Relation With Other Functions - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.3 Thread Recutting

14.3.3 Relation with Other Functions

 Fixed cycle for turning machining
Thread recutting can also be performed with the thread cutting cycle (G78) of the fixed cycle for turning machining.
 Compound type fixed cycle for turning machining (type II)
Processing at the same finishing state for thread recutting can be performed when the finished state of compound type
fixed cycle for turning machining (G76) is stored.
If information was stored at the rough processing state, threads may not be cut correctly.
 Continuous thread cutting
Store the position at the thread grooves cut during the first block of continuous threading while performing continuous
thread recutting.
Threads may not be cut correctly when the position is stored for the thread grooves from the second block.
 Shift amount at start of thread cutting
Handling of the shift amount at the start of thread cutting during the thread recutting operation changes depending on the
setting of "#1258 set 30/bit5".
Refer to "14.3.2.7 Handling of the Shift Amount (Q Command) at the Start of Thread Cutting During the Thread Recutting
Process" for more information.
 Thread cutting cycle retraction
The retract operation can also be performed during thread recutting if thread cutting cycle retraction is enabled.
 Variable lead thread cutting
When the initial thread cutting command is a variable lead thread cutting command during cycle operation that has enabled
thread recutting while "#1258 set 30/bit6" is set to "0", the operation error (M01 1027) is generated. When the second and
following thread cutting command is a variable lead thread cutting command during cycle operation that has enabled thread
recutting, the operation error (M01 1027) is not generated, and variable lead thread recutting can be performed.
When the variable lead thread cutting command during cycle operation that has enabled thread recutting while "#1258 set
30/bit6" is set to "1", the operation error (M01 1027) is generated.
 Variable feed thread cutting
Thread recutting can also be performed for variable feed thread cutting.
 Arbitrary axis exchange control/mixed control (cross axis control)
Thread recutting can be performed during axis exchange, but the axis exchange cannot be performed for thread recutting
lead axes. When there are no lead axes when a thread cutting command is output during thread recutting, the operation
error (M01 1027) is generated.
 Mirror image
Do not apply mirror images (mirror image by parameter setting, mirror image by external input, mirror image for facing tool
posts, and T code mirror image for facing tool posts) for thread recutting lead axes. Thread recutting may not be performed
correctly.
 Spindle override during thread cutting
Spindle override is enabled during both thread recutting and thread cutting.
 Dry run
You can enable and disable dry runs with "#1279 ext 15/bit4" even during thread recutting operation.
 Multiple-spindle control I/II
- "#1258 set 30/bit4" = "0"
Multiple-spindle control I/II can also be performed when performing thread recutting from the HMI.
- "#1258 set 30/bit4" = "1"
Only multiple-spindle control II can be performed when operating thread recutting from the ladders. Thread recutting is
not enabled for multiple-spindle control I.
585 IB-1501668-B