Product Description:

The VT-HNC100-2-2X-M-16-I-0 is a digital NC control module from Bosch Rexroth Indramat, assigned to the VT-HNC Digital Axis Controllers series and the HNC100 digital NC control platform. It controls two hydraulic axes, handling position and velocity loops in automated machinery. By accepting commands from higher-level PLCs and issuing reference voltages to local valves, it closes the motion loop within the cabinet rack where it is mounted.

It interfaces with the plant network through the InterBus S fieldbus, allowing cyclic process data without an external gateway. As a version for 2 hydraulic axes, it offers two independent motion channels and sixteen digital inputs or outputs for local limit switches or valve enables. Operating power must remain within a range of 18 to 36 VDC; outside this range, the controller disables outputs. The analog drive command is issued with 1.25 mV output granularity across the ±10 V span, supporting smooth valve actuation. Configuration and application code are kept in a 1 MB flash EPROM, preserving data when the rack supply is disconnected.

Internally, motion feedback currents are sampled at 5 µA resolution, while voltage feedback channels use 5 mV steps, giving the controller the precision needed for closed-loop hydraulic positioning. A 16/32-bit MC68376 processor executes the NC kernel and manages control functions, and the absence of evaluation electronics on the front panel means diagnostics are performed through service software. Packaged for rack installation, the housing measures 106.5 x 155 x 204 mm and weighs 1.2 kg, so it fits standard 19-inch subracks. Continuous operation draws 8 W, keeping thermal dissipation low. The module supplies a regulated ±10 V ±25 mV reference to proportional valves, and sensor connectivity is limited to external devices because it is delivered without an inductive position sensor.