MHT260a (Engl.)9-4
(ii) Sub-mode display
(*1) Displays the current present status
Indication Description Check and remedy
In base-off condition, the motor has no driving force
and in free-run status.
Turn on the run command [RUN].
Turn off the free-run command [BX].
The motor can rotate and is waiting the run
command.
Manual forward [FWD] may not be valid.
The motor can rotate and is executing manual feed. The motor is already rotating.
Increase the analog input voltage or multistep speed setting.
The motor can rotate and the pulse train input is valid. The pulse train may not be input or the pulse train signal form
may be different.
The motor can rotate and is executing positioning
operation.
Increase the speed data.
The motor can rotate and is executing origin return. Increase the origin creep speed.
The motor can rotate and is executing interrupt
positioning.
−
The amplifier is executing deviation clear. Invalidate the deviation clear signal.
The motor can rotate and is measuring the brake
timing.
−
The motor is stopping with positioning cancel signal. Invalidate the positioning cancel signal.
(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 most mechanical equipment systems except some examples. If it does not work, contact us.
ＥＮＴ（１ [s] or more）
ＥＳＣ
(*1)
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.
If mechanical equipment system
and motor are disconnected, still
hunting occurs ?
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