Beckhoff PS2001-2440-0000, Документация

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Basics
PS2001-2440-0000 10 Version: 1.0
3 Basics
Principle of operation
If the power supply unit supplies sufficient voltage, the buffer module stores energy in the integrated
electrolytic capacitors. In case of a voltage drop or failure, this energy is fed to the DC link in a controlled
manner.
Fig. 1: Functional principle of the buffer module
Bridges power faults without interruption
Statistics show that 80% of all power faults last less than 0.2 s. These power faults are fully bridged by the
buffer unit. This increases the reliability of the complete system.
Fig. 2: Bridging power failures
Extended hold-up time
Following a power failure or a power cut, the buffer unit maintains the load current for a defined timespan.
Process data can be saved and processes ended before the DC voltage is switched off. A controlled restart
is then possible.
Fig. 3: Extended buffer time in case of a power failure
Simple to handle, extendable and maintenance-free
The buffer module requires no control wiring. It can be inserted anywhere in parallel with the load circuit.
Buffer modules can be connected in parallel in order to increase the output current capacity or the hold-up
time.
Fig. 4: Parallel connection without control wiring