-5-
No.D-
※
S-OMU0002-A
The description "Cylinder" or "actuator" indicates a cylinder, air gripper, rotary actuator, electrical actuator or
cylinder, etc.
Hereafter the "actuator position sensor" is described as the "position sensor".
Design and Selection
Warning
(1) Review the specifications.
If the product is used with an excessive load or used outside of the specifications, it may cause damage
or malfunction.
The product cannot be guaranteed if is used outside of the specification range.
(2) Caution for use in an interlock system
When the product is used in an interlock system which requires high reliability, provide a double interlock
system, for example a mechanical protection system, for extra safety, or by also using another switch
(sensor) together with the product.
Inspect the product periodically to confirm proper operation.
(3) Do not disassemble, modify (including changing the printed circuit board) or repair.
It may cause injury and/or an accident and will void the warranty.
Caution
(1) Take precautions when multiple actuators are used close together.
When using two or more cylinder or actuator with magnet built in close proximity to each other, maintain a
minimum separation distance of at least 40 mm. (If the separation distance is specified for the actuator
series, then use that value).
The product may malfunction due to magnetic field interference.
(2) Reserve a space for maintenance.
Design the system to allow the required space for maintenance.
(3) Never mount the cylinder/actuator in a location that will be used as a footrest.
If work personnel gets on or puts the work personnel’s foot on the footing accidentally, an excessive load
will be applied to the rotary table, causing the rotary actuator to break.
(4) Design the product to prevent reverse current when the circuit is open or the product is forced to
operate for operational checks.
Reverse current can cause product damage or malfunction.
(5) Limitations of the detection position
There will be mounting positions or surfaces where the product cannot be mounted due to physical
interference (e.g. rear side of the foot bracket), depending on the mounting conditions of the actuator.
Select the product after confirming that the product's mounting position does not interfere with the
mounting bracket (e.g. trunnion, reinforcement ring).
The position sensor might protrude out of the cylinder and it may not be possible to mount depending on
the cylinder bore size or stroke.
When the position is to be measured over the cylinder full stroke, use a cylinder with a stroke 5 mm
shorter than the sensor range.
Use a stroke reading cylinder when the full stroke cannot be detected by the position sensor.
(6) The wiring length should be kept to 20 m or less.
For long wire lengths, we recommend a ferrite core should be attached to both ends of the cable, to
reduce noise.
(7) Do not use a load which generates surge voltage.
When a load which generates a surge voltage is to be directly driven, operate such as a relay or solenoid,
use an auto switch with built-in surge protection.
(8) The output operation of the position sensor will be unstable for 150 ms after power is supplied.
During the time after supplying power, the input device (e.g. PLC, relay) may consider the ON position as
OFF output or the OFF position as ON output.
Please set up the application to consider the signals will be invalid within 150 ms after power is supplied.