IAI America ACON-CY - Manual (Page 55)

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5. Operation Using I/O Signals
5.2 Solenoid Valve Mode 0
This type assumes applications where the servo is turned on/off frequently by the PLC or the automatic servo-off function
is used. Use this type if your application meets the following conditions:
[1] The servo is turned off as a secondary safety measure when the emergency stop circuit is configured to directly
cut off the input power.
(Note) When the servo-on signal is turned OFF, the actuator will decelerate to a stop at the emergency stop
torque for a specified time, after which the servo will turn off.
[2] The servo is turned off to reduce power consumption in case the standby time is long.
[3] The actuator is equipped with a brake, and when reactive force is applied upon stopping due to clamping of the
load, etc., the servo is turned off to apply brake force to supplement the built-in brake.
* Do not use push-motion operations.
Caution: The controller is shipped with the proximity switch type pre-selected, so you need not change any
parameter if the proximity switch type is to be used.
5.2.1 Explanation of I/O Signals
Pin No. Wire color Signal name Signal abbreviation Function overview
1 Brown 1 +24 V P24V
2 Red 1 0 V 0 V
I/O power supply
3 Orange 1
Rear end move
command input
ST0 Move command to the rear end
4 Yellow 1
Front end move
command input
ST1 Move command to the front end
5 Green 1
Intermediate point move
command input
ST2 Move command to the intermediate point
6 Blue 1 Servo-on command input SON
The servo remains on while this signal is ON.
The servo remains off while this signal is OFF.
7 Purple 1
Rear end detection
output
LS0
This signal remains ON while the rear end is
recognized.
8 Gray 1
Front end detection
output
LS1
This signal remains ON while the front end is
recognized.
9 White 1
Intermediate point
detection output
LS2
This signal remains ON while the intermediate point
is recognized.
10 Black 1 Ready output SV This signal is output when the servo is on.
11 Brown 2 Homing complete output HEND
This signal is OFF immediately after the power is
turned on, and turns ON once homing is
completed.
12 Red 2 Alarm output *ALM
This signal remains ON while the actuator is
normal, and turns OFF if an alarm has occurred.
„ Move Command Input for Each Position (ST0, ST1, ST2)
Since the number of positioning points is limited to three, you can use these inputs just like when controlling an air
cylinder.
While each signal remains ON, the actuator moves to the target position.
If the signal turns OFF before the movement is completed, the actuator will decelerate to a stop.
Before executing each move command, enter a target position as an absolute coordinate in the “Position” field
under one of Nos. 0 to 2 in the position table.
Input signal Target position Remarks
ST0 Rear end The target position is defined in the “Position” field under Position No. 0.
ST1 Front end The target position is defined in the “Position” field under Position No. 1.
ST2 Intermediate point The target position is defined in the “Position” field under Position No. 2.
„ Servo-on Command Input (SON)
The servo remains on while this signal is ON.
To ensure safety, it is recommended that the PLC be configured to monitor the condition of the entire system and
turn ON this signal once all conditions required for movement are satisfied.