Reference Manual

PSU DC Power Supply Unit
EN/LZT 720 0248 R1B 5 (6)
4.3 Output filter (EMC filter)
The ouput filter filters the output voltage to prevent unwanted signals from
being radiated from the PSU.
4.4 Control and supervision circuits
The control and supervision circuits support:
• Load sharing between parallel units
• Remote on/off
• Alarms
The output voltage can be adjusted between 22 V to 29 V DC. The control and
supervision is achieved through an optical signal interface connector on the
front of the PSU.
5 Interface
5.1 Signal and Power Interface
Input Data
Table 3 Input data
Nominal input voltage
(-48) – (-60) V DC
Permitted Variation input voltage
(-39) – (-72) V DC
Input current
Inrush current
< 36 A
< 200 A
Efficiency
> 85%
Non-destructive voltage
0 – (-75) V DC