41
When the instrument is properly connected to the power mains and a chopper
head, and the unit is turned on, the front panel LEDs will blink and the dis-
play will show ‘PASS’ before recalling the last control set up. The motor
should begin turning and come to speed within about 1 minute.
If nothing happens
Check that the power cord is connected at the power entry module.
Check that the chopping head is connected to the control unit. Do not con-
nect the chopping head when the control unit is powered.
Fuse
Check the fuses in the power entry module. Disconnect the power cord at the
power entry module. Open the cover of the power entry module using a small-
blade screwdriver or similar tool. Slide the fuse holders out and examine the
fuses. Replace a blown fuse with the appropriate type and current rating. (For
additional details, see page 44.)
Mains Voltage
Make sure that the power entry module is set for the correct mains voltage. To
set the mains voltage, refer to AC Operating Voltages (page 43).
Fails test at start up
This indicates a failure of the battery-backed memory. Consult with the facto-
ry for a replacement battery. Instrument settings will not be maintained when
power is removed.
IX
Troubleshooting
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