Setting the Limits of an Analogue Encoder
16th February 2022
An encoder with an analog output provides a varying signal such as 0-10V or 4-20mA, which is representative of the position of the shaft.As with all absolute encoders, the measurement range is finite. Therefore, a start point and end point must be set. For this example, we will assume a single turn 0-360° encoder that has a 4-20mA output. To re-scale the measuring range of the encoder, the minimum and maximum positions must be re-programmed. The minimum (also referred to as “zero”) is the position that it will output 4mA, and the maximum is where it will output 20mA. To program these preset