IAI RA Series, Instruction Manual

Page: 48 / 186

4. Operation Program
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CAM table
CAM table is a collection of point data of which horizontal axis is set as phase of the master axis
and vertical axis is set as displacement of the slave axis (herein after referred to as
“displacement data.”)
Phase/displacement is not a physical quantity, but indicates the ratio relative to the maximum
value. The value of the stroke amount of the master/slave axes (width the master/slave axes can
move in 1 cycle of the CAM movement) multiplied by these ratios are movement amount
(movement amount from synchronization start position).
Relative position from master axis synchronization start position = master axis stroke × current
phase / maximum phase
Relative position from slave axis synchronization start position = slave axis stroke × current
displacement / (maximum displacement – minimum displacement)
[Example] Cam Table
No.
Phase Displacement
0 0 0
1 500 1000
2 1000 3000
3 1500 6000
4 2000 11000
5 2500 18000
6 3000 22000
7 3500 24500
8 4000 25000
9 4500 24500
10 5000 22000
11 5500 18000
12 6000 11000
13 6500 10000
14 7000 10000
15 7500 9000
16 8000 5000
17 8500 3000
18 9000 2000
19 9500 1000
20 10000 0
Up to 128 CAM tables and up to 65536 displacement data in total for all tables can be defined.
Displacement (Slave axis)
0
5000
10000
15000
20000
25000
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
Phase
(Master axis)
ME0364-2B