EN – R1…R4 Quick installation guide 27
Switch off the power and open the cover
See figure B1 on page 431.
2. Switch off the power from the drive.
3. Remove the front cover: Loosen the retaining screw, if any, with a screwdriver (3a)
and lift the cover from the bottom outwards (3b) and then up (3c).
Install the cable box
Only for frames IP21, R1….R2 and IP55, R1….R2.
See figures B1 and B2 on page 431.
4. IP21, R1….R2:
Remove the screw (4a) and lift the cover off (4b) from the
separate cable box.
5. IP21, R1….R2:
Attach the cable box cover to the front cover.
6. IP21, R1….R2:
Install the cable box to the frame. Position the cable box (6a) and
tighten the screws (6b).
Attach the warning sticker
See figure B2 on page 431.
7. Attach the residual voltage warning sticker in the local language.
Check the compatibility with IT (ungrounded) and corner-
grounded TN systems
EMC filter
The internal EMC filter is not suitable for use on an IT (ungrounded) system or on a
corner-grounded TN system. Disconnect the EMC filter before connecting the drive to
the supply network. Check the table on page 28.
WARNING! Do not install the drive with the internal EMC filter connected on an
IT system (an ungrounded power system or a high-resistance-grounded [over
30 ohms] power system), otherwise the system will be connected to ground potential
through the EMC filter capacitors of the drive. This can cause danger, or damage the
drive.
Do not install the drive with the internal EMC filter connected on a corner-grounded
TN system, otherwise the drive will be damaged.
Note: When the internal EMC filter is disconnected, the drive EMC compatibility is
considerably reduced.
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