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5.0 Switch Gear
5.1 The Padlockable Isolator
When this switch is in the OFF position, the machine is effectively
isolated from the electrical supply to allow personnel safe access for
maintenance or repair work and to prevent dangerous restarts. In
order to prevent unauthorised use of the machine the switch can also
be secured in the OFF position using a padlock.
To operate the machine for the first time, turn the isolator to the ON
position.
5.2 Start / Stop Buttons
The cutterblock motor is then started by pushing the green (power on) button on the starter
panel, and stopped using the red (power off) button. The mushroom headed lock-off stop
switch, once pressed will remain locked in the off position. To restart the machine it is
necessary to release the off button by twisting it in a clockwise direction. Carry out a functional
test of this button works after installation and prior to first machining.
5.3 Circuit Protection
In case of a mains failure, the starter is fitted with no volt release protection and will not
restart without being switched on again. On restart, always ensure that the brake is released.
The starter is also fitted with an overload protection device. An electrical overload occurs
where an electric motor is subjected to a greater load than it was designed for. This can be
caused by short circuit, by incorrect installation or by misuse (including poor machine
maintenance). The in-built breaker will therefore help prevent damage to the motor should
such a situation occur. The motor cannot be restarted until the breaker has reset itself.
5.4 Optional Emergency Foot Operated Stop Switch
This switch is provided for use in emergency situations only. We do not
recommend that it is used in lieu of the mushroom headed lock-off stop
switch on the front of the starter panel.
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