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 MD14 CNC module is equipped with an SSI interface for operation with an absolute position encoder, such as absolute shaft encoders or Temposonic, for example. An interface which permits incremental position measurement has also been included. Position measurement uses an A and a B channel for recognition of direction, with the result that correct detection of zero is possible using the index in conjunction with a limit switch.
The pulse generator is supplied with 24V from the ADN 410 module. The MD14 CNC module is equipped with its own signal processor, which has a processing speed of 40MIPS. Four further inputs and four outputs are also provided, signifying that the ADN 410 device combination has a total of 11 inputs and 5 outputs. A Profibus DP can be used optionally. The necessary GSD file is provided if a Profibus is used.
The ADN 410 device has been created by combining the MD1 (ADN 404) and the MD14. It has a width of 45mm and is suitable for installation on DIN 50022 rails.
The ADN 410 is equipped with two microprocessors, each of 40MIPS. The combination of digital and analog sensors is therefore possible in special cases, without overloading the microprocessors' processing speed.
The ADN 410 is equipped with the CAN bus, which permits communication of a large number of devices with one another. Augmentation of such a group of devices with the Profibus assures an interface to the majority of PLC control systems.
As already mentioned in the outline description of the ADN 404, the MD3 basic module is equipped with an output stage for a servo-valve. The output stage can be set in the graduations
of +/–20mA, +/–50mA, +/–100mA and
+/–200mA using a 0 Ohm resistor. Fine matching of valve current is performed using the ADN configurator.
An internal function generator, the frequency of which can be selected from 0.1 to 50Hz, is provided for controller optimization. The generator supplies sinusoidal, triangular and square waves. Amplitude and offset can be entered at ±10V.
All settings on the ADN 404 are effected using the ADN configurator via an RS232 interface linked to a PC or laptop computer.
The software for the ADN configurator is available on the Internet.