IAI America ERC3 - Manual (Page 134)

Chapter 3 Wiring
3.4 MEC Mode 1 (Operation with PLC)
124
3.4.2 PIO Pattern Selection and PIO Signal
[1] Operation pattern
There are 2 types of operation patterns available. The selection of the operation patterns is to
be set in the initial setting process using a teaching tool such as the PC software. See the
instruction manual of each teaching tool for more details.
This setting cannot be made for Quick Teach.
Explained below is the outline of the operational specifications for each pattern.
Operation pattern Description
How to connect motorized
cylinder
Air cylinder circuit
(Reference)
Stopping at
2 points
(2-point
positioning)
Movement
by
1
input
between
2
po
in
ts
[S
in
gl
e-
so
le
no
id
m
od
e]
You can move the actuator
between 2 points using the same
control you would normally use
with an air cylinder.
You can set the positions of the
end point and start point.
You can specify the moving
speed and
acceleration/deceleration. You
can also specify push-motion
Operation. The actuator moves
to the end point when the ST0
turns ON, and returns to the start
point when the signal turns OFF.
Detection of start position
LS0
Detection of end position
LS1
Move signal 1
ST0
ERC3
PLC
Power Supply
Move signal 1
ST0
Air cylinder
Sensor
Spring
P (Air)
Detection of start position
LS0
Detection of end position
LS1
PLC
R1 R2
B Solenoid A
Air cylinder
Solenoid A
Solenoid B
Sensor
P (Air)
Move signal 1
ST0
Move signal 2
ST1
A B
R1 R2
PLC
Detection of end position
LS1
Detection of start position
LS0
Movement
by
2
input
between
2
poi
nt
s
[D
ou
bl
e-
so
le
no
id
m
od
e]
Detection of start position
LS0
Detection of end position
LS1
PLC
Move signal 2
ST1
Move signal 1
ST0
ERC3
Power Supply
Detection of start position
LS0
Detection of end position
LS1
Air cylinder
Solenoid A Solenoid B
Sensor
P (Air)
Move signal 1
ST0
Move signal 2
ST1
A B
R R
PLC
Stopping at
3 points
(3-point
positioning)
Movement
by
2
input
between
3
poi
nt
s
[3-poi
nt
positi
oning]
You can move the actuator
between 2 points using the same
control you would normally use
with an air cylinder.
You can set the positions of the
end point and start point.
You can set the position of an
intermediate point and perform
positioning to the intermediate
point.
You can specify the moving
speed and
acceleration/deceleration. You
can also specify push-motion
Operation. The actuator moves
to the end point when the ST1
turns ON, and moves to the start
point when the ST0 turns ON.
[Intermediate movement mode,
both ON]
When both the ST0 and ST1 are
turned ON, the actuator will
position to and stop at an
intermediate point.
When both the ST0 and ST1 are
turned OFF, the actuator will
stop in the middle of movement.
[Intermediate movement mode,
both OFF]
When both the ST0 and ST1 are
turned OFF, the actuator will
position to and stop at an
intermediate point.
When both the ST0 and ST1 are
turned ON, the actuator will stop
in the middle of movement.
Detection of start position
LS0
Detection of end position
LS1
Detection of
intermediate point
LS2
Move signal 1
ST0
Move signal 2
ST1
PLC
ERC3
Power Supply
Air cylinder
Sensor
P (Air)
PLC
Detection of end position
LS1
Detection of start position
LS0
P (Air)
P (Air)
Detection of
intermediate point
LS2
Move signal 1
ST0
Move signal 2
ST1