Solutions to Common EMC Interference Problems
‑104‑
Step
Measure
1
Use shielded cables as the I/O signal cables and connect the
shield to the PE terminal. For details, see "
3.3.4 Control
Cable Shield
"
on page 36
.
2
Reliably connect the PE terminal of the motor to the PE
terminal of the servo drive, and connect the PE terminal of
the servo drive to the PE terminal of the grid.
3
Add an equipotential bonding grounding wire between the
host controller and the servo drive.
4
At the drive output side, wind the output U/V/W cable onto a
magnetic ring for two to four turns. For details, see "
Installing a magnetic ring and a magnetic buckle
"
on page
22
.
5
Increase the filter capacitance for low‑speed DIs. A
capacitance up to 0.1 μF is recommended, as shown in
"
Figure 6–2 I/O signal cables with capacitance increased
"
on
page 104
.
6
Increase the filter capacitance between AI and GND. A
capacitance up to 0.22 μF is recommended.
7
Wind the signal cable onto a magnetic buckle or magnetic
ring for one to two turns. For details, see "
Installing a
magnetic ring and a magnetic buckle
"
on page 22
.
8
Use shielded power cables and ground the shield properly.
Figure 6‑2 I/O signal cables with capacitance increased
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