840dsl, gear change betwen execution of program

Hello,

We have turning maschine 840dsl with 3 axis x z and sp. The spindle is DC motor with ADI4 nad they have 4 gears

i have a problem with gear change betwen execution of program. When i wont to facing a piece from 300 fi to fi 0. I put the cconstant speed in m/min. So that mean when i start facing on fi 300 fi is speed in rpm about 100, when i finishing in fi 0 is speed about 1500rpm. I want that machine before operation change to 4 gear, because now is start with gear 1 and they stop operation when they rache 450rpm(max speed in gear 1). 

Can somebody give me advice how to resolve this problem. 

p.s. sorry for my english. 

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Split from Configuring the gear spindle speeds for 840Dsl.

Is gear shifting auto or manual?

Could you attach your part program here?

Which code is programmed for CCS?

Are you limiting spindle speed in part program?

the change automaticly from plc. For what is MD35010. MA_GEAR_STEP_CHANGE_ENABLE - 1H

In jog mode i choose STOCK rem. and with this program i want to facing a piece

I think that there can be a problem,  that  maschine must before operation check the maximum speed and they must change gear before operation?

That is why, I ask you to please write here your program lines.

Have you tried M41 to M45 codes. e.g. if your machine has 3 gear ranges & max RPM is at 3rd gear stage, in MDI mode try following commands & check.

M 43 S1500

Ok 

i didnt yet set up G code view. On this machine we using Shopturn. 

the code is:

Stock removal (T=11 F0.1/rev V=150m Face X0=300 Z0=0 X1=0 Z1=-0.1 FS1=0 FS2=0 FS3=0)

the spindle have 4 gears, 

if i try in mda m44 s1500 m3 

the gear is change in 4 and the spindle speed is rached 1500rpm. 

Ok. Now in MDI just try following & check.

S1500 M3 

if now i try only m3 s1500 is working.

so that mean that i must before operations call m40 to m44?

Hello,

It means the parameters are ok. 

If you are familiar with G code (ISO) programming just program in it, but with out M41 .. M45 command & check if the program runs correctly i.e. spindle speed proportionally increases as the fi goes on decreasing. If it works correctly, then you need to study how to program in shopturn.

HTH.