Troubleshooting - HTC 650 HDX Manual

Troubleshooting

The grinder does not go into standby mode when the
key is turned
Check that the grinder has the correct feed, that all
fuses are intact and that the earth fault breaker has not
tripped. Try putting the grinder in standby mode without
connecting it to the mains. If this is not possible, a fuse in
the grinder's electrical cabinet needs replacing.
The grinder does not start but remains in standby
mode
Check for error messages (see pages 27-32) and
accompanying actions on the frequency converter display.
The machine shuts down when I run it
Check for error messages (see pages 27-32) and
accompanying actions on the frequency converter display.
The overload lamp lights as soon as I try running a bit
faster
The overload lamp will give a warning to the operator
when he exceeds the motor's rated current. The
frequency converter can give more power than the motor
can handle, but will shut down after a while to protect the
motor from damage. Things that influence whether the
overload lights or not include speed, mains voltage and
the position of the weights on the grinder.
The grinder runs unevenly
If the grinder runs unevenly, this could be due to the
grinding holders being worn or a belt needing to be
replaced.
The machine runs evenly but leaves different grinding
patterns.
This may happen if the upper belt has come off. Test by
spinning the large disk that holds all the small grinding
disks. If it spins freely the upper belt has come off and
must be replaced.
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