HTC 420 VS Podręcznik - Strona 35

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HTC 420 VS
Error code
Cause
OPF
OPF = Motor phase break
Occurs when the motor plug has
not been plugged in correctly or is
loose. The fault may also be due
to the plugs or the terminal boxes
in the motor being loose. May also
occur if the machine goes into
overspeed during, for instance, test
operation with the grinding disc in
the air.
SLF
SLF = Faulty connection of remote
terminal.
Occurs if connection to a remote
terminal is faulty. May also be due
to an internal fault.

7.2. Resetting the frequency converter

1.
2.
3.
4.
Tip!
The machine will not start if the Grinding knob is in the "FWD"
mode when switching on the power.

7.3. Checking the last error code

1.
2.
3.
4.
5.
6.
2.0
Switch off the machine by turning the Power knob to "O".
Wait until the display switches off.
Reset the emergency stop switch.
Start the machine by turning the Power knob to "I".
Press and hold ESC until four dashes (----) are shown in the
display.
Press ENTER when rdy (ready) is shown. SET is then
shown in the display.
Press "arrow down" until SUP is shown in the display.
Press ENTER. FrH is shown in the display.
Press "arrow down" until LFt is shown in the display.
Press ENTER. The last error code is shown.
Electronic error codes
Action
Inspect the cable to the motor or the
terminal boxes in the motor. Reduce
the speed if you are test-operating
the machine in the air. The fault
occurs if the motor current is around
approx. 8% of the converter's
nominal current, which is 11 Amp
on 2.2 kW single phase.
Restart the computer. If the fault
remains, contact HTC Service
Centre.
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