SITOP PSU300S
Manual, 12.2016, C98130-A7587-A1-7-7629
53
Applications
9
9.1
Parallel connection to increase the power rating
To increase the power rating, power supplies of the same type can be directly connected in
parallel.
The following must be observed:
●
The cables connected to each power supply at terminals "+" and "-" must have identical
lengths and the same cable cross-sections (or the same impedance) up to a common
external connection point (terminal strip) if possible.
●
The power supplies connected in parallel must be switched on simultaneously with a
common switch in the line feeder cable (e.g. with the main switch available in control
cabinets).
●
The output voltages measured in no-load operation for the power supplies that are not yet
connected in parallel should not deviate more than a maximum of 50 mV. This usually
corresponds to the factory setting. If the output voltage is changed, you should connect
the "-" terminals and then, in no-load operation, measure the voltage difference between
the "+" terminals that have not yet been connected. The voltage difference should not
exceed 50 mV.
Figure 9-1
Parallel connection
Note
It is not permissible to take into account simultaneous overload capability (Extra-Power
150% for 5 s/min) of several power supplies connected in parallel when configuring the
power supply system.
Содержание SITOP PSU300S
Страница 8: ...Safety instructions SITOP PSU300S 8 Manual 12 2016 C98130 A7587 A1 7 7629 ...
Страница 34: ...Installation 5 2 Output side connection SITOP PSU300S 34 Manual 12 2016 C98130 A7587 A1 7 7629 ...
Страница 46: ...Technical data 6 9 Dimension drawing SITOP PSU300S 46 Manual 12 2016 C98130 A7587 A1 7 7629 ...
Страница 64: ...Environment SITOP PSU300S 64 Manual 12 2016 C98130 A7587 A1 7 7629 ...