Mitsubishi Electric QD77MS User Manual page 705

(4) When "mm" is set as the control unit for conveyor drive
(calculation including
When the belt conveyor drive is used, the conveyor diameter is 135mm,
the pulley ratio is 1/3, the motor is HG-KR (4194304PLS/rev) and the
reduction ratio of the reduction gear is 7/53.
M
Reduction ratio 7/53
As the travel value of the conveyor is used to exercise control, set "mm"
as the control unit.
First, find how many millimeters the load (machine) will travel (
the motor turns one revolution (AP).
 AP (Number of pulses per rotation) = 4194304 [PLS]
S

Substitute this for the above expression (1).
At this time, make calculation with the reduction ratio 7/53
remaining as a fraction.
AP
S
Here, make calculation on the assumption that
3.141592654.
AP
S
AL has a significant number to first decimal place, round down numbers to
two decimal places.
AP
S
Thus, AP, AL and AM to be set are as follows.
AP = 166723584 ....[Pr.2]
AL = 742201.2 .......[Pr.3]
AM = 1 ..................[Pr.4]
Pulley ratio 1/3
(Movement amount per rotation)
AP
=
AL  AM
AP
=
AL  AM
AP
=
AL  AM
13 - 17
Chapter 13 Control Sub Functions
)
Belt
conveyor

= 135000.0 [ m]

= 135000.0 [ m]
4194304 [PLS]
=
135000.0 [  m] 
4194304  53  3
=
135000.0   7
166723584
=
236250 
166723584
=
742201.2645075
166723584
= =
742201.2
135mm
S ) when
Reduction ratio
 
7/53 1/3
  
1/3

 7/53  1/3
is equal to
166723584 (AP)
742201.2 (AL)  1(AM)