Huawei UPS2000-A-6KTTS-S User manual

0
HUAWEI TECHNOLOGIES CO., LTD.
UPS2000-A-(6 kVA-10 kVA)
Quick Guide
Issue: 04
Part Number: 31506975
Date: 2020-09-11

Copyright © Huawei Technologies Co., Ltd. 2020. All rights reserved.
1
UPS Model Represented By Weight (kg) Dimensions (H x W x D)
UPS2000-A-6KTTS-S 6 kVA standard version with
standard backup time 60
580 mm x 250 mm x 605 mm
UPS2000-A-6KTTL-S 6 kVA standard version with
long backup time 20
UPS2000-A-6KTTS-P 6 kVA professional version
with standard backup time 70
UPS2000-A-6KTTL-P 6 kVA professional version
with long backup time 21
UPS2000-A-10KTTS-S 10 kVA standard version with
standard backup time 67
UPS2000-A-10KTTL-S 10 kVA standard version with
long backup time 21
UPS2000-A-10KTTS-P 10 kVA professional version
with standard backup time 79
UPS2000-A-10KTTL-P 10 kVA professional version
with long backup time 22
Introduction
6 kVA/10 kVA Standard Version
with Standard Backup Time
6 kVA/10 kVA Standard Version
with Long Backup Time
(1) AC input circuit breaker
(2) Optional card slot (under the cover)
(3) USB port (security protection mechanism
supported)
(4) Maintenance bypass status (MBS) port
(5) Emergency power
-off (EPO) port
(6) AC input terminal (under the cover)
(7) AC output terminal (under the cover)
(8) Battery wiring terminal (under the
cover)
UG10000003
1
2
3
4
5
6
7
8
UG10000001
1
2
3
4
5
6
7

2
6 kVA/10 kVA Professional Version
with Standard Backup time
6 kVA/10 kVA Professional Version
with Long Backup Time
(1) AC input circuit breaker
(2) Optional card slot (under the cover)
(3) EPO port
(4) USB port (security protection mechanism
supported)
(5) MBS port
(6) Parallel cable port
(7) Micro switch (under the cover)
(8) Maintenance bypass circuit breaker
(9) AC output circuit breaker
(10) AC input terminal (under the cover)
(11) Single UPS jumper terminal (under the cover)
(12) AC output terminal (under the cover)
(13) Battery wiring terminal (under the cover)
UG10000006
1
2
3
4
5
10
6
11
12
9
8
7
UG10000007
1
2
3
4
5
6
9
8
7
10
11
12
13

UG10000079
130
130
313.5
1Installing the UPS
3
1. Before installation, read the UPS2000-A-(6 kVA-10 kVA) User Manual to get familiar
with UPS information and safety precautions.
2. Use fully insulated tools during installation and operation.
3. Only engineers certified by the manufacturer or its agents are allowed to perform UPS
installation, commissioning, and maintenance. Otherwise, personal injury or equipment
damage may occur, and the resulting UPS faults are beyond the warranty scope.
Mounting bracket
(optional)
M6x12 (4 PCS)
3 N•m
Unit: mm
M12x60 (4 PCS)
45 N•m
Mounting brackets can be configured for a UPS with standard backup time and a battery
box, but not for a UPS with long backup time.
Move the UPS to the installation position and press down the brake pads on the casters to secure
the UPS.
If mounting brackets are configured, install the mounting brackets on the UPS using M6x12 bolt
and secure the UPS to the floor using M12x60 expansion bolts.
Brake pad
Installation a Single UPS
2Installing AC Input and Output Power Cables
1. Connect UPS AC input and output terminals L, N correctly. For a UPS with long backup time,
connect the battery terminals correctly.
2. Before connecting cables, ensure that the input and output circuit breakers are OFF. For a
UPS with long backup time, ensure that the battery circuit breakers are OFF. Perform all tasks
with the power off.
The UPS can generate high leakage current. A circuit breaker with leakage current protection
is not recommended. If leakage current protection is required, use the recommended model.

