REXROTH VT5041-24/1-3D analog control

VT5041-24-1-3D-REXROTH

analog control

REXROTH VT5041-24-1-3D The analog control electronics VT5041-3X/... is designed as insertion card in euro format. It is provided with a command value input each for pressure and swivel angle [1] as a standard (optional power limitation). The actual pressure value is measured with a pressure transducer.  The position transducer at the pump measures the actual swivel angle value. The measured actual  values are processed in amplifier [2] and [3] and compared with the provided command values.  The minimum value generator [4] controls that only controller [6] or [10] which is allocated  to the requested operating point is automatically activated. The output signal of the minimum  value generator [4] becomes the command value for the valve control loop. The optionally available power  limitation is automatically activated by the provision of a suitable command value. The power command  value can be provided internally or externally. If necessary, it limits the swivel angle command value  by means of a minimum value generator [5]. The resulting swivel angle command value can be measured at socket 7. The actual valve value (position of the valve spool) is measured with an inductive position transducer.  An oscillator/demodulator switch [7] enhances the signal. The control deviation is generated and processed  in the controller for the valve spool position [8]. The output signal of the valve controller [8] forms the  command value for the self-timing power output stage [9] which controls the proportional solenoid of the valve. The control electronics is equipped with a fault message output where a voltage of 0 V is applied in  an error case (= low-active). At the same time, the "Err." LED flashes. Depending on the jumper J1 configuration,  the valve output stage can be de-energized in case of an error message.

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