perature synchronizes the relay with the alarm signal. In this way, for example, an emergency back up system can be started without any break in the energy supply.
4.6.4Battery Condition
Deep discharging of the lead-acid batteries leads to high losses in capacity and early aging. This is why battery condition is continuously controlled and supervised. With low voltage the inverter switches off. The LED 12 „L/H Batt.“ is lit and the LED 13 „OFF“ blinks. When the battery voltage gets up to 12.1V / 24.2V / 48.4V, the Inverter switches on automatically. One minute before the Inverter switch off due to low voltage it gives out an acoustic alarm signal. If the Auxiliary Contact has been programmed to detect the low voltage then it synchronizes the aux. contact with the alarm signal. In this way, for example, an emergency back up system can be started without any break in the energy supply.
The low voltage is set to 11.8V / 23.6V / 47.2V. These settings are standard for most batteries. These voltage levels are maintained by the built-in Battery-Management-System of XP-COMPACT by matching the load and the battery condition.
This setting is comparable with the levels of 10.8V/ 21.6V / 43.2, which are given for most batteries on nominal load.
All voltage levels (equalization absorption floating and disconnection voltage), can be programmed by mean of the optional remote control.
4.7The Battery charger
4.7.1Cycle of charge
The full automatic XP-COMPACT Battery Charger is adjusted at the factory so that most lead-acid and lead-gel batteries can be charged to the maximum. As soon as the minimum alternating volt- age for the AC IN set on the Turning Knob 23 is available at the input (LED 1 AC IN is lit), the transfer switch is activated and the battery charger is switched on automatically (LED 2 on optional RCC-01 is lit). The battery is fully automatically charged matching to the charge level, the pre- settled voltage levels and the charge current. Thanks to the built-in Float Charge System, the bat- teries can be left connected for unlimited time with the Battery Charger switched on.
During the charging phase the consuming appliances at the outlet AC OUT are continuously sup- plied with power (LED 8 AC OUT is lit).
The charger functions are shown in the following diagram:
| [V/cell] | [A] | | |
| 2.50 | | | |
| | 70 | | Equalization |
| | | |
| 2.3 | | Absorption |
| | |
| 60 | | |
| | Floating |
| | | |
| | | | Charging current (adjusted) |
| | | | Charging time |
| 2.1 | 40 | A |
| B | Egalization time |
| | |
| | | C | Absorption time |
| | | |
| 1.9 | 20 | D | Floating |
User manual | XP-COMPACT V2.0 E | 13 |