UG10000016
UG10000017
4
6 kVA/10 kVA Standard Version
with Standard Backup Time
Model
UPS2000
-A-6KTTS-S
UPS2000
-A-6KTTL-S
UPS2000
-A-6KTTS-P
UPS2000
-A-6KTTL-P
UPS2000
-A-10KTTS-S
UPS2000
-A-10KTTL-S
UPS2000
-A-10KTTS-P
UPS2000
-A-10KTTL-P
Wiring Terminal
AC INPUT
AC OUTPUT
AC INPUT
AC OUTPUT
External Circuit Breaker
50 A/D
63 A/D
Earth Leakage Circuit Breaker
100
mA
-
100
mA
-
Cable Cross
-sectional Area
6 mm
2
10 mm
2
Terminal Type
OT
-6 mm2-M4 terminal
OT
-10 mm2-M6 terminal
6 kVA/10 kVA Standard Version
with Long Backup time
UPS2000-A-6KTTS-S
M4 (6 PCS)
1.4 N•m
UPS2000-A-10KTTS-S
M5 (6 PCS)
2.8 N•m
UPS2000-A-6KTTL-S
M4 (6 PCS)
1.4 N•m
UPS2000-A-6KTTL-S
M5 (6 PCS)
2.8 N•m
6 kVA/10 kVA Professional Version
with Standard Backup Time 6 kVA/10 kVA Professional Version
with Long Backup Time
UPS2000-A-6KTTS-P
M4 (6 PCS)
1.4 N•m
UPS2000-A-10KTTS-P
M5 (6 PCS)
2.8 N•m
UPS2000-A-6KTTL-P
M4 (6 PCS)
1.4 N•m
UPS2000-A-6KTTL-P
M5 (6 PCS)
2.8 N•m
UG10000089
UG10000090
Mains AC
load Mains AC
load
Short-
circuit
bar
Short-
circuit
bar
Mains AC
load Mains AC
load
1. For a single UPS, install a short-circuit bar between JP1 and JP2. For a parallel system, do not
install it. When transferring from single mode to parallel mode, confirm that the short-circuit
bar is removed.
2. The professional version supports the dual-live wire system. Connect the L1 and L2 wires
respectively to the L and N terminals on the UPS.

-+-+
UG10000092
PE
BATT.PORT/240VDC
-+
PE
BATT.PORT/240VDC PE BATT.PORT/240VDC PE BATT.PORT/240VDC
UG10000091
5
3Installing Battery Cables (Only for UPS with Long Backup Time)
1. A UPS with long backup time is connected to external battery strings. Each battery string
consists of 16 to 20 batteries (16 by default, configurable).
2. Install a DC circuit breaker between a battery string and the UPS with long backup time.
Install a 50 A 300 V DC circuit breaker for the 6 kVA model, and a 63 A 300 V DC circuit
breaker for the 10 kVA model.
3. One or two battery boxes can be connected. For details, see the ESS-240V12-2x(9AhBPVBA,
7AhBPVBA) Quick installation Guide. If longer backup time is required, choose a battery rack.
Model
UPS2000
-A-6KTTL-S
UPS2000
-A-6KTTL-P
UPS2000
-A-10KTTL-S
UPS2000
-A-10KTTL-P
Wiring Terminal
BATT.
BATT.
External Circuit Breaker
50 A
63 A
Cable Cross
-sectional Area
6 mm
2
10 mm
2
Terminal Type
OT
-6 mm2-M4 terminal
OT
-10 mm2-M6 terminal
Connecting External Battery Strings
Ground
point
External battery strings
Battery 1
Battery 20Battery 20
Battery 1
Connecting External Battery Boxes
UPS UPS battery box 1 UPS battery box 2
UPS2000-A-6KTTS-P
M4 (3 PCS)
1.4 N•m
UPS2000-A-10KTTS-P
M5 (3 PCS)
2.8 N•m

