SSETI Express SSETI Express Integration Logbook - Space.aau.dk

Project: SSETI Express
Doc : SSETI Ex press Phase D – Integration Logbook
Phase : Phase D
Date : Started 5 th October 2004
Ref : EXPRESS_D_ESA_Integration_Logbook.doc
positive battery side of the EBCR to the battery charge stud, running it through an ammeter
first, and the negative to the structure (ground).
Connect a voltmeter across the battery side of the EBCR and note the voltage. If it is lower
than 24.3V then it should be charged.
Turn the power supply on. The voltage will raise slightly and the current consumption should
be less than 600mA.
When the battery consumption is less than 50mA turn off the power and check the voltage. If
it is higher than 24.4V then the charging can be stopped.
Trickle charging can continue indefinitely. The battery can be considered “full” when the
consumption drops to 1 or 2mA.
Via a solar panel simulation
If the ABF is not already configured for solar panel simulation then power down the
spacecraft
The ABF should be configured such that:
- The loops from pins 17 to 24 (from pins 4 to 11 respectively) are disconnected
- The positive plug of the current source should be connected to pin 4 of the
ABF, and the negative to ground.
The spacecraft must be turned ON.
The large Keithly current source should be set to 700mA and 28 volts.
Turn the current source on. This should charge the battery while the spacecraft is running.
Once the battery voltage is at the desired level the solar panel simulation can be turned off.
The voltage can be measured across pin 2 of the EPS ABF and ground.
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