Monitoring The Brush Resistance; Setting The Cycle Time - Kerbl Duo 18810 Mode D'emploi

Figure 8: diagram of display card + sensor connection

4.3.1. Monitoring the brush resistance

The device monitors the current used by the motor and therefore checks the correct functioning of the cow brush.
If the gear motor is placed under too much strain, the brushes stand still and then move in the opposite direction.
This can occur if the animals lean to far too one side or if a tail gets wound up in the mechanism.
If this occurrence is repeated more than five times, with the period between events being less than 5 seconds, the
control card triggers an alarm, the display shows fault "A03" and the machine switches to its alarm state for 3 minutes.
(= Motor does not run)
The resistance threshold (= switch-off resistance) can be adjusted using the black dip switch element (item 1, Fig. 7) on
the control card. When carrying out this change, a qualified electrician should always be consulted who can ensure the
safe opening of the control box. (Table inside the control box).
The adjustment of the values should only be carried out when the machine is disconnected from
the power supply.
The threshold setting is lowest at setting F00 and highest at F15. (Table inside the control box). If the setting is too high
or too low for your animals, here is where you can adjust it.
Caution:
the setting must always be made according to the type of herd being cleaned. If the setting is too
high, the cattle may sustain injuries. The responsibility for this setting lies with the customer.

4.3.2. Setting the cycle time

The cycle time is set at the factory to 60 seconds. If necessary, this can be adjusted using the dip switch element on the
display card (item 2, Fig. 8) from 7.5 - 120 sec. (Table inside the control box).
Once the machine has been restarted (connected to the power supply), the changes will take effect and will be briefly
shown on the display.
2
1. Dip Switch element
2. Dip Switch element on display card
3. LED DL 1
4. LED DL 2
5. Fuse 6,3 A
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