MOVE_ABS TO 0*: Motor rotate one Revolution plus some extra Degree / Actual Position showing zero

hello all,

In my project i used plc S7-1200 1214C DC/DC/DC plc AND servo v90pn, Simotics S-1FL6  ABS.MT.20:BIT MOTOR And Drive, I used these in Absolute Rotary Table application, Gear box 50:1 used, so load movement per motor revolution is 7.2 degree, i used modulo(modulo length 360 and start modulo 0.0) for zero degree after completing one revolution of rotary table, and used home mode_7 for one time offset homming, now  PROBLEM IS WHEN I ROTATE ONE REVOLUTION OF ROTARY TABLE(50 REVOLUTION MOTOR) USING MOVE_ABS TO 0* COMMAND, MOTOR ROTATE ONE REVOLUTION PLUS SOME EXTRA DEGREE but ACTUAL POSITION SHOWING ZERO. showing wrong degree ,actual table degree is 1 and showing 0,  ANY IDEA FOR THIS.?? 

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Split from It is changing V90 PN Absolute encoder value.