Product Description:

The VT12340 servo amplifier card is manufactured by Bosch Rexroth Indramat and belongs to the VT 1600 Servo Amplifiers series. It occupies a single rack slot and interfaces between a machine controller and field devices, scaling analog or digital commands into controlled current that drives servo valves, motors, or other motion elements. By doing so, it forms a key conversion stage in industrial automation systems that need stable, repeatable actuation.

Nominal board power is supplied at 24 VDC; operation remains stable down to 21 V and up to 35 V, letting the card tolerate typical cabinet fluctuations. The circuitry draws a maximum of 2.3 A, a value that guides power supply sizing, and is protected by a 4 A time-lag fuse. Control loops are refreshed every 0.3 ms, so the amplifier can correct current quickly during rapid load changes. Incoming analog references see a high input impedance of 100 kΩ, minimizing loading on upstream sources, while an internal reference source provides 10 V for potentiometer setpoints or sensor excitation. Four optically isolated digital inputs permit mode selection, and a fault transistor can switch 100 mA at 24 V to signal controller alarms. The measurement scale of 1 V/A simplifies current monitoring at test points, and the RS-485 serial link allows parameter uploads or live diagnostics.

The card follows the Eurocard outline of 100 × 160 mm and plugs into a backplane through a 48-pin DIN 41612 Form F connector, allowing the module to be installed without direct wiring to the circuit board. Up to 16 complete parameter sets are stored in nonvolatile memory, enabling fast changeover between different machine recipes or axes. With a mass of only 0.2 kg, the module places minimal mechanical strain on card retainers and allows dense stacking inside control enclosures while reserving sufficient copper area for heat dissipation.