DOL 635 • DOL 639
46
User Manual
When the problem is solved, you can run manual feeding or wait for the feed
program’s next feeding.
Feed weigher
No feed to feed weigher
The alarm is triggered when the feed weigher determines that no feed is com-
ing from the silos. The function can be connected and disconnected.
In the event of an alarm, the production controller deactivates the silo auger.
In
Time before alarm
set how much time shall pass before the controller trig-
gers an alarm.
The alarm remains active until the feed weigher is able to register feed again.
When the alarm is acknowledged, the silo auger starts again.
It is possible to set the silo auger to run and stop alternately for shorter periods
after the alarm has been acknowledged. When the silo auger is pumping, feed-
ing may possibly start again, if the stop was due to a bridge formation in the
silo.
The pump function can be overridden by setting the
Stop time silo auger
to 0
minutes. This way, the controller will ensure that the silo auger stays turned off
until the feed demand sensor is manually removed and reconnected. The pro-
duction controllerrs will then activate the silo auger once in the set runtime
(
Runtime silo auger
).
Missing feed type
One of the feed components included in the mixing program is not available in
any of the silos.
Check the status of silos and change type of feed in the production controller,
as required.
Feed weigher cannot empty
Feed cannot be discharged from the weigher.
As to the drum weigher, the drum cannot turn or the stop position cannot be
found.
Weigher calibration failure
The calibration of the feed weigher was not finished within the set period of
time.
Weigher not stable
The feed weigher cannot carry out a stable weighing process. This may be
caused by vibrations.
Reference voltage
The production controller has registered that the reference signal from the
weigher is less than 9.0V in a given period of time.
Feed separation shutter not
in correct position
The weigher wants to change to the other house but the distribution shutter
does not react. Applies only when two production controllers share one
weigher.
Feed alarm
Not enough feed at start
The alarm must ensure that the feeding system is in order when feeding
restarts after a stop.
As a main rule, the alarm limit should be set to 10 kg (
Feed consumption in
given check interval
).
For chain feeding, monitoring time may not exceed the time for a chain rota-
tion.
An alarm is generated if consumption at the start of a feeding period (or at the
start of chain feeding) is lower than indicated in the period of time selected
(
Time for alarm check
).
Can be disconnected automatically during the first days of a batch (
Begin to
check at day number
).
