Installation
26
Basic Supply Unit BUG 622, 623
5.94034.07a
Baumüller Nürnberg GmbH
5.3
EMC notes
General information on converters
Baumüller units are equipped with IGBTs. Due to their rapid switching operation the power loss in the
converter is minimized. The size of the power modules is thus more and more decreased. The rapid
switching operation of the IGBTs on the other hand leads to electromagnetic influences of other parts.
Interferences may be caused by:
y
capacitive fault currents. This is caused by high voltage peaks and switching of bipolar transistors
and IGBTs.
y
high currents and current peaks in the motor cables The interfering energy bound in magnetic fields
reaches frequencies of a few Hertz up to approx. 30 MHz. Due to the high voltage peaks, additional
electromagnetic fields occur with frequencies of up to approx. 600 MHz.
y
high chopping rates and fast logic circuits (electromagnetic field / 16 MHz .. 1 GHz).
German EMC Law (EMVG)
This converter corresponds to EMVG §6 Section 9 of EMVG (German EMC Law) dated 18 Sept.98.
"Devices, which are exclusively manufactured or stocked as vendor parts or spare parts for further
processing by industrial companies or craftsmen or by other specialists in the field of electromagnetic
compatibility do not need to comply with the protective requirements of Paragraph 4, Section 1 no. 1 to
3 and 5.
This takes into account that EMC is essentially dependent on the subassemblies of the individual
modules and components in the switch cabinet.
Measure to ensure EMC safety
To minimise the above mentioned electromagnetic influences certain conditions have to be observed
when laying and shielding cables and when connecting filters.
The information on the next pages is intended to allow the user to configure his plant according to the
latest knowledge in the field of EMC and to comply with legal regulations.
Summary of Contents for BUG 622
Page 1: ...E 5 94034 07a Manual Basic Supply Unit BUG 622 623 ...
Page 8: ...Safety Notes 8 Basic Supply Unit BUG 622 623 5 94034 07a Baumüller Nürnberg GmbH ...
Page 16: ...Technical Data 16 Basic Supply Unit BUG 622 623 5 94034 07a Baumüller Nürnberg GmbH ...
Page 20: ...Assembly 20 Basic Supply Unit BUG 622 623 5 94034 07a Baumüller Nürnberg GmbH 4 1 Dimensions ...
Page 50: ...Maintenance 50 Basic Supply Unit BUG 622 623 5 94034 07a Baumüller Nürnberg GmbH ...
Page 57: ......