User`s manual

SECTION 2: SAFETY & EMC INSTRUCTIONS DS2100 User's Manual
C27750-001 PAGE 2-19
EMC filter can produce high leakage currents to ground (Protective Earth). The current levels associated with individual
filters are detailed in the associated filter datasheet.
2.3.3 EMC requirements for cables
Avoid close parallel routing of signal cables and power cables. Always use the minimum length of cable necessary and
install all cables in a fixed routing.
Data signal cables, motor power and resolver/signal cables, regen resistor cables and power input cables shall have
segregated routings. Where cable routings must intersect, it is recommended that they intersect at an angle of 90 degrees,
to minimise EMC noise coupling.
Where signal and power cables must run in parallel it is recommended that these cables are separated by at least 20 cm.
Where possible cables shall be routed in earthed shielded cable ducting, to minimise electromagnetic noise coupling.
Use shielded cable to connect the external regen resistor (if installed) to the DS2100. The length of this cable shall be as
short as possible. The shields of these voltage supply cables shall be earthed to Chassis Earth using the EMC kit or the
panel earth bar. Alternatively, if the cable is required to pass through an enclosure panel earthed to Chassis Earth, the
shield may be earthed to the panel by use of a 360 degree metal cable gland. If this is not possible, a copper strap of
minimum length should be used. See Figure 2.1 Partition Crossing
Figure 2.1 Partition Crossing
CAUTION
: The filter must be connected to earth before connecting
the supply.
WARNING
: High voltage –Internal filter capacitors discharge time:
approx. 10 seconds.
User's whose machine installations require for CE-
Compliance should read this Section .
Required for
CE-Compliance