Mitsubishi Q2ACPU User Manual page 315

19. LOADING AND INSTALLATION
POINT
(1) Use the thickest possible (max. 2 mm
and 24 VDC power cables. Be sure to twist these wires starting at the
connection terminals. For wiring a terminal block, be sure to use a solderless
terminal. To prevent short-circuit due to loosening screws, use the solderless
terminals with insulation sleeves of 0.8 mm (0.03 inch) or less thick. The
number of the solderless terminals to be connected for one terminal block are
limited to 2
(2) When connection is made between the LG and FG terminals, be sure to
ground the wire.
When it is not grounded with LG and FG terminals connected, it will be
susceptible to noise.
Note that each LG terminal has half the potential of the input voltage; you
might get an electric shock if you touch it.
2
(14 AWG)) wires for the 100/200 VAC
Solderless terminals
with insulation sleeves
19 - 23
Terminal block