BONFIGLIOLI Vectron Syn10 S115 01 Operating Instructions Manual page 18

Class A:
When the distance between the inverter and motor is longer than 100 meters, cable wire should
be carefully chosen to reduce the wiring resistance below 3% and the voltage drop
(V) = √3 x Wire resistance (Ω/km) x wire length (m) x current x 10
(B) Control circuitry wiring must be separated terminated and away from the primary
power circuitry and other high-voltage or large-current power lines to avoid noise
interference.
To reduce the noise interference and avoid possible operational problems, shielded
twisted pair cable should be used to wire the control circuitry. Please refer to following
diagram. Connect the shielding wire onto the grounding terminal. Only connect one end of
the shield.
Wiring distance must be under 50m.
To Inverter terminal
Connect Shield
Connect to system grounding terminal
(C) The grounding terminal of the inverter must be correctly grounded in compliance
with 200V class type three grounding.
Grounding wire should be wired in accordance to electrical equipment (AWG) with the
length of the grounding wire as short as possible.
Drive
Glove
Shielding
Wrapped with
insulating tape
14
14
-3
To control machine
Do not connect the shielding
wire at this end