Huawei UPS2000-G Series User manual

0
HUAWEI TECHNOLOGIES CO., LTD.
UPS2000-G-(6 kVA-10 kVA)
Quick Guide
Issue: 06
Part number: 31505542
Date: 2020-09-11

1
UPS Model Represented By Weight Dimensions (H x W x D)
UPS2000
-G-6KRTS/UPS2000-G-6KRTL
6
kVA
14
kg
86 mm x 430 mm x 615 mm
UPS2000
-G-10KRTS/UPS2000-G-
10KRTL
10
kVA
16
kg
86 mm x 430 mm x 615 mm
Overview
6 kVA/10 kVA Front View
No.
Name
Description
1
LCD
-
2
Mains indicator
•
On: Normal mode
•
Off: Mode other than
normal mode
3
Battery indicator
•
On: Battery mode
•
Off: Mode other than
battery mode
•
Blinking: The battery
reserve is less than 25%.
4
Bypass indicator
•
On: Bypass mode
•
Off: Mode other than
bypass mode
5
Fault
indicator/INFO
button
•
Red on: UPS fault
•
Blinking red: UPS alarm
•
Green: The UPS is running
properly.
6
Confirm/Start
button
Enter/Startup/Mute/Battery
self
-check
7
Page Down key
-
8
Page Up key
-
9
ESC/Shutdown
button
Returns to an upper
-level
menu, or shuts down the UPS.
The UPS is working in ECO mode
only if the mains indicator and
bypass indicator are both on.
(1) Battery terminal
cover
(2) Input circuit breaker
(3) Fuse port
(4) Maintenance bypass
port (MBS)
(5) EPO port
(6) USB port
(7) Battery temperature
sensor port
(8) Cover for optional
card slot
(9) CAN
communications port
(10) Parallel port
(11) Output sockets
(12) AC input and
output terminal
cover
10 kVA Rear View
6 kVA Rear View
ESC
UG06009966
1
2
89 7 6
3 4 5
BATT.240VDC
PE
PE N PE NL sL pL
OFF ONACINPUT
ACINPUT ACOUTPUT
+
12 11 10 9 8
7654321
BATT.240VDC
PE
PE PEN NL3 L1L2 sL pL
OFF ONAC INPUT
ACINPUT
+
ACOUTPUT
10 9 8
765421
UG06009965
Copyright © Huawei Technologies Co., Ltd. 2020. All rights reserved.

UG06009999
ESC
UG06009994
UG06009964
ESC
1Installing the UPS
2
UPS (2 U)
(Optional) Battery pack, 3 U
3. Remove the LCD protective cover, install mounting ears, and install devices from bottom to top,
as shown in the following figure.
2. If adjustable guide rails are required, install them. If no adjustable guide rail is required, install
only four floating nuts.
Do not push the guide
rail out of the rack
when putting the UPS
into the rack, as the
front end of the guide
rail is not screwed.
Front
Rear
M6x16 (4 PCS)
3 N·m
M4x8 (8 PCS)
1.2 N·m
M6x16 (4 PCS)
3 N·m
LCD
1. Carefully read the UPS2000-G-(6 kVA-20 kVA) User Manual prior to installation to get
familiar with product information and safety precautions.
2. Use insulated tools when installing the UPS.
3. Only engineers certified by the manufacturer or its agents are allowed to perform UPS
commissioning and maintenance. Otherwise, personal injury or equipment damage may
occur, and the resulting UPS faults are beyond the warranty scope of Huawei.
Installing a Single UPS
Rack-mounting
Scenario 1
1. Determine installation dimensions.
UPS (2 U)
(Optional) Battery
pack, 3 U

