TIAH64D MPU-24
15
3
Operating Procedures
Connect DC Power To Aircraft (High Power Demand)
High power demand is defined by a requirement of 10 amps or more. Connect to aircraft ground power
receptacle. DC bus power should come on and aircraft voltmeter should indicate 27.5 Vdc to 23.5 Vdc (23
Vdc minimum). If current demand is above 10 amps, converter output voltage will drop below 28.5 Vdc
and two or more LED status indicator bars will illuminate. At approximately 11 amps of current demand,
converter output voltage will be regulated at 24 Vdc output and the last (RED) LED status indicator bar will
illuminate.
NOTE
!
When all LED status indicator bars illuminate, both the converter and power
cells are supplying 24 Vdc power output for current demands above 10 amps.
3.11 – Regulated 28.5 Vdc Output Ground Power
Connecting DC Power Cable To Unit
Ensure DC power cable plug is fully seated into the MPU’s DC Battery Receptacle. Attaching a dc plug is
quick and easy. Line up the plug with the receptacle. Push forward while rotating the T-handle one full turn
clockwise. The unit is now ready to safely transfer power.
Figure 3.11.1 Attaching DC Power Cable to TIAH64D MPU-24