the link you attached cannot be opened . please tell me your solution , I am having the same issue . I just want to drive a servo motor with encoder pulses .
at slow speed everything works fine but when speed gets higher . it doesn't work as my requirement.
the things I am using are these:
PLC :MITSUBISHI FX3U 16 MT
SERVO :MITSUBISHI HC-KFS73B
SERVO AMP :MITSUBISHI MR-J2S-70A
ENCODER :OMRON E6B2-CWZ6C (200PPR)