UG06009992
UG07009999
UG06009991
2Installing AC Input and Output Power Cables
1. Connect UPS AC input and output power cables in the same phase sequence. Connect battery
terminals correctly.
2. Before connecting cables, ensure that the input circuit breaker, output circuit breaker, and
battery circuit breaker are OFF to prevent operations with power applied.
3. If the input or output cable connection needs to be changed, contact Huawei technical
support if you are not familiar with the operation. Do not power on the UPS directly.
4. If the input or output system is changed, ensure that the short-circuit copper bar status and
cable connections at input and output ports are correct.
5. For a single UPS, connect primary loads to the AC OUTPUT sL terminal and connect
secondary loads to the AC OUTPUT pL terminal. For a parallel system, connect loads to the
AC OUTPUT pL terminal, instead of the sL terminal.
When you tower-mount the UPS, place devices including the UPS horizontally to facilitate cable
installation. Stand the devices upright after cable installation.
Rubber
plug
UPS
(2 U)
UPS support base
UPS + battery pack
support base
6 kVA Single-Phase Input and Output
Mains AC
loads
Wiring Terminal
AC INPUT
AC OUTPUT
External Circuit
Breaker
50 A (the characteristics of
D)
Earth Leakage
Circuit Breaker
100
mA
-
Cable Cross
-
sectional Area
6 mm
²
Terminal Type
6 mm
²M4 OT terminal
M4 (6 PCS)
1.4 N·m
10 kVA Single-Phase Input and Output
Short-
circuit
copper
bar
Mains AC
loads
Tower-mounting
Scenario 2
K1
Q1
Wiring Terminal
AC INPUT
AC OUTPUT
External Circuit
Breaker
63 A
(the characteristics
of D)
Earth Leakage
Circuit Breaker
100
mA
-
Cable Cross
-
sectional Area
10 mm
²
Terminal Type
10 mm² M6 OT terminal
M5 (6 PCS)
2.8 N·m
Q1
K1
3
(Optional) Battery
pack, 3 U

-+-+
PE
BATT.240VDC
-+-+
UG06009987
PE
BATT.PORT/240VDC PE BATT.PORT/240VDC PE BATT.PORT/240VDC PE BATT.PORT/240VDC
-+-
+
PE
BATT.240VDC
UG06009990
UG07009998
4
10 kVA Three-Phase Input and
Single-Phase Output
Mains AC
loads
1. The UPS2000-G-6KRTL/10KRTL can connect to external battery strings. Each battery string
consists of 20 batteries in standard configuration, and the number of batteries ranges from
16 to 20.
2. Install a DC circuit breaker between the battery string and the UPS (50 A, 300 V DC circuit
breaker for the 6 kVA UPS, and 63 A, 300 V DC circuit breaker for the 10 kVA UPS).
3. One to four battery packs can be connected. For details, see the ESS-240V12-(9AhBPVBA,
7AhBPVBA) Quick Installation Guide .
3Installing Battery Cables
Ground
point
External battery strings
Battery 1
Wiring
Terminal
Battery
(BATT.240VDC)
External Circuit
Breaker
•
6 kVA: 50 A
(the
characteristics
of D)
•
10 kVA: 63 A
(the
characteristics
of D)
Cable Cross
-
sectional Area
•
6 kVA: 6 mm²
•
10 kVA: 10 mm
²
Terminal Type
•
6 kVA: 6 mm²
M4 OT terminal
•
10 kVA
: 10 mm²
M6 OT terminal
External Battery Strings
External Battery Packs
UPS battery port
Battery pack 1 ports Battery pack 2 portsUPS battery port
Wiring Terminal
AC INPUT
AC OUTPUT
External Circuit
Breaker
63 A (the characteristics of
D)
Earth Leakage
Circuit Breaker
100
mA
-
Cable Cross
-
sectional Area
10 mm
²
Terminal Type
10 mm² M6 OT terminal
M5 (8 PCS)
2.8 N·m
Q1
K1
Do not reverse-connect the DC
circuit breaker.
Battery 1
Battery 20 Battery 20

