Need Help!- Nigata HN63D with Fanuc 18i

[M.RISHIKESH]

Dear All

Error 387 : X axis Encoder fault (External) fault is coming, mostly due to some fault in Linear Scale

We have referred to Nigata Manual to bypass Scale

Please refer to attachment Nigata.doc

Till now Machine was running in Scale mode so we do not know how parameters like 2000 bit 0 , 2023, 2043, 2044, 2047, 2053, 2054, 2056, 2074, 2128, 2129 match with the one for Encoder Mode although Machine was running in Scale mode and we never changed these paramters before. We have compared these parameters with another exactly similar Nigata Machine, in those machines also paramters are similar to this machine.

Also Paramters like 2024, 2057 and 2085 neither match with the list for encoder mode nor with the Scale Mode

To bypass Scale, we made 1815.1 as 0 and 2018.0 as 0, 2084 to 2, 2085 to 125, after switch off and ON, No error appears but when we move X axis, it moves but when we stop moving error 410 : X axis excess error appears, also in MPG (Handle ) Mode, we found that axis continues to rotate little further even after we stop moving axis using handwheel

Kindly let us know which all parameters to be changed to avoid error 410

Best Regards,

M. Rishikesh