The analog value transmitter is used for manual setting of the manipulated variable, e.g. for mixing flaps, valve positions, temperature values, etc. The module can be controlled by two operating modes, which are set using the two-stage switch (HAND, AUTO) on the front. The switch position is reported back via the external control contact terminals B1 and B2. Switch position HAND: The manipulated variable can be set using the potentiometer on the front. The output signal 0 to 20 mA is available at terminal Y. The current flow at input YR is not interrupted. Switch position AUTO: The input current (YR) is transferred to the manipulated variable output Y with a tolerance of ± 5 % (scale end value)., Setpoint transmitter, manual operating level with feedback, LED brightness proportional to the manipulated variable