Eco-Mode; 5.6 Auto Restart; Superior Battery Management - GE Digital Energy LP 11 Operating Manual

5.5.5

ECO-mode

The Digital Energy™ LP UPS is equipped with the 'ECO-mode' feature. If the feature is enabled, the load is
operated on mains through the electronic bypass switch. If the mains is interrupted or out of limits the load is
automatically transferred to the inverter. Operating the load on mains improves the efficiency of the UPS with 5-
8% and saves on energy costs. As the unit produces less heat in ECO-mode, also the energy costs of an airco
installation will be reduced. We advise not to use the ECO-mode in case of an unstable mains supply.
NOTE: If units operate in parallel, the ECO-mode feature is not available. See also 4.5.5.3.
After enabling the ECO-mode (please refer to service menu 5.3.3) the standard menu changes to:
5.5.6 Auto restart
If this feature is enabled and the unit has shut down (e.g. due to overload) the UPS will start up automatically
when the normal situation is restored. The off-factory setting is: enabled.
If the auto restart feature is disabled the unit will not automatically restart when the normal situation is restored
but the display will show:
After 'Enter' the unit will restart. See also 5.3.3 'service menu'.
5.5.7

Superior battery management

- Load dependent battery-end voltage: The allowable final battery voltage depends on the discharge
current: the higher the current, the lower the 'end-of-discharge' battery voltage. This gives maximum
capacity without over discharging. Over discharging results in failure to recover normal capacity and in
shortened battery life.
- Equalize mode: When switched on for the first time the UPS will start boost-charging the batteries for
15 hours in order to equalize all battery voltages.
- Boost mode: If after a discharge the battery voltage is lower than 240Vdc (LP 3-11: 144Vdc), the UPS
will charge the batteries with a boost charge voltage of 295Vdc (LP 3-11: 177Vdc). This enables fast
recharging of the batteries. The programmed battery charging mode will change from boost charge into
float charge after boost charging twice.
- Temperature compensated battery charging: This feature reduces the battery charge voltage with
increasing temperature (-18mV/°C per 12V battery). As a result poor charging of the batteries under low
temperature conditions and overcharging of the batteries under high temperature conditions are prevented.
OPM_LPE_11X_3K0_10K_1GB_V041
LP 5-11
LOAD 37% IEM
AUTO RESTART OFF
PRESS ENTER
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GE DE LP 11 UPS: User manual 4.1 (GB)