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Controller Operation

Fault Description

Inlet Temperature The module detected that the engine’s ECU measurement of in-

let temperature had risen above the Inlet Temperature Pre-

Alarm Trip level.

Insufficient Capacity The module’s governor output has reached its limit whilst at-

tempting to control the generator to produce more kWs whilst in

parallel. This indicates a fault with either the governor (including

connection error), setting of SW2, or that the engine has

reached its maximum capacity.

kW Overload

IEEE C37.2 – 32 Directional Power Relay

The module detected that the generator output kW had risen

above the Overload Protection Trip for the configured delay

timer.

Loss Of Excitation The module detected that the generator output kvar had fallen

below the Loss of Excitation Pre-Alarm Trip level.

Loss of Magnetic Pickup The module detected that the magnetic pick up was not produc-

ing a pulse output after the required Crank Disconnect criteria

had been met.

Low Coolant Warning The module detected that the engine coolant temperature had

fallen below the Low Coolant Temperature Pre-Alarm Trip level.

Maintenance Due

NOTE: Due to module configuration the alarm message that ap-

pears on the display may be different. For further details of mod-

ule configuration, contact your Authorized Industrial Service

Dealer (IASD).

The module detected that one of the configured maintenance

alarms is due as its configured maintenance interval has

expired.

Mains Asymmetry High The module detected the mains (utility) voltage asymmetry had

risen above the configurable Trip level for the configured delay

timer.

Mains Decoupling High Frequency If the Module detects the mains (utility) frequency increase