Huawei UPS5000-E Series User manual

1
Issue: 03
Part Number: 31507666
Date: 2019-06-28
UPS5000-E-(20 kVA-80 kVA)
Quick Guide (Integrated UPS, 208 V)
1Overview
Copyright © Huawei Technologies Co., Ltd. 2019. All rights reserved.
UPS5000-E-60K-LASBS
(1) AC transfer switch
(ATS)
(2) Lighting circuit breaker
(3) ATS handle
installation slot
(4) Air conditioner circuit
breaker
(5) IT load 2 circuit
breaker
(6) IT load 1 circuit breaker
(7)
UPS input circuit
breaker
(8)
UPS maintenance
bypass switch
(9)
CM
(10
) Bypass module
(11) Power modules
(12)
Power input indicator
(13)
MDU
(14) Power distribution
monitoring board
(15) UPS output
circuit breaker
UPS Model Number of
Modules
Number of
Redundant
Modules
Input
Switch
Type Weight Dimensions (H x
W x D)
UPS5000-E-60K-LASBS 4 1 ATS 480 kg 2000 mm x 600
mm x 1100 mm
UPS5000-E-80K-LABBS 4 0 MCCB
(1) Power input
indicator0
(2) Input circuit
breaker
(3) Lighting circuit
breaker
(4) Air conditioner
circuit breaker
(5) IT load 2 circuit
breaker
(6) IT load 1 circuit
breaker
(7)
UPS input circuit
breaker
(8) UPS maintenance
bypass switch
(9)
Control Module
(CM)
(10)
Bypass module
(11) Power modules
(12)
Monitor display
unit (MDU)
(13) Power distribution
monitoring board
(14)
UPS output
circuit breaker
UPS5000-E-80K-LABBS

2
1. Before installation, read the UPS5000-E-(20 kVA-80 kVA) User Manual (Integrated UPS, 208
V) to get familiar with UPS information and safety precautions.
2. Use insulated tools during installation and operation.
3. Only engineers certified by the manufacturer or its agents are allowed to perform UPS
installation and maintenance. Otherwise, personal injury or equipment damage may occur, and
the resulting UPS faults are beyond the warranty scope.
2Installing the UPS
1. Determine the position for installing the
cabinet. Mark mounting holes based on the
drawings.
2. Use a hammer drill to drill four holes for
installing expansion bolts and then install four
expansion bolts in the holes. Remove the bolt,
spring washer, and flat washer.
Secured Installation
4. If the castors of the UPS need to be lifted from
the ground, perform steps Step 1 to Step 2 in
"Non-Secured Installation".
3. Slide the cabinet on its castors to the installation
position.
5. Open the front and rear doors.
6. Insert four M12x115 expansion bolts into the
expansion bolt holes in the floor, and tighten
the expansion bolts.
Unit: mm

3
2. Check whether the bottom of the cabinet is
horizontal by using a level. If the cabinet is not
leveled, adjust the leveling feet.
Non-Secured Installation
1. Lower the four leveling feet at the bottom of the
cabinet by using a wrench until all the four
castors at the bottom hang in the air, the leveling
feet bear the whole cabinet weight, and the
integrated UPS height is 2000 mm.
1. Wrench an anchor bolt clockwise to elevate a cabinet, or wrench an anchor bolt anticlockwise
to lower it. The cabinet feet can be adjusted within a range of 0–8 mm.
2. To prevent cabinet tilting and damage, adjust all the feet at the four corners instead of one foot.
3. Use a measuring tape for measurement when leveling the cabinet to ensure that the height
between the cabinet top and the ground is 2000 + 3 mm.
4. Do not remove anchor bolts. Otherwise, you need to rework them for use.
Installing the UPS on an ESD Floor
Secure the support to the concrete floor using fasteners and ensure the upper surfaces of the
support are at the same level.
Installing a Support
1. Lift the UPS onto the support and align the mounting holes on the UPS with those on the support.
2. Level the UPS by adjusting the anchor bolts, as shown by (1) in the Figure.
Securing the Cabinet
1. Wrench an anchor bolt clockwise to elevate a cabinet, or wrench an anchor bolt anticlockwise to
lower it. The cabinet feet can be adjusted within a range of 0–8 mm.
2. To prevent cabinet tilting, adjust all the feet at the four corners instead of one foot.
3. Check that the vertical distance between the top of the cabinet and the ESD floor is 2000 + 3 mm.
4. Do not remove anchor bolts. Otherwise, you need to rework them for use.
(1) Anchor bolt
(2)
Fixing bolt
(3) Level
3. Insert four M12 bolt assemblies
equipped with spring washers,
flat washers, and insulation
coverings into the mounting
holes for the support and UPS.
Tighten the bolts, as shown by
(2) in the Figure.
•The figures are for reference
only. The actual product
appearance prevails.
•Find the bolts used in this
step in the fitting bag
delivered with the cabinet.
NOTE