6
4Verifying the Installation
No. Item Result
1
Input circuit breakers and load circuit
breakers are OFF.
□
Passed □Failed
2
Ground cables are
firmly connected. The voltage difference between a
neutral wire and a ground cable is less than 5 V AC.
Measure the
resistance between the UPS ground terminal and the equipment room
ground bar, which must be less than 0.1 ohm.
□
Passed □Failed
3
Cables and terminals are securely connected.
□Passed □Failed
4
Power cables and signal cables are correctly identified.
□Passed □Failed
5
The input
terminals L and N are correctly connected. Use a multimeter
to measure the input and output, which must be free from any
short
circuit
.
□Passed □Failed
6
The mains
supply voltage is 120–280 V AC during power-on (80–280 V
AC after power
-on). The battery voltage is greater than the number of
batteries multiplied by 10.8 V DC.
□Passed □Failed
7
For a
UPS with long backup time, battery cables and terminals are
connected correctly, and voltages comply with industry standards.
□Passed □Failed
8
For a
UPS with long backup time, the UPS is properly connected to
battery strings.
□Passed □Failed
5Powering On and Starting the UPS
Button
Meaning
Description
ESC
Shutdown/Back
•On the default screen in inverter mode, hold down ESC for more than
5 seconds. Release the button when you hear a beep tone. The
inverter shuts down.
•
On any other screen, press ESC to return to the upper-level menu
(the default screen is the upper-level screen for the main menu
screen).
▲
Up
•
Press ▲or ▼to scroll upward or downward.
•
You can set a value by using the list or step increase or decrease.
▼
Down
Startup/Enter/
Battery Self
-
Check/Mute
•On the default screen in bypass mode, hold down for more than
5 seconds. Release the button when you hear a beep tone. The UPS
starts.
•
On the default screen, press . The main menu is displayed. On
any menu screen, press . The lower-level menu is displayed. If
the menu is the last level, an information screen is displayed.
•
On the default screen in normal mode, hold down for more
than 5 seconds. Release the button when you hear a beep tone. The
battery self-check starts.
•
When the buzzer buzzes, hold down for 2–5 seconds. The
buzzer is muted when you release the button. After the buzzer is
muted, the alarm tone is unrecoverable unless a new alarm is
generated.
1. User interface (UI) snapshots shown in this document correspond to V100 and are for
reference only. If any UI changes are made, contact Huawei technical support to obtain the
latest snapshots.
2. For details about the letter and LCD display mapping, and alarm handling, see the appendix.

7
Check that the UPS has passed all check items
described in chapter 4 "Verifying the Installation".
Close the external battery
circuit breakers (if there are).
Close the upstream AC input circuit breaker for
the UPS and the AC input circuit breaker on the
rear panel of the UPS.
Start
End
Start the UPS in normal mode?
No: Start the UPS
in battery mode.
Yes
After the UPS is powered on, the LCD screen
lights up for 1 second, and then initialization
starts. After the progress bar is complete, the
default screen is displayed.
UPS with long backup time?
Yes
No: UPS with
standard backup
time
Press .
Powering On the UPS
5.1
After the LCD screen lights up for 1 second, the initialization screen is displayed. After the
progress bar is complete, the default screen is displayed. The following figures show how the
UPS is started in normal mode.
1. Incorrectly setting battery parameters compromises battery safety and battery backup time.
For details about parameter settings, see the UPS2000-A-(6 kVA-10 kVA) User Manual.
2. Set system parameters with caution because the settings determine normal UPS operation.
Setting Key UPS Parameters
5.2
Parameter
UI Display
Remarks
Output
voltage
level
01 VOT
•
For standard version: the optional values include 220 V, 230 V, and
240 V. The default value is 220 V. Set this parameter based on the
actual output voltage.
•For professional version: the optional values include 208 V, 220 V, 230
V, and 240 V. The default value is 220 V. Set this parameter based on
the actual output voltage.
Output
frequency
system
02 FRE
The optional values include 50 Hz, 60 Hz, and AUT (automatic). Set this
parameter based on the actual output frequency. If the value is AUT, the
power
-on bypass frequency is in the range from 45 Hz to 55 Hz, and the
system output frequency is 50 Hz; if the power
-
on bypass frequency is in
the range from 55 Hz from (excluding 55 Hz) to 65 Hz, the system
output frequency is 60 Hz.

