15
Figure 13. Input, Output and Ground connections to the UPS (shown with strain relief)
Warning:
Make sure the UPS is not turned on before installation. The UPS should not be turned on during wiring con-
nection.
Do not try to modify the standard model to the long-run model. Particularly, do not try to connect the standard
battery cabinet to a non-standard external battery. The battery type and voltage may be different. If you con-
nect them together, it may lead to increased risk of electric shock or fire!
Warning:
For standard battery pack, there is one DC breaker to disconnect the battery pack and the UPS. But for other
external battery pack, make sure a DC breaker or other protection device between UPS and external battery
pack is installed. If not, please install it carefully. Switch off the battery breaker before installation.
NOTE:
Set the battery pack breaker in “OFF” position and then install the battery pack.
Pay attention to the rated battery voltage marked on the rear panel. If you want to change the numbers of the
battery pack, please make sure you modify the setting simultaneously. The connection with wrong battery
voltage may cause permanent damage of the UPS. Make sure the voltage of the battery pack is correct.
Pay attention to the polarity marking on external battery terminal block, and make sure the correct battery
polarity is connected. Wrong connection may cause permanent damage of the UPS.