4
3(Optional) Installing the Tail Frame
1. Use eight M5 tapping screws to secure the tail
frame accessories to the tail frame. as shown
in the following figure.
2. Use four M5 tapping screws to secure one
upper sealing plate to the tail frame, as shown
in the following figure.
3. Open the cabinet rear door, and remove the
rear door, hinges and the connecting kits, and
ground cable, as shown in the following figure.
4. Move the tail frame to the UPS rear door,
and adjust the anchor bolts of the tail frame
so that the fail frame top is flush with the
cabinet top, and secure it to the UPS using
eight M5 tapping screws, as shown in the
following figure.
There are two upper sealing
plates, and the one used in
this step has a gap.
The tail frame
side with anchor
bolts should face
the cabinet
bottom.
5. Install the cabinet rear door and accessories at the corresponding positions on the tail frame.

5
After installing the cabinet rear door, adjust tail frame anchor bolts and ensure that anchor bolts
touch the floor. Verify that ground cables are properly connected to the cabinet and cabinet rear
door.
When connecting the mains input power cable, strip the outer layer of the 5-wire cable, wrap
each wire in the stripped section using corrugated pipes which are available in the fittings
bag, and secure the corrugated pipes using insulation tape to prevent sliding.
4(Optional) Combining Cabinets
1. Open the front and rear doors. Wrench the anchor
bolts using an adjustable wrench to adjust the
cabinet height, as shown in the figure. Use a level
to level the cabinet.
5Connecting Cables
2. Remove the cabinet connecting kits from the
rack, as shown in the figure.
3. Secure the connecting kits in the connection
positions on the front door using screws, as
shown in the figure.
The figures are for reference only. The
actual product appearance prevails.
NOTE
5
4. Use the same method to secure the connecting kits in the connection positions on the rear door.
5Connecting Cables
5. Repeat the procedure to combine other cabinets.
1. Remove the screw from the supporting kit of the connecting kit to secure the connecting kit.
2. A UPS cabinet in the middle position has four connecting points on each of the front and rear
doors. An end UPS cabinet has two connecting points on each of the front and rear doors.
NOTE
When combining cabinets, ensure that: all
cabinet surfaces are at the same level.
NOTE

6
1. Remove the five rodent-proof meshes and
cable hole protection panels from the top of
the cabinet, as shown in the following figure.
1. The basic rule for routing cables is: from inside out and from bottom up.
2. You can drill holes in the removed rodent-proof mesh as required before reinstalling them on
the cabinet.
3. Connect ground cables to the UPS.
1. Before connecting cables, check that all UPS input switches are OFF.
2. Prepare terminals onsite. The length of the copper wire should be the same as that of the part
of the terminal that covers the conductor.
M12x45 (2 PCS)
46 N•m
2. Open the rear door, and remove the
insulation panels at the rear of the
cabinet.
Grounding for the UPS
with the ATS Input Grounding for the UPS
with the MCCB Input

