Manual Part 7
PSU AC
1 Product Overview
The PSU AC converts incoming AC power to DC. The PSU AC rectifies the
incoming AC power and delivers 1200 W power over the whole o utput range
from 22 – 29 V D C.
1.1 Main Functions
The PSU AC does the following:
• Communicates with the Distribution Switch Unit (DXU)
• Adjusts voltage
• Performs sharing between parallel units
• Indicates alarms
2 Dimensions
The phy sical characteristics of the PSU AC are shown in th e table below.
Table 1 PSU AC D imensions
Height Width Depth Weight
262 mm 61 mm 225 mm 3.3 kg
3 Power Con sumption and H eat Genereation
Power consumption and heat generation are shown in the table below.
Table 2 Power Consumption and He at Generation
Max. Power Consumption Max. Heat Generation
1446 W 246 W
4 Function Description
The PSU AC consists of the following main units:
• Input filter [ElectroMagnetic Compatibility (EMC) filter]
• Bridge
• Boost converter
• DC/DC converte r
3 (6)
EN/LZT 720 0249 Uen R2A