Mitsubishi Electric MELIPC MI5000 Series User Manual page 33

Wiring example
The following shows a wiring example for the power supply module.
INPUT
AC
Precautions
• Additionally, fully tighten terminal block screws that do not have wiring attached. If these are not fully tightened, then during
operation these may loosen or fall out because of vibration.
• Wiring must be twisted tightly starting from the terminal connection. Also, use the thickest wire (minimum 2) to reduce
the voltage drop.
• For the wiring to a terminal block, use a solderless terminal.
• To prevent a short-circuit while loosening screws, use a solderless terminal (1) with an insulation sleeve of 0.8 mm or less.
Note that up to 2 solderless terminals (1) can be connected per terminal block (2).
(2)
(1)
• For the LG and FG terminals, short by using the thickest and shortest ground cable possible (minimum of 2), and
ensure this is grounded. Failure to ground may result in deterioration of the signal from noise. Additionally, the LG terminal
has half of potential of the input voltage, so ensure precautions are taken against electric shock.
• Provide independent grounding when possible. In addition, grounding work is to be to a Class D grounding (third class
grounding). (Insulation resistance of 100Ω or lower )
• For the ERR+ and ERR- terminals, use wires with a thickness at least 0.75  and length of 30 m or less. When using
cables longer than 3 m, either twist the cables or use a cabtyre cable.
ERR+
ERR-
FG
LG
INPUT
AC100/240
2 PRODUCT INSTALLATION
2.3 Wiring the Power Supply Module
2
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