VT11073-11 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat VT11073-11 is part of the VT Servo Amplifiers series and supports up to 3 modules with a maximum filtered supply voltage of 36 VDC. This amplifier features a plastic housing and mounts on a DIN 50022 rail. It includes overload, overvoltage, and reverse polarity protection as well as an integrated smoothing capacitor.
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Product Description:
The VT11073-11 servo-amplifier supply card is produced by Bosch Rexroth Indramat for the VT Servo Amplifiers series used in multi-axis motion controllers. Installed ahead of individual amplifier boards, the VT11073-11 conditions incoming direct current and distributes it to several motion channels. It also adds fault isolation so each drive section can maintain stable operation inside compact machinery enclosures. This arrangement lets several axes share a common supply stage while keeping the control stack compact.
The module supports up to 3 modules on a single backplane, which simplifies cabinet layouts because one supply can energize three independent servo cards without extra wiring. Its filtered input accepts a maximum of 36 VDC, helping prevent excess heating in low-power analog stages. A housing molded from plastic keeps weight low and provides inherent insulation between live traces and grounded panels. Quick installation is possible because the base snaps onto a DIN 50022 rail, eliminating the need for screw hardware. To prevent thermal or short-circuit stress, the circuitry includes overload protection that trips when current rises above the safe operating range, allowing operation to resume after the fault is cleared.
Additional safeguards are built in for line anomalies. The power path incorporates overvoltage protection that diverts transients away from attached amplifiers, while reverse polarity protection blocks current flow if the supply leads are connected in the wrong orientation. An integrated smoothing capacitor sits across the output rails; it stores charge to absorb short-duration dips and reduce ripple that could modulate motor current. By reducing ripple and guarding against wiring errors, these features help stabilize the shared low-voltage bus during normal starts and brief supply disturbances.
