Rexroth Digital Valves

Integrated axiscontroller (IAC)

The advantages of distributed intelligence for hydraulicdrive technology are leveraged by Bosch Rexroth through the integration of axiscontroller functions (IAC integrated axis controller).

Our high-response valves with integrated digital axiscontroller actively control the axes independently of the machine control byusing separate motion functionality and process the data of various sensorsthat can be connected directly.

The compact modules arebased on proven proportional and high-response valves and offer a wide varietyof axis controller functions in addition to easy integration in the controlconcept.

IAC-Multi-Ethernet – open, scalable and easy-to-use

IAC-Multi-Ethernet axis controllers have position,pressure, and alternating control capability. The IAC-Multi-Ethernet platformallows machine manufacturers to freely choose from among key Ethernet protocolssuch as sercos, EtherCAT, Ethernet IP, PROFINET RT and Varan. This, in turn,makes it possible for designers to establish a flexible connection to thehigher-level control systems of many different manufacturers. The integratedaxis controller facilitates the direct connection of a wide variety of sensorsvia simple and proven M12 connection technology. In line with our best-in-classmotion control concept, the three most important performance requirements areto ensure a open, scalable and easy-to-use design.

Valve type:

·       4WRPDH (size 6 and 10)

IAC-R axis controllers

IAC-R axis controllers have position, pressure, andalternating control capability and NC functionality for position control.Analog sensors for pressure, a position measurement system with 1 Vss, or anSSI interface can be connected. IAC-R axis controllers are available asPROFIBUS/CAN BUS valves and additionally with clock-synchronized PROFIBUS DP/V2technology (PROFIdrive profile).

Valve type:

·       4WRPNH (size 6 and 10)

IAC-R PROFIdrive

The Motion Control solution for applications with SiemensCNC Sinumerik 840 D(i) sl: IAC-R PROFIdrive. The high-response valve withintegrated digital axis controller and clock-synchronized PROFIBUS DP/V2 is asingle-axis controller optimized specifically for use under the Siemens controlSINUMERIK 840D(i) sl.

Valve type:

·       4WRPNH (size 6 and 10)

IAC-P axis controllers

IAC-P axis controllers offer the possibility ofclosed-loop pQ and pressure control and, through differential pressuremeasurement, a real closed-loop flow control, which is independent of loads orsystem pressure. The valve characteristic curve required for this is saved inthe form of a table in the on-board electronics. Up to 3 miniature pressuresensors can be integrated directly in the valve.

Valve types:

·       STW 0195 (size 6)

·       STW 0196 (size 10)

·       4WREQ (size 6 and 10)

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