Everest XCR - Product Manual |
Wiring and Connections
INGENIA | 08/04/2019
34
• To reduce the return path impedance the
motor frame should be directly wired
to drive PE
terminals or enclosure.
• PE wiring should be as close as possible to motor power cables.
• In order to avoid ground loops, it is a good practice to have a
central earth connection point (or bus)
for all
the electronics of the same bench. If multiple drives are supplied from the same power supply or supply PE
to drive PE connection is not practical (not enough connection terminals) connect all PE terminals in a
central connection bus.
• Whenever possible,
mount the drive on a metallic conductive surface
connected to earth like the
heatsink. Use
good quality screws with spring washers that will not oxidize or lose conductivity during the
expected lifetime.
• For achieving low impedance connections, use wires that are
short, thick, multi-strand
. PE wire section
should be the same as power supply cables. Always
minimize PE connection length
.
•
In general it is not recommended to connect PE to the power supply negative GND_P to prevent common
mode noise problems, electrolytic corrosion issues or leakage currents. However this may be done on some
special cases like battery powered systems, systems with isolated power supply and with good knowledge
of the whole wiring layout. In those cases connecting GND_P to PE can provide an advantage for EMC.
•
For best EMC performance Everest XCR should be mounted physically close to the actuator or inside the
enclosure.
In case the Everest XCR is not integrated on the motor or actuator, use
use shielded cables
with isolating
jacket, connecting the shield to PE with a cable clamp to the PE plane. The priorities are:
1. Shield the motor cables, which are the main high-frequency noise source.
2. Shield the feedback signals, which are sensitive signals usually coming from the motor housing. Connect the
shield to one end (drive) to avoid ground loops.
3. Shield I/O signals and communication cables.
The
clamp has to be selected according to the shielded cable diameter
,
ensuring a good support and
connection
between the cable shield and the clamp. Following examples are only suggested for conceptual
purpose:
Description
Image
Part number
Cable Clamp, P-Type Silver Fastener 0.625" (15.88
mm)
Keystone Electronics 8107
Cable Clamp, P-Type Silver Fastener 0.187" (4.75
mm)
Keystone Electronics 8100
Cable Clamp, Saddle Type Stainless Steel 20 mm
RS Pro 471-1300
