Mitsubishi Electric MELDAS C6 Interface Manual page 109

B con-
Signal name
tact
—
UNCLAMP COMMAND
[Function]
This signal is output when movement of the axis selected as the index table indexing axis is
commanded.
[Operation]
When this signal turns ON, the index table indexing axis clamp is released by the ladder, and the
unclamp complete signal is set.
This signal turns OFF when movement of the index table indexing axis is completed.
The signal turns ON when:
•
Movement of the indexing axis is commanded during automatic operation.
This signal turns OFF when:
• Movement of the indexing axis is completed during automatic operation.
•
The axis movement is forcibly ended with reset or emergency stop, etc.
(Note 1) The index command will not turn OFF if the axis movement is interrupted with an interlock
or automatic operation pause, etc.
(Note 2) This signal
acceleration/deceleration has completed.
Thus, if the in-position has to be confirmed during the clamp/unclamp operation, confirm
with the PLC.
[Related signals]
Unclamp complete (Y455)
B con-
Signal name
tact
—
IN-POSITION nTH AXIS
[Function]
This signal informs the PLC that the control axis is in the in-position state.
[Operation]
This signal turns ON when:
(1) The control axis' acceleration/deceleration delay is zero, and the servo error (droop pulse) is
within the range set with the parameters.
This signal turns OFF when:
(1) The control axis' acceleration/deceleration delay is not zero.
(2) The servo error (droop pulse) is not within the range set with the parameters.
6. EXPLANATION OF INTERFACE SIGNALS
6.1 PLC Input Signals (Bit Type: X***)
Signal
abbreviation
is turned ON and
Signal
abbreviation
6-1-20
1st axis 2nd axis
X450 X470
OFF when the index
1st axis 2nd axis
X451 X471
3rd axis
X490
table indexing axis
3rd axis
X491