WABECO CC-F1220 hs, Руководство по эксплуатации, Страница: 9 / 78

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1.5 Safety features
1. Important safety notes
In order to allow for safe working with our machines, we have provided the following safety installations
and thus comply with the relevant European safety requirements
■
Machine safety cabin
In CNC mode, the door to the machine safety cabin must be closed in order for the milling
machine to work in CNC operation.
■
ON/OFF switch with under-voltage trigger
The ON/OFF switch is fitted with an under-voltage trigger, thus, in the event of a power
failure, the machine does not switch itself back on automatically. This prevents risks caused
by the unexpected motion of the tool spindle.
■ Emergency off switch
The emergency off switchacts to quickly stop the machine.
■
Overload protection
The machine is fitted with an overload protection feature. This overload protection feature
switches the main drive motor off automatically when the machine is overloaded.
The machine can only then be switched on after a waiting period.
■ Switch for operational modes
The switch for operational modes has 3 settings (CNC operation - zero setting - set-up mode)
which can only be selected via a key. Once the operational mode has been selected, the key
can be removed which prevents unauthorised changing of the operational mode.
Working in CNC mode
is only possible with a closed door . The door is locked as soon as the
main spindle starts. If the door is open, the main spindle cannot be started.
Working in set-up mode can be executed while the door is open. The switch for operating
modes has to be set to set-up mode.
The main spindle can thus be activated by closed as well as open door.
■ Pressure monitor
The compressed air supply for the machine and/or the required systems pressure is checked
by the pressure monitor. If the systems pressure drops below the critical value for any
reason (e.g. burst hose), the machine automatically switches to failure. The machine can
only be restarted once the error has been removed.