Operation Manual -
PoWerMaster®
2400 – 30 - 90 kVA
For GPUs with 28 VDC Active Rectifier Unit
Document no. 578.650BB
Page 81 of 91
12.3 Interlock
To ensure personnel health and safety, the converter is equipped with an interlock system. The system
ensures that the output only stays engaged as long as the plug is inserted into the aircraft receptacle. I.e.
as long as 28 VDC is present at terminal X2:F.
12.3.1 Standard wiring diagram
For service, maintenance and test purposes, the interlock system can be by-passed via the display setup.
To ensure personnel health and safety, the converter automatically returns into normal mode once it
receives a 28 VDC voltage at terminal F2 e.g. when the plug is connected to an aircraft.
The 28 VDC output can be operated remotely via the I/O terminals related to Output 2. Please refer to
section 4.9
*This option requires a “split-F” connector, which is typically a special order from most aircraft
manufactures.
Note!
The 90% switch is as standard by-passed by connecting te & 3 (X2)
