Mitsubishi Electric MELDAS C6 Interface Manual page 259

B con-
Signal name
tact
CUTTING FEEDRATE
*
OVERRIDE
[Function]
Override (multiplication) can be exerted to cutting feedrate (F feedrate) during automatic operation
with this signal.
[Operation]
When the signal is valid, true feedrate is the product obtained by multiplying referenced speed by
override ratio (%) specified by the signal.
Override is 100%, even when the signal is given, in the following cases:
(1) When "Override cancel" (OVC) signal is ON
(2) During tapping mode
(3) During thread cutting
These signals (*FV1~*FV16) are set with the code method. The relation is shown below.
*FV16 *FV8
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 0
1 0
1 0
1 0
1 0
1 0
1 0
1 0
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 1
0 0
0 0
0 0
0 0
0 0
0 0
0 0
[Related signals]
(1) Override cancel (OVC: Y758)
(2) 2nd cutting feedrate override valid (FV2E: Y766)
(3) Cutting feedrate override method select (FVS: Y767)
6. EXPLANATION OF INTERFACE SIGNALS
6.3 PLC Output Signals (Bit Type: Y***)
Signal
abbreviation
*FV1~*FV16
*FV4 *FV2 *FV1
1 1 1
1 1 0
1 0 1
1 0 0
0 1 1
0 1 0
0 0 1
0 0 0
1 1 1
1 1 0
1 0 1
1 0 0
0 1 1
0 1 0
0 0 1
0 0 0
1 1 1
1 1 0
1 0 1
1 0 0
0 1 1
0 1 0
0 0 1
0 0 0
1 1 1
1 1 0
1 0 1
1 0 0
0 1 1
0 1 0
0 0 1
6-3-62
1st system
Y760~764
Cutting feedrate
override
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
110%
120%
130%
140%
150%
Generally, the rotary switch
160%
(5-step, 21-notch, compliment
170%
binary code output) is connected
180%
to the operation board, and used
190%
between 0 and 200%.
200%
210%
220%
230%
If *FV1 to *FV16 are all off, the
240%
previous value will be
250%
maintained. The value will
260%
change to 0% when the power
270%
is turned OFF.
280%
290%
300%
2nd system 3rd system
Y840~844 Y920~924