Product Description:

The VT-HNC100-1-22A-W-08-P-0 is a digital axis controller produced by Bosch Rexroth Indramat and part of the VT-HNC Digital Axis Controllers series. Designed for one hydraulic axis, it performs closed-loop position and force control for a single servo-hydraulic actuator. Within the Digital NC Control HNC100 series, the unit links higher-level automation to hydraulic hardware and executes the motion functions required for the axis under its control. This arrangement lets the controller manage axis behavior directly instead of shifting those tasks to an external PLC program.

I/O and computing resources support medium-scale hydraulic machinery. Field communication with the PLC is handled over Profibus DP, while a service terminal can connect through the RS-232 port at 9.6 kBaud. An MC68376 microcontroller runs the control routines, using 1 MB of flash memory and 256 KB of RAM, while parameter data is stored in an 8 KB EEPROM. The controller accepts four voltage feedback channels with a resolution of 5 mV, and it provides four voltage outputs plus two current output channels for proportional valves. Eight digital inputs receive switch and sensor states, and eight digital outputs send status signals back to the machine control. Total power demand is limited to 8 W, so the unit can operate without forced ventilation.

The remaining hardware values support analog signal handling and cabinet installation. Voltage sensing uses an input resistance of 200 kΩ ±2%, which helps reduce loading on connected transducers. The enclosure measures 71 x 155 x 204 mm, allowing the controller to fit standard DIN-rail installations in compact cabinets. Its mass of 1.0 kg keeps the unit light enough for straightforward mounting and places little load on the rail. The compact housing also leaves room for field wiring, feedback leads, and valve connections in tightly arranged hydraulic control panels.