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8.2 Error & service messages:
If a problem is detected, an error message appears in the status bar:
Error detected:
Mains AC failure :
The power supply is not stable. The machine s PLC detects problems or disturbances at the
AC power supply line.
If the power supply is not stable or if severe disturbance signals are detected, the machine
will go to interrupt mode.
The mains supply is continuously detected and an error will automatically be reset when
power supply works normally again. Possible cause:
•
Power socket or mains cable problems. If there is a bad connection voltage will fall and
cause failure detection. Start with simple things, like checking power supply cable
and/or socket.
•
Earth lead is not 0V (ground): If a voltage potential is detected on earth lead, it will
generate an error. Check the power supply cable and/or power outlet socket.
•
Power supply is unstable, above or below rated voltage. The power supply is a multi-
voltage type, but many internal components require a specific voltage to work normal.
Example heater element, fan & air pump. To protect the machine from damage and/or
unstable operation, it will remain in interrupt mode until the power supply is stable.
Check voltage with a True RMS digital multimeter.
Disturbance! :
•
Severe disturbance on the mains power supply. The electronics uses both electronic
and software-controlled filters to protect from disturbing signals, reactive and magnetic
load disturbances. At some bad conditions, the internal filters are unable to clean
signals from disturbances, and the machine will go to interrupt mode. This may happen
if the power supply frequency is undetectable if many devices containing coils are used
on the same power supply line. This generates high peak reactive load currents which
may cause interference. This requires an advanced check with special instruments.
•
Mains frequency disturbance. Normal frequency is 50Hz ( many other regions),
or 60Hz (USA/Canada + regions in Asia & South America). Normally, frequency should
never fluctuate, but if power supply is unstable, frequency may fluctuate. Many internal
components are controlled using zero-cross detection and are therefore sensitive for
frequency problems. The machine will go to interrupt mode if the frequency is unstable.
Requires an advanced check with special instruments.
Summary of Contents for K1 HAZER
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