Mitsubishi Electric NZ2GN2B1-32D, User Manual

Page: 251 / 268

APPX
Appendix 4 EMC and Low Voltage Directives
249
A
40-pin connector
When wiring the 40-pin connector, take the following measures to reduce noise.
■
Wiring example (when shielded cables are used)
The following figure shows an example of noise-reducing measures for wiring (when A6CON1 is used).
■
Processing example of shielded cables
(1) Keep the distance between the connector and shielded cables as short as possible.
(2) Use an FG wire of 2
 or thicker and as short as possible to ground it to the control panel. (Ground the FG wire on the module side (at the closest possible
point to the module.))
(3) Use shielded cables.
(1) Strip the jacket of each shielded cable.
(2) Choose one shielded cable, and solder its shield to the FG wire.
(3) Bind shields of shielded cables together with a conductive tape.
(4) Cover connector pins with heat-shrinkable insulation tubes to protect signal wires. If signal wires are uncovered, they may be affected by static electricity,
resulting in malfunction of the module.
(5) Cover the shields with an insulating tape.
A6CON1
(3)
(2)
(1)
(5)
(4)
(2)
(1), (3)