Instruction Manual M A M - 8 7 0
Senator Industrial Air Compressors
15
4.2 Alarms and Messages
The controller will display self-explanatory messages such as “Air Filter Life
Terminated”, “Oil Filter Life Terminated”, etc. when the pre-programmed running hour
limits are reached.
Faults caused by other components may also be displayed on the control screen, for
example:
In this case, the necessary remedial action would be to check the pressure sensor wiring
and also the sensor itself to find the fault.
The following table provides a guide to some other common fault messages and
recommended actions.
FAULT
LIKELY CAUSE
REMEDIAL ACTION
Air Exhaust
Temperature Too
High
Poor ventilation or low oil
level.
Check ventilation conditions and
oil level.
Temperature
Sensor Failure
Cable disconnected or PT100
sensor faulty.
Check wiring and PT100
condition.
Over Pressure
The pressure setting is too high
or the pressure sensor is faulty.
Check pressure and pressure
sensor.
Pressure Sensor
Failure
Wire disconnected or reversed,
or the pressure sensor is faulty.
Check wiring and pressure
sensor.
Phase Lacking
Power supply phase lacking or
the motor contactor is faulty.
Check the power supply and
contactors.
Overloaded
Voltage too low, piping
blocked, bearing or other
mechanical failure or wrong
parameter setting.
Check the set parameters data,
power supply voltage, bearings,
piping and other mechanical
components.
Unbalance
Power supply unbalance,
motor contactor fault, or main
motor fault.
Check the power supply,
contactors and the main motor.
Wrong Phase
Sequence
Reversed phase sequence or
phase off.
Check the wiring
Overload or Rotor
locking during
starting
MOTOR DELAY TIME is
shorter than STAR-DELTA
TIME plus LOAD DELAY
TIME.
Reset the MOTOR DELAY
TIME or STAR-DELTA TIME /
LOAD DELAY TIME.
Main Contactor
activated
intermittently
The emergency button wire
loose.
Check the wiring
STOP
:
P SENSOR FAULT
Summary of Contents for MAM-870
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Page 8: ...Instruction Manual ZS100T ZS150T ZS200T Series II MAM 870 Senator Industrial Air Compressors 4...
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Page 41: ...INSTRUCTION MANUAL MAM 870 COMPRESSOR CONTROLLER...
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Page 58: ...NOTES...
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