Mitsubishi Electric MELDAS C6 Interface Manual page 304

[Operation]
When this override function is used, the true feedrate is the product obtained by multiplying
commanded feedrate (F) by "1st cutting feedrate override" ratio and "2nd cutting feedrate override"
ratio.
Since the least increment of 2nd cutting feedrate override is 0.01%, override setting "10000"
corresponds to 100%.
The override ratio is fixed to 100%, irrespective of 1st cutting feedrate override setting, under the
following condition:
(1) "Override cancel" (OVC) signal is ON
(2) During tapping in fixed cycle
(3) During TAPPING mode
(4) During thread cutting
Only when override setting is 0%, override is exerted even on rapid traverse speed in
(Note)
automatic operation. That is, cutting feed as well as rapid traverse stop if the 1st override
feedrate is set to 0% during automatic operation. When override setting is 0%, "M01
OPERATION ERROR" appears in the alarm display section of CRT screen, and "M01
OPERATION ERROR 0102" in the ALARM DIAGNOSIS display.
[Related signals]
(1) Cutting feedrate override (*FV1~*FV16: Y760~764)
(2) Cutting feedrate override method select (FVS: Y767)
(3) 2nd cutting feedrate override (file register)
(4) 2nd cutting feedrate override valid (FV2E: Y766)
For relationship among these signals, refer to the description about the cutting feedrate override.
B con-
Signal name
tact
RAPID TRAVERSE
—
OVERRIDE
(File register method)
[Function]
The rapid traverse override specified with values (ROVS) provides the override control within the
range of 0% to 100% by 1% increments in addition to the normal override specified with codes
(ROV1, ROV2). The value is set in the file register (R) in binary.
[Operation]
During rapid traverse in the automatic or manual operation, the actual feed rate will be the result of
multiplying this override ratio by the rapid traverse speed set in a parameter.
(Note 1) The override will be clamped at 100%.
(Note 2) No operation error messages are indicated even if the value is set to 0%.
[Related signals]
(1) Rapid traverse speed override (code method: ROV1, ROV2: Y768, 769)
(2) Rapid traverse override method select (ROVS: Y76F)
6. EXPLANATION OF INTERFACE SIGNALS
6.4 PLC Output Signals (Data Type: R***)
Signal
abbreviation
6-4-14
1st system 2nd system
R902 R1002
3rd system
R1102