Mitsubishi Electric MELSEC-F FX3G Series - Extension Power Supply Unit Related Precaution

17 Extension Power Supply Unit
17.3 Extension Power Supply Unit Related Precaution
289
FX3G Series Programmable Controllers
User's Manual - Hardware Edition
11
High-Speed Counters
12
Output Wiring
13
Wiring for Various Uses
14
Test Run, Maintenance, Troubleshooting
15
Input/Output Powered Extension Units
16
Input/Output Extension Blocks
17
Extension Power Supply Unit
18
Other Extension Units and Options
19
Display Module
20
Terminal Block
17.3 Extension Power Supply Unit Related Precaution
1. Do not use when combining with a DC power supply type main unit.
2. 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
3. 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.