GE ZBTSD manual Controls Power Supply CPS, Standard and Delay Transition

Standard and Delay Transition

Each Entelli-Switch 250 microprocessor based ATS controller requires Controls Power Supply (CPS) to apply line voltage to the ATS operator via SCRs. Also required is power for the Entelli-Switch 250 printed circuit board and an application of sensing voltage proportional to line

voltage. This is accomplished by the Controls Power Supply (CPS). This method of switching operator voltage and applying power and sensing voltage to the printed circuit board isolates the MX250 from the line voltage, further protecting the controller from harmful line transients.