EPO MBS
UG07000015
COM_2 COM_1
UG07000014
COM_1
UG07000013
TEM_HUM NETWORK
UG07000012
5
4(Optional) Installing Cables for Optional Cards
1. For details about how to install the dry contact card and Modbus card, see the RMS-
RELAY01A User Manual and RMS-MODBUS01A User Manual , respectively.
2. For details about how to install the SNMP card without a USB port (old version), see the
RMS-SNMP01A V100R001 Installation Guide . For details about how to install the SNMP card
with a USB port (new version), see the RMS-SNMP01A V100R002 Quick Guide . The following
figure shows the SNMP card with a USB port.
Modbus Card
In the figure, the
two UPSs represent
two separate single
UPS systems.
5(Optional) Connecting a Switch to EPO Ports
1. Connect an external switch to the
EPO ports and turn on the switch.
After you turn on the switch, the
inverter stops, and the UPS does
not transfer to bypass mode. In
this way, the UPS stops supplying
power immediately.
2. The external switch (it can be a
common switch) that connects to
the EPO ports needs to be
provided by the customer.
Modbus card
cascading
UPS 2
UPS 1
SNMP Card Dry Contact Card
Temperature
and humidity
sensor
Ethernet Customer
equipment
RS232-RS485
adapter
RS232 serial
port on the
PC

6
6Verifying the Installation
No.
Check Item
Check Result
1
If the input or output system is changed, the short
-
circuit copper bar status
and cable connections at input and output ports are correct.
□Passed
□
Failed
2
The input power phase sequence is correct. No short circuit occurs on the
input and output terminals (a
multimeter is used for the check).
□Passed
□
Failed
3
Cables and terminals are securely connected.
□Passed
□
Failed
4
Battery cables and terminals are connected correctly, and voltages comply
with industry standards.
□Passed
□
Failed
5
The UPS is properly connected to battery strings.
□Passed
□
Failed
6
Input circuit breakers and load circuit breakers are OFF.
□Passed
□
Failed
7
Power cables and signal cables are correctly identified.
□Passed
□
Failed
8
Ground cables are reliably connected. The voltage between the neutral
wire and the ground cable is less than 5 V AC.
□Passed
□
Failed
9
Mains startup input voltage range: 120
–
280 V AC(after being powered on,
can range from 80 V AC to 280 V AC); battery voltage: greater than the
number of batteries multiplied by 10.8 V DC
□Passed
□
Failed
1. After the check is complete, install the UPS
front panel.
2. It is recommended that the UPS be sheltered
after installation (before power-on) with baffle
plates or plastic bags to prevent dust on the
top of the UPS or inside the UPS.
Front panel
User interface (UI) snapshots shown in this document correspond to V100R001C10SPC600
and are for reference only. If any UI changes are made, contact Huawei technical support to
obtain the latest snapshots.
Symbol Description Remarks
Press A. A and B indicate operation symbols on
the control panel.
Press B after you press A.
Indicates omitted screens. N/A
A
A B
7Powering On and Starting the UPS
UG06009988

7
Powering On the UPS
7.1
Setting Key Parameters and Starting the Inverter
7.2
Parameter
Description
Language
You can select
Chinese, English (preset), Spanish, French, or Russian. Set the
parameter as required.
Output mode
Not configurable for 6
kVA/10 kVA. The preset value is Single-phase.
Voltage level
For single
-phase output, the options include 220 V (preset), 230 V, and 240 V.
Frequency
level
Options:
50 Hz (preset), 60 Hz, and Automatic. Set the frequency level based on
the actual output frequency. When the value is set to Automatic, the system
output frequency is 50 Hz if the power
-on bypass frequency ranges from 40 Hz to
55 Hz; the system output frequency is 60 Hz if the power
-on bypass frequency
ranges from 55 Hz to 70 Hz (excluding 55 Hz).
Number of
batteries
The value ranges from 16 to 20. The preset value is
20.
Battery
capacity
Battery capacity is the sum of each battery string. Set the battery capacity based
on the actual value. The preset value is
7 Ah for 6 kVA UPS with standard backup
time and
40 Ah for 6 kVA UPS with long backup time. The preset value is 9 Ah
for
10
kVA UPS with standard backup time and 65 Ah for 10 kVA UPS with long
backup time.
1. Incorrectly setting battery parameters compromises battery safety and battery backup time.
For details about parameter settings, see the UPS2000-G-(6 kVA-20 kVA) User Manual .
2. Set system parameters with caution because the settings determine normal UPS operation.
End
Check that the UPS has passed all check items described in
chapter 6 "Verifying the Installation."
Turn on the external battery circuit breaker if any.
Turn on UPS upstream AC input circuit breaker (K1) and
AC input circuit breaker on the UPS rear panel.
Start
Start the UPS in
normal mode?
No: Start the UPS
in battery mode.
The initialization screen is displayed.
Press
Set the language.
Start
Set the number of batteries. Set the battery capacity.
End
On the default screen, press for more than 5 seconds until you hear the beep tone. The
inverter starts.
Set the voltage level.
Set the frequency level.
Yes

