‑5‑
● Prevent metal filings and wire ends from dropping into ventilation holes of the PLC
during installation. Failure to comply may result in fire, fault and malfunction.
● Ensure there are no foreign matters on ventilation surface. Failure to comply may result
in poor ventilation, which may cause fire, fault and malfunction.
● Ensure the module is connected to the respective connector securely and hook the
module firmly. Improper installation may result in malfunction, fault or fall‑off.
Wiring
● Wiring must be carried out by personnel who have received the necessary electrical
training and understood enough electrical knowledge.
● Disconnect all external power supplies of the system before wiring. Failure to comply
may result in electric shock, module fault or malfunction.
● Install the terminal cover attached to the product before power‑on or operation after
wiring is completed. Failure to comply may result in electric shock.
● Perform good insulation on terminals so that insulation distance between cables will not
reduce after cables are connected to terminals. Failure to comply may result in electric
shock or damage to the equipment.
● To avoid electric shock, cut off the power supply before connecting the product to the
power supply.
● The input power of the product is 24 VDC. If the power input is not within 24 VDC±20%,
the product may be damaged. Therefore, check regularly that the DC power provided by
the switching‑mode power supply unit is stable.
During Operation and Maintenance
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