CUTTING BLOCK START
This signal prohibits start of an axis motion command block other than that for positioning in
automatic operation (memory or MDI).
While the signal (*CSL) is OFF, execution of an axis motion command block other than that for
positioning may not be started in automatic operation. When the signal is given during execution of
a block, the execution of the block continues until it is completed. Since the signal does not cause
stop or suspension of automatic operation, execution of program starts when the signal is turned
(Note 1) This signal is valid to all blocks including blocks internally generated by fixed cycle, etc.
(Note 2) In C6/C64, the signal (*CSL) is ON when the power is turned ON. When the signal is not
used, programming on the PLC is not required for this signal.
(1) Block start interlock (*BSL: Y713)
Feedrate in automatic operation is specified by manually set value instead of program command
value (F value).
(1) DRY RUN signal given during cutting feed
• When "Rapid traverse command" (RT) signal is ON, the cutting feedrate is equal to the
maximum cutting feedrate.
In this case, "cutting feedrate override" and "rapid traverse override" are ignored.
• When "Rapid traverse command" (RT) signal is OFF, the set manual feedrate (*JV1~*JV16)
will apply. Cutting feed override will also be valid if the manual override valid (OVSL) signal is
(2) Dry run signal given during rapid traverse
• The parameter must be turned ON to validate dry run for rapid traverse (G0, G27, G28, G29,
• When "Rapid traverse command" (RT) signal is ON, the DRY RUN signal is ignored.
• When "Rapid traverse command" (RT) signal is OFF, the speed is equal to manually set
(Note 1) Dry run is not applicable to manual operation.
(Note 2) Dry run is valid even during G84 or G74 operation.
(1) Manual feedrate (*JV1~*JV16: Y770~774)
(2) Rapid traverse command signal (RT: Y726)
(3) Manual feedrate override valid signal (OVSL: Y759)
6. EXPLANATION OF INTERFACE SIGNALS
6.3 PLC Output Signals (Bit Type: Y***)