30
29
5.4.10 Grounding connection
SPA must be grounded by cable, the grounding point is showed as follow, and the
minimum grounding cable wire diameter is 10.0mm .
Chart 5.37
AC
coupled
Commissioning 6
6.1 Commissioning of SPA
Electrify SPA after all installation of Part5 be finished, here are the steps:
Ø
Connect AC
Ø
Connect battery
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Turn on AC first
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Then turn on battery
If Grid and battery are available, system would work on the “normal” mode. When the
SPA on the normal mode, the screen showing “normal”, LED is green, if SPA not enter
normal mode successful,especially the LCD is red, you need to check below:
Ø
Make sure all the connection is correct.
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All the external switches are on.
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Inverter built -in switch is on.
Ø
Make sure the lithium battery is on.
You can refer to Part 6.4.4 for work mode setting, then configure monitor, finish
commissioning.
6.2 Operation modes
6.2.1 Normal mode
Normal mode is working state which including online mode and backup mode.
User can set an appropriate priority mode according to request when SPA working on the
online mode. If customer uses the LCD and key settings, you can only set one period, but
if you use website settings, you can set up to three periods of the priority mode. ( Refer
to 6.4.4)
Load first:
Load first is the default mode.
Ø
With inverter in the SPA system, energy from inverter optimize load, then charge
battery, exceed power export to the grid.
Ø
Without inverter or the energy from inverter is weak, the battery will discharge for
load firstly and the grid will supply the power when the battery power is not
enough.
Battery First:
When SPA series working under this mode, battery would be charged first,
it's suitable working on the period when the electric charge is low. User need to set the
mode ON and OFF time, and the end time of battery SOC. Users can set power rate which
less than the battery maximum output power.
Ø
With inverter in the SPA system, energy from inverter charge battery, then load and
the grid will supply the power when the inverter power is not enough.
Ø
Without inverter or the energy from inverter is weak, the grid will charge the
battery and load.
Grid first:
When SPA series working under Grid-first mode, the battery energy would
feed to Grid first. User can choose the period when electric charge is high. User need to
set the mode ON and OFF time, and the end time of battery SOC. User can set power rate
which less than the battery maximum output power.
Ÿ
Online mode
2
