EN Industry information Electric actuators and valve gearboxes for automating valves on vessels

2 | The actuator specialist AUMA is one of the leading manufacturers of electric actuators, actuator controls and valve gearboxes for the automation of industrial valves worldwide. AUMA has more than 45 years of experience in research & development and manufacture of electric multi-turn and part-turn actuators as well as linear thrust units. AUMA manufactures in two German factories. Three Service Centers, respectively in Cologne, Magdeburg and Munich, have been set up to offer service performance. 1,700 employees belong to the AUMA group worldwide. AUMA automates valves AUMA actuators have to...

| 3 10.09.10 Solutions for a world in motion This brochure will provide a good functional overview of AUMA actuators and their automation applications on vessels. It can be used as the basis to determine the suitability of a device for your chosen application. For detailed product selection, please refer to the separate data sheets. On request, AUMA engineers specialised in vessel applications will assist you on site in defining the correct device for the application. The latest information on the AUMA products can be found on the Internet at www.auma.com. All documents, including dimensional...

4 | The truth can only be found on the playing fi eld This phrase often heard in interviews after soccer matches can easily be applied to the situation of vessels. The promises of the component manufacturer will have to prove their truth when integrated into these independent systems. Many projects have proven the suitability and capability of AUMA actuators. AUMA actuators have been used on ships for more than 15 years. Challenging projects were implemented such as the U 212 A and U 214 submarines or several luxury yachts belonging to very demanding owners. References (extract) Yacht Country...

| 5 8 m Service conditions Reliable operation over many years requiring minimum maintenance is one of the major requirements in any technical specification made by AUMA. The devices can withstand most unfavourable application conditions which is one of their significant characteristics. This is considered by the AUMA designers when conceiving the devices. Special care is taken when selecting materials and processing procedures to fulfil the high demands of naval and offshore applications. Ambient temperatures AUMA actuators are suitable for operation without restrictions at ambient temperatures...

6 | [1] Basics - Main functions of actuators Open-close and modulating duty Valves are subdivided in shut-off valves and modulating valves. ¡ In general, shut-off valves are either open or closed. They are rarely operated; when operated, they cover the complete stroke. The time difference between two travels can amount to minutes or even to months. They are controlled by means of the binary signals OPEN and CLOSE. This type of duty is classified as open-close duty. ¡ Modulating valves are used to set a default variable being constantly verified and adjusted at short intervals. Control takes place...

| 7 [2] [2] Setpoint control - integral positioner The actuator receives a position setpoint from the host DCS, e.g. as 4 – 20 mA signal. The optional integral positioner compares this value with the current valve position and controls the actuator motor as required until the offset value comes close to zero. The valve position is usually transmitted to the DCS. Switching off in the end positions Irrespective of whether the actuator is operated in open-close or modulating duty, the device must automatically switch off when reaching an end position. Two different switch-off mechanisms are available...

8 | Plug & play - installation, commissioning, operation In the shipbuilding industry, time schedules are very tight. Problems occurring during device installation or commissioning are time consuming and therefore costly. Standardised interfaces, plug-in electrical connections, an intuitive operational concept and clear and complete documentation ensure that you will not experience any of these problems with AUMA devices. Upon delivery to the shipyard, the actuators are generally mounted to the valve and presetting has been performed before leaving the factory. Subsequent modifications of settings...

| 9 Always complete with handwheel AUMA actuators are always equipped with a handwheel for emergency operation in case of power failure. During installation and commissioning, the whole travel from OPEN to CLOSED can be performed via handwheel, e.g. for end stop setting. Plug-in electrical connection Electrical connections can be prepared in the shipyard, using the wiring diagrams, as to ensure that upon delivery, the actuators are quickly connected to both power supply and data cables - there is no faster way. Further advantage of plug-in connections: The wiring is maintained, even if the connection...

10 | Communication - tailor-made interfaces Although, the mechanical interfaces between actuators and valves have been standardised for many decades and are stable, the fast-paced development in electronics and software continuously offers new options for connecting interfaces to the DCS. AUMA is always at the forefront of these trends and developments and offers interfaces to communication systems which are already well accepted on the market. Parallel signal transmission The parallel interface is equipped with the following inputs and outputs. ¡ Two binary inputs for the OPEN - CLOSE control...

| 11 Serial communication Since the implementation of fieldbus technology, AUMA has been focussing on open fieldbus protocols. This is the only way for the plant operator to maintain flexibility when choosing the most suitable field devices or performing necessary extensions or upgrades. Actuators of the type ranges SGC and SVC are available with the following fieldbus interfaces: Profibus DP Due to the simple and robust data transmission hardware (RS-485) and the fast data exchange, Profibus DP is the ideal choice for automation tasks within the shipbuilding industry. Modbus RTU Modbus is a...