10 - 12 RTHC-IOM-1C
Tracer
Temperature
Sensor
IFW N/A Input Shorted. Check Sensor,
Wiring, and
Connections
Transition
Complete Input
Shorted
MMR N/A a. The Transition Complete input was found to be shorted before the
compressor was started.
b. This is active for all electromechanical starters.
Check transition
complete contact
Transition
Complete Input
Opened
MMR Immediate
Friendly
a. The Transition Complete input was found to be opened with the
compressor motor running after a successful completion of
transition.
b. This is active only for Y-Delta, Auto-Transformer, and Primary
Reactor Starters.
Complete Starter
Checkout Required
Under Voltage MAR Friendly a. Line voltage below - 10% of nominal or the Under/Overvoltage
transformer is not connected. (Must hold = - 10% of nominal. Must
trip = - 15% of nominal. Reset differential = min. of 2% and max. of
4%. Time to trip = min. of 1 min. and max. of 5 min.)
Design: Nom. trip: 60 seconds at less than 87.5%, ±2.8% at 200V or
+/- 1.8% at 575V, Auto Reset at 90% or greater.
Check Main Power
Supply & Wiring
Diagnostic
Description
Diagnostic
Type
Shutdown
Action
Cause Help Message
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