UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
2 Overview
Issue 02 (2017-02-25)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
36
Pin
Description
8
N/A
If cables are prepared onsite, follow the three methods below:
Connect pin 1 and pin 2. Pin 1 connects to RS485+ and pin 2 connects to RS485–.
Connect pin 4 and pin 5. Pin 4 connects to RS485+ and pin 5 connects to RS485–.
Connect pins 1, 2, 4, and 5. Twist cables to pin 1 and pin 4 into one cable and then connect it to
RS485+. Twist cables to pin 2 and pin 5 into one cable and then connect it to RS485–.
2.4 Typical Configurations
Conceptual diagrams in this section are used as examples when no battery string is shared.
describes typical UPS configurations.
Table 2-9
Typical configurations
Configuration
Application Scenario
Single UPS
A single UPS5000-E is applicable to scenarios with light loads.
Due to its modular design, the power will be redundant when
loads are light.
N+X parallel system,
where N is the
number of requisite
UPSs connected in
parallel, and X is the
number of redundant
UPSs
An N+X parallel system supplies power to important loads in
small- and medium-sized equipment rooms. It features high
reliability and powerful transient overload capacity.
1 ≤ N+X ≤ 4 (1 ≤ N ≤ 4, 0 ≤ X ≤ 3)
For example, in a 3+1 parallel system, three UPSs are requisite
and one UPS is redundant.
Dual-bus system
The dual-bus system is suitable for scenarios where high
availability requirements are posed for power supply. The
dual-bus system supplies power to important loads in large- and
medium-sized equipment rooms and data centers. In addition to
common parallel system advantages, the dual-bus system also
provides outstanding availability and eliminates bottleneck
failures. However, configuration of the dual-bus system is
complex.
The number of requisite UPSs and redundant ones can be set on the LCD and WebUI based on actual
requirements. A 1+1 parallel system is a typical configuration.