Hyundai HX300L - Manual (Page 120)

HX200/HX200L-2000/HX300/HX300L/HX400
6-14
Warning
Before encoder correction, check motor connections, with motors [ON], while
pressing the Enable switch for 2~3 seconds.
(13) Perform the encoder calibration about the axis whose motor is replaced.
Refer to the chapter [Encoder Calibration] in the controller operating
manual..
(14) Remove M20 bolt, a supporting bolt for preventing possible dropping of axis
H or V.
(15) Confirm that there is no error in robot's motion.