Phase AxM II 04.09.4, User Manual

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70 | Axm ii / AxP Configurable Motion Control Platform
eration of radio and telecommunication systems and other equipment is possible and that a
suitable immunity of the equipment against electromagnetic disturbances is ensured so that
the operation can be achieved.
Controllers cannot be driven in stand-alone operation and therefore the controllers them-
selves cannot correspond to the EMC directive. The controllers must be integrated into a
drive system to check the compliance with the EC directive relating to EMC of the “Regula-
tion about the electromagnetic compatibility of devices”.
Phase Motion Control has verified the conformity of controllers integrated into a “typical”
drive system (see below). The user can use this example as a reference to design a system
in according to EMCD.
9.7 insTAllATion aS SPeCIfIeD
1. The RFI filter needs a ground connection. The typical application is not operable without
ground connection.
2. The drives are not domestic appliances and are not intended for domestic use.
3. For installations different from the typical application (e.g.: use of unscreened cables,
use of multiple drives, etc.) the conformity to the CE-EMC directive requires a check of
the machine or system regarding EMC limit values.
4. The user of the machine is responsible for the compliance with the EMC directive.
5. Screen all power cables from filters to drive and from drive to motor with a shield cover-
age greater than 85%
6. Signal cables must always be shielded as above.
7. In order to reduce the interference caused by the motor cable and the induced noise in
the encoder connection cable, such wiring must be shorter than 15 meters. This limita-
tion is necessary also for the protection of the drive itself. For longer cables, use appro-
priate snubber inductors.
8. For shield and ground connections, refer to fig. 1.
9. It is important that the power wires are inserted in wire ways different from the signal
and supply one and that any cross between the power and signal cables is carried out at
right angle.
10.A ground cable between the motor and the drive is always necessary with a layout similar
to that of the power cables.
11.If sensitive instruments are used (for example analogue, non preamplified transducers,
load cells, thermocouples etc.) keep a safe distance between the instrumentation ground
and the power ground.
12.The RFI filter which is built into the drives, as well as the high chopper frequency, cause
a certain amount of leakage current to flow in the ground wires. This current may cause
tripping of sensitive differential device and need to be taken into account while sizing
differential protection devices. For the same reason, high frequency noise is normally
conducted through the ground wire; all sensitive devices or cables should be wired at a
distance from the ground wire and cross the same wire at a right angle.
13.All devices (drives, filters, motors) must be grounded on a single ground bar, with ground
wires as straight and short as possible.
9.8 eC DeClARATion oF ConFoRmiTy
Ref. to EC Directive Electromagnetic Compatibility (89/336/EWG)
ULTRACT III series motors and AxM II / AxP brushless drives series are not stand-alone sys-
tems, and are specified to application fields 2 and 3 in accordance with IEC-22G-21/CDV.
As specified in the
EMC IEC-22G-21/
CDV norm, AxM II /
AxP drives are not
domestic applianc-
es and can cause
interference to radio
and tv reception.
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