Notes on regulations and standards – KEYENCE DL-CL1 User Manual

Page 4

- CC-Link Compatible Network Unit DL-CL1 User’s Manual (FD-S) -

Equipment Environment

For safe, trouble-free operation of this product, the product must not be installed on
the following locations:

• Humid, dusty, or ill-ventilated.
• Exposed to direct sunlight or heating source.
• Exposed to corrosive or flammable gases.
• Exposed directly to vibration or shock.
• Exposed to water, oil, or chemical splashes.
• Exposed to static electricity.

Noise Protection

If this product is installed on a location near a noise source, e.g., power source or
high-voltage line, it may malfunction or fail because of noise. Use protection mea-
sures, such as using a noise filter or running the cords separately.

About Power Supply

• Noise superimposed on the power supply could cause malfunction. Use a stabi-

lized DC power supply configured with an isolation transformer.

• When using a commercially available switching regulator, be sure to ground the

frame ground terminal or ground terminal.

UL Certificate

This product is an UL/C-UL Listed product.
• UL File No. E207185
• Category NRAQ, NRAQ7

Be sure to consider the following specifications when using this product as an UL/C-
UL Listed Product.
• Use a power supply with Class 2 output defined in NFPA70 (NEC: National Electri-

cal Code).

• For wiring to the CC-Link connector, use the AWG 12-24 copper wire with temper-

ature rating 60

C or more.

• Use this product under pollution degree 2
• This product is an open type device. Therefore, it must be installed in an enclosure

with IP 54 or higher. (e.g. Industrial control panel)

Notes on Regulations and Standards