Full Product Manual

TP-7092 4/23 37
Figure 24 Clearing a Fault on the RDC2 Controller
Fault Message
Warning (W) or
Shutdown (SD)
Condition
Check
AC Sens Loss
W (1 sec.)
SD (3 sec.) *
AC sensing lost. In Auto mode, generator output AC sensing
is lost. Detection begins10 seconds after crank disconnect.
Warning: after 1 second if no output detected after crank
disconnect.
Shutdown: after 3 seconds if voltage was present and then
lost.
Contact an authorized dealer
for service.
Accy PwrOver
Warning
W
Accessory Power Overload. An over current fault (short
circuit) on the accessory controller power output.
Contact an authorized dealer
for service.
Advanced
Diagnostic
SD
Shutdown during the reduced speed portion of an exercise.
The event history will show Advanced Diagnostic Active. The
engine then restarts, runs at full speed for 2 minutes, and
stops. The controller returns to AUTO mode. The exercise
schedule does not change.
If the generator set does not
restart and return to AUTO,
check for other faults that
prevent generator set
operation.
ATS ComError
W
ATS communication error. Warning is displayed if ATS
interface connection is lost. See the section title: ATS
Communication Errors.
Check communication wiring
between transfer switch
interface board and generator
set.
ATS PhaseRot
W
ATS phase rotation mismatch. Transfer switch phase rotation
does not match, ATS will not transfer.
Correct the ATS connection.
Refer to the ATS Installation
manual, wiring diagrams, and
labels on the transfer switch.
Aux Input
SD *
Auxiliary input. An optional customer-connected input is
closed. (Digital input from optional PIM.)
Check customer-supplied
equipment.
Batt Chg Flt
W
Battery charger fault. Input to PIM from an external battery
charger (not the built-in battery charger).
Check external battery charger.
Battery CrLo
Warning
W
Engine starting battery voltage falls below 11 VDC for more
than 10 seconds. Inhibited during the engine crank cycle.
Clears when the battery voltage returns to an acceptable
level.
Check the battery rating and
condition.
Check the battery charger
operation.
Charge or replace the battery.
Battery Voltage
High
W
Engine starting battery voltage rises above 16 VDC for more
than 10 seconds. Inhibited during the engine crank cycle.
Clears when the battery voltage returns to an acceptable
level.
Check the battery rating and
condition.
Check the battery charger
operation.
Battery Voltage
Low
W
Engine starting battery voltage falls below 12.5 VDC for more
than 90 seconds when the engine is not running. Not
operative during the engine crank cycle.
Clears when the battery voltage returns to an acceptable
level.
Check the battery rating and
condition.
Check the battery charger
operation.
Charge or replace the battery.
Engine Speed
High
SD *
Engine speed exceeds 115% of the normal running speed for
more than 0.3 seconds.
Contact an authorized dealer
for service.
Engine Speed
Low
SD *
Engine speed drops below 85% of the normal running speed
for more than 3 seconds.
Reduce the load.
Check enclosure thermostat
and reset if tripped. Contact an
authorized dealer for service.
Exer Not Sch
W
Exercise not scheduled. No exercise is scheduled on the
controller.
See the Setting the Exerciser
section for instructions to set
the exerciser.
Fault Message
Confirm Clear
Fault: NO
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1.2 h
Fault Message
Confirm Clear
Fault: YES
Press UP arrow button.