Controls Power Supply (Cps) - ABB Zenith ZTSCT Series Operation And Maintenance Manual

Controls Power Supply (CPS)

Closed Transition
Each Entelli-Switch 250 microprocessor based ATS
controller requires a 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
30
Primary CPS
Voltage Assembly
at 50/60 Hz Part No.
120V 50P-1224
208-220V 50P-1225
230-240V 50P-1226
277V 50P-1227
380-400V 50P-1228
416-440V 50P-1229
460-480V 50P-1230
575-600V 50P-1231
ZTSCT / ZBTSCT Operation & Maintenance Manual
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.
CPS
Board
No.
50P-1200
50P-1201
50P-1202
50P-1203
50P-1204
50P-1205
50P-1206
50P-1207
Figure 17
ABB Zenith