Specifications

APPENDIX 4 PRECAUTIONS FOR COMPLYING WITH UL/c-UL STANDARDS
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APPENDIX 4 PRECAUTIONS FOR COMPLYING WITH UL/c-UL
STANDARDS
Observe the following matters to comply with the UL/c-UL Standards.
(1) Selecting the external 24VDC power supply unit
The remote I/O unit (FCU6-DX561) complies with UL Standards on the condition that the external
power supply unit for supplying 24VDC is a UL-approved part. Use a UL-approved part for the
power supply unit supplying 24VDC to this unit.
(2) Unit ambient temperature
The remote I/O unit (FCU6-DX561) complies with UL Standards on the condition that it is used
within the maximum ambient temperature given in "3.1 General Specifications" in Chapter 3 of this
manual.
Design so that the maximum ambient temperature of this unit does not exceed the temperature
given in "3.1 General Specifications" in Chapter 3 of this manual.