8
Parameter
UI Display
Remarks
Number of
batteries
05 NO
.
Set the number of batteries based on the actual battery quantity.
•Professional version with standard backup time: 20 batteries; standard
version with standard backup time: 16 batteries, not configurable
•
UPS with long backup time: 16 batteries by default; value range: 16–
20
Total battery
capacity
06 CAP
Set this parameter to the total capacity of all batteries actually connected.
•
6 kVA UPS with standard backup time: 7 Ah, not configurable; 10 kVA
UPS with standard backup time: 9 Ah, not configurable
•
6 kVA UPS with long backup time: 40 Ah by default; 10 kVA UPS with
long backup time: 65 Ah by default; value range: 7–999 Ah
Charge
current limit
07 CL
•Set this parameter to the maximum charge current in equalized charge
mode based on actual conditions.
•6 kVA or 10 kVA UPS with standard backup time: 2 A, not configurable
•
6 kVA or 10 kVA UPS with long backup time: 4 A by default; value
range: 1–8 A, at an interval of 0.5 A
Set the output voltage level.
Start
Set the output frequency system.
Set the number of batteries.
End
No: UPS with long
backup time
Check that the input is normal
UPS with standard backup time?
On the default screen, hold down for more than 5 seconds. Release the button when you
hear a beep tone.
Set the total battery capacity.
After you ensure that the UPS runs properly, close the AC output circuit breakers on the rear
panel of the UPS (only for professional version), close the UPS AC output circuit breaker to
supply power to the loads.
Set the charge current limit.
Yes
The following figures show the parameter setting screen for a 10 kVA standard UPS with long
backup time working in normal mode.

There are two methods to start the inverter, using normal mode as an example:
•On the default screen, hold down for more than 5 seconds. Release the button when
you hear a beep tone. If the UPS starts successfully, it enters normal mode.
9
6Shutting down the UPS
Perform "shutdown operations" to shut down the UPS. There are two methods 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 inverter shuts 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.
•On the default screen, press to enter the CTR menu. Choose INV OFF to shut down the
inverter. 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 the UPS. The inverter shuts down, and the UPS transfers to
bypass mode. If the bypass voltage is beyond the configured range, the UPS has no output.
3. Open the upstream AC input circuit breaker for the UPS, the AC input circuit breakers on the rear
panel of the UPS, the AC output circuit breakers on the rear panel of the UPS (only for
professional version), the UPS AC output circuit breaker.
4. For a UPS with long backup time, you also need to open the external battery circuit breakers (if
there are) or disconnect the battery cables (if there is no battery circuit breaker). After all
indicators turn off and fans stop, the UPS shuts down and loads power off.
•On the default screen, hold down to enter the CTR menu. Select INV ON in the CTR menu.
If the UPS starts successfully, it enters normal mode.
Shutting down the Inverter to Transfer a Single UPS to Bypass Mode
6.1
Powering Off a Single UPS
6.2

UG10000082
1Installing the UPS
10
2Installing AC Input and Output Power Cables
1. Connect UPS AC input and output terminals L, N correctly. For a UPS with long backup time,
connect the battery terminals correctly.
2. Before connecting cables, ensure that the input circuit breaker and output circuit breaker
are OFF. For a UPS with long backup time, ensure that the battery circuit breakers are OFF.
Perform all tasks with the power off.
Refer to the UPS installation method on page 3 to install each UPS in the parallel system.
Installation Parallel System
1. The professional version supports parallel connection, and the standard version does not.
2. This section describes how to install a 1+1 parallel system. A maximum of four UPSs can be
connected in parallel.
6 kVA/10 kVA Professional Version with Standard Backup Time
UPS2000-A-6KTTS-P
M4 (12 PCS)
1.4 N•m
UPS2000-A-10KTTS-P
M5 (12 PCS)
2.8 N•m
1234
5 6
(1) AC input circuit breaker
of UPS 1
(2) AC input circuit breaker
of UPS 2
(3) AC output circuit
breaker of UPS 1
(4) AC output circuit
breaker of UPS 2
(5) General AC input circuit
breaker of the parallel
system
(6) General AC output
circuit breaker of the
parallel system
Mains AC
load
For a single UPS, install a short-circuit bar between JP1 and JP2. For a parallel system,
do not install it. When transferring from single mode to parallel mode, confirm that the short-
circuit bar is removed.
UPS 2
UPS 1
External power
distribution
(provide by the
customer)

