6.2 Powering On the System
Prerequisites
Before turning on the AC switch between the SUN2000 and the power grid, check that the AC
voltage on the power grid side of the AC switch is within the specified range.
If the AC is on and the battery is off, the SUN2000 will report a Battery Abnormal alarm.
If the DC switch is not turned on within 1 minute after the AC is powered on, the
SUN2000 will report a Device Abnormal alarm and will start normally only after the DC
switch is turned on.
If there is a power grid outage, the SUN2000 will assume a power-off state regardless of
whether sunlight is sufficient or a battery is configured. The LEDs will turn off.
Procedure
Step 1 If a battery connects to the battery port of the SUN2000, turn off the battery Auxiliary Power
ON/OFF switch, and then turn off the battery Circuit Breaker switch.
Step 2 Turn on the AC switch between the SUN2000 and the power grid.
Step 3 Turn on the DC switch at the bottom of the SUN2000.
Step 4 Perform quick setting and set the SUN2000 parameters on the FusionHome app. For details,
see 7 Operations on the Local FusionHome App.
Step 5 (Optional) Measure the temperatures at DC terminals and battery terminals using a point-test
thermometer.
Under normal operation conditions of the SUN2000, the temperature rise at DC terminals
should remain below 30°C at all times.
Step 6 Observe the LEDs to check the SUN2000 operating status.
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