•
Construct sufficient high-frequency grounding network in the cabinet to avoid voltage
differences and forming of high-impedance radiator structures. A good high-frequency
grounding is made with short flat copper braids for low inductance. One-point
high-frequency grounding cannot be used due to the long distances inside the cabinet.
•
360° high-frequency grounding of the cable shields at the cable entries improves the
EMC shielding of the cabinet.
•
ABB recommends 360° high-frequency grounding of the motor cable shields at their
entries. The grounding can be implemented by a knitted wire mesh screening as shown
below.
3
1
6
4
5
2
Cable
1
Cable tie
2
Strain relief
3
Bare cable shield
4
Knitted wire mesh
5
Cabinet entry plate
6
•
ABB recommends 360° high-frequency grounding of the control cable shields at their
entries. The shields can be grounded by means of conductive shielding cushions pressed
against the cable shield from both directions as shown below.
3
4
5
1
1
2
2
2
Tightening screw
1
EMI conductive cushion
2
Strain relief
3
Grommet
4
Entry plate
5
42 Generic cabinet planning instructions
Summary of Contents for ACH580-04
Page 1: ... ABB DRIVES FOR HVAC ACH580 04 drive modules Hardware manual ...
Page 2: ......
Page 4: ......
Page 54: ...54 ...
Page 88: ...88 ...
Page 100: ...100 ...
Page 118: ...118 ...
Page 122: ...122 ...
Page 124: ...124 ...
Page 128: ...3 6 5 5 128 Maintenance ...
Page 134: ...134 ...
Page 156: ...R10 standard configuration 156 Dimension drawings ...
Page 157: ...R10 with E208 0H354 H356 H370 0H371 Dimension drawings 157 ...
Page 158: ...R10 with option B051 158 Dimension drawings ...
Page 159: ...R10 with option E208 H356 P906 192 Tools R10 3 1 Dimension drawings 159 ...
Page 160: ...R10 with option E208 0H371 H356 0H354 H370 P906 Tools 191 R10 2 1 160 Dimension drawings ...
Page 161: ...R10 with option B051 P906 190 Tools R10 1 1 Dimension drawings 161 ...
Page 162: ...R11 standard configuration 162 Dimension drawings ...
Page 163: ...R11 with option E208 0H371 H356 0H354 H370 Dimension drawings 163 ...
Page 164: ...R11 with option B051 164 Dimension drawings ...
Page 165: ...R11 with option E208 H356 P906 Dimension drawings 165 ...
Page 166: ...R11 with option E208 0H371 H356 0H354 H370 P906 166 Dimension drawings ...
Page 167: ...R11 with option B051 P906 Dimension drawings 167 ...
Page 186: ... Declaration of conformity 186 The Safe torque off function ...
Page 206: ...Dimension drawing 206 External control unit option P906 ...
Page 212: ...212 ...
Page 224: ...224 ...
Page 226: ...226 ...
Page 234: ...234 ...