Service manual

Always On UPS Systems
M0704_NX_Series_Service_Manual V2.17 2012-06-12 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