Product Description:

The VT 16000-2X-121 is a servo amplifier module produced by Bosch Rexroth Indramat within the VT 1600 Servo Amplifiers series. Designed for electro-hydraulic motion control, the unit converts numerical setpoints from a supervising PLC into proportional valve currents and pressure commands so a hydraulic axis follows programmed positions, speeds, and forces. By integrating dedicated controllers for position, pressure, and axis synchronization, the device forms the closed-loop core of presses, molding machines, and other industrial automation cells.

The amplifier interfaces with sensors and actuators through several signal channels. The combo input module provides 8 analog inputs for potentiometers, pressure transducers, or displacement probes, while its output side delivers 4 analog outputs to command proportional valves or external drives. For position capture, the counter module supplies 2 encoder channels that accept incremental feedback, and the digital board presents 8 in / 8 out digital I/O for limit switches or status relays. These resources coordinate up to 4 hydraulic axes, allowing simultaneous closed-loop control without expanding the main rack.

Software functions extend the range of applications supported by the module. The internal memory can store up to 2000 NC sets, giving each axis individual velocity, acceleration, and pressure profiles selected by field logic. For complex tooling alignment, the controller supports 32 cross-axis cams that generate position-dependent outputs, synchronizing slave cylinders with a master stroke through the PI synchronizing controller and the SSI board’s four extra encoder channels. The backplane accepts four peripheral boards and communicates with PLCs that support SIMATIC S5-115U/S5-135U/S5-155U/S7-400 compatibility. All motion, pressure, and diagnostic routines use DIN 66 025 programming, allowing existing ladder or statement-list projects to transfer without modification.