EasyDrive CV3100 Series Instruction Manual page 42

CV3100 series and MINI series high performance general purpose inverter instruction manual
3.7.2 Field wiring and grounding
(1) The line connecting the inverter to
motor (U, V, W terminal outgoing
wire) shall be avoided laying with
the power line in parallel (R, S, T
or R, T terminal input wire). And
they shall be kept over 30cm gap.
(2) Three motor lines of inverter U, V,
W terminals shall be put in the
metallic pipe or metallic wiring
groove.
(3) Control signal line shall be shielded
cable; the shielded layer is
connected to PE terminal of inverter, and earthed near the single end of inverter
side.
The PE terminal grounding cable can't be provided with other equipment earth
(4)
wire, it must be connected to grounding plate directly.
(5) Control signal wire can't be laid with cable of heavy current in parallel or in a near
distance ( R, S, T or R、T and U, V, W), and they can't be tied together either, shall
be kept over 20-60cm distance (relevant to strong current size). As is shown in
diagram 3-16, they shall be laid in vertical if need cross .
(6) Light-current grounding wires like signal control line, sensor line and
strong-current grounding wire must be earthed independently.
(7) Never connect other equipment to power supply input terminal (R, S, T or R, T)
of inverter.
Control signal wire
Diagram 3-16 System wiring
3-20
Power line or motor