Huawei UPS2000-A Series User Manual page 98

UPS2000-A-(6 kVA-10 kVA)
User Manual
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Starting the Parallel System in Normal Mode
Step 1 (This step is required only for the UPS with long backup time.) If the battery circuit has a
circuit breaker, switch on the external battery circuit breaker. If the battery circuit does not
have a circuit breaker, connect battery cables.
Step 2 Switch off the upstream AC input circuit breakers for each UPS, AC input circuit breakers at
the rear of each UPS, the general AC input circuit breaker of the parallel system, and the AC
output circuit breaker of each UPS.
Step 3 After the LCD screen lights up for 1s, the initialization screen is displayed. The parallel
system supplies no power. After the initialization progress is complete, the default screen is
displayed, as shown in
Issue 05 (2019-12-19)
The parameter values in the screenshots are for reference only. Set the parameters as
required.
Before you start the parallel system, ensure that the output circuit breaker of each UPS is
ON.
Check that parallel parameters have been synchronized.
In a 4+0 parallel system, the four parallel cables must be of the same length (1 meter or
longer), and be connected together at the remote end.
Before starting a parallel system, ensure that the AC output circuit breaker of the parallel
system is OFF, and do not start loads.
To prevent triggering overload protection, start the loads with higher power and then loads
with lower power.
Set the voltage level and frequency based on the rated voltage and frequency. In the case
of single-phase output, set the voltage level to 208 V, 220 V (default), 230 V, or 240 V.
Battery parameters are configurable for the UPS with long backup time in non-battery
mode or non-battery ECO mode.
Set the number of batteries based on the actual battery capacity. The value is 16 for the
UPS standard version with standard backup time and cannot be changed. The value is 20
for the UPS professional version with standard backup time. The default value is 16 for the
UPS with long backup time, and the value can range from 16 to 20.
Set the battery capacity to the total capacity of all batteries actually connected. The value
is 7 Ah for the 6 kVA UPS with standard backup time and cannot be changed. The value is
9 Ah for the 10 kVA UPS with standard backup time and cannot be changed. The default
value is 40 Ah for the 6 kVA UPS with long backup time. The default value is 65 Ah for
the 10 kVA UPS with long backup time, and the value can range from 7 Ah to 999 Ah.
To set parameters, tap
confirm the setting.
Figure
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on the parameter settings screen, press ▲ or ▼, and press
5-20.
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