Product Description:

The VT-HNC100-1-1X-160 is a Bosch Rexroth Indramat digital axis controller from the VT-HNC Digital Axis Controllers series. It belongs to component series 1 and is intended for one hydraulic axis, allowing proportional valves and position transducers to be coordinated without an additional motion PLC. Power consumption is limited to 8 W, so the board fits easily into compact electrical cabinets while maintaining the ±10 V reference voltage needed for common servo-quality command loops.

This controller offers 4 analog input channels for pressure or displacement sensors and 4 current input channels that accept 4–20 mA loop signals through an input resistance of 100 Ω to minimize measurement error. Voltage feedback devices connect through an input resistance of 200 kΩ, and the card can drive two 4–20 mA actuators against loads up to 500 Ω. Motion commands to external drives are available on 4 voltage output channels, enabling ±10 V control of pumps or servo valves. A reference encoder can be read at 250 kHz through the TTL interface, while an SSI port with 28-bit data width supports absolute position encoders; both interfaces report their counts to the internal processor over a 9.6 kBaud RS-232 maintenance link.

Program storage relies on 1 MB flash EPROM for operating code and parameter sets, backed by 256 KB RAM for real-time data and 8 KB of EEPROM for nonvolatile user variables. The 32-bit MC68376 CPU executes interpolation and axis supervision, delivering deterministic cycle times demanded by hydraulic positioning. A ±25 mV tolerance on the reference voltage supports repeatable analog scaling, and the 28-bit SSI width matches high-resolution linear scales used in presses or test rigs. The board uses a Euro-card format suited to centralized hydraulic motion control with combined signal conditioning, computation, and feedback handling on one module.