It detects when mains voltage is out of limits, opens the mains contactor, starts the generator, and closes the genset contactor to restore power to your load. Intelligent Monitoring:

: Monitors battery voltage and charging current, along with cumulative working hours for maintenance scheduling.

Typically a compact or specific configuration variant, though most core manuals group these under the general AC-01 technical guidelines. Programming and Maintenance

Total working hours, service timers for scheduled maintenance, battery voltage, and charging current. Operation Counters: