Delta Ultron DPS-400K User manual

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DPS Series, Three Phase
300/ 400/ 500 kVA
User Manual
Delta UPS - Ultron Family

II
Ultron DPS Series
Save This Manual
This manual contains important instructions and warnings that you should follow
during the installation, operation, storage and maintenance of this product. Failure
to heed these instructions and warnings will void the warranty.
Copyright © 2016 by Delta Electronics Inc. All Rights Reserved. All rights of this User Manual
(“Manual”), including but not limited to the contents, information, and figures are solely owned
and reserved by Delta Electronics Inc. (“Delta”). The Manual can only be applied to the operation
or the use of this product. Any disposition, duplication, dissemination, reproduction, modification,
translation, extraction, or usage of this Manual in whole or in part is prohibited without the prior
written permission of Delta. Given that Delta will continuously improve and develop the product,
changes may be made to the information in this Manual at any time without obligation to notify
any person of such revision or changes. Delta will make all possible efforts to secure the accuracy
and the integrity of this Manual. Delta disclaims any kinds or forms of warranty, guarantee,
or undertaking, either expressly or implicitly, including but not limited to the completeness,
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Manual.

Table of Contents
III
Table of Contents
1. Important Safety Instructions---------------------------------------------- 1-1
1.1 Installation Warnings---------------------------------------------------------------------- 1-2
1.2 Connection Warnings--------------------------------------------------------------------- 1-2
1.3 Usage Warnings --------------------------------------------------------------------------- 1-3
1.4 Storage Warnings ------------------------------------------------------------------------- 1-4
1.5 Glossary of Symbols---------------------------------------------------------------------- 1-5
1.6 Standard Compliance -------------------------------------------------------------------- 1-6
2. Introduction ---------------------------------------------------------------------- 2-1
2.1 General Overview ------------------------------------------------------------------------- 2-2
2.2 Package Inspection----------------------------------------------------------------------- 2-2
2.3 Functions & Features--------------------------------------------------------------------- 2-3
2.4 Exterior--------------------------------------------------------------------------------------- 2-5
2.4.1 Dimensions----------------------------------------------------------------------- 2-5
2.4.2 Other Views ---------------------------------------------------------------------- 2-6
2.5 Control Panel------------------------------------------------------------------------------- 2-7
2.5.1 LED Indicators------------------------------------------------------------------- 2-7
2.5.2 ON, OFF, and EPO Buttons-------------------------------------------------- 2-8
2.5.3 LCD Display---------------------------------------------------------------------- 2-8
2.5.4 Function Keys-------------------------------------------------------------------- 2-9
2.6 Internal Mechanisms---------------------------------------------------------------------- 2-9
2.6.1 Input & Output Switches------------------------------------------------------- 2-9
2.6.2 Auxiliary Power Fuse and AC Outlet Fuse-------------------------------2-10
2.6.3 Wiring Terminal Block --------------------------------------------------------2-11
2.6.4 Communication Interfaces---------------------------------------------------2-13
2.7 Fans------------------------------------------------------------------------------------------2-14
3. Operation Modes --------------------------------------------------------------- 3-1
3.1 Normal Mode (Single)-------------------------------------------------------------------- 3-2
3.2 Battery Mode (Single) ------------------------------------------------------------------- 3-3