UG10000084
1234
5
11
6 kVA/10 kVA Professional Version with
Long Backup Time
3Installing Battery Cables (Only for UPS with Long Backup Time)
The battery cable connection method for a single UPS and a parallel system is the same. For
details, see page 5.
The UPS2000-A does not support battery string sharing.
4Installing Parallel Communications Cables
UG10000083
PORT1 PORT2 PORT1 PORT2
UPS 2
UPS 1
This section describes the cable connection method for a 1+1 parallel system. Refer to this
method to connect the cables in other scenarios.
UPS2000-A-6KTTL-P
M4 (12 PCS)
1.4 N•m
UPS2000-A-10KTTL-P
M5 (12 PCS)
2.8 N•m
UPS 1 UPS 2
External power
distribution
(provide by the
customer)
Mains AC
load
(1) AC input circuit breaker of UPS 1
(2) AC input circuit breaker of UPS 2
(3) AC output circuit breaker of UPS 1
(4) AC output circuit breaker of UPS 2
(5) General AC input circuit breaker of
the parallel system
(6) General AC output circuit breaker
of the parallel system

12
5Verifying the Installation
1. Refer to chapter 4 "Verifying the Installation" to check each UPS in the parallel system
before power-on. For details, see page 6.
2. Check that the parallel communications cables are properly connected.
6Powering On and Starting the UPS
1. Do not start loads before the parallel system is started.
2. Before power-on and startup, ensure that each branch output circuit breaker is closed and the
outputs are connected in parallel.
Check that the UPS has passed all check items described in
chapter 5 "Verifying the Installation".
Close the external battery circuit breakers (if there are).
Close the general AC input circuit breaker for UPSs, each
branch input circuit breaker, and the AC input circuit breakers
on the rear panels of UPS 1 and UPS 2.
Start
End
No: Start the UPS in battery mode.
Yes
Start the UPS in normal mode?
Powering On the UPS
6.1
Setting Key UPS Parameters
6.2
1. Refer to section 5.2 "Setting Key UPS Parameters" to set system and battery parameters for each
UPS. For details, see page 7.
2. Set the parallel mode and the number of redundant UPSs.
Check that the voltage is normal.
Close each branch output circuit breaker.

13
4. Perform "startup operations" (for details, see page 8) on each UPS in the parallel system. After
the UPSs start successfully, the parallel system transfers to normal mode.
5. After the parallel system runs properly, close the general AC output circuit breaker for the
UPSs and start each load. To prevent triggering overload protection, start the loads with higher
power and then loads with lower power.
7Shutting down the UPS
1. Perform "shutdown operations" (for details, see page 9) twice on a UPS in the parallel system
within 30 seconds. The UPS shuts down and enters the non-output state (the mains, bypass, and
battery indicators are off). The other UPSs keep working.
2. Open the AC input and output circuit breakers on the UPS. After all indicators on the UPS turn
off and fans stop, the UPS shuts down.
3. Open the external battery circuit breakers (if there are) or disconnect battery cables for the UPS.
The UPS exits the parallel system.
Perform "shutdown operations" on each UPS in the parallel system. All inverters shut down at the
same time, and the parallel system 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. All inverters shut down at
the same time, and the parallel system transfers to bypass mode. If the bypass voltage is
beyond the configured range, the UPS has no output.
3. Open the AC input circuit breaker on each UPS, the general input circuit breaker for the UPS
system, the AC output circuit breaker on each UPS, and the general AC output circuit breaker
for the UPS system.
4. Open the external battery circuit breakers (if there are) or disconnect the battery cables for
each UPS. After all indicators turn off and fans stop, the UPSs shut down, and loads power off.
▲
Before starting inverters, ensure that parallel parameters are synchronized. For details about
the parallel parameters, see the UPS2000-A-(6 kVA-10 kVA) User Manual .
1
1Shutting down a UPS in a Parallel System
7.1
Transferring a Parallel System to Bypass Mode
7.2
Powering Off a Parallel System
7.3
3. If no alarm is displayed on the Monitoring screen, continue with the subsequent operations. If
an alarm is displayed, refer to the alarm list to locate and clear the alarm. For details, see the
UPS2000-A-(6 kVA-10 kVA) User Manual.

