6
3.2
Start-Up Sequence
3.2.1 Commissioning
Check whether the DC input voltage is consistent with the nameplate label; in case of any inconsistency, please
do not apply the DC power supply to an inverter, in order not to cause any damage! Check whether the wiring
polarity of the DC input is correct; or else, the inverter cannot be normally started. Check whether the wiring of
AC input and output is correct and confirm that there is no short circuit phenomenon.
If there is no error in the above checks, respectively apply DC power supply and AC power supply. Turn-on the
startup switch to power-up the inverter. Firstly, all LEDs perform a lamp test for self-inspection. Then, the output
relay is closed to output AC power to the load.
3.2.2 Startup
Confirm whether DC input and AC output of the power supply is correctly and reliably connected. After the pressing
power switch to rightwards, the inverter performs self-inspection. Before steady output, the inverter power supply
checks the external environment and checks whether the inverter supply power itself is normal; if various status
parameters of the inverter power supply and the mains are normal, the inverter will steady operate in mains
status or inverter status (AC-dominated inverter is steady in mains output status and DC-dominated inverter is
steady in inverter output status). It takes about 5 seconds to complete the startup process.
3.2.3 Shutdown
After the pressing power switch to leftwards, the inverter LED indicator light and the inverter power supplies are
turned off.
3.2.4 Mute
In the case of the inverter power supply faults, the system will send audible and visual alarm which can be set
through LCD, to the mute audible sound of a particular alarm, select Turn Off in the sound control option.
The operator can directly press
ENT (temporary)
button to inactivate and activate an audible alarm. For the
same alarm, the muted alarm will not be automatically turned on; if there is another alarm, no matter whether
the last alarm is under mute status or not, the system will automatically turn on the audible alarm.
3.3 Understanding the Alarms
3.3.1 LED lights, LCD screen, and Buttons
Figure 8 - LED lights, LCD Screen and Button
