Mitsubishi Electric QD77MS User Manual page 649

Normal timing times
QD77MS2
QD77MS4
QD77MS16

Delays may occur in the t1 timing time due to the operation status of other axes.
Position control by manual pulse generator operation
In manual pulse generator operation, the position is moved by a "manual pulse
generator 1 pulse movement amount" per pulse.The current feed value in the
positioning control by manual pulse generator operation can be calculated using
the expression shown below.
Current feed value = Number of input pulses
[Pr.1] Unit setting
Manual pulse generator
1 pulse movement
amount
For example, when "[Pr.1] Unit setting" is mm and "[Cd.20] Manual pulse
generator 1 pulse input magnification" is 2, and 100 pulses are input from the
manual pulse generator, the current feed value is as follows.
100 × 2 × 0.1 = 20 [µm] ("[Md.20] Current feed value"=200)
The number of pulses output actually to the servo amplifier is "Manual pulse
generator 1pulse movement amount/movement amount per pulse".
The movement amount per pulse can be calculated using the expression shown
below.
Movement amount per pulse =
For example, when "[Pr.1] Unit setting" is mm and the movement amount per pulse
is 1μm, 0.1/1 = 1/10, i.e., the output to the servo amplifier per pulse from the manual
pulse generator is 1/10pulse. Thus, the Simple Motion module outputs 1pulse to the
servo amplifier after receiving 10pulses from the manual pulse generator.
Speed control by manual pulse generation operation
The speed during positioning control by manual pulse generator operation is a
speed corresponding to the number of input pulses per unit time, and can be
obtained using the following equation.
Output command frequency = Input frequency  [Cd.20] Manual pulse generator 1 pulse
Operation cycle
0.88 0.6 to 0.9
1.77 0.6 to 1.8
0.88 0.6 to 0.9
1.77 0.6 to 1.8
0.88 0.6 to 0.9
1.77 0.8 to 1.8
× [Cd.20] Manual pulse generator 1 pulse input magnification
× Manual pulse generator 1 pulse movement amount
mm inch
0.1µm 0.00001inch
[Pr.3] Movement amount per rotation(AL)
[Pr.2] Number of pulses per rotation(AP)
11 - 27
Chapter 11 Manual Control
t1 t2
10.0 to 15.0 18.0 to 25.0
10.0 to 15.0 18.0 to 25.0
10.0 to 15.0 18.0 to 25.0
10.0 to 15.0 18.0 to 25.0
10.0 to 15.0 18.0 to 25.0
10.0 to 15.0 18.0 to 25.0
degree
0.00001degree
input magnification
Unit : [ms]
t3 t4
9.6
9.6
9.6
9.6
9.6
9.6
PLS
1PLS

[Pr.4] Unit magnification(AM)