CDP UPO11-1AX User Manual page 9

2. Installation and setup
User Manual
5. Connect To Transformer
Transformer Transformer
Please do NOT connect transformer to output of the UPS. Otherwise, it will cause UPS internal
fault and force UPS to enter to fault mode. Please connect transformer to input of the UPS.
6. Connect to External Battery Pack
When connecting external battery packs, please be sure to connect polarity correctly. Connect
positive pole of battery pack to positive pole of external battery connector in UPS and negative
pole of battery pack to negative pole of external battery connector in UPS. Polarity misconnection
will cause UPS internal fault. It's recommended to add one breaker between positive pole of
battery pack and positive pole of external battery connector in UPS to prevent damage to battery
packs from internal fault.
The required specification of breaker: voltage ≧ 1.25 x battery voltage/set; current ≧ 50A
Please choose battery size and connected numbers according to backup time requirement and
UPS specifications. To extend battery lifecycle, it's recommended to use them in the temperature
range of 15ºC to 25ºC.
Step 1: External battery connection
Follow the right chart to make external battery connection.
Step 2: UPS input connection
Plug the UPS into a two-pole, three-wire, grounded receptacle only. Avoid
using extension cords.
 For 200/208/220/230/240VAC models: The power cord is supplied in the UPS package.
 For 100/110/115/120/127VAC models: The power cord is attached to the UPS. The input plug
is a NEMA 5-15P for 1K, 1KL, 1.5K and 1.5KL models, NEMA 5-20P for 2K and 2KL models.
For Low voltage models
Note: : Check if the site wiring fault indicator lights up in LCD panel. It will
be illuminated when the UPS is plugged into an improperly wired utility power outlet (Refer to
Troubleshooting section). Please also install a circuit breaker (40A) between the mains and AC
input in 3K model for safety operation.
Step 3: UPS output connection
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UPO11-1/1.5/2/3 AX Online UPS