Huawei UPS2000-G-3KRTL-V2 User Manual page 90

UPS2000-G-(3 kVA-20 kVA)-V2
User Manual (Two Live Wires)
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Starting the Parallel System in Normal Mode
Step 1 Close the external battery circuit breakers (if there are), or connect battery cables.
Step 2 Close the following circuit breakers in sequence: UPS AC input circuit breakers K1 and K2,
general AC input circuit breaker K, and UPS AC output circuit breakers Q1 and Q2.
The initialization screen is displayed. The parallel system supplies no power.
Step 3 Perform the following operations on each UPS:
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Issue 07 (2019-12-19)
If a parallel system shares a battery string, set the same battery string capacity and charge
current for each UPS.
Before you start the parallel system, ensure that UPS output circuit breakers are both 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 connect to a remote junction box.
In the parallel system that uses the TN-C power distribution system, install four magnetic
rings on the PE cable on each UPS, bind the four magnetic rings together using binding
tape, and secure them in the nearest place.
Before starting a parallel system, ensure that all circuit breakers on the output side are OFF,
and do not start loads.
To prevent triggering overload protection, start the loads with higher power and then loads
with lower power.
 Perform Step 2 when there are two mains inputs. In the case of one mains input, you need only to
close the UPS mains input circuit breakers and general mains input circuit breaker.
 If a PDU is configured, close the following circuit breakers: general mains input circuit breaker,
general bypass input circuit breaker, mains input circuit breakers for all UPSs on the PDU, bypass
input circuit breakers, and output circuit breakers for all UPSs on the PDU. The initiation screen is
displayed.
Initial startup
a. Setting parameters on the Settings wizard screen.
When the initialization is complete, the Settings wizard screen is displayed. Set the
language, system parameters, and battery parameters, and press
screen is displayed.
b. Settings for transferring from single mode (preset) to parallel mode.
On the standby screen, press
Parameters > Parallel > Single/Parallel to transfer from single mode to parallel
mode. Press ESC to return to the standby screen.
Non-initial startup
When the initialization is complete, the standby screen is displayed. On the standby
screen, press to enter the main menu. Choose Main Menu > Settings > System
Parameters > Output to view output settings: if the system uses three-phase input
single-phase output or single-phase input single-phase output, Output mode is set to
Single-phase; if the system uses three-phase input three-phase output, Output mode is
Copyright © Huawei Technologies Co., Ltd.
. Choose Main Menu > Settings > System
5 Operations
. The standby
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