14
Letter/Number and LCD Display Mapping
FAQ
Letter
/Number
A B C D E F G H I L N O P R S
LCD Display
Letter
/Number
TUVY0123456789-
LCD Display
-
LCD Menu Hierarchy
LCD
Display
No.
Acronym
and
Abbreviation
LCD Display No.
Acronym and
Abbreviation
Meaning
01
CTR (Control
menu)
01
INV ON
Starts the UPS
02
INV
OFF
Shuts down the UPS
03
ALR CLR
Clears ADMC alarms
04
BAT RPL
Replaces batteries
05
PAR SYN
Synchronizes parallel parameters
(available only in a parallel system).
05 (
standard version)
DEF RST
Restores default settings
06 (
professional version)
02
SET
(Setting
menu)
01
VOT
Output voltage level
02
FRE
Output frequency system
03
BVU
Maximum bypass voltage
04
BVL
Minimum bypass voltage
05
NO
.
Number of batteries
06
CAP
Total battery capacity
07
CL
Charge current limit
08
EOD
EOD mode
09
DT
Discharge time protection setting
10
ECO
ECO mode enabling
11
VU
Maximum ECO voltage
12
VL
Minimum ECO voltage
13
FR
ECO frequency range
14
S
-P
Single UPS or parallel system
(available only in a parallel system).
15
RED
Number of redundant UPSs in a
parallel system (available only in a
parallel system).
14 (
standard version)
DSP
DSP version number
16 (
professional version)
15 (
standard version)
CPL
CPLD version number
17 (
professional version)
03
ACT ALR
(Active alarm
display menu)
04
HIS ALR
(Historical
alarm display
menu)
Alarm ID Alarm cause ID
Active alarm No.
1
2

15
Check Item
Expected Result
Troubleshooting
Operating
environment
•
Ambient temperature: 0–40ºC
•
Humidity: 0–95% RH (non-condensing)
•Input voltage for standard version: 220
V AC, 230 V AC, or 240 V AC (single-
phase input); Input voltage for
professional version: 208 V AC, 220 V
AC, 230 V AC, or 240 V AC (single-
phase input).
•
Output voltage for standard version:
220 V AC, 230 V AC, or 240 V AC
(single-phase output); Output voltage
for professional version: 208 V AC, 220
V AC, 230 V AC, or 240 V AC (single-
phase output).
•
Frequency: 45–65 Hz
•
If the humidity and temperature
are abnormal, check the air
conditioner status.
•
If the input voltage is abnormal,
check the power grid status and
input cable connection.
•If the output voltage is abnormal,
check the UPS running status
and check whether an alarm is
present.
Control panel
Check that all units are operating properly
by observing the status icons on the LCD,
all operating parameters are within their
normal ranges, and no fault or alarm
information is displayed.
If an alarm is present, rectify the
fault by checking the device status
and parameters.
Abnormal
noise
No abnormal noise is generated.
Check where the abnormal noise
comes from, especially fans, input
and output transformer (if
configured). If the problem is not
resolved, contact
Huawei technical
support.
Cleanliness
Wipe the cabinet surface using a white
paper and the paper does not turn black.
Clean the dust.
UPS
parameters
See related parameter setting descriptions
in
UPS2000-A-(6 kVA-10 kVA) User
Manual
.
Reset the parameters.
Cables
Cables are intact and do not deteriorate
or damage.
If a cable is damaged, find the
reason and apply protective
measures such as rodent
-proof
measures.
Load change
N/A
Regularly check and record the
adding and removal of loads.
UPS
maintenance
report
N/A
Categorize exceptions and alarms.
Exported
alarm
N/A
Analyze and export alarm analysis
report.
Routine Maintenance
1UPS Monthly Maintenance
This section describes the monthly maintenance for the UPS and batteries. For more detailed
maintenance information, see the UPS2000-A-(6 kVA-10 kVA) User Manual .

