Yaskawa YASNAC PC NC I/O Signal Function Manual - Manual (Page 73)

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YASNAC PCNC I/O Signal Function Manual Chapter 9: Automatic Support Functions
9.1 Servo ON Monitor Output Signal
The servo ON monitor outptu signal is “closed” when the SVMX (servo power ON) output
signal of the power supply circuit is “opened”.
This signal can be used for reading the servo power ON status by the programmable controller.
9.2 Brake ON Monitor Output Signal
The brake ON monitor output signal is “opened” when the brake release
output signal BKX of a vertical axis is “opened” in the power ON sequence.
This signal can be used for reading the brake reease information by the programmable con-
troller.
9.3 External Servo ON Input Signal
When the power is turned ON by the operator (either by inputting the corres-
ponding signal or pressing the servo switch on the PCNC operation panel),
the second power ON sequence is executed-the servo power of the PCNC
is turned ON and the system is set for operation after confirmation of the
ready state by the PCNC. This second power ON sequence is triggered by
pressing the power switch again or the external servo ON signal (SVON)
input by the PLC.
IMPORTANT!
The SVON Signal is valid when pm5012D0 = ON.
Servo ON Monitor Output Signal SVONS #35030
Brake ON Monitor Output Signal BK #35031
External Servo ON Input Signal SVON #30050
SVMX
SVONS
BK
BKX