7
5. Connect AC input power cables.
ATS Input
a. Connect two AC input power cables to input
terminals 1L1, 1L2, 1L3, 1N and 2L1, 2L2,
2L3, 2N on the UPS cabinet.
60 kVA cabinet:
(1)
Positioning hole
MCCB Input
Connect AC input power cables to input
terminals L1, L2, L3, and N on the UPS
cabinet.
M12x45 (4 PCS)
46 N•m
80 kVA cabinet:
Connect AC output power cables in this sequence: customer output power cables, N wires, and
then PE cables.
M12x45 (8 PCS)
46N·m
Grounding for the safety ground of the UPS
with the ATS input is the same as that of the
UPS with the MCCB input. Grounding for the
safety ground of the UPS with the ATS input
is used as an example. Connect the ground
cable to the floor ground bar or grounding
busbar.
b. Take out PC boards from the fitting bag and
install it based on the position of the
positioning hole.
6. Connect AC output power cables.

8
(1) IT and air conditioner
output power cables (2) Lighting output power cables
a. Connect output power cables to the
customer terminal bars in the UPS cabinet. b. Connect N cables and PE cables to the N bar
and PE bar on the left and right sides.
7. Connect battery cables to positive and negative battery terminals and neutral wires on the UPS
cabinet.
After cable connections, reinstall the
insulation isolation boards removed from the
rear of the cabinet.
•QF-L1 to QF-L3 are lighting terminals. 3QF1 to 3QF8 are air conditioner terminals. 1QF01 to
1QF13 and 2QF01 to 2QF13 are IT terminals.
•The number of cables in the figure is only for reference. The actual number of cables depends
on the output load.
M10x30 (6 PCS)
26 N•m

9
8. Route signal cables. Connect one end of the cable to the FE on the integrated UPS, and
connect the other end to any POE port on the smart ETH gateway. Bind cables to the cabinet.
The following figure shows cable routing inside the integrated UPS.
Smart ETH gateway
POE port
6Verifying the Installation
No.
Item
Acceptance Criteria
Result
1
Cable layout
Cables are routed properly and
meet engineering requirements.
□
Passed
□
Failed
2
Cable connections
Input and output power cables and
battery cables are securely
connected and spring washers are
flattened, prevent falling off and
safety accidents. Ensure that there
is no disconnection or potential risk.
□
Passed
□
Failed
3
Cable labels
Both ends of each cable are labeled.
Labels are easy to understand.
□
Passed
□
Failed
4
Distances between cable ties
Distances (recommended: 30 cm)
between cable ties are the same,
and no burr exists.
□
Passed
□
Failed
5
Ground cable connections
The ground cable is securely
connected to the equipment room
ground bar. Measure the resistance
between the UPS ground cable and
the equipment room ground bar,
which must be less than 1 ohm.
□
Passed
□
Failed
After signal cable connection is complete,
reinstall the removed cable hole protection
panels on the top of the cabinet.

10
NOTE
After connecting cables and checking cable connections, use sealing putty to fill in the gap
between the cables and the cabinet.
No.
Item
Acceptance Criteria
Result
6
Cable connections
Cables are properly connected according to
wiring diagrams.
□
Passed
□
Failed
7
Copper
busbar short circuit
Check that copper
busbars are open-
circuited using a
multimeteror an insulation
resistance tester.
□
Passed
□
Failed
8
Live wire and neutral wire
connections
Input and output live wires and neutral wires
are correctly connected. Mains input
terminals 1L1, 1L2, 1L3, and N, bypass
input terminals 2L1, 2L2, 2L3, and N, and
output terminals U, V, W, and N are properly
connected.
□
Passed
□
Failed
9
Input and output live wire phase
sequences
Mains and bypass input and output live
wires are connected in a correct sequence;
in a parallel system, mains and bypass input
and output live wires are connected in the
same sequence for each UPS.
□
Passed
□
Failed
10
Battery cable connections
Check that the voltages on the positive and
negative battery terminals and battery N are
correct using a
multimeter.
□
Passed
□
Failed
11
Serial port connections (security
protection mechanism
supported)
Signal cables are connected properly and
securely.
□
Passed
□
Failed
12
Operating environment
Clean the conductive dust and other
sundries inside and outside the cabinet.
□
Passed
□
Failed
13
Surge protection switch state
The surge protection switch is turned on.
□
Passed
□
Failed
7ATS Commissioning Before System Power-On
•Only trained and qualified electrical engineers are allowed to perform power-on and
commissioning.
•Before power-on and commissioning, verify the installation according to this document and
local safety regulations.
•Before power-on and commissioning, remove metal articles such as watches and bracelets.
During operations, use insulated tools, and do not touch two electric bodies with different
currents.
•During power-on and commissioning, check that the status of the related unit or component
meets requirements before turning on any switch. When you are performing operations, attach
the label "Do not turn on any switch. Operations in progress." to the power distribution device to
prevent others from performing operations.
•During power-on and commissioning, shut down the device immediately if any fault is detected.
Rectify the fault before proceeding with the commissioning.
Check Before Commissioning
7.1