8
The following screens apply to the UPS started in normal mode.
Set the language (preset: English), system parameters, and battery parameters.
Scenario 1: Initial Startup
Scenario 2: Non-initial Startup
1. Preset password: 000001. The password allows you to
enter the Settings screen.
2. Preset feature code: 999999. The password is used to
restore the password to the preset value.
If this is not the initial startup and these parameters have been set before, the system uses the
existing settings by default. Confirm the settings, as shown in the following figures.
HUAWEI
HUAWEI

9
Perform "startup operations": On the standby screen, hold down for about 5 seconds. Release
the button when you hear a beep tone. The startup screen is displayed. If the UPS starts
successfully, it enters the normal mode. After you ensure that the UPS runs properly, turn on the
AC output circuit breaker (Q1) to start loads.
Perform "shutdown operations" to shut down the UPS: On the default screen, hold down ESC for
more than 5 seconds. Release the button when you hear a beep tone. The inverters shut down. If
the bypass voltage is within the configured range, the UPS transfers to bypass mode. If the
bypass voltage is beyond the configured range, the UPS has no output.
8Shutting Down the UPS
1. Shut down loads.
2. Perform "shutdown operations" on the UPS. The inverters shut down. If the bypass voltage is
within the configured range, the UPS transfers to bypass mode. If the bypass voltage is beyond
the configured range, the UPS has no output.
3. Turn off the UPS AC input circuit breaker (K1) and output circuit breaker (Q1).
4. Turn off the external battery circuit breakers (if there are), or disconnect battery power cables
(if there is no battery circuit breaker). After all indicators turn off and fans stop, the UPS shuts
down and stops supplying power to loads.
1
2
Shutting Down Inverters to Transfer the UPS to Bypass Mode
8.1
Powering Off the UPS
8.2
More
than 5
seconds

UG06009998
1Installing a Parallel System
10
UPS (2 U)
(Optional)
Battery
pack,
3 U
(Optional)
PDU, 3 U
Parallel System Operations
Install devices from bottom to top, as shown in
the figure.
UG06009996
2Installing AC Input and Output Power Cables
When you tower-mount UPSs, place devices
including UPSs horizontally to facilitate cable
installation. Stand the devices upright after
cable installation.
This section describes how to install a 1+1 parallel system.
Rack-mountingScenario 1 Tower-mounting
Scenario 2
1. Ensure that the AC input and output power cables on each UPS are connected in the same
phase sequence, battery terminals are connected correctly, and the bypass power cables are
connected in the same phase sequence.
2. Before cable connection, turn off all circuit breakers in the parallel system.
1. The UPS can generate large leakage currents. A circuit breaker equipped with an RCD is not
recommended. If leakage protection is required, select a recommended circuit breaker.
2. Circuit breakers used for cable connection need to be provided by the customer.
3. In a parallel system, parallel cables must have the same length (1 meter or longer) and
thickness, and must be connected together at the remote end.
K: general AC input circuit breaker; K1: UPS 1 input circuit breaker; K2: UPS 2 input circuit
breaker; Q: general AC output circuit breaker; Q1: UPS 1 output circuit breaker; Q2: UPS 2
output circuit breaker
Connect cables based on the actual situation. For details about the wiring terminal, external circuit
breaker, earth leakage circuit breaker, cable cross-sectional area, and terminal type, see the
description about these items for a single UPS.

