7 Turn Pv Inverteron/Off; Start-Up Procedures; Pv Array Dc Voltage Checking; Ac Utility Voltage Checking - Delta RPI H3A Operation And Installation Manual

7 Turn PV inverter on/off
The internal temperature may exceed over 70°C while operating.
To avoid injury, do not touch the surface of the inverter whilst the unit is in
operation.
After installation, please ensure the AC, the DC and communication connection
are correct. When enough power is generated from the PV array, the device
will operate automatically and will initial 'self-test'. This self-test takes
approximately 2 minutes and will occur at first start-up of the day.
The display on the inverter includes 16×2 LCD display and LED indicator lights
to indicate inverter status. There are green and red colour LED indicator lights
to represent different inverter statuses.

7.1 Start-up Procedures

7.1.1 PV Array DC Voltage Checking

Firstly, uncover the PV arrays and expose them to full sunlight. Please note, the sunlight
must be intense enough to produce the required output voltage for the inverter to start up.
Measure the PV array open circuit DC voltage across the DC positive (+) and negative (-)
terminals.

7.1.2 AC Utility Voltage Checking

Using an AC voltmeter, measure the AC open circuit utility voltage between L1 (L) and
L2 (N) Ensure the voltage is at approximately the nominal value. The inverter operates
with a line-to-line voltage range around the nominal value.
See "11. Technical data" output section for the utility voltage operating range for your
inverter model.

7.1.3 Starting up the Inverter

Switch the DC and AC disconnection switches (breakers) to "ON".
Check the inverter LCD display. The start-up screen should appear in several seconds
(for the first time start up, select proper country and language, see "7.3.2 Country
Selection & 7.3.3 Language Selection").
WARNING：BURN HAZARD!
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Turn PV inverter on/off