
Electrical Installation
Operating instructions RLD 77
ELTROPLAN
-
REVCON
Elektrotechnische Anlagen GmbH
4.6
Installation of a power feedback unit in a CE-typical drive system
General
The user is responsible for the compliance of his application with the EC
directives
.
-
If you observe the following measure you can be sure that the drive system
will not cause any power-feed/feedback-unit-caused EMC problems, i.e.
comply with the EMC
Directive when running the machine.
-
If devices which do not comply with the CE requirement concerning noise
immunity EN 61000-6-2 are operated close to the power feed/feedback unit,
these devices may be interfered electromagnetically by the power
feed/feedback units.
Assembly
Connect the power feed/feedback unit and the RFI-filter to the grounded
mounting plate with a wire of large cross section as possible:
–
Mounting plates with conductive surfaces (zinc-coated or stainless steel) al-
low permanent contact.
–
Varnished boards should not be used for installation in accordance with
EMC.
If you use several mounting plates:
–
Connect as much surface of the mounting plates as possible (e.g. with copper
bands)
Ensure the separation of power and control cables.
Cable guides as close as possible to the reference potential. Unguided cables
have the same effect as aerials.
Filters
Use RFI filters which are assigned to the power feed/feedback unit.
RFI filters reduce impermissible high frequency interference to a permissi-
ble value.
Screening
Metallic cable glands ensure a big-surface connection between screen and
housing
If the screened wire are interrupted at relays or terminals:
-
Connect the screens of the wires with a big surface to the mounting plate.
If the mains wires between RFI-filter and power feed/feedback unit are long-
er than 300mm:
-
Use screened mains wires
-
Connect the screen direct at the controller / power feed/feedback unit and at
the RFI-filter to the mounting plate.
Screen the control wires:
-
Connect the screens on the shortest possible way to their terminals.
Earthing
All metallic conduction components (power feed/feedback unit, controller,
RFI-filter) have to be connected to one common earthing point (PE-bus bar).
Observe the in the safety guidelines defined minimum cross sections:
-
For EMC not the cross section, but the surface of a wire and the contact to
the mounting plate is important for the function.
Содержание REVCON RLD
Страница 46: ...Installation Operating instructions RLD 45 ELTROPLAN REVCON Elektrotechnische Anlagen GmbH 2 Enclosure 0 340 ...
Страница 47: ...Installation 46 Operating instructions RLD ELTROPLAN REVCON Elektrotechnische Anlagen GmbH 3 Enclosure 0 341 ...
Страница 48: ...Installation Operating instructions RLD 47 ELTROPLAN REVCON Elektrotechnische Anlagen GmbH 4 Enclosure 0 400 ...
Страница 49: ...Installation 48 Operating instructions RLD ELTROPLAN REVCON Elektrotechnische Anlagen GmbH 5 Enclosure 1 501 ...
Страница 50: ...Installation Operating instructions RLD 49 ELTROPLAN REVCON Elektrotechnische Anlagen GmbH 6 Enclosure 2 701 ...
Страница 51: ...Installation 50 Operating instructions RLD ELTROPLAN REVCON Elektrotechnische Anlagen GmbH 7 Enclosure 3 800 ...
Страница 52: ...Installation Operating instructions RLD 51 ELTROPLAN REVCON Elektrotechnische Anlagen GmbH 8 Enclosure 3 801 ...