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Safety Precautions
1. Perform wiring in accordance with the descriptions of connection ports and ensure to properly ground the
system.
2. When applying power to the module, do not disassemble the module, change the wiring, or touch the
power supply to prevent electric shock.
Pay special attention to the following safety precautions at all times during installation, wiring, and operation
of the product.
The symbols of “DANGER”, “WARNING”, and “STOP” indicate:
Danger. May cause severe or fatal injuries to personnel if the instructions are not
followed.
Warning. May cause moderate injury to personnel, or lead to severe damage or even
malfunction of the product if the instructions are not followed.
Absolutely prohibited activities. May cause serious damage or even malfunction of the
product if the instructions are not followed.
It is recommended that you install this module in a suitable electrical control panel and
make sure the ambient temperature is lower than 60°C (140°F).
Do not place the product in an environment containing oil mist, salt mist, and dust.
Do not use the product in an environment containing flammable and explosive gases.
The electric arc generated when you switch the relay On or Off might ignite the gases.
The wires used for wiring should be UL-compliant with the following specification.
Wire gauge: 26 - 18 AWG; temperature rating: > 105°C (221°F); material: copper.
To prevent electric shock, make sure to cut off the power to the module and the common
input / output points before removing the module or the connected wires.
This product uses DC power only. Do not use AC power for the product.
This product is for industrial automation and other related applications. For your safety, the
instructions for installation and operation in this manual should be observed.
Wipe clean with dry cloth to keep the product from humidity.
Use the power adapters that comply with the power supply requirements of UL 61010-1,
UL 61010-2-201, or UL 62368-1 for this product.
The power for the module and the common input / output points should be two independent
power supplies and within the rated voltage. If you are uncertain of the voltage in your area,
contact local electrical technicians.
Do not attempt to disassemble or repair the module yourself if a malfunction occurs.
Contact Delta or the distributor for technical support.
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