Service manual

Always On UPS Systems Inc
59
21. RECTIFIER CONTROL CIRCUIT (3C PCB)
This PCB acts as the interface between the Main Control PCB and the Rectifier Module.
It relays the control signals from the Main Control PCB to the Rectifier Driver (3S PCB) within the Rectifier Module.
It also monitors all aspects of the Rectifier Module. This information is then forwarded to the Main Control PCB as part of the control
loop.
Figure 21.1
Location of 3C PCB in the PCB Module