ABB ACS580-07 Hardware Manual page 86

Note 2: If the outer surface of the shield is non-conductive:
•
Cut the shield at the midpoint of the bare part. Be careful not to cut the conductors or
the grounding wire (if present).
86 Electrical installation
•
Turn the shield inside out to expose its conductive surface.
•
Cover the turned shield and the stripped cable with copper foil to keep the shielding
• Cover the turned shield and the stripped cable with copper foil to keep the shielding
continuous.
continuous.
A B
2
1
Note for top entry of cables: When each cable has its own rubber grommet, sufficient IP
and EMC protection can be achieved. However, if very many control cables come to one
Note for top entry of cables: When each cable has its own rubber grommet, sufficient IP
and EMC protection can be achieved. However, if very many control cables come to one
cabinet, plan the installation beforehand as follows:
cabinet, plan the installation beforehand as follows:
1. Make a list of the cables coming to the cabinet.
1. Make a list of the cables coming to the cabinet.
2. Sort the cables going to the left into one group and the cables going to the right into 2. Sort the cables going to the left into one group and the cables going to the right into
another group to avoid unnecessary crossing of cables inside the cabinet.
another group to avoid unnecessary crossing of cables inside the cabinet.
3. Sort the cables in each group according to size.
3. Sort the cables in each group according to size.
4. Group the cables for each grommet as follows ensuring that each cable has a proper
4. Group the cables for each grommet as follows ensuring that each cable has a proper contact to the cushions on both sides.
contact to the cushions on both sides.
Cable diameter in mm
Cable diameter in mm
< 13
< 17
< 25
5. Arrange the bunches according to size from thickest to the thinnest between
> 25
conductive cushions.
5. Arrange the bunches according to size from thickest to the thinnest between the EMI
conductive cushions.
6. If more than one cable go through a grommet, seal the grommet by applying Loctite
5221 (catalogue number 25551) inside the grommet.
6. If more than one cable go through a grommet, seal the grommet by applying
5221 (catalogue number 25551) inside the grommet.
C
A
B
C
2
1
3
2
4
3
4
Max. number of cables per grommet
≤ 13
≤ 17
< 25
≥ 25
A Stripped cable
Stripped cable
B Conductive surface of the shield exposed
Conductive surface of the shield exposed
C Stripped part covered with copper foil
Stripped part covered with copper foil
1 Cable shield
Cable shield
2 Copper foil
Copper foil
3 Shielded twisted pair
Shielded twisted pair
4 Grounding wire
Grounding wire
Max. number of cables per grommet
4
4
3
2
3
1
2
1
Electrical insta