BS EN 61800-7-204:2016

What is BS EN 61800-7-204 – Electrical power drive systems about ?

BS EN 61800-7-204 is a part of the BS EN 61800 series of international standards that discusses the interface and use of profiles for power drive systems. A Power Drive Unit is used to convert electrical or hydraulic power into mechanical motion (often rotary) and drive a mechanical actuation system. 

BS EN 61800-7-204 specifies profile type 4 for power drive systems (PDS). Profile type 4 can be mapped onto different communication network technologies. 

Note: The functions specified in this part of IEC 61800 are not intended to ensure functional safety. This requires additional measures according to the relevant standards, agreements and laws.

Who is BS EN 61800-7-204 – Electrical power drive systems for ?

BS EN 61800-7-204 on power drive systems is applicable to: 

• Manufacturer of frequency drive 
• Manufacturer of the control device 
• Electrical engineer 
• Quality testing personnel 

Why should you use BS EN 61800-7-204 – Electrical power drive systems ?

The use of adjustable speed drives on motor-driven systems— “Power Drive Systems” (PDS)— offers significant energy savings potential in commercial and industrial applications. SERCOS is designed to provide hard real-time, high-performance communications between industrial motion controls and digital servo drives. 

BS EN 61800-7-204 provides you with a SERCOS interface in which the data exchange between the master and the slaves and vice versa, consists of the transmission of operation data and procedure commands. All operation data and procedure commands are assigned to an IDN (identification number). 

BS EN 61800-7-204 provides you with the type and length of the data exchange that depends on the condition of the SERCOS interface and on the mode of operation of the drives which are connected to the slaves, the most important operation modes are: 

• Position control 
• Velocity control 
• Torque control

BS EN 61800-7-204 also provides a synchronization that helps you assure movements coordination without deviations on a machine with several drives from different manufacturers with one control (contouring control), technical requirements are fulfilled to achieve synchronism when: 

• Processing the command values 
• Sampling the feedback values 
• Synchronizing different cycle times and fine interpolators in the drives. 

BS EN 61800-7-204 exemplifies the required interfaces and profile type 4 specifications that help you achieve precision in terms of power drive systems. 

What’s changed since the last update ?

BS EN 61800-7-204:2016 supersedes BS EN 61800-7-204:2008, which is withdrawn on 12 October 2018. It includes: 

• Update of drive parameters and their specification