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No. Item Result
1 All circuit breakers are OFF. □Yes □No
2Short circuit does not exist between phases of the AC input or between
positive and negative battery terminals. Check this item by using a multimeter. □Yes □No
3Positive and negative battery terminals are connected correctly. Check this
item by viewing the color or label of the battery input cable. □Yes □No
4 The AC input voltage is within the rated input range. □Yes □No
5 The battery input voltage is within the rated range. □Yes □No
Commissioning
7.2
1. Only electrical professionals are allowed to install and maintain the ATS.
2. The generator can be connected only to power supply 2 (LN2)-switch II. If the generator is
configured, power supply 2 (LN2)-switch II cannot be set as the preferred power supply.
3. Do not open any cover of the ATS. Even if the power supply is disconnected, hazardous
external control voltage may still exist inside the product.
4. Do not adjust the control cable when the ATS or external control cable is electrified.
5. Do not replace the fuse (F1) with another model. Only fuses labeled with the same model can
be used as replacements.
6. When the ATS is connected to the electric loop, do not attempt to install or maintain the device.
7. Before performing maintenance tasks, ensure that the power supply to the switch is
disconnected.
1. Before power-on, operate the handle to switch on and off the ATS for one to three times.
Ensure that the primary and secondary contacts of the ATS work smoothly.
2. Before power-on, check that the phase sequence of the two power supplies for the ATS is
correct using a phase sequence meter.
NOTE
(1) OTM_C8D controller
(8D controller for short)
(2) Motor/Manual
selection lever
(3)
Motor operator
(4) Handle locking
latch
(5) Manual handle
(6) Handle buckle
(7) Position for auxiliary
contacts
(8) Transfer switch
(9) Operator
(10) Alarm ID
description

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1. Switch on the power switch for the ATS electric operation mechanism (Q1 and Q2 in the lower
left side at the rear of the cabinet) to power the ATS electric operation mechanism.
2. Check whether the controller has alarms. If an alarm exists, rectify the fault first.
View the alarm ID on the controller LCD. If LN1 and
LN2 power indicators are hollow, there is an alarm.
Locate the fault based on the alarm ID and the alarm ID
reference list on the 8D controller, and rectify the fault.
(1) LN1
power status (2) LN2 power status
(3) LN1
power alarm ID (4) LN2 power alarm ID
3. Press the locking latch on the ATS panel,
pull out the handle, and insert it into the slot.
The automatic operation will be disabled after
the handle is inserted into the switch panel.
4. Set Motor/Manual selection lever to the
Motor (M) position.
Perform system commissioning and power-on strictly according to the system manual and ATS
instructions. For any changes in operations and parameters, consult Huawei engineers. Otherwise,
system commissioning or power-on may fail, or even the cabinet is damaged.
5. Modify configurations of the 8D controller.
a. Check whether the Power
LED and Auto LED
indicators are on and
whether the controller is in
button mode. If the Auto
LED indicator is off, the
controller is in button mode;
if the Auto LED is on, press
the Auto button once to turn
the Auto LED off and the
controller enters the button
mode.
You are not allowed to modify the ATS configurations if not authorized by Huawei engineers.

