2. Use insulated tools when installing the equipment. 3. Only engineers certified by Huawei or its agent are allowed to install, commission, and maintain the UPS. Otherwise, personal injury or equipment damage may occur, and the resulting UPS faults are beyond the warranty scope of Huawei.
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1. Move the UPS to the installation position and open the front door of the power cabinet. 2. Install the connecting plates between the bypass cabinet and its adjacent power cabinet based on the following sequence: bottom, top, and middle connecting plates. 3.
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4. Install anchor baffle plates. 5. Remove the front cover of the power distribution subrack from the bypass cabinet, and remove the rear covers from the bypass cabinet and its adjacent power cabinet. 7. (Optional) Remove the extension rod of the 6.
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8. Cut off the cable ties binding holes of copper bars 9. Remove the filler panel from the numbered 23, 24, 25, 26, and 30. Install the soft power cabinet, and install the soft copper bars in the bypass cabinet and its adjacent copper bar numbered 52.
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A UPS in standard configuration has only one switch cable (maintenance bypass switch). A UPS in full configuration has three switch cables (mains input switch, maintenance bypass switch, and bypass input switch). The following figure shows how to connect cables to a parallel system in full configuration.
Installing Cables 1. This document describes cable routing by removing the top cover when there are two mains inputs. 2. In the case of single mains, you do not need to connect bypass input power cables and remove short-circuit copper bars. UPS Cable Connection Reference •...
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Installing Cables Scenario 1: Routing Cables from the Top 1. Remove the covers from the top of the 2. Remove the copper bar between the cabinet. mains and bypass inputs. (Skip this step if there is only one mains input.) 3.
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5. Connect output power cables. 6. Connect bypass input power cables. 7. Connect battery cables. The wire routed from the middle point of positive and negative battery strings is the neutral wire. The following figure shows a neutral wire routed from the middle of two battery strings consisting of 40 batteries, half positive and half negative.
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Scenario 2: Routing Cables from the Bottom 1. Remove the cable covers from the bottom of the cabinet, drill holes in the covers, attach grommet strips to the hole edges to protect the cables, and reinstall the cable covers. 2. (Skip this step if the mains input and bypass input share a power source.) Remove the copper bars between the mains input and bypass input.
Verifying the Installation 1. Check that there is no foreign matter in the cabinet. (1) Top of the cabinet (2) Wiring terminal blocks (3) Switches (4) Bottom of the cabinet (5) Rear of the modules 2. After verifying the installation, reinstall all 4.
Close the upstream bypass and mains input switches. (Full configuration model) Close the UPS bypass input switch, output switch, and mains input switch. After the UPS is powered on, initialization begins. The MDU displays the Huawei logo and an initialization progress bar. Initial Startup 1.
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2. Set the language, time, date, network parameters, and system parameters on the Settings Wizard screen. 3. After you perform the settings, the Bypass mode and No battery alarms are reported by the MDU and do not need to be cleared. If there is any other alarm, you need to rectify the fault.
Powering On Loads 1. After the inverter starts, the UPS works in normal mode. The Bypass mode alarm disappears from the MDU. 2. After confirming that the battery strings are properly connected, turn on the battery string input circuit breaker. If there are multiple battery strings, turn on the circuit breaker for each battery string and then turn on the general circuit breaker between battery strings and the UPS.
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Huawei Digital Power Technologies Co., Ltd. Huawei Digital Power Antuoshan Headquarters Futian, Shenzhen 518043 People’s Republic of China www.huawei.com...