MP Systems AK CB20, Installation, Operation & Maintenance Manual

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61 MPSYSTEMS-M-001/06
9.6.7. Alarms ‘RC’
RC unit uses one alarm output to interface with R Series. If a fault occurs, a signal is sent
to the alarm circuit on R Series, which, typically, will put machine tool into a feed hold. The
units PLC will display fault type.
Alarm will not clear off PLC display until fault has been rectified. Once fault has been
remedied, press
[ 1 ]
to clear alarm.
ALARM DISPLAY SYMPTOM(S) CAUSE
LOW FLOW
Less than 5GPM through heat
exchanger

Heat exchanger
clogged.

Circulation pump
rotation reversed.
OVERLOAD
Motor overload tripped

Electric motor short
cycle.

Electric motor shorting.

Load on motor to great.

Electric motor over load
set to low.

Electrical short in system
causing overload to trip.
INLET OUT OF RANGE Sensor fault

Inlet temperature out of
range.
OUTLET OUT OF RANGE Sensor fault

Outlet temperature out
of range.
HP PUMP FAULT
R Series high pressure system
fault

R Series Fault.