GSK980MDc Milling CNC System User Manual
402
Appendix
When T type changes a shift, you can set the dual analog spindle as well.
No matter M type mode or T type mode all decided by bit parameter GTT.
GTT: select spindle gear shift mode
0: T type
1: M type
10.1.1 Dual Analog Spindle Control
When choose the T type gear shift function, two analog spindles can be controlled. One S code can be
used to instruct any one of them. Which spindle to choose decided by PLC signal and both of them have
the gear shift function.
S code, as the speed instructions, is transferred to the set spindle opted by spindle select signal
(SWS1, SWS2) and each spindle spinning at the specified speed. If a spindle has not accepted the spindle
select signal, it will spin at the previous speed. It is allowed that each spindle spinning at different speed at
the same time and each has respective stop signal and enable signal.
Spindle Select Signal SWS1, SWS2 (G27.0, G27.1)
●Signal Type: PLC→NC
●Signal Function: In multi-spindle mode, it controls NC whether output S instructions to spindle or not.
SWS1 set to“1”, output speed instructions to the 1st spindle; SWS1 set to“1”, do not
output speed instructions to the 1st spindle
SWS2 set to“1”, output speed instructions to the 2nd spindle; SWS1 set to“1”, do not output speed
instructions to the 2nd spindle.
●Signal Address:
G27 SWS2 SWS1
There are several types of spindle control, decided by parameter MSI, that is:
z Dual analog spindle control(A type)
No.1 spindle chosen by SWS1 signal, SIND signal is used to decide the spindle analog voltage
controlled by PLC or CNC. Signals R01I to R12I, which have no effect on 2nd spindle, play a role to set the
spindle analog voltage.
Frame multi-spindle control type A:
z Dual analog spindle control(B type)
Each spindle has a respective SIND signal.
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