The following safety functions are integrated in the drive in accordance with IEC 61800-5-2 thanks to ACOPOSmulti inverter modules with SafeMC and by embedding this component in the B&R Safety system. Additionally, "Safe speed" is also provided for the SafeLOGIC. This means that safety functions can be combined in an application as needed.
Safe state
In safety-related systems, potentially dangerous situations are not permitted, even when an error occurs. This is ensured by the two-channel hardware and firmware structure as well as by the system architecture.
Bias current fail-safe is applied in this situation. In the event of error, torque and power are always switched off on the drive.
Safe speed
If an EnDat 2.2 safety encoder is installed in a system, then the SafeLOGIC can request the current speed of the motor encoder via the secure network and use that information as input signal in a safe application. With an EnDat 2.2 safety encoder, the signal fulfills SIL2 in accordance with EN 61508.
Encoders
EnDat 2.2 safety encoders are used to safely determine and evaluate the position and speed of the motor. They determine the position redundantly, thereby achieving SIL2. The following safety functions are only available when using EnDat 2.2. safety encoders!