Assembly
Basic Supply Unit BUG 622, 623 21
Baumüller Nürnberg GmbH 5.94034.07a
4.2 Assembly notes
y The units must be installed in the switch cabinet vertically. The power modules BUS 62x must be
arranged near to the basic supply unit and the DC link must be connected by the connection rails
supplied with the unit.
When delivered, the connection bars are fastened to the front bars of the units
BUS 62x
.
y Ventilation must be in the direction from bottom to top.
y Unrestricted ventilation must be guaranteed.
y A space of at least
100 mm
must be left above and below the units, and sufficient cool air and air circulation is to be provided.
y Coolant temperature 50 mm under the units, up to 40 °C. With higher temperatures (up to max.
55 °C), power output of the units must be reduced by 3% per °C.
y Do not locate any additional sources of heat above or below the units.
WARNING
Inappropriate lifting can cause personal injury or damage to material assets. Qualified personnel only
may lift the unit using suitable equipment.
DANGER
Longer connections as by the connection bars supplied with the unit are not permitted, as they may
cause damage to the equipment.
The discharge time of live parts is > 1 min
WARNING
The following measures must be strictly observed to avoid the danger of device overheating.
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