IV
Ultron DPS Series
3.3 Bypass Mode (Single) ------------------------------------------------------------------- 3-4
3.4 Manual Bypass Mode (Single) -------------------------------------------------------- 3-5
3.5 ECO Mode ---------------------------------------------------------------------------------- 3-6
3.6 Normal Mode (Parallel) ------------------------------------------------------------------ 3-7
3.7 Battery Mode (Parallel) ------------------------------------------------------------------ 3-8
3.8 Bypass Mode (Parallel) ----------------------------------------------------------------- 3-9
3.9 Manual Bypass Mode (Parallel) ------------------------------------------------------3-10
3.10 Common Battery--------------------------------------------------------------------------3-11
4. Communication Interfaces-------------------------------------------------- 4-1
4.1 Smart Slots---------------------------------------------------------------------------------- 4-2
4.2 RS-232 Port & USB Port----------------------------------------------------------------- 4-3
4.3 Dry Contacts-------------------------------------------------------------------------------- 4-3
4.4 Parallel Ports ------------------------------------------------------------------------------- 4-5
4.5 Parallel Switch------------------------------------------------------------------------------ 4-5
4.6 Output Dry Contacts---------------------------------------------------------------------- 4-5
5. Installation and Wiring ------------------------------------------------------- 5-1
5.1 Before Installation ------------------------------------------------------------------------- 5-2
5.2 Installation Environment ---------------------------------------------------------------- 5-2
5.3 Fixing the UPS ----------------------------------------------------------------------------- 5-4
5.4 Wiring ---------------------------------------------------------------------------------------- 5-8
5.4.1 Pre-wiring Warnings------------------------------------------------------------ 5-8
 6LQJOH,QSXW'XDO,QSXW0RGL¿FDWLRQ--------------------------------------- 5-9
5.4.3 Single Unit Wiring--------------------------------------------------------------5-11
5.4.4 Parallel Unit Wiring ------------------------------------------------------------5-14
5.5 External Battery Cabinet Connection Warnings ----------------------------------5-17
6. Top Cable Entry Cabinet ----------------------------------------------------- 6-1
6.1 Exterior & Dimensions-------------------------------------------------------------------- 6-2
6.2 Functions ------------------------------------------------------------------------------------ 6-2
6.3 Important Safety Instructions----------------------------------------------------------- 6-2

Table of Contents
V
6.4 Package Inspection ---------------------------------------------------------------------- 6-3
6.5 Installation----------------------------------------------------------------------------------- 6-4
6.6 Wiring----------------------------------------------------------------------------------------- 6-9
7. UPS Operation------------------------------------------------------------------- 7-1
7.1 Single Unit Operation Procedures----------------------------------------------------- 7-2
7.1.1 Normal Mode Start-up Procedures (Single)------------------------------ 7-2
7.1.2 Battery Mode Start-up Procedures (Single)------------------------------ 7-4
7.1.3 Bypass Mode Start-up Procedures (Single) ----------------------------- 7-6
7.1.4 Manual Bypass Mode Start-up Procedures (Single Unit)------------- 7-7
7.1.5 Normal Mode Turn-off Procedures (Single) ----------------------------7-10
7.1.6 Battery Mode Turn-off Procedures (Single) -----------------------------7-11
7.1.7 Bypass Mode Turn-off Procedures (Single)-----------------------------7-12
7.1.8 Manual Bypass Mode Turn-off Procedure (Single)--------------------7-12
7.2 Parallel Units Operation Procedures ------------------------------------------------7-13
7.2.1 Normal Mode Start-up Procedures (Parallel) ---------------------------7-15
7.2.2 Battery Mode Start-up Procedures (Parallel) ---------------------------7-17
7.2.3 Bypass Mode Start-up Procedures (Parallel)---------------------------7-18
7.2.4 Manual Bypass Mode Start-up Procedures (Parallel) ----------------7-19
7.2.5 Normal Mode Turn-off Procedures (Parallel) ---------------------------7-24
7.2.6 Battery Mode Turn-off Procedures (Parallel)----------------------------7-27
7.2.7 Bypass Mode Turn-off Procedures (Parallel) ---------------------------7-29
7.2.8 Manual Bypass Mode Turn-off Procedure (Parallel) -----------------7-29
8. LCD Display & Settings ------------------------------------------------------ 8-1
8.1 LCD Display Hierarchy------------------------------------------------------------------- 8-2
8.2 LCD Display & Function Keys---------------------------------------------------------- 8-3
8.3 Password Entry ---------------------------------------------------------------------------- 8-4
8.4 Main Screen -------------------------------------------------------------------------------- 8-5
8.5 Main Menu ---------------------------------------------------------------------------------- 8-8
8.6 Check System Readings ---------------------------------------------------------------- 8-9
 836&RQ¿JXUDWLRQV ----------------------------------------------------------------------8-10

