392
FX
3U
/FX
3UC
Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
14 Handy Instruction – FNC 60 to FNC 69
14.9 FNC 68 – ROTC / Rotary Table Control
Explanation of function and operation
1. 16-bit operation (ROTC)
The table rotation is controlled by "m2",
and
so that a product can be efficiently put into or taken
out of the rotary table divided into "m1" (=10) sections as shown in the figure below.
1) Register (word device) specifying the calling condition
2) Register (bit device) specifying the calling condition
Works as a register for counting.
Set them in advance using a transfer instruction.
+ 1
Sets the port No. to be called.
+ 2
Sets the product No. to be called.
:
A phase signal
Construct in advance an internal contact circuit which is
driven by the input signal (X)
+ 1
B phase signal
+ 2
Zero point detection signal
+ 3
Forward rotation at high speed
+ 4
Forward rotation at low speed
+ 5
Stop
+ 6
Backward rotation at low speed
+ 7
Backward rotation at high speed
D
1
S
D
1
D
Port No. 1
Port No. 0
Rotary table
X000(M0)
X001(M1)
Detection
switch
0
9
8
7
6
5
4
3
2
1
Command
FNC 68
ROTC
D200
K10
K2
M0
Calling
condition
register
(word device)
Number
of
divisions
Number
of low-
speed
sections
Calling
condition
register
(bit device)
S
D
m1
m2
Product
Zero point
detection
Forward rotation
D
1
S
S
S
S
D
1
D
D
D
D
D
D
D
D
D