Current Manual Pulse Input Value; Input Frequency Of Manual Pulse Generator - Mitsubishi FX3U-20SSC-H User Manual

FX -20SSC-H Positioning Block User's Manual
3U
• The operation speed is proportional to the frequency of pulse strings from the manual pulse generator
according to the manual pulse input magnification.
In addition, the override setting is invalid.
Manual pulse generator
Frequency within 100kHz
A-phase
B-phase
- The following equation provides output pulses to 20SSC-H.
Input pulses (frequency, pulse quantity)
from manual pulse generator
- If the pulse generator magnification is smaller than 1/1, one pulse is output for every multiple input
pulse.
Therefore, the frequency of output pulses is low while the pulse quantity is small.
If the pulse generator input electronic gear ratio is larger than 1/1, multiple pulses are output for each
input pulse.
Therefore, the frequency of output pulses is high while the pulse quantity is large.
If the pulse generator input electronic gear ratio is larger than 1/1, the motor rpm for each input pulse
becomes larger, causing rough positioning accuracy.
8.3.2

Current manual pulse input value

The current number of total input pulses from the manual pulse generator is stored.
8.3.3

Input frequency of manual pulse generator

The frequency of the manual pulse generator input is stored.
The sign of an increasing count is positive (+), while the sign of a decreasing count is negative (-).
2-phase pulses
Input pulses x
= output pulses
manual pulse input
X
magnification
20SSC-H
manual pulse input
magnification (numerator)
manual pulse input Command
magnification (denominator)
Manual pulse input
magnification (numerator)
Manual pulse input
magnification (denominator)
8 Manual Control
8.3 Manual pulse generator operation
Servo amplifier
Motor
drive unit
1
2
3
4
5
6
7
8
9
10
73