Cable Separation Distance; Shield Connection; Installations According To European Directive Of Electromagnetic Compatibility - WEG CFW300 User Manual

Installation and Connection
For the correct connection of the control, use:
1. Gauge of the cables: 0.5 mm² (20 AWG) to 1.5 mm² (14 AWG).
2. Maximum torque: 0.5 N.m (4.50 lbf.in).
3. Wiring of the connector of the control board with shielded cable and separated from the
other wiring (power, command in 110 V / 220 Vac, etc.), according to
Separation Distance on page
in perpendicularly among them, keeping the minimum separation distance of 5 cm at the
crossing point. Connect the shield according to the figure below:
Inverter
side
4. Relays, contactors, solenoids or coils of electromechanical brake installed close to the
inverters may occasionally generate interference in the control circuitry. To eliminate this
effect, RC suppressors (with AC power supply) or freewheel diodes (with DC power supply)
must be connected in parallel to the coils of these devices.
5. When using the external HMI (refer to
that connects to the inverter must be separated from the other cables in the installation,
keeping a minimum distance of 10 cm (3.95 in).

3.2.6 Cable Separation Distance

Provide separation between the control and the power cables according to
3.3 I N S TA LL ATI O N S ACCO R D I N G TO E U RO PE A N D I R ECTI V E O F
ELECTROMAGNETIC COMPATIBILITY
The CFW300 inverters feature external RFI filter to reduce electromagnetic interference (refer
to Chapter 7 ACCESSORIES on page
the requirements of the directive of electromagnetic compatibility.
These inverters were developed for professional applications only. Therefore, the limits for
emission of harmonic currents established by the EN 61000-3-2 and EN 61000-3-2/A 14
standards are not applicable.
18 | CFW300
18. If those cables must cross other cables, it must be done
Figure 3.4: Shield connection
Chapter 7 ACCESSORIES on page
Table 3.2: Separation distance between cables
Output Rated
Current of the Cable Length
Inverter
≤ 100 m (330 ft)
≤ 24 A
> 100 m (330 ft)
30). Those inverters, when properly installed, meet
Item 3.2.6 Cable
Insulate with tape
Do not ground
Table 3.2 on page
Minimum
Separation
Distance
≥ 10 cm (3.95 in)
≥ 25 cm (9.85 in)
30), the cable
18.