MultiPlus-II 2x120V Low battery pre-alarm The battery voltage is getting low. The battery is almost fully exhausted. The "low battery"LED is blinking. Low battery alarm The inverter has switched off due to low battery voltage. The "low battery" LED is blinking. Temperature pre-alarm The internal temperature is reaching a critical level. The "temperature" LED is blinking. Temperature alarm The inverter has switched off due it's internal temperature being too high. The "temperature" LED is on. Overload pre-alarm and low battery pre-alarm The battery is nearly exhausted and the nominal output of the inverter is exceeded.
The "overload" and "low battery" LEDs are both blinking alternately, Ripple pre-alarm The ripple voltage on the battery terminals is too high. The "overload" and "low battery" LEDs are both blinking simultaneously. Page 7 Operation