16
Item Expected Result Measures
Charge
current
≤ 2 A (standard model)
≤ 8 A (long backup time
model)
If the charge current is incorrect, contact Huawei
technical support.
Battery string
charge
voltage
Equalized voltage 14.1 V x
Number of batteries
(tolerance ±1%)
Float voltage 13.5 V x
Number of batteries
(tolerance ±1%)
1. If the voltage drop between the battery
string output terminals and the battery input
terminals at the UPS host side is greater than
1% of the battery string voltage, check
whether the cable between the battery string
and the UPS is excessively long, or the cable
diameter is excessively small.
2. Check whether the equalized charging
voltage and float charging voltage are
correctly set for the UPS host.
3. If the fault persists, contact Huawei technical
support.
Battery
appearance
1.
The battery shell is intact,
without acid leaks,
deformation, or bulges.
2. The battery is free from
dust or dirt.
1. Take photos of any deformed or faulty parts
of batteries.
2. Check and record the charge voltage and
current of the battery string as well as the
voltage of each battery.
3. Check the battery surface temperature.
4. Keep deformed and bulged faulty batteries
still for 30 minutes and then check and
record open-circuit voltage of the faulty
battery.
5. If the fault persists, contact Huawei technical
support.
Battery
management
parameters
Parameters settings of
battery number, battery
capacity, battery charge
voltage, battery charge
current, and EOD setting
values meet requirements.
The capacity value matches
the actual value.
Set parameters correctly.
Battery alarm No battery alarm is
generated.
Identify the cause based on the alarm
information.
Battery
connection
Battery terminals and cables
are in good contact.
Ensure that battery terminals and cables are in
good contact.
Battery
operating
temperature
1. The difference between
temperature reported by
the battery temperature
sensor and the actual
temperature is less than
2ºC.
2. The service temperature
of a working battery does
not exceed 45ºC.
1. Identify the cause of the false temperature
sensor alarm.
2. Identify the cause of the abnormal battery
operating temperature.
3. If the fault persists, contact Huawei technical
support.
2Battery Maintenance

17
2
Symptom
Possible Cause
Measure
The mains switch is ON. The
LCD does not display
anything. The system does
not perform self
-tests.
The input power supply
is not connected.
The input voltage
exceeds the limit.
Check the input power cable connection.
Use a
multimeter to check that the UPS
input voltage meets specifications.
The mains is normal, but the
AC input indicator is off. The
UPS runs in battery mode.
The mains switch is OFF.
The input power cable is
not securely connected.
Turn on the mains switch.
Check the input power cable connection.
The UPS does not report
faults, but has no output
voltage.
The output power cable
is not securely
connected.
Check the output power cable connection.
The UPS does not start after
you press .
is not pressed long
enough.
Overload occurs.
Press for more than 5 seconds until
you hear a beep sound.
Disconnect all loads, and restart the UPS.
The Mains indicator is off.
The mains voltage or
frequency exceeds the
UPS input range.
Use a
multimeter to check that the input
voltage and frequency meet specifications.
The battery discharge time is
much less than the standard
time.
Batteries are not fully
charged.
The battery performance
deteriorates.
Charge batteries for more than 8 hours
when the mains is normal. Test the
discharge time again.
Contact local
Huawei technical support
to replace batteries.
Abnormal noises or smell is
generated in the UPS
cabinet.
The UPS is faulty.
Shut down the UPS immediately and cut
off the input power supply. Contact local
Huawei
technical support.
The battery indicator is
blinking yellow. The buzzer
buzzes 1 second and then
stops 1 second. The battery
capacity is insufficient. The
UPS is shutting down.
The remaining battery
capacity is insufficient.
The UPS is shutting
down, and the loads are
powering off.
Save load data immediately and power
off critical loads.
Connect UPS input terminals to the
backup AC power supply.
Troubleshooting