VI
Ultron DPS Series
8.7.1 Bypass setup--------------------------------------------------------------------8-10
8.7.2 Output Setup--------------------------------------------------------------------8-10
8.7.3 Battery Setup--------------------------------------------------------------------8-11
8.7.4 Charger Setup ------------------------------------------------------------------8-12
8.7.5 Parallel Setup-------------------------------------------------------------------8-13
8.7.6 Test, Buzzer and LED Setup, and Module Reset----------------------8-14
8.7.7 Local Setup----------------------------------------------------------------------8-15
8.7.8 Dust Filter Setup ---------------------------------------------------------------8-16
8.8 System Maintenance --------------------------------------------------------------------8-17
8.8.1 Check/ Clear Event Log------------------------------------------------------8-17
8.8.2 Check/ Clear Statistics--------------------------------------------------------8-18
8.8.3 Check/ Upgrade Firmware---------------------------------------------------8-19
8.8.4 Force Bypass to Inverter-----------------------------------------------------8-20
8.8.5 Others-----------------------------------------------------------------------------8-21
9. Optional Accessories--------------------------------------------------------- 9-1
10. Maintenance---------------------------------------------------------------------10-1
11. Troubleshooting ---------------------------------------------------------------11-1
$SSHQGL[7HFKQLFDO6SHFL¿FDWLRQV----------------------------------------A1-1
Appendix 2:Warranty-------------------------------------------------------------- A2-1

1-1
1Important Safety Instructions
1Important Safety
Instructions
1.1 Installation Warnings
1.2 Connection Warnings
1.3 Usage Warnings
1.4 Storage Warnings
1.5 Glossary of Symbols
1.6 Standard Compliance

1-2
Ultron DPS Series
1.1 Installation Warnings
yThis is a three-phase four-wire on-line UPS. It can be used for commercial and indus-
trial applications.
yThe UPS has two types, with or without a Top Cable Entry Cabinet. For information
about the Top Cable Entry Cabinet, please refer to 6. Top Cable Entry Cabinet.
yInstall the UPS in a well-ventilated indoor area, away from excess moisture, heat, dust,
ÀDPPDEOHJDVRUH[SORVLYHV
yLeave adequate space around all sides of the UPS for proper ventilation and mainte-
nance. Please refer to 5.2 Installation Environment.
yOnly authorized Delta engineers or service personnel can perform installation and
maintenance. If you want to install the UPS by yourself, please install it under the su-
pervision of authorized Delta engineers or service personnel
yFollow the IEC 60364-4-42 standard to install the UPS.
1.2 Connection Warnings
yBefore applying electrical power to the UPS, make sure the UPS is grounded to avoid a
possible risk of current leakage.
yThe installation of protective devices is highly recommended when the UPS is connect-
ed to power sources and critical loads.
yThe protective devices connecting to the UPS must be installed near the UPS and must
be easily accessible for operation.
yProtective Devices:
1. It is suggested that you install appropriate protective devices between the UPS and
input AC power. The protective devices should have the functions of over current
protection, short circuit protection (300 kVA: cut-off current less than 9kA; 400 kVA:
cut-off current less than 12kA; 500 kVA: cut-off current less than 15kA), insulating
protection and shunt trip feature.
2. When you select the protective devices, please take each power cable’s current
capacity and the system’s overload capacity (please refer to Appendix 1: Technical
Specifications) into consideration. Besides, the short-circuit capacity of the
upstream protective devices must be equal to or higher than the capacity of the
UPS’s input protective devices.
3. For single input, when the UPS has abnormalities and input short current reaches
20kA, the UPS’s internal semi-conductor fast-acting fuses need 8ms ~10ms to be
fused. Thus, the upstream protective devices’ reaction time should be more than
10ms to let the UPS’s internal protective devices block breakdown and let the UPS
transfer to bypass mode.

1-3
1Important Safety Instructions
4. For dual input, please install the protective devices between the UPS and the main
AC source, and also install the protective devices between the UPS and the bypass
source.
1.3 Usage Warnings
yThe UPS can be used to power computers and associated peripheral devices, such as
monitors, modems, cartridge tape drives, external hard drives, etc. If you want to con-
nect inductive or capacitive loads to the UPS, it needs derating. Please contact Delta
service personnel for derating information.
yThe external slits and openings in the UPS are provided for ventilation. To ensure reli-
able operation of the UPS and to protect the UPS from overheating, these slits and
openings must not be blocked or covered. Do not insert any object into the slits and
openings that may hinder ventilation.
yBefore usage, you must allow the UPS to adjust to room temperature (20°C~25°C) for
at least one hour to avoid moisture condensing inside the UPS.
yDo not put beverages on the UPS, battery cabinet or any other accessory associated
with the UPS.
yDo not open or remove the cover of the UPS to avoid high voltage electric shock. Only
authorized Delta engineers or service personnel can do so for installation or mainte-
nance. If you want to open or remove the cover, do it only under the supervision of au-
thorized Delta engineers or service personnel.
yIt is strictly forbidden to connect the UPS to the following loads:
1. Regenerative loads
 $V\PPHWULFDOORDGVH[KDOIZDYHUHFWL¿HU
yIf the UPS is supplied by a source whose neutral is grounded, the backfeed protective
device installed as UPS input protection must be a 3-pole type. If the UPS is supplied
by a source whose neutral is not grounded, the backfeed protective device installed as
UPS input protection must be a 4-pole type.
yThe recommended electrical rating of the backfeed protective device is:
300kVA 400kVA 500kVA
690V/ 630A 690V/ 800A 690V/ 1000A
yThe risk of dangerous high voltage is possible when batteries are still connected to the
UPS even though the UPS is disconnected from AC power sources. Before mainte-
nance, please turn off the external battery cabinet’s circuit breaker to cut off the battery
power from the UPS.

