Product Description:

The VT-HNC100-1-1X-212 is a digital axis controller manufactured by Bosch Rexroth Indramat within the VT-HNC Digital Axis Controllers series. Classified internally as part of the Digital NC control HNC100 product series, the module serves as the motion core for hydraulic positioning tasks. It interfaces with proportional or servo valves, evaluates sensor feedback, and sends finely scaled commands so that a single hydraulic cylinder reaches target position, velocity, or force setpoints in industrial automation lines such as presses, forming machines, and test benches.

Its analog acquisition front end provides 4 current input channels that accept ±20 mA transducer signals through a 100 Ω input resistance, while a matching set of 4 voltage input channels operates with a 200 kΩ input resistance for ±10 V sensors. Each current sample is digitized with 5 µA resolution and each voltage sample with 5 mV resolution, allowing tight loop gains without quantization noise. Actuator commands leave the board as analog outputs, and the converter granularity is 1.25 mV output resolution, enabling subtle valve spool shifts that translate into smooth hydraulic motion. Analog outputs are available for auxiliary devices, allowing position, pressure, and pilot signals to be handled from one compact controller.

Control algorithms run on a 16/32-bit MC68376 processor, supported by 256 KB of RAM for runtime data, 8 KB of EEPROM for parameter retention, and a 1 MB Flash EPROM that stores operating software and axis-specific programs. The card belongs to component series 1 and is intended as the version for 1 hydraulic axis, so one motion loop uses the available computing resources without sharing delays. Command currents are delivered through 2 current output channels, complementing the analog output stage. Despite its feature set, the module draws only 8 W from the cabinet supply, which simplifies thermal planning.