MHT258a (Engl.)9-5
(b) Motor hunting rotation (motor shaft rotates forward/reverse repeatedly)
The amplifier which incorporates a real-time turning function estimates the mechanical equipment system at all times. For the amplifier, the
real-time turning function is factory validated.
The real-time turning function is valid for mechanical equipment systems except some examples. If it does not work, contact us.
(c) Positioning accuracy is poor
Motor hunting
Contact us
Changing the phase sequence of motor does not change the direction
of rotation but causes hunting.
Check the connection of motor
power to U, V, W of amplifier.
Separate mechanical equipment
system and motor, still hunts.
Positioning accuracy is poor
Contact us
Check in sequence mode of touch panel. It can be displayed at Sn001.
[OT] is detected if display is as follows.
Stopped near [＋OT, −OT] point.
With [FWD] or [REV] positioning accuracy is not sufficient.Moved with positioning data with
RYS-L amplifier.
Moved with specified station
No. for RYS-R amplifier.
Current position display of touch
panel at target position
[P action] may have been turned on without applying the brake at end of
positioning. [RUN] or [EMG] may have been turned off at end of
positioning.
Mechanical connection coupling
etc. loose
Locate and remedy loosening
Positioning accuracy within
electrical resolution
Check the mechanical and electrical resolutions (accuracy).
Check the para. Setting.
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