Mitsubishi Electric M80V Series Manual page 415

M800V/M80V Series PLC Interface Manual
4 Explanation of Interface Signals
4.3 PLC Output Signals (Bit Type: Y***)
Cont. Signal name
A NC axis/PLC axis switchover request
[Function]
This function switches the control mode for the NC axis/PLC axis switching axis (whether to use the axis as an NC axis or
a PLC axis).
This signal is available for each control axis.
[Operation]
Turn ON this signal to control the NC axis/PLC axis switchover axis as a PLC axis, or turn OFF the signal to control the
axis as an NC axis. Confirm that the "NC axis/PLC axis switchover invalid status" signal is OFF before switching ON/OFF
of this signal.
When the NC axis and the PLC axis is switched while the "NC axis/PLC axis switchover invalid status" signal is ON, the
operation error (M01 1250) occurs. After that, when the "NC axis/PLC axis switchover invalid status" signal turns OFF, the
control is switched and the alarm is canceled. If this signal is switched while the axis is moving, the control is switched at
the time when the movement command is completed and the "NC axis/PLC axis switchover invalid status" signal is turned
OFF.
[Operation sequence]
NC axis/PLC axis switchover request
(NPCHGREQn)
NC axis/PLC axis switchover invalid status
(NPCHGISn)
Feedrate
0
NC axis/PLC axis switchover in process
(NPCHGMODn)
In NC axis control
(1) The "NC axis/PLC axis switchover request" signal is switched from OFF to ON, and the "NC axis/PLC axis switchover
invalid status" signal is turned OFF (switching is permitted). Therefore, the control is switched to PLC axis and the
"NC axis/PLC axis switchover in process" signal is turned ON.
(2) The "NC axis/PLC axis switchover request" signal is turned OFF, but the "NC axis/PLC axis switchover invalid status"
signal is ON (switching is prohibited). Therefore, the control does not move to NC axis and the operation error (M01
1250) occurs.
(3) The axis movement is completed and the "NC axis/PLC axis switchover invalid status" signal is turned OFF. Then the
control is switched to NC axis, and the "NC axis/PLC axis switchover in process" signal is turned OFF.
[Related signals]
(1) NC axis/PLC axis switchover invalid status (NPCHGIS1 to 8: XBA0 to 7)
(2) NC axis/PLC axis switchover in process (NPCHGMOD1 to 8: XBC0 to 7)
IB-1501616-D
Abbrev.
NPCH-
YBC0 to 7
GREQ1 to 8
(1)
402
$1 $2 $3
YBC8 to F YBD0 to 7
In PLC In NC
axis control axis control
(2) (3)
$4
YBD8 to F