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User manual COMPACT V2.0 E 14
4.5 The Inverter
An Inverter is built in the COMPACT, which generates a sinusoidal alternating voltage of a very
high quality. With this Inverter any alternating voltage consuming device 230Vac up to the nominal
power of your COMPACT can be operated. Thanks to the generous dimensioning of the
COMPACT, you can operate appliances requiring higher power than the nominal power of the
COMPACT for a short time. The COMPACT provide up to 3-times the nominal power to start
motors.
The Inverter mode is displayed through LED 9 (Inverter). If the Inverter Mode is disabled (see
chap. 5.5) LED 9 will blink. If the LED 9 is lit, the Inverter is in operation and you have 230Vac at
output AC OUT. The actual power of the connected consumer device is displayed on the power
monitor 25 and on the remote Control.
4.5.1 Charge detection system „Standby“
In order to avoid unnecessary discharge of the battery, the inverter switches OFF automatically if
no consuming device is connected and switches ON automatically again if a consuming device is
connected. The LED 8 blinks if the inverter is in Standby-Mode. The switching-on/starting level can
be adjusted with the turning knob 24 „STANDBY. Adjusting the switching-on level is as follows:
Switch off all consuming devices; turn the Turning Knob 24 to the right until the LED 8 is blinking,
switch on the smallest consuming device (i.e. Mobile phone charger); turn the Turning Knob slowly
to the left until LED 8 is lit.
If the Standby- Mode is not wanted, turn the Turning Knob 24 to the left, to the OFF position.
4.5.2 Overload
If the Inverter is too long or too heavily overloaded , it switches off. The LED 11 „Overload“ is lit
and LED 13 „OFF“ blinks. After ca. 10 seconds the Inverter switches on automatically. If the
Inverter is overloaded four times one after another in a short time, then it no longer switches on
automatically. The LED 13 remains lit. Press the push button 19 „ON/OFF“ in order to switch on
the Inverter.
4.5.3 Overheating (Over Temp)
If the Inverter has been overloaded for a long time or it has been working in a to high surrounding
temperatures, it will switch off. The LED 10 „Over Temp.“ is lit and the LED 13 „OFF“ blinks. After
cooling down, the inverter switches back on automatically. One minute before the inverter switches
off for to high temperature it gives out an acoustic alarm signal. If the Auxiliary Contact has been
programmed to detect the high temperature then it 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.
4.5.4 Battery Condition
Deep discharging of the lead-acid batteries leads to high losses in capacity and early aging. That 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 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 can be programmed. See the instructions under the section on Programming.
Check your battery supplier as to which voltage values are necessary to be set.