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When the controller is in button mode, do not simultaneously press and hold down the I, II, and
O buttons on the controller panel. Ensure that the interval between two commands is 5s at least.
If another command is issued before the previous one is executed, the protection fuse (F1)
under the electric operation mechanism may be blown.
b. Press Enter and enter the password 0001 to log in to the main menu, then you can modify the
configurations in accordance with the user manual delivered with the ATS.
6. Set the 8D controller to
Auto mode.
Check whether the Power
LED and Auto LED
indicators are on. If the Auto
LED indicator is on, the
controller is in auto mode; if
the Auto LED is off, press
the Auto button once and
the controller enters the
auto mode.
1. To manually operate the ATS, set the Motor/Manual selection lever to the Manual (Man.)
position and insert the handle.
2. For details about the ATS, see the user manual delivered with the ATS.
NOTE
8Powering On and Starting the UPS
1. Before you power on the UPS, check that the UPS has passed all check items described in
Section 6 " Verifying the Installation".
2. Measure the voltage and frequency at the UPS external input power distribution switch. The line
voltage range is 187–253 V AC and the frequency range is 40–70 Hz.
3. Before you power on the UPS, check that all internal and external switches are OFF, and the
ready switches on the bypass module and power module are in locked state.
4. Before you power on the UPS, remove the ATS handle and insert it into the ATS handle slot.
Bypass module ready switch Power module ready switch

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Powering On the UPS
8.1
Setting Key Parameters
8.2
1. After you set parameters on the Settings Wizard screen, the Bypass mode and No battery
alarms are displayed on the LCD.
2. The common buttons on the Settings Wizard screen are described as follows: Tap Previous to
return to the upper-level screen. Tap Next to go to the next screen. Tap Cancel to exit the
Settings Wizard screen.
NOTE
Switch on the UPS input circuit breaker Q1.
The UPS works in normal mode and starts
initialization. The LCD displays the Huawei
logo and an initialization progress bar.
Start
Check that the UPS has passed all check
items described in chapter 6 "Verifying the
Installation".
Is MCCB
input used?
Yes
Switch on the MCCB.
No: ATS input
is used. Commission the ATS by following the
instructions in chapter 7 "ATS Commissioning
Before System Power-On".
•Before powering on the UPS, check that the
ATS is in electric mode (ATS input).
•Before powering on the UPS, check the two
indicators. When the ATS is in manual mode,
check that the switch is in manual mode and
that the UPS work line matches the handle
line.
1. System parameter settings determine normal UPS operation. Note the following:
•Set Single after confirmation. Otherwise, the UPS may not run properly.
•Output voltage level refers to the line voltage level. Set it based on the site requirements.
•Set Output frequency correctly; otherwise, loads may not work properly.
2. Battery parameter settings have great impact on battery maintenance, battery lifespan, and UPS
discharge time. When you set battery parameters, note the following:
•Set Battery capacity after repeated confirmation. An incorrect setting reduces the charging
power.
•A high or low charging power tends to shorten the battery lifespan, or even damages batteries.
If you do not know how to confirm the battery capacity, contact Huawei technical support.
•Number of cells indicates the number of 2 V DC cells connected to the UPS. Each cell is 2 V.
For example, if a battery provides a voltage of 12 V, it is regarded as six cells. If each battery
provides a voltage of 2 V, the number of cells is the same as the number of batteries. The
following table lists examples of setting battery parameters. Number of cells affects the charge
voltage and discharge time. Incorrect setting will cause a high or low charge voltage, which
greatly shortens the battery lifespan. In addition, the UPS may shut down before the
discharging is completed, which may result in data backup failure.

