Control Signal Converters are necessary to match the control signal generated by a controller with the signal required by the object of control.   For example,  a PLC may have a 0-10VDC output for controlling a valve, but the valve requires a  -10VDC  to +10VDC to operate.  A signal converter processes the output signal (0-10VDC) into a signal the object can use (-10VDC to 10VDC).  The signal converter also provides isolation between the controller and the object of control.  This isolation reduces electrical noise and provides electrical separation between components.

The power supply for these units must be ungrounded; and on isolated units, must have separate power supplies. 

The SDCNV_ _ _ _ _ line of signal converters provides electrical isolation and the ability to choose different input and output signals using a field configurable unit.  Unit can also provide isolation between the contoller and the control object by passing through the signal.

The SDCNV_ _ _ _ _ accepts the following input signals: 0 to 1 VDC, 0 to 5 VDC, 0 to 10 VDC, -10 to +10 VDC, -5 to +5 VDC, 4 to 20mA, and 0 to 20mA.  The converter can be configured to change input into any of the other ranges listed above.