Beckhoff PS1011-2420-0000, Документация

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Application notes
PS1011-2420-0000 27 Version: 1.0
4 Application notes
4.1 Charging batteries
Do not use the power supply to charge batteries.
4.2 Series connection
Power supplies of the same type can be connected in series to increase the output voltages. As many
devices can be connected in series as necessary, as long as the sum of the output voltages does not exceed
150Vdc. Voltages with a potential higher than 60Vdc are no longer regarded as safety extra-low voltage and
can be dangerous. Such voltages must be protected with a contact hazard protection.
Avoid application of return voltage (e.g., from a braking motor or battery) to the output terminals.
Keep an mounting distance of 15 mm (left / right) between two power supplies and avoid installing the power
supplies on top of each other. Do not use power supplies in series in any orientation other than the standard
mounting orientation.
Remember that leakage current, electromagnetic interference, input inrush current and harmonics increase
when using multiple power supplies.
Fig. 15: Series connection
4.3 Parallel use to increase power
Do not connect devices for higher output currents in parallel.
4.4 Operation on two phases
The power supply can also be used on two phases of a three-phase system. Such a phase-to-phase
connection is permissible as long as the supply voltage is below 240V+10%.