VT 5062 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat VT 5062 is an IO card from the VT-5000 IO Cards series, featuring a PID controller type and an inductive electrical position feedback sensor. It operates at 24 VDC and uses a 32-pin DIN 41612 Form D connector, with a card size of 100 by 160 mm. The VT 5062 is designed for 19-inch rack mounting and has a current-regulated, clocked output stage.
Internal Product Review
The VT 5062 is a PID IO card built for precise control on 24 VDC power. Signal conditioning through an oscillator/demodulator pairs well with electrical position feedback for stable, accurate response. The current-regulated, clocked output stage is a standout feature for consistent closed-loop performance.
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Product Description:
The VT 5062 is an input-output control card produced by Bosch Rexroth Indramat for the VT-5000 IO Cards series. Fabricated in the Eurocard format, it slides into a 19-inch control rack and serves as a compact controller that links field transducers to proportional valve amplifiers. Within an automation loop, the board performs closed-loop regulation so that hydraulic or electromechanical actuators follow commanded positions with minimal steady-state error. Its rack-mounted design allows the control function to be integrated with other compatible cards in a shared enclosure.
The card has the standard Eurocard dimensions of 100 × 160 mm, allowing multiple control channels to fit within a single enclosure. The backplane connection uses a DIN 41612 Form D interface furnished as a 32-pin blade connector. This connector style keeps insertion forces low while maintaining reliable electrical contact under vibration. Internally, a microcontroller runs a PID control algorithm that processes command and feedback signals to regulate the connected actuator. The input stage accepts differential voltage signals to reject common-mode noise picked up along sensor wiring, while the power section operates from a nominal supply of 24 VDC. The supported supply range extends from 22 V to 35 V, allowing the card to continue controlling the valve during brief bus voltage fluctuations. Electrical position feedback reaches the card as an analog signal for closed-loop processing.
The output channel uses a current-regulated, clocked driver to convert the calculated control effort into pulsed coil current for proportional valves, eliminating the need for separate power amplifiers. Position is measured by an inductive transducer. Its carrier signal is generated by an onboard oscillator and recovered by a demodulator, providing the signal conditioning required for position measurement. The reference rail is maintained at 9 V to minimize offset errors. The command potentiometer starts from a raised zero point, providing a small preset bias that helps center the valve spool during setup. This arrangement allows the control circuit to compare the commanded position with the measured position and adjust the output current accordingly.
