.
Verify that the Rated Voltage parameter (FUN 05,
Check input supply for open fuses or open connections.
On medium voltage systems, verify wiring of the voltage feedback measurement circuit.
P66
) is set correctly.
P66
) is set correctly.
P66
) is set correctly.
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