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V125T/July 2020/V1.1
5.2.2
Motor NVR Switch
The Motor NVR Switch (image 13
–
item 2) operates the motor spindle.
NVR = No Volt Release
–
The motor switch has an undervoltage release mechanism to switch off the
motor if the supply voltage reduces. The switch must be manually reset when the power is retuned,
this is a safety feature.
There are two buttons.
1.
GREEN
marked with the symbol ‘I’ this will START the motor unit.
2.
RED
marked with the symbol ‘0’ this will STOP the m
otor unit.
The GREEN-START button is lower and is shrouded to prevent unintentional operation or start up.
The RED-STOP button is raised and unshrouded so it can be quickly accessed in case of emergency.
The motor switch will not switch on if the magnet switch is in the OFF position.
The motor switch will not latch on if the magnet protection fuse has blown.
5.2.3
Spindle Direction Switch
The Spindle Direction Switch allows the direction of the spindle/motor to be reversed.
This is a 3-position rocker switch.
1.
Up
Direction Forward - Normal cutting direction
2.
Centre
No direction - Power to motor is interrupted.
3.
Down
Direction Reverse - Reverse for operations such as tapping.
This switch SHOULD NOT be operated whilst the spindle is in motion.
To change the direction of the spindle during cutting, such as during tapping the following sequence
should be followed.
1)
Spindle is rotating in forward direction.
2)
Press STOP
‘O’ on the motor switch.
3)
WAIT until motor spindle has STOPPED.
4)
Change direction switch to reverse position.
5)
Press START
‘I’
on the motor switch.
5.2.4
Magnet Protection Fuse
The Magnet Protection Fuse protects the magnet from supply issues when being used on site.
If the fuse blows it indicates either a problem with the supply or a problem with the magnet.
If the magnet protection fuse blows machine should be checked by qualified service personnel.
