4.3.1. Monitoring the brush resistance
The device monitors the current used by the motor and therefore checks the correct functioning of the electric scratch
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 6 seconds, the control
card triggers an alarm, the display shows fault "5" and the machine switches to its alarm state for 4 minutes.
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.
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 ( - ) and highest at (+ ). If the setting is too high or too low for your animals,
here is where you can adjust it.
4.3.2. Setting the cycle time
The cycle time is set at the factory to 90 seconds. This value cannot be adjusted.
4.3.3. Explanation of display symbols and LEDs
Description of display messages:
Display
Description
No display
No mains voltage
Dot
Flashing, machine ready
r
Motor running in normal rotational direction (right)
L
Motor running in inverted rotational direction (left)
1
Overvoltage alarm – over 270 V or over 140 V
2
Undervoltage alarm – under 180 V or under 85 V
3
Control card overheating alarm (> 75 °C)
4
Motor disconnected / blown / power cable for motor defective alarm
5
Motor blocked alarm
There are 2 LEDs on the control card
Designation
DL1
DL2
DL2
4.3.4. Reading the force setting and the operating hours
• Disconnect the brush from the power supply and reconnect it.
• The number 2 will appear on the display.
• Then the letter t and a number between 90 and 95. These show the setting of the brush resistance.
• Now the letter H will be shown and then a sequence of numbers showing the machine's operating hours.
• At the end, a flashing dot indicates the brush is ready to use.
Colour
Description
red
Mains voltage present
green
stays lit: tilt sensor in the resting position
green
not lit: tilt sensor triggered (brush in use)
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