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TWK-Elektronik - Safety encoders for AGVs
To navigate, AGV control systems require precise information about the current position, speed and steering angle of each vehicle in a fleet. This information is recorded by encoders. TWK has developed the TRK 38 singleturn magnetic encoder for such applications. With a diameter of 38 mm and a length of 38 mm, the sensor is suitable for installation in confined spaces. The encoder detects position and speed and meets the requirements of SIL 2 (IEC 61508) and PL d (EN 13849). The safety-related signals are transmitted to the higher-level controller or a safety relay via a certified Ethercat FSoE interface; the position resolution is 16 bits per revolution. The encoder is suitable for recording and transmitting important parameters in automated guided vehicles, both in the drivetrain and in the castors, as well as in mobile robots. Here, the encoders are used in the rotary axes of grippers and robot arms, for example.