5
DIAGNOSTICS
The appliance is equipped with an APC
automatic
protection
activated when operating faults occur on the
5.1
Description of Diagnostic Warnings
5.1.1
Appliance Powered Without Pedal Consent
• Green LED lit: Correct operation.
• Green and red LED flashing
alternately: Incorrect installation:
potentiometer not connected.
• Green and red LED lit: Indicates that the
general protection was activated during
5.1.2
Appliance Powered With Pedal Consent
• Green LED lit: Correct operation.
• Green and red LED lit: current limiter in
operation.
• Green and red LED flashing
alternately: Incorrect installation:
• Power supply too low;
• Power supply too high;
• Potentiometer not connected.
circuit
which
is
components, and a two-coloured diagnostic
LED (green and red), positioned on the board,
which indicates when the module is powered.
the last cycle.
• Green LED lit and red LED flashing:
Indicates that the failed tuning scan
protection was activated during the last
cycle.
• Red LED steadily lit: General protection
tripped:
• Handpiece not connected to the
cord;
• Tuning circuit malfunction;
• Broken wire in the cord;
• Faulty Handpiece.
• Red LED flashing: Failed tuning scan
protection tripped:
• Insert not present or not properly
tightened on the handpiece;
• The insert is worn, damaged, or
deformed;
• Handpiece/cord electrical contacts
wet.
DIAGNOSTICS
25
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