Alarm
Name
Alar
m ID
Alarm
Cause
ID
Repair Proposal
Abnorma
l mains
volt.
01
1
Possible cause: The mains voltage exceeds 280 V.
Measure: Check the mains input voltage, If the voltage exceeds
272 V, wait for the mains to recover.
2
•
Possible cause: The mains voltage is less than 80 V. Measure:
Check the mains input voltage, if the voltage is less than 88 V,
wait for the mains to recover.
•
Possible cause: The input fuse is blown.
Measure: Check the status of the input fuse.
3
•
Possible cause: The mains frequency is out of the 45–55 Hz
(mapping to 50 Hz) or 55–65 Hz (mapping to 60 Hz) range.
Measure: Check the mains input frequency. If the frequency is
out of the normal range, wait for the mains to recover.
•
Possible cause: The input fuse is blown.
Measure: Check the status of input fuses.
4
Possible cause: The mains voltage is frequently abnormal.
Measure: Check the mains input voltage. If the voltage is abnormal,
wait for the mains voltage to become normal and manually clear
the alarm.
Abnorma
l BPS volt.
0A
1
Possible cause: The bypass input voltage is abnormal.
Measure: Check whether the bypass input voltage is out of the
specified range. If the voltage is out of the specified range, change
the range setting or wait for the bypass input to recover.
2
Possible cause: The bypass frequency is out of the 45
–55 Hz
(mapping to 50 Hz) or 55
–65 Hz (mapping to 60 Hz) range.
Measure: Check the bypass input frequency. If the frequency is out
of the normal range, wait for the bypass power supply to recover.
Batt
.
reverse
14
1
Possible cause: The positive and negative battery terminals are
reversely connected.
Measure: Check the battery installation, and install batteries again.
No
battery
16
1
•
Possible cause: No batteries are connected.
Measure: Connect batteries.
•
Possible cause: The batteries are in poor contact.
Measure: Check the battery cable connection. If battery cables
are loose, tighten the cables.
18
1. For more alarm handling, see the UPS2000-A-(6 kVA-10 kVA) User Manual .
2. Clear automatically detected and manually cleared (ADMC) alarms as shown in the
figures below.
Alarm Handling

Alarm
Name
Alarm
ID
Alarm
Cause
ID
Repair Proposal
Bypass
mode
9E
1
•
Possible cause: The inverter is not started
Measure: Check whether other alarms are generated. If other
alarms are generated, handle these alarms according to the
handling methods.
•
Possible cause: The load exceeds the rated loading capacity
of the inverter.
Measure: If other alarms are not generated, manually start
the UPS.
•
Possible cause: The inverter is faulty.
Measure: Contact Huawei technical support.
Battery
mode
9F
1
•
Possible cause: The mains input is abnormal.
Measure: Check the mains input. If the mains input is
abnormal, wait for the mains to recover.
•
Possible cause: The battery self-check is in progress.
Measure: Check whether the battery self-
check is in progress.
•
Possible cause: The mains loading capacity is insufficient.
Measure: Lower the load or replace the UPS with a UPS with
a larger capacity.
Battery
overvoltage
19
1
•
Possible cause: The battery voltage reaches the alarm
threshold due to continuous charge.
Measure: When batteries are in charge mode, wait for 2
minutes and check whether the alarm is cleared.
•
Possible cause: The number of batteries configured is less
than the actual number of batteries.
Measure: Check whether the number of batteries is correctly
set.
Battery
overvoltage
protection
20
1
•
Possible cause: The number of batteries configured is less
than the actual number of batteries.
Measure: Check that the configured number of batteries is
consistent with the actual number.
•Possible cause: The actual number of batteries does not meet
requirements.
Measure: Check that the actual number of batteries meets
requirements.
•
Possible cause: The charger is abnormal.
Measure: Check that the charger voltage is normal when the
batteries are disconnected.
Battery low
voltage
1A
1
Possible cause: The mains is abnormal, and the batteries are
overdischarged
.
Measure: Connect to the mains in non
-battery test state.
Battery
maintenanc
e required
1D
1
•
Possible cause: The battery capacity is incorrectly configured.
Measure: Check that the configured battery capacity is
consistent with the actual battery capacity.
•
Possible cause: The battery loop cannot discharge currents
Measure: Check the battery cable connection and the status
of each battery.
•
Possible cause: The battery capacity is lower than normal.
Measure: Replace battery strings. If the alarm persists,
manually clear the alarm.
19