Polar 115X (Error 654)

Dear all master, I am facing this issue. The machine with this error 654 : NO POSITION COUNTER IMPULSES. The machine will back in operation after cooling down. If with using blower to blow straight away to the boards, it will last longer or even no issue for the whole day. Can I know what is the root cause?

 

It seems like the inverter is faulty. Can you see if the "RED" LED on the inverter is light up once the error message appears?

 

Hi sir
During an active backgauge run: if no or too few counting pulses are received from
the signal transducer the above error message will be output.
This is done whenever the actual speed of the backgauge falls below the nominal
speed by 1/8.

 

Hi,
You didn't answer my question!!!
Try to clean back gauge motor brake and check if the back gauge moves smoothly.

 

This sounds too technical for me.

 

Hi Sir, sorry for late respond, was not in office for past few days. I will try on next Monday when return to my office. Thank you.

 

Hy micsabri any update on your error.??

 

Make sure you are using proper grease. Many people use thick grease used for industrial slow moving items and that cant be used on the high speed backgauge. You will need to use a thin lithium based grease. I recommend white lithium for backgauge leadscrew and slide gibs.

 

Still same problem, keep finding root cause.

 

Noted. Thanks

 

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 )