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CAUTION
The stop settling time (ts) indicates the time for the motor to enter within the positioning accuracy range. It does
not indicate the time required for the motor to stop completely. When high positioning accuracy is required for the
Δ
travel per pulse (
) in high duty applications, for example, a longer setting time than the value derived from the
above formula must be considered. Note that ts also differs with the conditions of the moving sections.
Particularly at a large load friction torque, the motor may run unstably when it is coming to a stop.
(3) Position command acceleration/deceleration time constant (Pr. 424)
When the electronic gear ratio is large (about 10 or more times) and the speed is low, rotation will not
be smooth, resulting in pulse-wise rotation. At such a time, set this parameter to smooth the rotation.
When acceleration/deceleration time cannot be provided for the command pulses, a sudden change in
command pulse frequency may cause an overshoot or error excess alarm. At such a time, set this
parameter to provide acceleration/deceleration time.
Normally it is set to 0.
POSITION CONTROL FUNCTION
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