Mdu - Huawei UPS5000-E-FM Series User Manual

UPS5000-E-(25 kVA-125 kVA)-FM
User Manual

2.3.6 MDU

Appearance
Figure 2-23 MDU
(1) Status indicator
Table 2-9 Status indicator
Status
On
Off
Issue 06 (2019-12-13)
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–.
Color
Red
Yellow
Green
N/A
The indicator on the MDU panel is yellow when the bypass supplies power in non-ECO mode.
Copyright © Huawei Technologies Co., Ltd.
(2) LCD touchscreen
Meaning
A critical alarm has been generated, and the buzzer sounds
continuously.
A minor alarm has been generated, and the buzzer buzzes at 2 Hz.
The UPS is running properly or a warning has been generated.
The MDU is powered off.
2 Overview
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