UG07009997
UG06009985
11
6 kVA Single-Phase Input
and Output
Mains AC
loads
M4 (12 PCS)
1.4 N·m
UPS 2
UPS 1
Without PDU
Scenario 1
10 kVA Single-Phase
Input and Output
Short-circuit
busbar
Mains
M5 (12 PCS)
2.8 N·m
AC
loads
Short-circuit
busbar
UPS 2
UPS 1
Q2
Q
K2
Q1
K
K1
Q2
K2
Q
K
Q1
K1

UG07009996
UG06009984
12
10 kVA Three-Phase Input and
Single-Phase Output
Mains
M5 (16 PCS)
2.8 N·m
AC
loads
UPS 2
UPS 1
With PDU
Scenario 2
6 kVA Single-Phase Input
and Output
UPS 2 UPS 1
PDC-0091V2ACIOA
Q2
K2
Q
K
Q1
K1
For details about PDU cable connections, see the PDC-0091V2ACIOA V100R001
Quick Installation Guide .
M4 (12 PCS)
1.4 N·m

UG07009994
UG07009995
13
10 kVA Single-Phase
Input and Output
UPS 2 UPS 1
10 kVA Three-Phase Input and
Single-Phase Output
UPS 2 UPS 1
PDC-0091V2ACIOA
PDC-0091V2ACIOA
M5 (12 PCS)
2.8 N·m
M5 (16 PCS)
2.8 N·m

UG06009983
-
+-
+
PE
BATT.240VDC PE
BATT.240VDC
-+-+
PE
BATT.240VDC
-+
PE
BATT.240VDC
-+
UG06009982
14
3Installing Battery Cables
UPSs in a parallel system cannot share battery strings or battery packs.
Ground
point
External Battery Strings
External Battery Packs
Ground
point
Battery 1
Battery 20
UPS 1 battery port UPS
n (2 ≤ n ≤ 4) battery port
UPS 1 battery port
UPS n (2 ≤ n ≤ 4) battery port
External battery string 1 External battery string
n
Battery
pack port
Battery
pack port
Battery
pack
port
Battery
pack
port
Battery
pack port
Battery
pack port
Battery
pack port
Battery
pack
port
Each 6 kVA/10 kVA UPS with standard backup time is equipped with a battery pack. Each 6
kVA/10 kVA UPS with long backup time can be equipped with one to four battery packs.
Battery 1
Battery 20
Battery 1
Battery 20
Battery 1
Battery 20

UG06009989
PARALLEL 1 PARALLEL 2 PARALLEL 1 PARALLEL 2
UG06009963
15
4(Optional) Installing Cables for Optional Cards
The methods for installing the SNMP card and dry contact card for a parallel system and for a
single UPS are the same. See the single UPS part for details. The following shows how to install
cables for the Modbus card. UPS 2UPS 1
5(Optional) Connecting a Switch to EPO Ports
1. Connect an external switch to the EPO ports and turn on the switch. After you turn on the
switch, the inverter stops, and the UPS does not transfer to bypass mode. In this way, the
UPS stops supplying power immediately.
2. The external switch (it can be a common switch) that connects to the EPO ports needs to be
provided by the customer.
UPS 2UPS 1
6Installing Parallel Communications Cables
Parallel
communications cable
UPS 2
UPS 1
RS232-RS485 adapterRS232 serial
port on the PC
EPO MBS
EPO MBS
UG07000016

