Digitax HD M75X Series Installation and Technical Guide
65
Issue Number: 5
4.10.3 Internal EMC filter
It is recommended that the internal EMC filter be kept in place unless there is a specific reason for disconnecting it.
The internal EMC filter reduces radio-frequency emissions into the line power supply. Where the motor cable is short, it permits the requirements of
EN 61800-3:2004+A1:2012 to be met for the second environment.
For longer motor cables, the filter continues to provide a useful reduction in emission level, and when used with any length of shielded cable up to the
limit of the drive, it is unlikely that nearby industrial equipment will be disturbed. It is recommended that the filter be used in all applications unless the
ground leakage current is unacceptable or the above conditions are true.
Figure 4-13 Disconnection of the internal EMC filter on Frame 1
•
To electrically disconnect the internal EMC filter, remove the screw (
1
) as shown above.
The supply must be disconnected before disconnecting the internal EMC filter.
WARNING
1
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