102 Unidrive M/HS Frame 5 to 6 Power Installation Guide
Issue Number: 9
Emission
The drive contains an in-built filter for basic emission control. An additional optional external filter
provides further reduction of emission. The requirements of the following standards are met,
depending on the motor cable length and switching frequency.
Table 5-31 Size 5 emission compliance (200 V drives)
Table 5-32 Size 5 emission compliance (400 V drives)
Table 5-33 Size 5 emission compliance (575 V drives)
Motor cable
length (m)
Switching Frequency (kHz)
234681216
Using internal filter:
0 – 2 C3 C4
Using internal filter and ferrite ring (1 turn – no advantage to 2 turns):
0 – 2 C3 C4
0 – 5 C3 C4
0 – 7 C3 C4
0 – 10 C3 C4
Using external filter:
0 – 20 R (C1) R (C1) I (C2) I (C2) I (C2) I (C2) I (C2)
20 – 100 I (C2) I (C2) C3 C3 C3 C3 C3
Motor cable
length (m)
Switching Frequency (kHz)
2 3 4 6 8 12 16
Using internal filter:
0 – 4 C3 C4
0 – 10 C3 C4
No advantage to using ferrite ring
Using external filter:
0 – 20 R (C1) R (C1) I (C2) I (C2) I (C2) I (C2) I (C2)
20 – 100 I (C2) I (C2) C3 C3 C3 C3 C3
Motor cable
length (m)
Switching Frequency (kHz)
2 3 4 6 8 12 16
Using internal filter:
-C4
Using internal filter and ferrite ring (2 turns):
0 – 4 C3 C4
0 – 2 C3 C4
Using external filter:
0 – 20 R (C1) R (C1) I (C2) I (C2) I (C2) I (C2) I (C2)
20 – 100 I (C2) I (C2) C3 C3 C3 C3 C3
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