Product Description:

The RECO RMC02.2-2E-1A analog module is produced by Bosch Rexroth Indramat for the RECO Drive Modules series. Within a multi-axis cabinet, it converts sensor currents and voltages into digital data and returns conditioned analog commands to actuators. By providing simultaneous input acquisition and output generation, the unit fits control loops that demand deterministic response, such as position tracking on servo axes or pressure regulation on hydraulic valves.

The module digitizes differential current signals up to ±20 mA with a 16-bit sigma-delta converter, allowing resolution down to 0.61 µA per count when the entire range is used. For voltage sources, four selectable spans of ±0.5/±1/±5/±10 V share the same converter, so both millivolt transducers and ±10 V motion references can be handled on adjacent channels. Output circuitry delivers a programmable 0 to 20 mA current loop that steps in 12-bit increments. Each increment represents 4.88 µA, matching a nominal current output resolution of 9.77 µA when bipolar mode is selected. A conversion latency of <5 µs between the digital command and analog settling helps keep cascade loops stable at high update rates. A 250 Ω sense resistor monitors outgoing drive current and feeds back actual load conditions.

Temperature and resistance measurements are also supported. A built-in current source of 2.5 mA excites external RTDs, permitting direct Pt100 sensing across -100 to +850 °C without additional conditioning hardware. When configured for resistive inputs, the module spans 0 to 2 kΩ internally or 0 to 20 kΩ with external scaling, which is broad enough for strain gauges, potentiometers, and other resistive sensing elements. Overall linearity remains within 0.3% of the upper range limit, while separate error budgets of 0.2% for current resolution and 1% for voltage resolution indicate the maximum deviation under calibrated conditions.