Hi sabri
Check this :
- Mechanical stiffness of backgauge drive, check table spindle.
- Check / adjust backgauge drive motor with brake, brake is moving on small
measurements.
- Check and/or replace the backgauge drive motor with brake. (If the brake
is shaking when dealing with short cutting position, replace the brake)
- Frequency converter is defective (on machines with TML, if you have seeting compare with
- Check / replace pulse generator
- Check cable routes / connections
- Check / replace SAP- board
- Check / replace Cp board
- Check proper connection of main terminals from backgauge motor
- Parting of cable to the limit switches in the clamp (S6, S218, S218b)
- Check fuse F8
- Check correct adjustment of S13 and switching cam
- Check correct grounding of backgauge motor
- Check tight fit of spindle extension
- Adjust 0V by means of potentiometer on board SAP.
- Verify smooth operation of slot cover band rolls.
- Check plug no. 26 for Freq. Converter / SAP.
- Verify cable routes and connections (connectors 23/ 24 may be reversed).
- On machines with servo: check if toothed belt is too slack or to tense: Adjust
offset on SAP- board and/ or servo device.
- Check position B 341.
- After converting to Vector, there may be a contact malfunction on the I/O
module.
I think that hou have a frequency converter issue ( check setting or replace with new one )