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PS-60 User Guide 6125-2200
13. Operating Modes
Depending on the intended use, the power supply can be run in series or parallel operation.
13.1 Series Operation
To double the output voltage, connect two power supplies in series. Only use power supplies
with the same performance class and configuration for series operation. If two 24 V DC
power supplies are connected in series, an output voltage of 48 V DC is available to supply
the loads.
Figure 22 Schematic diagrams in series operation
13.2 Parallel Operation
You can connect several power supplies in parallel in order to increase the power or to
supply the loads redundantly.
Figure 23 Schematic diagram in parallel operation
Observe the following points when carrying out parallel connection:
1. Use power supplies of the same type and performance class
2. Setting the same output voltages
3. Using the same cable cross sections for wiring
4. Using the same cable lengths for the DC convergence point
5. Operating power supplies in the same temperature environment
6. When three or more power supplies are connected in parallel, each output must be
protected (e.g., with circuit breakers or decoupling modules)
