Product Description:

The VT-HNC100-1-1X-110-11 digital axis controller is produced by Bosch Rexroth Indramat within the VT-HNC Digital Axis Controllers series. It is intended to coordinate one hydraulic axis in machinery where proportional or servo valves drive linear or rotary movements. By combining signal conditioning, closed-loop control, and fieldbus connectivity in one 19-inch card, the unit supports precise position and force regulation on presses, test rigs, and handling equipment.

The controller is supplied for 1 hydraulic axis, and the designation 1X indicates the first product generation within the HNC100 family. Four differential current inputs accept ±20 mA process signals, and each channel presents 100 Ω resistance with 5 µA resolution to capture valve spool or pressure transducer feedback accurately. Another four voltage inputs with 200 kΩ impedance are available and are resolved to 5 mV for sensors that deliver ±10 V levels. High-speed motion feedback is handled through the incremental encoder interface that tolerates frequencies up to 250 kHz, while four voltage outputs can drive ±10 V commands into loads down to 1 kΩ. A separate group of digital inputs uses 3 kΩ pull-up resistors, and the analog current outputs can feed reference signals into devices with up to 500 Ω load.

Control algorithms run on a 16/32-bit MC68376 microcontroller that accesses 256 KB of battery-buffered RAM for variable storage, 8 KB of EEPROM for parameter retention, and a 1 MB Flash EPROM for program storage. Typical power draw is 8 W, which permits installation in control cabinets with limited thermal margins. This memory arrangement supports local storage of variables, retained parameters, and the controller program without requiring additional external modules.