Mitsubishi Electric MELDAS C6 Interface Manual page 319

B con-
Signal name
tact
S ANALOG OVERRIDE
—
(File register method)
[Function]
When "S analog override" signal (SPS) is used, override can be exerted on S analog speed
reference in file register method instead of the rapid traverse override with the code method
(SP1~SP4). Override can be exerted within range of 0% to 200% (1% increment). Value is set in
binary code to file register (R).
[Operation]
When this function is used, the spindle actual speed is the product obtained by multiplying the
originally set spindle speed by override ratio set with this signal.
Clamp spindle speed is the maximum or minimum speed which depends on "Spindle gear select
input" signal (GI1, GI2) ... clamp spindle speed is set by a parameter. Even when spindle speed
exceeds the maximum or minimum speed, due to change of override setting, "Spindle gear select
input" signal (GR1, GR2) does not automatically change.
0 Smini
G10
Applicable override range at gear stage 3
(Note) Override is not valid (100%) under the following condition:
(1) "Spindle stop" signal (SSTP) is ON.
(2) During tapping mode
(3) During thread cutting
[Related signals]
(1) S analog override is invalid (100%)
(2) Spindle override method select (SPS: YD2F)
(3) Spindle gear select input (GI1, GI2: YD30, D31)
(4) Spindle stop (SSTP: YD34), Spindle gear shift (SSFT: YD35), Oriented spindle speed
command (SORC: YD36)
6. EXPLANATION OF INTERFACE SIGNALS
6.4 PLC Output Signals (Data Type: R***)
Signal
abbreviation
Smax1 Smax2 Smax3
G20
G30
1st spindle
R3220
GR10 : Applicable override range at gear stage
GR20 : Applicable override range at gear stage
GR30 : Applicable override range at gear stage
Smini : Minimum spindle speed (parameter)
Smax1 : Maximum spindle speed at gear stage 1
(parameter)
Smax2 : Maximum spindle speed at gear stage 2
(parameter)
Smax3 : Maximum spindle speed at gear stage 3
(parameter)
6-4-29
2nd spindle 3rd spindle
R3250 R3280