1-2
1-1 Functions
The 3F88-L160 and 3F88L-162 Cam Positioners are Units that detect angles through a
Resolver (a sensor that detects absolute angles) and turn output signals ON and OFF at
a preset angle through a cam program.
The 3F88L-160 Cam Positioner has 16 cam output points and the 3F88L-162 Cam Posi-
tioner has 32 cam output points.
1-1-1 Basic Operation
• Input a cam program (the ON/OFF pattern for cam outputs) into the Cam Positioner, use the bank
switching signal to select the bank number, and turn ON the operation signal to start operation.
User ma-
chine or
device
Resolver
Cam Positioner
Cam output
Control input
Bank switching signal (Bank numbers 1 to 3)
Operation signal (START)
Resolver angle
Cam output 1
Cam output 2
Cam output 3
(Programming example for 360 resolution)
Cam Program (Bank No. 1)
Cam No.
1
2
2
3
---
1
1
2
1
---
90
315
135
0
---
180
45
225
45
---
Step ON angle OFF angle
Cam Program (Bank No. 2)
Cam Program (Bank No. 3)
0° 90° 180° 270° 0°
---
---
1-1-2 Resolution
• The angle resolution can be set to 360 (divisions/revolution) or 720 (divisions/revolution).
• The following table shows how functions and performances are affected by resolution settings.
Function or Characteristic 360 resolution 720 resolution
Angle setting and display units 1° is set and displayed as “1.” 0.5° is set and displayed as “1.”
Permissible Resolver speed 1,600 r/min 800 r/min
No. of cam program steps 180 max. 360 max.
Number of banks 8 4
Note For example, to set the ON angle at 90°, the setting is “90” for a 360 resolution and “180” for a 720
resolution.
Outline Chapter 1
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