15
Battery
Specifications
Number of
Batteries
Number of Battery
Strings
Number of Cells
in a String
Battery Capacity
40 Ah/12 V 40 batteries
in series
Three battery strings
connected in parallel 40 x 6 = 240 40 Ah + 40 Ah + 40 Ah = 120 Ah
100 Ah/12 V 32 batteries
in series Two battery strings connected in parallel 32 x 6 = 192 100 Ah + 100 Ah = 200 Ah
1. After the LCD starts properly, perform the following operations:
•If the UPS is starting for the first time, set the language, date and time, network parameters,
and system parameters on the Settings Wizard screen.
•If this is not the first startup, retain the previous settings.
No.
Item
Remarks
01
Language
Various languages are available, such as Chinese and English.
02
Date and Time
Select the date format and so on.
03
Network
Param.
Set
IP address allocation, IP address, Subnet mask, and Gateway.
04
System
Param.
Select
Single (default value) or Parallel.
Set the voltage level, output frequency, battery capacity, and the number
of batteries.
2. If no exception alarm is reported on the monitoring page after you specify settings on the
Settings Wizard screen, perform subsequent steps. If exception alarms are reported on the
monitoring page, clear all the alarms.
3. Check that the bypass input is normal and the system has transferred to bypass mode. You can
confirm this by viewing the system running diagram on the LCD.
4. Start the inverter.
•On the main screen, tap Common Functions. Tap Inv. ON.
•If you have not logged in, enter a user name and password, and tap on the login screen
displayed.
Set IP address allocation to Automatic. IP address, Subnet mask, and Gateway do not need
to be set. They are automatically assigned by the ECC.
Default User
LCD Preset Password
Web Preset Password
admin (administrator)
000001
Changeme
operator (common user)
000001
Changeme
You need to change the LCD password and Web password respectively to ensure access security.
NOTE
5. In the displayed dialog box, tap Yes to start the inverter.
6. Ensure that the UPS transfers to normal mode. View the system running diagram to check that
the Bypass mode alarm disappears on the LCD. Check the UPS three-phase output voltage
and frequency by viewing the AC Output on the LCD. Use a multimeter to measure the three-
phase output voltage and frequency. The three-phase output voltage should be 208 V, 220 V,
or 230 V, and the frequency should be 50 Hz or 60 Hz.
7. Check that the actual battery capacity and number of cells are consistent with the settings on
the LCD. (A cell is a 2 V battery. For 12 V batteries, the number of cells equals the number of
batteries multiplied by 6. For 2 V batteries, the number of cells equals the number of batteries.)
Use a multimeter to check that the sum of the absolute voltage of the negative battery string
and the voltage of the positive battery string is greater than a certain value (2 x Number of cells)
to ensure that the battery strings are connected properly.
8. After checking that the battery strings are properly connected, close the battery circuit breaker
(if there are multiple battery strings, close the circuit breaker for each battery string and then the
general circuit breaker between battery strings and the UPS).

16
9Shutting Down the UPS
After the inverter is shut down, the system transfers to the bypass mode if the system bypass
operates properly or provides no output for loads if the system bypass becomes faulty. Before
you shut down the UPS, ensure that the loads are disconnected to meet any power failure
conditions.
1. On the main screen, tap Common Functions. Tap Inv. OFF.
2. If you have not logged in, enter a user name and password, and tap on the login screen
displayed.
3. In the displayed dialog box, tap Yes to shut down the inverter.
After the inverter shuts down, if the bypass is normal, the UPS transfers to bypass mode; if the
bypass is abnormal, the UPS supplies no power, and the loads shut down.
Shutting Down the Inverter to Transfer a Single UPS to Bypass Mode
9.1
Turn off the UPS output circuit breaker Q3.
Turn off the battery string switch. If there are multiple battery strings,
turn off the general switch between battery strings and the UPS
and then the switch for each battery string.
Turn off the UPS input circuit breaker Q1.
Turn off the UPS input circuit breaker (circuit breaker input), or
disconnect the mains from the ATS (ATS input).
Powering Off a Single UPS
9.2
9. Turn on UPS output circuit breaker Q3 to supply power to loads.

