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7.12.11
E.M.C Compliance - Installation Requirements
The RD379 is normally supplied with a (RITTAL) KL 1503 housing in order to ensure
compliance with the European Directives on E.M.C. There is also a mandatory
requirement to specify the installation parameters, in order to comply with the European
Directives on E.M.C.
The RD379 fully optioned has been installed, tested and found to comply under the
following minimum requirements:
The RD379 relies on Pulse Width Modulation to give motor drive waveforms and speed
control. These waveforms have rapid rise and fall times for efficiency purposes. They
are therefore rich in harmonics, which lie at the audio end of the spectrum (1kHz -
100kHz). A metallic shield must be provided for the cables between the RD379 housing
and the case of the pan and tilt head.
All cables between the Pan and Tilt Head and the controller, including the video cable
must be enclosed in a metallic shield. The shield may be an overall flexible metallic
conduit or individually shielded cables. In the case of individually shielded cables all
cable screens must be bonded to ground at the entry/exit plate of the housing and at
the case (enclosure) of the Pan and Tilt Head.
The video and control cables, from the controller housing to the MAXPRO-Net system,
must be fitted with Ferrite Shielding Beads type 43-6301 or equivalent. The beads are to
be located on the cables at a point just inside the enclosure. A compliance kit of Ferrite
Shielding Beads is available from the supplier.
There is no requirement for Ferrite Shield Beads on the motor drive, video and position
sense cables from the controller to the Pan and Tilt Head providing the shielding conduit
and/or cable does not leak Radio Frequency energy. In the event of there being any
doubt as to the effectiveness of the shielding at MF, HF and above, shield beads should
be fitted.
For the purpose of meeting the EMC Directives only CE approved cables, Cameras and
Pan and Tilt Heads shall be used.
Rev. C
CAUTION: In addition the RD379 must be installed in a
manner that will comply with the safety and services
segregation requirements as set out in the 16th edition of
the IEE Wiring Regulations or applicable local Electrical
Safety Regulations.
7.12-12
HMXMU001018
10/06
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