Emerson unidrive m200 User Manual page 63

Safety Product Mechanical
information information installation
Figure 4-19 Installation of grounding clamp size 5
Loosen the ground connection nuts and slide the grounding clamp down
onto the pillars in the direction shown. Once in place, the ground
connection nuts should be tightened with a maximum torque of 2 N m
(1.47 lb ft).
Unidrive M200 / M201 User Guide
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Figure 4-20 Installation of grounding clamp size 6
The grounding clamp is secured using the provided 2 x M4 x 10 mm
fasteners. The fasteners should be tightened with the maximum torque
of 2 N m (1.47 Ib ft).
4.8.2 Internal EMC filter
It is recommended that the internal EMC filter be kept in place unless
there is a specific reason for removing it. If the drive is used as a
motoring drive as part of a regen system, then the internal EMC filter
must be removed.
The internal EMC filter reduces radio-frequency emission into the line
power supply. Where the motor cable is short, it permits the
requirements of EN 61800-3:2004 to be met for the second environment
- see section 4.8.4 Compliance with EN 61800-3:2004 (standard for
Power Drive Systems) on page 66 and section on page 176. For longer
motor cables the filter continues to provide a useful reduction in
emission levels, and when used with any length of shielded motor cable
up to the limit for 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 instructions given above require it to be
removed, or where the ground leakage current of 9.2 mA for size 1 is
unacceptable. As shown in Figure 4-21 the size 1 internal EMC filter is
removed by removing the screw (1).
The supply must be disconnected before removing the
internal EMC filter.
WARNING
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