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CABLING AND CONNECTIONS vacon • 45

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6.1.3 Changing the EMC protection class

The EMC protection level of Vacon NX frequency converters can be changed from class H to class T (and

from class L to T in NX_6 FR6) with a simple procedure presented in the following figures.

Note! After having performed the change check

EMC Level modified

on the sticker included in the NX

delivery (see below) and note the date. Unless already done, attach the sticker close to the nameplate of

the frequency converter.

FR4 and FR5:

Figure 6-2. Changing of EMC protection class, FR4 (left) and FR5 (right). First remove the cable cover.

FR6:

Figure 6-3. Changing of EMC protection class, FR6. The cable cover does not need to be

removed

Remove this screw

Drive modified

Option board:

NXOPT................

IP54 upgrade/Collar

in slot:

Date:...................

A B C D E

EMC level modified: H/L to T

Date:...................

Remove these screws

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 135 136

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Trend NX Variable Speed Drives Manuale Utente Pagina 62