Mitsubishi Electric M80V Series Manual page 425

M800V/M80V Series PLC Interface Manual
4 Explanation of Interface Signals
4.3 PLC Output Signals (Bit Type: Y***)
Cont. Signal name
B Cutting block start interlock
[Function]
This signal prohibits start of an axis motion command block other than that for positioning in automatic operation (memory,
MDI or tape).
[Operation]
While the "Cutting block start interlock" 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.
Automatic operation is not suspended. Since a command for the next block is waiting validly, execution of program starts
when the "Cutting block start interlock" signal (*CSL) turns ON.
Note
(1) This signal is valid to all blocks including blocks internally generated in controller by fixed cycle, etc.
(2) 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.
[Related signals]
(1) Block start interlock (*BSL: YC13)
Cont. Signal name
A Dry run
[Function]
Feedrate in automatic operation is specified by manually set value instead of program command value (F value).
[Operation]
<The "Dry run" signal given during cutting feed>
 When the "Rapid traverse" signal (RT) 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 the "Rapid traverse" signal (RT) is OFF, the manual feedrate (*JV1 to *JV16) is applied.
Cutting feed override will also be valid if the "Manual override method selection" signal (OVSL) is ON.
<The "Dry run" signal given during rapid traverse>
 The parameter must be turned ON to enable dry run for rapid traverse (G0, G27, G28, G29, G30).
 When the "Rapid traverse" signal (RT) is ON, the "Dry run" signal is ignored.
 When "Rapid traverse" signal (RT) is OFF, the speed is equal to manually set speed.
Note
(1) Dry run is not applicable to manual operation.
(2) Dry run is valid even during G84 or G74 operation.
<Dry run of thread cutting>
 Whether to enable or disable dry run for thread cutting is set with "#1279 ext15/bit4" (Dry run OFF during thread cut-
ting).
When "#1279 ext15/bit4" (Dry run OFF during thread cutting) is set to "1", dry run is disabled. However, while the "Spin-
dle OFF mode" signal is ON, dry run is enabled regardless of the parameter setting, and the state of dry run follows the
"Dry run" signal.
 The feedrate by the dry run is not synchronized with the spindle rotation.
 The "Dry run" signal is checked at the start of thread cutting. If the signal is changed during thread cutting, the change
is ignored.
[Related signals]
(1) Manual feedrate code m (*JV1 to *JV16: YC70)
(2) Rapid traverse (RT: YC26)
(3) Manual override method selection (OVSL: YC59)
(4) Spindle OFF mode (YCD3)
IB-1501616-D
Abbrev. $1 $2
*CSL YC14 YD54 YE94
Abbrev. $1 $2
DRN YC15 YD55 YE95
412
$3 $4 $5 $6
YFD4 Y1114 Y1254
$3 $4 $5 $6
YFD5 Y1115 Y1255
$7 $8
Y1394 Y14D4
$7 $8
Y1395 Y14D5