6
Introduction
ZW
User's Manual
Introduction
Precautions for Safe Use
Please observe the following precautions for safe use of the products.
(1) Installation Environment
• Do not use the product in environments where it can be exposed to inflammable/
explosive gas.
• To secure the safety of operation and maintenance, do not install the product close to
high-voltage devices and power devices.
(2) Power Supply and Wiring
• Take care when using a power supply with an overcurrent detector, because this
sensor uses DC-DC converter for its power supply circuit and inrush current may
activate the protective circuit for a power supply with an overcurrent detector.
Recommended power supply: S8VS-06024 (Omron, DC24 V 2.5 A 60 W)
• The supply voltage must be within the rated range (DC24 V ± 10 %).
• Reverse connection of the power supply is not allowed.
• Open-collector outputs should not be short-circuited.
• Use the power supply within the rated load.
• High-voltage lines and power lines must be wired separately from this product. Wiring
them together or placing them in the same duct may cause induction, resulting in
malfunction or damage.
• Use adequate safety measures, for example fail-safe circuits.
• Attach a specified-sized crimp-type terminal at the end of a wire. Do not connect a
wire with an only twisted end directly to a power supply or terminal block.
• For a power supply, use a DC power supply unit provided with a remedy, for example,
safety ultralow voltage circuit, to prevent a high voltage from being generated.
• Route so that power supply wires are as short as possible.
• Use D-type grounding (ground resistance of 100 or less). Make the ground point as
close as possible and make the ground wire used as short as possible.
• Never a ground wire with other equipment and never ground to building beams. Doing
so could cause negative impacts.
• Use a power supply dedicated for this product, without sharing it with other products.
• Tighten fixing screws securely at a torque specified in this manual.
• Before performing any of the following activities, be sure to turn off the product, or
breakdown may result.
- Connecting or wiring cables
- Connecting or disconnecting connectors
- Installing or removing Calibration ROM
(3) Others
• Do not use this product for nuclear facilities, or safety circuits involving human lives.
• Do not attempt to disassemble, repair, modify, apply pressure to deform or burn up the
body.
• Dispose of this product as industrial waste.
Precautions for Safe Use
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