Mitsubishi Electric MELDAS C6 Interface Manual page 318

B con-
Signal name
tact
SPINDLE COMMAND
—
ROTATION SPEED OUTPUT
[Function]
By setting data of desired spindle speed to this signal, the spindle can be run at that speed.
[Operation]
When this signal is used, operation is same as the case where usual "Spindle command rotation
speed input" signal (R8, 9) is given. Difference is that when data is set by user PLC, priority is given
to that data over spindle (S) command data specified in automatic operation, or by manual
command setting.
User PLC main (medium-speed) operation pattern
•
•
(Note 1) "Spindle command rotation speed output" data is rewritten by user PLC for each scan
(constant).
(Note 2) "Spindle override", "Spindle gear select input (GI1, GI2)", "Spindle stop (SSTP)", "Spindle
gear shift (SSFT)" and "Oriented spindle speed command (SORC)" conditions are added
to spindle command rotation speed output data and sent to the spindle controller.
(Note 3) For flow of spindle (S) function command data, data update timing, etc., refer to the
section for "Spindle command rotation speed input (R3000, 1)".
[Related signals]
(1) Spindle command rotation speed input
(2) Spindle command final data
6. EXPLANATION OF INTERFACE SIGNALS
6.4 PLC Output Signals (Data Type: R***)
Signal
abbreviation
• • (1) "Spindle command rotation speed input" is set at
(2) "Spindle command rotation speed output" data is
(3) "Spindle command rotation speed output" data is
(R3000, 3001)
(R3002, 3003)
(R3004, 3005) (D/A output method)
6-4-28
1st spindle 2nd spindle
R3210 R3240
the head of user PLC main program (controller
process).
rewritten by user PLC within this interval if
necessary (PLC process).
processed at the end of user PLC and signal is
given to spindle controller (controller process).
3rd spindle
R3270