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ALFRA 18850 Manuel D'utilisation page 16

Perceuse à socle magnétique
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Magnet sensor LED
The LED above the operating panel signals the state of the machine and the holding of the magnet.
LED off
LED green
LED red
LED red
Motor emergency stop
The core drilling machine has an automatic emergency stop features for the motor. If the magnet is lifted off the
ferromagnetic surface by excess load, vibration or any other cause during work with the motor running, there is an
air gap under the magnet. As soon as the magnet is no longer touching the surface, the motor is automatically
deactivated and the magnet LED lights up red constantly.
However, the motor is not braked.
It is only possible to restart the machine after having switched the magnet on and off.
Deactivating the sensor and the automatic motor emergency off
Depending on your core drilling machine model, it is possible to deactivate the sensor and its safety function briefly.
If the signal LED should be lit red permanently with the magnet switched on during one of your applications, this is
due to the magnetic field for the sensor being too weak in the first coil of the magnet.
Press the MOTOR-OFF key for 2 seconds in order to deactivate the sensor and its protective functions such as
motor emergency stop briefly.
As soon as the LED is no longer lit, you can switch the motor on.
All manuals and user guides at all-guides.com
Magnet off
Motor off
Magnet on and sufficient holding force
Motor can be switched on/off as required
Magnet on and very low holding force. Only work with a very low feed rate
Motor can be switched on/off as required
Magnet on and holding force too low
Motor cannot be activated or motor emergency stop.
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