Manual/automatic switch

Manual/automatic switch .
This module mustallow closing the control loop, without oscillations, after a suitable setting of the system. It must be composed of a summing point to which the signal coming from a potentiometer (manual mode) and the signal coming from the controller (automatic mode), inserted through switch, will be connected Technical features:
•Power supply: +15 V ; 0 V ; -15 V
•Signal voltage range: -10V, ..., +10V
It must be mounted on an insulated didactic module; it must show a schematic diagram and 2 mm terminals for the electrical connection; one manual mode potentiometer, one manual mode/automatic mode switch, one output summing point. It must include also a bus for the supply that allows the connection between the panels.