15-13
IM 253710-01E
Motor Evaluation Function (Applicable to Motor Modules)
15
Explanation
Setting the scaling factor
You can specify the scaling factor used to transform the revolution sensor signal.
Select the scaling factor in the range from 0.0001 to 99999.9999.
• When the revolution sensor signal type is [Analog]
By setting the number of rotations per volt of input voltage, the rotating speed is
derived from the following equation.
Speed (rotating speed)
= Scaling factor
×
Input voltage from the revolution sensor
• When the revolution sensor signal type is [Pulse]
The value is used as a scaling factor in the equation given in the next item “Setting
the pulse count.”
Setting the pulse count
Set the pulse count per rotation. Select the value in the range from 1 to 9999. This
takes effect when the revolution sensor signal type is set to [Pulse] in section 15.2.
Speed (rotating speed)
Number of input pulses from the revolution sensor
*1
Pulse count (pulse count per revolution)
×
Scaling factor
*2
=
*1 When the number of input pulses from the revolution sensor is measured in one minute
intervals, the unit of rotating speed is rpms.
*2 When the revolution sensor signal is a changed signal, you can set the scaling factor
(see previous item) to determine the rotating speed before the change.
Setting the unit of rotating speed
• Number of characters
Eight characters or less.
• Types of characters
Characters that are displayed on the keyboard or a space.
15.4 Setting the Scaling Factor, the Pulse Count, and Unit Used to Measure the rotating speed