Service manual

Always On UPS Systems Inc
54
19. MAIN CONTROL (3A PCB)
The Main Control PCB monitors and controls all the major components within the UPS system. Through the various monitoring
devices and PCB’s (mentioned later in this manual) it provides all the control signals, synchronizing signals and various conditions to
the UPS system and Operator interfaces.
Figure 19.1
Location of 3A PCB in the PCB Module