2.2
EMR-3MP0 – Installation and Wiring
2.2.1
Grounding
WARNING!
The housing must be carefully grounded. Connect a ground cable (protective earth,
4 to 6 mm2 [AWG 11‒9], tightening torque 1.7 Nm [15 lb⋅in]) to the housing, using the
screw that is marked with the ground symbol (at the rear side of the device).
Moreover, the power supply card needs a separate ground connection (functional earth,
min. 2.5 mm2 [≤ AWG 13], tightening torque 0,56 ‒ 0,79 Nm [5‒7 lb⋅in ]). See the
“Terminal Marking” diagram in Section “DI-4 X – Power Supply and Digital Inputs” to
check for the correct terminal.
All grounding connections (i. e. protective and functional earth) must be low-inductance,
i. e. as short as possible, and national standards – if applicable – must be followed.
CAUTION!
The devices are very sensitive to electro-static discharges.
61
www.eaton.com
EMR-3MP0
2 Hardware
2.2 EMR-3MP0 – Installation and Wiring
