• Do not ground the outer shield of the cable here since it is grounded at the cable entry.
• Keep any signal wire pairs twisted as close to the terminals as possible. Twisting the
wire with its return wire reduces disturbances caused by inductive coupling.
At the other end of the cable, leave the shields unconnected or ground them indirectly via
a high-frequency capacitor with a few nanofarads, eg. 3.3 nF / 630 V. The shield can also
be grounded directly at both ends if they are in the same ground line with no significant
voltage drop between the end points.
44 Electrical installation
Summary of Contents for ACS880-607LC
Page 1: ... ABB INDUSTRIAL DRIVES ACS880 607LC 3 phase dynamic brake units Hardware manual ...
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Page 72: ...7 After the module has drained disconnect the piping from the module 72 Maintenance ...
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Page 95: ... Bottom entry and exit of cables Dimensions in mm 1 mm 0 0394 in Technical data 95 ...
Page 96: ...Dimensions in mm 1 mm 0 0394 in 96 Technical data ...
Page 97: ... Top entry and exit of cables Dimensions in mm 1 mm 0 0394 in Technical data 97 ...
Page 104: ...Brake unit with bottom exit Dimensions in mm 1 mm 0 0394 in 104 Dimension drawings ...
Page 105: ...Brake unit with top exit Dimensions in mm 1 mm 0 0394 in Dimension drawings 105 ...
Page 106: ...Bottom Top Dimensions in mm 1 mm 0 0394 in 106 Dimension drawings ...