17 Extension Power Supply Unit
17.3 Extension Power Supply Unit Related Precaution
250
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
17.3 Extension Power Supply Unit Related Precaution
1. The power is supplied as follows when the input extension block (including the FX2N-8ER-
ES/UL and FX
2N-8ER) is used on the downstream side of the extension power supply unit.
• When the main unit is located on the upstream side of the extension power supply unit
The power is supplied from the main unit.
→ For details, refer to Chapter 6
• When the input/output powered extension unit is located on the upstream side of the extension power
supply unit
The power is supplied from the 24V DC service power supply of the input/output powered extension unit.
→ For details, refer to Chapter 6
2. Grounding and power cables should be positioned to exit the unit from above.
→ For details, refer to Subsection 9.4.4 and Subsection 9.4.5.
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