M800S/M80/E80 Series Connection and Setup Manual
39 Appx.6: Precautions for Compliance to UL/c-UL Standards
598
IB-1501269-J
(1) Selection of external 24VDC power supply unit (The unit shall be prepared by the machine tool builder.)
This NC system complies with the UL Standards on the condition that the stabilized power supply unit supplying
24VDC to each unit is a UL-approved part of SELV/limited power LPS or Class 2.
Use a UL-approved part for the stabilized power supply unit supplying 24VDC to each unit.
(2) Unit ambient temperature
This NC system complies with the UL Standards on the condition that the unit is used at a temperature less than the
maximum ambient temperature given in "Environment Conditions" section. Make sure that the maximum ambient
temperature of each unit does not exceed the temperature given in "Environment Conditions" section.
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