Yaskawa YASNAC PC NC Connecting Manual - Manual (Page 64)

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YASNAC PCNC Connecting Manual Chapter 5: Connection of Power ON/OFF Excluisve Signal
5.3.2 Emergency Stop (*ESP) Input
When the emergency stop input circuit is opened, the controller stops all of the actions and
turns SVMX and BKX Off. During emergency stop of the general purpose I/O module, it
makes output (*ESP) “open”.
In response to the emergency stop input, the servo should DB stop, and the spindle stop with
brake using the delay circuit. (The spindle coasts after the main connector 1MC is “opened”
by the delay timer).
5.3.3 External Power ON/OFF (ECON, EOF, ECOM) Input
The controller may be turned ON/OFF by external input just like through the POWER ON/
OFF push button on the PCNC operator panel.
Setting the portion between EON and ECOM “closed” is like when the EOF and ECOM is
“closed” turns ON the logic circuit of the controller or the servo power.
Setting the portion between EON and ECOM “open” turns OFF the logic circuit of the
controller or the servo power.
EON input
EOF input
*ESP input
SVMX output
Servo ready
BKX output
MRD input
completed
pm5400
pm5400
Alarm code
“3000” “2900”
“3302” “3000” “RDY” “RDY”
FIGURE 5.3.1.1 Power ON Sequence of Servo with PCNC Unit