Mitsubishi Electric MELDAS C6 Interface Manual page 234

B con-
Signal name
tact
—
ERROR DETECT
[Function]
Machine motion is stopped momentarily in transition from a cutting feed block to other block during
automatic operation to provide time for determination whether in-position check is made or not
before start of the next block.
Block-to-block transition may cause rounding in cutting because of delay caused by acceleration or
deceleration, and servo response delay. Rounding can be eliminated by stopping the machine
motion between the blocks by turning the "Error detect" signal (ERD) ON.
[Operation]
When this "Error detect" signal (ERD) is ON in block-to-block transition during cutting in automatic
operation, in-position check is accomplished. If the signal is OFF, the next block starts after
completion of the preceding block without stop.
Error detect (ERD)
Axis motion
The next motion starts
without stop.
(Note 1) In general practice, the signal (ERD) is turned ON and OFF using an appropriate
miscellaneous function (M code, etc.) so that command program can determine whether
machine motion should be stopped or not. When the signal is ON, the status is same as
the case where G09 is specified by the command program. Consequently, it is
recommended to use G function unless otherwise required especially.
6. EXPLANATION OF INTERFACE SIGNALS
6.3 PLC Output Signals (Bit Type: Y***)
Signal
abbreviation
ERD
Y axis cutting
X axis cutting feed
OFF
X axis
Y axis
1st system
Y717
X axis cutting feed
feed
ON
Y axis
6-3-37
2nd system 3rd system
Y7F7 Y8D7
X axis
The next motion starts
after stop.