8BVI0028HCDS.000-1 B&R Automation ACOPOSmulti SafeMOTION 2-Axis Inverter Module

The B&R Automation ACOPOSmulti Series Modular Drive System provides a universal solution for automation tasks in machine manufacturing.

Existing B&R safety components - X20 SafeIO modules, SafeLOGIC controllers and the SafeDESIGNER toolset in Automation Studio - have been enhanced with the addition of ACOPOSmulti SafeMOTION inverter modules with integrated safety technology. All B&R "Integrated Safety Technology" products are optimized to work together. This results in highly effective integrated safety technology application solutions with maximum cost efficacy. ACOPOSmulti SafeMOTION inverter modules have been manufactured for EnDat 2.2 and SinCos encoder systems.

Although there are many approaches to safe fieldbus systems, most of them are restricted by proprietary standards and sluggish response times. The B&R safety system, including its ACOPOSmotor SafeMOTION modules, takes a different approach by implementing openSAFETY across the board. This approach allows integrated safety functions such as Safely Limited Speed to be activated directly over the network instead of having to wire these types of safety-related signals to the drive.

Information is collected directly from its source via safe digital inputs and outputs before being distributed to the respective sensors and actuators - in this case, the drive with integrated safety functions - via a safe CPU, the SafeLOGIC controller. Connecting over a POWERLINK network makes it easy to achieve the best possible communication between the SafeLOGIC controller and the standard controller for non safety-related program engineering.

Cycle times of 800 µs are achieved on ACOPOSmulti SafeMOTION inverter modules while still satisfying SIL 3 requirements.

Because not all drives and axes in a production machine are safety-related, ACOPOSmulti inverter modules have been manufactured both with and without integrated safety functionality (SafeMOTION). This makes it possible to combine safe and non-safe axes in an application as needed.

In safety-related systems, potentially dangerous situations are simply not permitted, even if an error occurs. This is ensured by a two-channel hardware and firmware structure as well as by the system architecture. The failsafe principle is applied here. In the event of an error, torque and power are switched off on the drive.

If an EnDat 2.2 safety encoder or a SinCos encoder is installed in a system, then the SafeLOGIC controller can request the current speed and position of the motor encoder over the safe network and use that information as an input signal in the safe application. The signal achieves SIL 2 with an EnDat 2.2 safety encoder and max. SIL 3 with a SinCos encoder (depending on the encoder used) as defined in EN 61508.

The parameters for the SafeMOTION module are set in SafeDESIGNER and transferred to the SafeLOGIC controller together with the safety application. From there, they are transferred to the SafeMOTION module. The safe machine options have been manufactured so the parameters can be configured without using SafeDESIGNER. This makes it possible to modify the parameters of the SafeMOTION module from the standard application. The safe machine options are transferred from the standard application to the SafeLOGIC controller and stored there permanently.

EnDat 2.2 safety encoders or SinCos measuring instruments are used to safely determine and evaluate the position or speed of the motor. Because they determine the position redundantly, they satisfy SIL 3 requirements (depending on the encoder used).