TWK
Safety encoder for AGVs
The TRK 38 from TWK is a compact and safety-oriented encoder for automated guided vehicles (AGVs) and mobile robots that helps them to navigate in space and move to target positions.
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 rotary encoders, which need to be as compact as possible because the installation space in the AGV drive train is limited. TWK has developed the TRK38 singleturn magnetic encoder for such applications. With a diameter of just 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), meaning it can be used in safety-related applications. 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 drive train and in the castors, as well as in mobile robots, which differ from automated guided vehicles in that they have an additional degree of freedom. Here, the rotary encoders are used in the rotary axes of grippers and robot arms, for example.
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