The ADN 402 has been developed as a digital controller incorporating a valve amplifier for proportional valves with two magnets. The valve output stages function with fast de-excitation, with the result that the magnet current is adjusted to 0 in approx. 3-4ms.

The ADN 403 controller is a member of a modular-structure family of digital devices, which currently consists of eleven modules and is being continuously expanded. The ADN 403 is a high-speed cascade controller which permits implementation of up to three control loops. The controller has no output stage and can actuate valves equipped with on-board electronics. Analog input signals can be matched to the particular sensor by means of interchangeable sensor modules.

The ADN 404 has been developed as a digital controller with a valve amplifier for actuation of a servo-valve. The output stage is suitable in four ranges for +/– 20mA to 200mA valves.

The ADN 405 has been developed as a digital servo-amplifier for proportional valves featuring two magnets. The valve output stages function without fast de-excitation.

The ADN 406 has been developed as a digital servo-amplifier for proportional valves with one magnet. The valve output stages function with fast de-excitation, signifying that the magnet current can be set to 0 in approx. 3–4ms. Thanks to its high-speed output stage, the ADN 406 is extremely suitable for control tasks in the 0–30Hz frequency range. The module has therefore been equipped with a triple-controller cascade.

The ADN 407 has been developed as a digital controller for actuation of servo and proportional valves in which the valve output stage is mounted on the valve. The controller is of dual type for operation of, for example, two axes synchronously as a CNC control system. To make allowance for an environment possibly containing faults, the output signal is low impedance at ±20mA or can be jumper-selected to 12mA ±8mA.

The ADN 408 distribution unit has been specially developed for plant and system engineering, in order to eliminate the need to connect multiple cores to a single screw terminal. The module has the following outputs: 4 x 24V for supply of adjacent modules, and 4 x +/–15V or +/–10V. The +/–15V and +/–10V voltages are provided for supply of external sensors. They can be jumper-selected, and can each be loaded to +/–50mA.

The ADN 409 has been developed as a CNC control system for operation with a directional proportional valve. The assembly consists of two modules, of types MD1 and MD14. The MD1 module is the basic module (equivalent to the ADN 402). The MD14 is the CNC expansion module. The MD14 CNC module is also used in other device combinations, due to the modular structure of this system. The ADN 402 basic module has, in this particular case, already been described, and the following outline description therefore relates primarily to the add-on module.

The ADN 410 has been developed as a CNC control system for operation with a servo-valve. The assembly consists of two modules, of types MD3 and MD14. The MD3 is the basic module (equivalent to the ADN 404). The MD14 is the add-on CNC module. The MD14 CNC module is also used in other device combinations, due to the modular structure of this system. The ADN 404 basic module has, in this particular case, already been described, with the result that this outline description relates primarily to the add-on module.

The ADN 411 has been developed as a CNC control system for operation with a valve in which the electronics are mounted on the valve. The assembly consists of two modules, of types MD6 and MD14. The MD6 is the basic module (equivalent to ADN 407). The MD14 is the add-on CNC module. The MD14 CNC module is also used in other device combinations, due to the modular structure of this system.

The ADN 412 has been developed as a dual CNC control unit for operation with two correcting elements in which the electronics are mounted on the valves. The assembly consists of two modules, of types MD6 and MD15. MD6 is the basic module (equivalent to ADN 407). The MD15 is the add-on CNC module. The MD15 CNC module is also used in other device combinations, due to the modular structure of this system. The ADN 407 basic module has, in the present case, already been described, with the result that this outline description relates primarily to the add-on module.

The ADN 600 is a valve amplifier for actuation of proportional valves, primarily in mobile driven machines. The device is can be operated at supply voltages from 11 to 28V dc, changeover from 24V supplies to 12V operating voltage occurs automatically by means of the built-in supply-voltage monitor.

The ADN 601 is a valve amplifier for actuation of two proportional valves, primarily in mobile driven machines. The device can be operated at supply voltages from 11 to 28V dc, changeover from 24V supplies to 12V operating voltage occurs automatically by means of the built-in supply-voltage monitor.