Mitsubishi MELSEC QD75P User Manual page 84

4 INSTALLATION, WIRING AND MAINTENANCE OF THE PRODUCT
[Wiring examples using duct (incorrect example and corrected example)]
Control panel
Control panel
(11) The influence of noise may be reduced by installing ferrite cores to the cable
(12) If compliance with the EMC directive is not required, the influence of external
Relay
Drive Drive
unit unit
Noise source
(power system,
etc.)
Relay
Noise source
(power system,
etc.)
connected to the QD75 as a noise reduction technique.
For the noise reduction techniques related to connection with the servo amplifier,
also refer to the instruction manual of the servo amplifier.
noise may be reduced by making the configuration compliant with the EMC
directive.
For the configuration compliant with the EMC directive, refer to Chapter 3 "EMC
AND LOW-VOLTAGE DIRECTIVES" in the User's Manual (Hardware) of the
used CPU module.
Get other manuals https://www.bkmanuals.com
Relay
Relay
QD
PLC
75
Changed
Relay
Relay
QD
PLC
75
Drive Drive
unit unit
4 - 12
MELSEC-Q
Wiring duct
The drive units are placed
near the noise source.
The connection cable between
the QD75 and drive units is
too long.
Wiring duct
The QD75 and drive units are
placed closely. The connection
cable between the QD75 and
drive units is separately laid
from the power line (in this
example, the cable is outside of
the duct) and is as short as possible.