16
7Verifying the Installation
1. Check each UPS in the parallel system by following instructions in chapter 6 "Verifying the
Installation."
2. Check that parallel cables are connected properly, and that the output voltage of each UPS in the
parallel system is the same.
8Powering On and Starting the Parallel System
Do not start loads before the parallel system is started.
Check that the parallel system has passed all check items
in chapter 7 "Verifying the Installation."
Turn on the external battery circuit breaker if any.
Turn on the general UPS AC input circuit breaker (K) and
input circuit breakers of branches (K1 and K2).
Start
End
No: Start UPSs in
battery mode.
Yes
Check that the voltage is normal.
Turn on the branch output circuit breakers (Q1 and Q2).
Start UPSs in
normal mode?
Powering On UPSs
8.1
Press
1. Set the language (preset: English), system parameters, and battery parameters for each UPS
by following instructions in section 7.2 "Setting Key Parameters and Starting the Inverter."
2. Set Single/Parallel to Parallel and set Redundant UPSs to an appropriate value.
Setting Key Parameters and Starting Inverters
8.2
1. Before starting inverters, ensure that parallel parameters are synchronized. For details about
the parallel parameters, see the UPS2000-G-(6 kVA-20 kVA) User Manual .
2. After you perform "startup operations" on UPS 1 to UPS n one by one, UPS 1 to UPS n are
starting. If you do not perform "startup operations" on the other UPSs in 5 minutes, UPS 1
to UPS n enter normal mode, and the other UPSs supply no power.

17
3. If no alarm is displayed on the monitoring screen, continue with the subsequent operations. If
an alarm is displayed, clear the alarm.
4. Check that the bypass input is normal and the UPS has transferred to bypass mode by viewing
the system running status on the LCD.
5. Perform "startup operations" on each UPS: On the standby screen, hold down for about 5
seconds. Release the button when you hear a beep tone. The startup screen is displayed. If the
parallel system starts successfully, it enters the normal mode.
6. After the parallel system runs properly, close the general AC output circuit breaker (Q) for the
UPSs and start each load. To prevent triggering overload protection, start the loads with higher
power and then loads with lower power.
9Shutting Down the Parallel System
1. Perform "shutdown operations" twice (one shutdown operation: On the standby screen, hold
down ESC for about 5 seconds. Release the button each time you hear a beep tone.) on a UPS
in the parallel system within 30 seconds. The UPS shuts down and enters the non-output state
(the mains, bypass, battery indicators are off). The other UPSs keep working.
2. Turn off the UPS AC input circuit breaker (K1 or K2) and AC output circuit breaker (Q1 or Q2).
3. Turn off the external battery circuit breakers (if there are), or disconnect battery power cables
(if there is no battery circuit breaker). The UPS exits the parallel system. After all indicators
turn off and fans stop, the UPS shuts down.
Perform "shutdown operations" on each UPS in the parallel system. The inverters shut down. If
the bypass voltage is within the configured range, the UPS transfers to bypass mode. If the
bypass voltage is beyond the configured range, the UPS has no output.
1. Shut down loads.
2. Perform "shutdown operations" on each UPS in the parallel system. The inverters shut down. If
the bypass voltage is within the configured range, the UPS transfers to bypass mode. If the
bypass voltage is beyond the configured range, the UPS has no output.
3. Turn off the AC input circuit breaker for each UPS (K1 or K2) and the general AC input circuit
breaker (K), and then turn off the AC output circuit breaker for each UPS (Q1 or Q2) and the
general AC output circuit breaker (Q).
4. Turn off the external battery circuit breaker for each UPS or the general battery circuit breaker
(when all UPSs share a battery string). If no external battery circuit breaker is configured,
disconnect battery power cables from each UPS. After all indicators turn off and fans stop, the
UPS shuts down and stops supplying power to loads.
Shutting Down a UPS in a Parallel System
9.1
Transferring a Parallel System to Bypass Mode
9.2
Powering Off a Parallel System
9.3
Perform "shutdown operations" twice on a UPS within 30 seconds. Otherwise, the UPS fails to
shut down.

