Rockwell Automation WebPak 3000 DC Drives Hardware Reference, Installation and Troubleshooting - Manual (Page 68)

5-10 WebPak 3000 DC Drive Hardware Reference
EMC Filters for WebPak 3000
General Description
Power converters in general cause line disturbances over a wide frequency range.
Through the correct connection of the adapted filters (HF filter or Radio Frequency Interference (RFI)
filter according to the following Table 5.7), the conducted emissions in the frequency range 150 kHz to
30 MHz can be kept below the limits stated in product standard EN 61800-3.
The radiated emissions in the frequency range 30 -1000 MHz will stay below the limits, if for the
installation the same EMC measures are taken into account as for the conducted HF emissions.
NOTE: On all WebPak drives a line input reactor must be connected between filter output and converter
input. This line reactor should be rated for minimum 2% voltage drop on drives up to 500 V and 4% for
690 V drives (selection according to Table 5-6). The drives AC-line input semiconductor protection fuses
as per Table 5.4 must be mounted between filter output and line reactor. Otherwise the filter inrush
current may damage the fuses. For installation instructions refer to Appendix B
HF Filter
If this filter is used on WebPak 3000 converters with AC line input currents above 100 A the HF
emission limits for class A, group 2* (EN 55011) in the 2
nd environment (industrial supply network)
according to the product standard EN 61800-3 are met and the drive fulfills CE conformity.
The HF filter is connected in front of the AC line reactor between the three AC line input phases and the
protection earth conductor PE.
Filter part no.: 839.52-20
Nominal voltage L-L: 690 V
Figure 5.3: HF-Filter dimensions (mm)
PE