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Precaution When Connecting The Uninterruptive Power Supply (ups) - Mitsubishi Electric MELSEC A Series User Manual

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(1) Use thick wires (MAX. 2mm
power supply, and twist the wires from connected terminals. When a
solderless terminal is used, use a solderless terminal with an insulation
sleeve to prevent short-circuit if the terminal screw becomes loose.
(2) When the LG and FG terminals are connected, they must be grounded.
If they are not grounded, the operations will be easily influenced by
noise. Be aware not to touch the LG terminal since it has potential of half
the input voltage.

4.4 Precaution when Connecting the Uninterruptive Power Supply (UPS)

Be sure of the following items when connecting the ACPU system to the
uninterruptive power supply (abbreviated as UPS hereafter) :
Use a UPS which employs the constant inverter power supply method with 5% or
less voltage fluctuation.
Do not use a UPS with the constant commercial power supply method.
) possible for the 100/200VAC and 24VDC


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