Omron TJ2-MC64 - PROGRAMMING Programming Manual page 272

Examples and tips
Note that we have not used the pulley radius in the calculation. This is to
avoid the use of π, which cannot be expressed as a fractional number). In
toothed pulleys, the number of teeth and mm per tooth is commonly used.
The calculation of the multiturn limit setting is:
. .
m motor_revolution = n machine_cycle
. .
m motor_revolution = n machine_cycle
.
6 31 motor_revolution
.
= n 13 = n 82.03 pulley_revolution
1 pulley_revolution
.
m = n 82.03
The smallest integer m for which this equation is valid is 8203. This results in
Pn205 = 8202.
In addition, to limit the motion units range to the moving range of the motion
part, the following axis parameters must be set: REP_DIST = 4260, and
REP_OPTION = 1. With these settings, executing MOVE(38) moves the
moving part 38 mm in forward direction. The range of possible MPOS and
DPOS values is 0 mm to 4160 mm.
PROGRAMMING MANUAL
9
UNITS = 2 = 512
Pn202 = 631
Pn203 = 125
.
4160 pulley_revolution
. .
= n 13 pulley_revolution
.
320 machine_cycle
. .
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