CAUTION
24-V Power Supply to Be Certified For UL Standards
Please see below for the 24-V power supply condition for UL certification.
• For UL certification, class2 power supply is required based on NEC NFPA 79 (Electrical Standard for Industrial Machinery).
• If a single class2 power supply unit is insufficient to provide enough power, use multiple class2 power supply units.
At that time, follow the (example) below for the wiring layout. Also, 0-V line to each power supply is required to be common.
Simple
absolute
R unit
Simple
absolute
R unit
Simple
absolute
R unit
R unit
unit unit unit unit unit
Power
Supply
Power
Supply
Power
Supply
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