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Digital Energy™ GT Series

Fig. 2.5 Stand-by mode

Though the batteries (the internal energy reserve) were fully charged when the UPS left the factory, they might have lost some energy during transport and/or storage. It is recommended to allow the UPS to recharge the batteries for at least 6 hours. This way you ensure that the UPS can provide sufficient runtime in case of a utility power failure.

2.4.6Checking the site wiring fault LED

When the UPS is still in ‘STAND-BY’ mode, check the site-wiring fault LED. If the UPS is plugged into an improperly wired AC utility power outlet, this LED flashes as shown in Fig 2.6.

Fig. 2.6 Site wiring faul

The detection of site wiring faults includes a missing ground, phase-neutral polarity reversal and an overloaded neutral circuit. If the LED flashes, unplug the UPS and have the site wiring checked by a qualified electrician.

This step completes the installation procedure.

OPM_GTU_TWR_1K0_3K0_XUS_V015

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DE GT Series: User manual rev date 8-11- 04