18
Alarm
Name
Alarm ID
(Alarm ID-
Alarm
Cause)
Alarm
Severity
Alarm
Clear
Mode
Impact on the
System
Repair Proposal
Abnormal
mains volt.
0001
-01
Minor
Automati
c clear
•
The UPS
transfers to
battery mode.
•
If no battery is
equipped, the
UPS shuts down.
•The UPS changes
the working
mode or shuts
down.
Possible causes:
•
The mains voltage exceeds 280
V.
•
The mains voltage is less than
80 V.
•
The mains frequency is not in
the range of 40 Hz to 70 Hz.
Measures:
•Check whether the mains input
voltage is less than 272 V. If not,
wait until the mains recovers.
•Check whether the mains input
voltage is greater than 88 V. If
not, wait until the mains
recovers.
•
Check the mains input
frequency. If the mains input
frequency is abnormal, wait
until the mains input recovers.
0001
-02
Minor
0001
-03
Minor
Abnormal
BPS volt.
0010
-01
Minor
Automati
c clear
The UPS cannot
transfer to bypass
mode. If the bypass
is supplying power,
the UPS changes
the working mode.
Possible causes:
•
The bypass input voltage is
abnormal.
•
The bypass input frequency is
abnormal.
Measures:
•Check whether the bypass input
voltage exceeds the configured
range. If yes, change the range
or wait until the bypass input
recovers.
•Check whether the bypass input
frequency exceeds the
configured range. If yes, change
the range or wait until the
bypass input recovers.
0010
-02
Minor
Mains
phase
reverse
0004
-01
Minor
Automati
c clear
•
The rectifier
transfers to
battery mode,
without affecting
the power supply.
•
If no batteries
are installed, the
UPS shuts down.
•
The UPS may
transfer to
another working
mode or shut
down.
Possible cause: The mains input
three
-phase sequence is incorrect.
Measure: Check that mains input
power cables are correctly
connected.
Alarm Handling
For more alarm handling, see the UPS2000-G-(6 kVA-20 kVA) User Manual .

19
Alarm
Name
Alarm ID
(Alarm
ID
-
Alarm
Cause)
Alarm
Severity
Alarm
Clear
Mode
Impact on the
System
Repair Proposal
BPS
phase
reverse
0011
-01
Minor
Automati
c clear
•
If the inverter
has not started,
the system has
no output, and
inverter startup
is prohibited.
•
If the inverter
has started, the
inverter still
works properly,
but the system
cannot transfer
to bypass mode.
Possible cause: The bypass input
three
-phase sequence is incorrect.
Measure: Check that bypass input
power cables are correctly connected.
Batt
.
overvolt
.
0025
-01
Minor
Automati
c clear
An alarm is
generated, and the
battery lifespan is
affected.
Possible causes:
•
The configured number of
batteries is less than the actual
number.
•
The battery string charge voltage
exceeds the upper threshold.
Measures:
•
Check battery parameter settings.
•Check the charger. When batteries
are disconnected, check whether
the charger voltage is normal. If
the charge voltage exceeds the
upper threshold, contact Huawei
technical support.
Batt
.
undervolt.
0026
-01
Minor
Automati
c clear
An alarm is
generated, and the
system may shut
down due to EOD.
Possible cause: The mains input is
abnormal. Battery discharge results in
a low battery voltage.
Measure: If possible, connect to the
mains power when the UPS is in non-
battery test state.
Rectifier
fault
0040
-04
Critical
Manual
clear/Pow
er
-off
clear/Aut
omatic
clear
The UPS shuts
down.
The UPS transfers
to another working
mode or shuts
down.
Possible causes:
•
The mains experiences
instantaneous high-
voltage impact.
•
The output has special loads such
as inductive loads and rectification
loads.
•
The output has transformer loads
but the transformer mode is not
set.
•
The hardware is damaged.
Measures:
•
After you rectify the fault, restart
the UPS.
•
Check whether the load type is
supported by the UPS.
•
Enable the transformer mode.
•
Contact Huawei
technical support
for repair.