Conformal Installation; Emission And Immunity Levels - WEG CFW700 Serie Manual Del Usuario

Installation and Connection

3.3.1 Conformal Installation

1) Inverters with built-in RFI filter CFW700...C3...
2) Sizes A to D inverters with built in RFI filter capacitors grounding screws and size E with J1
cable in the position (XE1). For more information see figure A.6.
3) Shielded output cables (motor cables) and connect the shield at both ends (motor and
inverter) with a low impedance connection for high frequency. Use PCSx-01 kit supplied
with sizes A, B and C inverters. For sizes D and E inverters use the clamps supplied with
the product. Ensure good contact between the cable shield and the clamps. Refer to figure
3.4 and keep the proper separation from other cables according to item 3.2.6 - Cable
Distances. The maximum motor cable length and conduction and radiated emission levels
are presented at table B.6. Use an external RFI filter at the input of the inverter if necessary
to have a lower emission level and/or a longer motor cable length. For more information (RFI
filter commercial reference, motor cable length and emission levels) refer to table B.6.
4) Shielded control cables and separate the remaining cables according to item 3.2.6 - Cable
Distances.
5) Inverter grounding according to the instructions on item 3.2.4 - Grounding Connections.
6) Grounded power supply.

3.3.2 Emission and Immunity Levels

EMC Phenomenon
Emission:
Mains Terminal Disturbance Voltage
Frequency Range: 150 kHz to 30 MHz)
Electromagnetic Radiation Disturbance
Frequency Range: 30 MHz to 1000 MHz)
Immunity:
Electrostatic Discharge (ESD)
Fast Transient-Burst
Conducted Radio-Frequency Common
Mode
Surge Immunity
Radio-Frequency Electromagnetic Field IEC 61000-4-3
Refer to table B.6 for conducted and radiated emission levels accomplished with and without
external RFI filter. The reference model for the external filter is also presented.
24 | CFW700
Table 3.4: Emission and immunity levels
Basic
Standard
It depends on the inverter model and the motor
IEC/EN61800-3 cable length.
See table B.6.
4 kV for contact discharge and 8 kV for air
IEC 61000-4-2
discharge.
2 kV / 5 kHz (coupling capacitor) power input
cables;
1 kV / 5 kHz control cables, and remote
IEC 61000-4-4
keypad cables;
2 kV / 5 kHz (coupling capacitor) motor output
cables.
0.15 to 80 MHz; 10 V; 80 % AM (1 kHz).
IEC 61000-4-6
Motor cable, control and remote keypad (HMI).
1.2/50 μs, 8/20 μs;
IEC 61000-4-5 1 kV line-to-line coupling;
2 kV line-to-ground coupling.
80 to 1000 MHz;
10 V/m;
80 % AM (1 kHz).
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