Mitsubishi FX2N-10GM, Hardware / Programming Manual

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FX Series Positioning Controllers Program Examples 9
9-4
Conversion from the movement quantity into the pulse quantity
1) Movement quantity
Pulse quantity
=
×
Pulse quantity required for one rotation of motor (pulse rate)
In the system configuration shown in Paragraph 9.1, the mechanical quantity "200 mm" can
be converted into the pulse quantity as follows.
Pulse quantity [pls] =
×
4000 [pls/rev]
= 160000 [pls]
2)Speed
Pulse quantity =
×
Pulse quantity required for one rotation of motor (pulse rate)
In the system configuration shown in Paragraph 9.1, the mechanical quantity "30 cm/min" can
be converted into the pulse quantity as follows.
Pulse quantity [Hz] =
×
4000 [pls/rev]
=
×
4000
= 4000 [Hz]
Caution
• When adopting the mechanical system of units, make sure that the set value of the parame-
ter No. 4 (maximum speed converted into pulse quantity) does not exceed "200 kHz". If it
exceeds "200 kHz", the operation speed corresponding to "200 kHz" is automatically set.
• If the operation speed is set to "100 kHz" or more in the FX
2N
-20GM, the operation speed
during interpolation operation is automatically set to the value corresponding to 100 kHz.
Mechanical quantity
Movement quantity per rotation of motor (feed rate)
200[mm]
5000[
µ
m/rev]
Mechanical quantity
×
10
4
×
1/60
Movement quantity per rotation of motor (feed rate)
30[cm/min]
×
10
4
×
1/60
5000[
µ
m/rev]
300
×
1/60
5