5.4.1 Wiring example for 'CNC ready' relay
DANGER!
Injuries due to uncontrolled operation!
An inactive 'CNC Ready' signal represents a safety
related situation. The "CNC Ready" relay is switched
off when the PA CNC control unit is in a situation
where the axes' movements are not controlled.
As the axes may continue to move in an uncontrolled
manner, the contacts of the "CNC Ready" relay must
be used to disconnect the machine's emergency stop
safety chain. All actions necessary for safety must be
executed in the same way as when the
Emergency Stop button is pushed.
n Properly integrate the 'CNC ready' relay into the machine's
emergency stop chain.
The contacts for 'CNC Ready' and 'Power OK' are available on
connector X19 (see Fig. 45).
Fig. 45: Wiring example 'CNC ready' relay
4 connector X19 pin 4
6 connector X19 pin 6
Emergency Stop Interlocking
Schematic (Suggested Wiring)
PA 8000 EL CNC control unit
Installation
24.09.2015 | 82
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