Need Help!- Oerlikon Blade Grinder withFanuc 160iMA

[M.RISHIKESH]

Dear All,

Good Evening everybody

Subject machine uses Walter Make Rotary Table. A axis has got external Heidenhain RON 275, 18000 PPR encoder and Motor has got no absolute encoder.

a) Sometimes we used to getError 414 & to overcome 414 : A axis soft disconnect we checked belt and found little loose.

After tightening the belt , we stopped getting frequent alarm that means there was improvement.

Sometimes we never had problem in whole shift also but since last Friday, we started getting alarm around 5 to 6 times a day.

b) Checked backlash of Worm gear, & reduced it from 70 to 40 microns

c) Rotated A in MPG mode at 1000 microns in both directions 10 to 15 times, no error found

d) No error observed in Auto referencing

e) Auto Cycle started & as per the program X, A, and C moved together till distance to go became zero , all the axes stopped with no error but after few seconds, Error 436 : A axis soft thermal OVC detected appeared & OVC bit under diagnostic 200 for A also got ON, actually error 414 flashes on the screen and vansishes and then we get Error 436
Please advice me at maddala.rishikesh@tatamotors.com to overcome error 436 in above case

Kind Regards,

M. Rishikesh

[sinha_nsit]

On my 0i Mate TC, soft thermal error used to come because of a loose connector. The service guy simply took out the connector and re-connected it.