ABB CI854K01 3BSE025961R1 output module

The current control loop consists of the current controllers, the amplifier stage, the current measurement and the motor windings. The current set values available at the output of the current controller, control the six power switches of the inverter through a pulse-width modulator. With a PWM frequency of 9.5kHz this leads, due to the special activation, to a current ripple of 19kHz and consequently to a merely audible clock noise. This secondary control loop (current) under another one (speed) guarantees a stable control with good dynamics and high rigidity of the drive. This even allows the easy realization of current limitations, necessary to protect the motor and the amplifier, just by limiting the output voltage of the speed controller (current set value).

Power Supply 

· Power amplifier: Rectification and filtering form the direct voltage (intermediate circuit voltage UB), necessary to operate the power amplifier, from the AC power supply. This intermediate circuit voltage can also be fed directly as d.c. voltage. 

· Electronic supply The electronic supply takes place internally through a switched-mode power supply from the intermediate circuit voltage.

Superior products

Main products include DCS control system spare parts, PLC system spare parts and robot system spare parts,Advantage brands: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, B&R, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft and other imported industrial parts

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