Emc Device Classifications; Emc Measures - Fronius VR 1500-PAP Bedienungsanleitung

Position the device with sufficient insulation against electrically conductive environments,
such as insulation against conductive floor or insulation to conductive racks.
If power distribution boards, twin-head mounts, etc., are being used, note the following:
The electrode of the welding torch / electrode holder that is not used is also live. Make
sure that the welding torch / electrode holder that is not used is kept sufficiently insula-
ted.
In the case of automated MIG/MAG applications, ensure that only an insulated wire elec-
trode is routed from the welding wire drum, large wirefeeder spool or wirespool to the
wirefeeder.
EMC Device Clas- Devices in emission class A:
sifications -
-
Devices in emission class B:
-
EMC device classification as per the rating plate or technical data.

EMC measures

In certain cases, even though a device complies with the standard limit values for emissi-
ons, it may affect the application area for which it was designed (e.g. when there is sen-
sitive equipment at the same location, or if the site where the device is installed is close
to either radio or television receivers).
If this is the case, then the operator is obliged to take appropriate action to rectify the
situation.
Check and evaluate the immunity to interference of nearby devices according to national
and international regulations. Examples of equipment that may be susceptible to interfe-
rence from the device include:
-
-
-
-
Supporting measures for avoidance of EMC problems:
1.
2.
3.
4.
5.
40
Are only designed for use in industrial settings
Can cause line-bound and radiated interference in other areas
Satisfy the emissions criteria for residential and industrial areas. This is also true for
residential areas in which the energy is supplied from the public low-voltage mains.
Safety devices
Network, signal and data transfer lines
IT and telecommunications devices
Measuring and calibrating devices
Mains supply
- If electromagnetic interference arises despite the correct mains connection, ad-
ditional measures are necessary (e.g. use of a suitable line filter)
Welding power-leads
- must be kept as short as possible
- must be laid close together (to avoid EMF problems)
- must be kept well apart from other leads
Equipotential bonding
Earthing of the workpiece
- If necessary, establish an earth connection using suitable capacitors.
Shield, if necessary
- Shield other devices nearby
- Shield the entire welding installation