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Installation manual
CNC 8055
CNC 8055i
12.
LOGIC CNC INPUTS AND OUTPUTS
SOFT: V02.2X
General logic inputs
12.1 General logic inputs
/EMERGEN (M5000)
There are to ways to cause an emergency at the CNC, by activating the physical input /Emergency
stop or the general logic input "/EMERGEN" from the PLC.
CNC 8055 Pin 2 of connector X9 of the –Axes– module or –Axes Vpp– module.
CNC 8055i Pin 10 of connector X2.
When the PLC sets the "/EMERGEN" input low (0V), the CNC stops the axes and the spindle and
it displays the corresponding error message.
Also, the CNC activates the "/EMERGENCY OUTPUT" and "/ALARM" signals to let the outside
world and the PLC know that an emergency has occurred at the CNC.
The CNC does not allow executing programs and it aborts any attempt to move the axes or the
spindle while the "/EMERGEN" input is low (0V).
When the PLC brings the "/EMERGEN" input back high (24V), the CNC deactivates the
"/EMERGENCY OUTPUT" and "/ALARM" signals to let the outside world and the PLC know that
there is no longer an emergency at the CNC.
/STOP (M5001)
When the PLC sets this signal low, the CNC stops the part program, and maintains spindle rotation.
In order to continue executing the program, as well as setting this signal at a high logic level, the
general logic input CYSTART must be activated.
The treatment which this /STOP signal receives is similar to that given to the STOP key on the CNC
front panel keeping all the keys enabled even when the /STOP signal is at low logic level (0) .
These inputs must always be defined in the PLC program.
/EMERGEN (M5000) /STOP (M5001)
/FEEDHOL (M5002) /XFERINH (M5003)
Sample
I-EMERG AND (rest of conditions) = /EMERGEN
If the external emergency input is activated or any other emergency occurs, the general logic input
/EMERGEN of the CNC. When there is no emergency, this signal must remain high.
ELECTRICAL CABINET
/SALIDA
emergencyemergency
Sample
( ) = /STOP
There is always permission to execute the part program.
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