NF.. line filter
A line filter reduces interference emission via the supply system cable, which is generated by the application inverter. The line filter mainly serves to meet interference voltage limit requirements in the frequency range from 150 kHz to 30 MHz at the line connection.
In addition, a line filter dampens the interference from the supply system affecting the application inverter. The selection of the line filter depends on the nominal line current and the line voltage of the frequency inverter.
To achieve interference emission category C2 according to EN 61800‑3, a line filter must be installed.
Do not switch between the NF.. line filter and inverter.
For further information on selecting a line filter, refer to chapter NF.. line filter.
Power supply module | Line filter | Maximum number of output stages | Total motor cable length | |
|---|---|---|---|---|
SEW‑EURODRIVE | Other manufacturers | |||
MDP90A-0100.. | NF0420-513At maximum power ≤ 10 kW.
| 16
| 600 m
| 400 m
|
MDP90A-0250.. | ||||
MDP92A-0100.. | ||||
MDP92A-0250.. | ||||
MDP90A-0100.. | NF0420-523At maximum power > 10 kW.
| 30
| 800 m
| |
MDP90A-0250.. | ||||
MDP92A-0100.. | ||||
MDP92A-0250.. | ||||
MDP90A-0500.. | NF0910-523
| |||
MDP90A-0750.. | ||||
MDR9.B-0500.. | ||||
MDP90A-1100.. | NF1800-523
| |||
MDR9.B-0750.. | ||||
Separate line filter for MDS90A..
If the MDS90A.. switched-mode power supply module is operated in an axis system with an MDP90A.. or MDR90/91B.., the MDS90A.. switched-mode power supply module requires a separate line filter.
When combined with an MDP92A.. power supply module, the MDS90A.. switched-mode power supply module does not require a separate line filter.
Several switched-mode power supply modules can be connected to one line filter:
- Up to 2 MDS90A.. to NF0055-503
- Up to 5 MDS90A.. to NF0120-503
