TI1550 12-24-UAV GPU
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3
Operating Procedures
Connect AC Power Cord To Unit
Ensure 120 or 240 Vac power cord is properly connected to an approved ac power supply. After approximately
5-8 seconds, unit’s LED status indicator will illuminate indicating power cell state of charge. Cooling fan will
operate. Ensure LED status indicator and cooling fan is operational prior to continuing.
3.13 – Charging Unit
Once you have the voltage selector switch set to match the power characteristics of your line cord, you can
plug the unit into a wall socket to charge the batteries. Until the unit is fully charged, the LED status will read
half or no charge. Plug the TI1550 12-24-UAV GPU into ac power to keep the cells charged whenever it is not
in use, even if it is at Full Charge. The unit will not overcharge or overheat.
If you received this manual with a new GPU.
When the Unit is fully charged the LED indicator should show a single steady green bar. The fan will also
come on at reduced speed. This is normal operation indicating the unit is in standby mode and is ready for
use.
If you own an older GPU and this is a replacement manual.
Under a full charge the LED indicator should show a single steady green bar or the entire LED will be blinking.
The fan will also exhibit ratcheting but will not come on. This is normal operation indicating the unit is in
standby mode and is ready for use.
If the GPU’s cells need to be replaced.
After 60 minutes of ac power input, the unit should be fully charged. If the “Push to Test” button is pressed
and the unit still indicates it is not fully charged then the cells should be replaced.
Figure 3.12.1 - Connecting TI1550 12-24-UAV GPU
to AC Power Supply