17
10 Exporting Alarms to a USB Flash Drive
11 Appendix
System Configuration Attributes and Values
Item
Value
Description
Rated
operating
voltage
208 V/120 V; 220 V/127 V; 230 V/132 V The default value is 208 V/120 V. Set the
parameter based on site requirements.
Rated
frequency 50 Hz; 60 Hz The default value is 60 Hz. Set the parameter based on site requirements.
Number of
Phases
LN1
Single phase; three-phase four-wire;
three-phase three-wire The default value is three-phase four- wire. Set the parameter based on site
requirements.
Number of
Phases
LN2
Single phase; three-phase four-wire;
three-phase three-wire The default value is three-phase four- wire. Set the parameter based on site
requirements.
Secondary
load Not Used; Opening Only; Opening And Closing The default value is Not Used. Set the parameter based on site requirements.
Generator
Usage No Generator; Generator In Use The default value is No generator. Set the parameter based on site
requirements.
Line
Priority Line 1–Switch I; Line 2–Switch II; No Priority The default value is Line 1–Switch I. Set the parameter based on site
requirements.

18
System Configuration Attributes and Values
Item
Value
Description
Voltage
Thresholds Volt Threshold Min LN1 –30% to –5% The step increase is ±1%. The default settings are –10% for LN1
and LN2. Set the parameter
based on site requirements.
Volt Threshold
Min LN2 –30% to –5%
Volt Threshold
Max LN1 +5% to +30% The step increase is ±1%. The default settings are +10% for LN1
and LN2. Set the parameter
based on site requirements.
Volt Threshold
Max LN2 +5% to +30%
Frequency
Thresholds Freq Threshold Min LN1 –10% to –1% The step increase is ±1%. The default settings are –5% for LN1
and LN2. Set the parameter
based on site requirements.
Freq Threshold
Min LN2 –10% to –1%
Freq Threshold
Max LN1 +1% to +10% The step increase is ±1%. The default settings are +5% for LN1
and LN2. Set the parameter
based on site requirements.
Freq Threshold
Max LN2 +1% to +10%
Modbus •Modbus address
•Modbus baud rate
•Modbus stop bit
•Modbus parity check
•Local / Remote
Set the parameter based on site
requirements.
Language Chinese; English; Deutsch;
Francais; Itatiano; Espanol;
Suomi; Russian
Set the parameter based on site
requirements.
PDC Silk Screen Description
Symbol
Name
Symbol
Name
QF
Circuit breaker
QFS
SPD circuit breaker
FS
Surge protective device (SPD)
FU
Fuse
ATS
Automatic transfer switch
MCCB
Molded case circuit breaker
Introduction to BSC Connection
In a dual-bus (2N) system, connect BSC cables to the master and slave systems, as shown in the
following figure.
The BSC port is used in a dual-bus system to synchronize output frequencies and phases
between UPS systems, ensuring that two buses can switch with each other.

19
Setting BSC Mode
1. Set the master BSC system. On the main menu of the LCDs of the UPS, choose System Info >
Settings. Tap Advanced Param. on the Settings screen. On the displayed screen, set BSC
mode to BSC master mode.
2. Set the slave BSC system. On the main menu of the LCDs of the UPS, choose System Info >
Settings. Tap Advanced Param. on the Settings screen. On the displayed screen, set BSC
mode to BSC slave mode.
3. If no alarm is generated after settings, the UPS runs properly.
•The default value of BSC mode is Non-BSC. Set it to BSC mode when the system is a dual-
bus system.
•The dual-bus system consists of one master and one slave BSC system. You can specify one
master and one slave BSC system during initial startup and change the settings under the
guidance of maintenance engineers. Set the master and slave BSC systems to master and
slave BSC modes respectively.
•Ensure that the BSC signal cable between the master and slave BSC systems is properly
connected and that BSC-related hardware is properly installed.
NOTE

20
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Shenzhen 518129 People's Republic of China
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