This manual covers the installation, operation, maintenance, and warranty terms for DELIXI YJD/YJS series emergency power supplies used in building fire…
The document is a user manual for the DELIXI brand YJD and YJS series of lighting emergency power supplies. These devices are designed to provide backup AC power to critical loads such as fire signs and lighting when mains electricity fails due to emergencies like fires or accidents. The unit utilizes SPWM high-frequency inverter technology and features an LCD display with Chinese language support for monitoring status, voltage, current, and fault information. This manual is written in Chinese.
It is a backup power device installed in buildings that provides emergency power to fire signs, lighting, and other critical loads when the main power fails due to fire, accidents, or other emergencies.
The inverter starts, the contactor KM1 closes, and the battery's DC power is converted to AC power to supply the emergency output load.
The unit is designed to operate at altitudes below 2500 meters.