ALFRA ROTABEST RB 35 SP Manual De Instrucciones página 17

MAgnET SEnSOR LEd On ThE hOuSing
A magnet sensor LED showing the state of the machine and the adhesive force of the magnet is situated on
the housing of the drilling machine.
LED off
LED green
LED red
LED red
MOTOR EMERgEncy STOP
The core drilling machine has an automatic emergency deactivation for the motor (MOTOR EMERGENCY STOP).
If the magnet is lifted off the ferromagnetic surface by excess load, vibration or any other cause during work
with the motor running, an air gap occurs underneath the magnet. As soon as the magnet is no longer touching
the surface, the motor is automatically deactivated and the magnet sensor LED lights up red constantly.
The motor though will not be slowed down!
dEAcTiVATing ThE SEnSOR And ThE AuTOMATic MOTOR EMERgEncy STOP
Depending on your core drilling machine model, it is possible to deactivate the sensor and its safety
functions such as MOTOR EMERGENCY STOP 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 briefly.
As soon as the LED is no longer lit, you can switch the motor on.
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 ; work only with very low feed
Motor can be switched on/off as required
Magnet on and insufficient holding force
Motor cannot be activated or MOTOR EMERGENCY STOP
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