McQuay RVSS14 Installation, Operation And Maintenance Manual page 45

Fault
Description
Code
Control
F50
Power Low
Current
F51 Sensor
Offset Error
Burden
F52
Switch Error
External
F60 Fault on
DI#1 Input
External
F61 Fault on
DI#2 Input
External
F62 Fault on
DI#3 input
IOMM Starter
Detailed Description of Fault / Possible Solutions
Low control power (below 90V) has been detected while running, by the D3 controller.
Verify that the control power input level is correct especially during starting when there may
be significant line voltage drop.
Check control power transformer tap setting (if available).
Check control power transformer fuses (if present).
Check wiring between control power source and starter.
Indicates that the D3 control board self-diagnostics have detected a problem with one or
more of the current sensor inputs.
Verify that the motor FLA (QST 01, P1), CT ratio (FUN 03, P68), and burden switch
settings are correct.
Verify that no actual current is flowing through any of the starter's CTs when the starter is
not running.
Consult factory if fault persists.
The burden switch settings were changed when starter was running. Only change burden
switches when starter is not running.
DI#1 has been programmed as a fault type digital input and the input indicates a fault
condition is present.
Verify that the appropriate Digital Input Configuration parameter has been programmed
correctly.
Verify wiring and level of input.
DI#2 has been programmed as a fault type digital input and input indicates a fault condition
is present.
Verify that the appropriate Digital Input Configuration parameter has been programmed
correctly.
Verify wiring and level of input.
DI#3 input has been programmed as a fault type digital input and input indicates a fault
condition is present.
Verify that the appropriate Digital Input Configuration parameter has been programmed
correctly.
Verify wiring and level of input.
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