ANCA Motion AMD5x Series, User Manual

Page: 79 / 170

Power Wiring
ANCA Motion D-000129 Rev 09 67
5
Installation Guidelines of EMC Components 5.5.3

Install the EMC components as close as possible to the drive.

A shielded cable is recommended if the distance between the EMI filter and the drive exceeds 30cm.

Minimize cross talk of “clean” lines (mains supply to EMI filter input) to “noisy” power cables by careful
routing and cable segregation.

It is preferable to mount EMC components on a 3mm thick (or greater) bare galvanised steel, zinc-
plated or aluminium panel to provide a low impedance return path.

Connect EMC components to PE for safety requirements, but note that the PE cable does not provide a
low impedance return path for common mode currents due to its cable length and the skin effect of
conductors. Best EMC equipotential bonding is achieved using careful mounting or use of braided earth
straps (refer to 5.4 Grounding ).

Minimize motor cable length, and use correctly shielded motor cables (refer to 5.6.4 Motor Power Cable
Shielding ). For longer cable lengths a ferrite ring on the drive output will reduce EMC noise.

Ensure that the EMI filter is always used with a line inductor that reduces rms currents, otherwise these
may lead to currents exceeding the EMI filter rating.

Ensure the EMI filter is connected to the mains supply for maximum performance (refer to Figure 5-6)

Ensure the current rating of EMC components is coordinated with the mains power disconnect and
protection devices. Following the recommendations in Table 23 and Table 24 will ensure this
coordination.
5.6
Motor Connections
The servo motor phase wires (U, V, W) must be correctly connected to the Drive output (X11) to ensure the servo
motor operates properly. See
Figure 5-7
Do not connect 3 phase AC mains power supply to the Drive (U, V, W) terminals, otherwise damage may occur
to the Drive.
The motor PE must be connected to the Drive connector PE terminal (X11). Do not connect directly to the
mains supply protective earth as this will increase EMC noise.
Motor
U
V
W
Minimise
unshielded
lengths
Earth shield connected
360° to gear tray or
armature bracket
X11
AMD5x
Drive
1
2
3
4
PE
Figure 5-7: Motor connections and shielding