Fault Diagnosis - HE-VA AC-LITE User Manual

HE-VA Auto-Controller AC-Lite - May 2016

9.2 Fault Diagnosis

Condition
When in work and moving, the Instrument
displays 'C.out' and beeps every 5
seconds
When in work the instrument flashes
'ALAr' and beeps.
When in work the instrument defaults to
the rate channel, displays 'FaiL' and beeps
every 30 seconds. The metering roll does
not turn.
When in work the instrument defaults to
the rate channel, displays 'StAL' and
beeps every 30 seconds. The metering
roll does not turn.
When in work the instrument defaults to
the application rate channel, flashes a rate
lower than the target and beeps
continuously.
When in work the instrument defaults to
the forward speed channel, the speed
display flashes and beeps continuously.
24
Possible reasons
The forward speed is above 2km/h while
the Multi-Seeder is out of work.
The cutout switch is not operating correctly
when the implement is lifted or lowered.
Hopper level is low.
The metering motor has stopped due to an
internal fault with the motor or the encoder,
or the external power supply.
First switch the instrument off and back on
to try and clear the fault. Otherwise, check
the wiring connections (both power supply
and encoder) and try again.
The metering motor has stalled. It has
automatically stopped to prevent further
damage.
Investigate the metering mechanism.
The application rate is low because the
forward speed is too high and the target
motor speed cannot be achieved.
Reduce your speed or change the metering
roll and recalibrate.
Forward speed is too low. The metering roll
is at its minimum possible rpm.
Increase your speed, or if this would be too
fast, change the metering roll and
recalibrate.
If you find that the minimum forward speed
is too high at low application rates you
should change the feed roll to a lower
volume roll and redo the product
calibration.