1-4
Ultron DPS Series
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yDo not open or damage the battery or batteries. The released electrolyte is harmful to
the skin and eyes and may be toxic.
yThe UPS is electronic equipment that runs 24 hours continuously. To ensure its normal
life-time, regular maintenance of the UPS and batteries is of vital importance and nec-
essary.
ySome components like batteries, power capacitors, and fans will become worn-out due
to long-term usage, and this will increase the risk of UPS failure. To replace and main-
tain the components, please contact Delta customer service department.
yA battery can present a risk of electric shock and high short-circuit current. The follow-
ing precautions should be observed before replacement of batteries:
1. Remove watches, rings, or other metal objects.
2. Use tools with insulated handles.
3. Wear insulating gloves and boots.
4. Do not lay tools or metal parts on the top of batteries.
5. Disconnect the charging source prior to connecting or disconnecting the batteries’
terminals.
yYou must contact Delta customer service department if either of the following events oc-
cur:
1. Liquid is poured or splashed on the UPS.
2. The UPS does not run normally after carefully following the instructions in this User
Manual.
NOTE: If you use the UPS in an area that generates or incurs dust, you should
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1.4 Storage Warnings
yUse the original packing material to pack the UPS to prevent any possible damage from
rodents.
yIf the UPS needs to be stored prior to installation, it should be placed in a dry indoor
area. The allowable storage temperature is between -20°C ~ 70°C and relative humidity
is below 95%.

1-5
1Important Safety Instructions
1.5 Glossary of Symbols
No. Symbol Description
1RR-phase
2SS-phase
3TT-phase
4NNeutral
5Grounding (Protective earthing conductor)
6Bonded to ground
7Positive battery terminal
8Negative battery terminal
9ON button
10 OFF button
11
EPO
EPO button
12 Main AC source LED
13 Bypass AC source LED
14 Inverter Start-up LED
15 Inverter Power Supply LED
16 Bypass Power Supply LED
17 Battery Power Supply LED
18 Output Switch LED
19 Fault LED
20 Battery low
21 Battery normal
22 DC to AC conversion
23 AC to DC conversion
24 DC to DC conversion
25
BYPA.
Bypass AC source
26
MAIN
Main AC source
27 Output

1-6
Ultron DPS Series
No. Symbol Description
28 Input Switch/ Bypass Switch/ Manual Bypass Switch/ Output
Switch is in the OFF position.
29 Static Switch is in the OFF position.
30 Input Switch/ Bypass Switch/ Manual Bypass Switch/ Output
Switch/ Static Switch is in the ON position.
31 Parallel cable is abnormal.
32 Parallel cable connected.
33 Bypass frequency unstable.
34 Battery test cannot be executed.
35 Cursor
36 When the symbol changes to the symbol , it means
that you can change your selected item’s setting.
37 !Flashes when an alarm/ event occurs.
38 Goes back to previous screen or cancels current selection.
39 Moves up.
40 Moves down.
41 Moves left.
42 Moves right.
43 Increases number.
44 Decreases number.
45 &RQ¿UPVVHOHFWLRQ
1.6 Standard Compliance
yEN 62040-1
yEN 62040-2 C3
yIEC 61000-4-2 Level 4
yIEC 61000-4-3 Level 3
yIEC 61000-4-4 Level 4
yIEC 61000-4-5 Level 4
yIEC 61000-4-6

2-1
2Introduction
2Introduction
2.1 General Overview
2.2 Package Inspection
2.3 Functions & Features
2.4 Exterior
2.5 Control Panel
2.6 Internal Mechanisms
2.7 Fans

2-2
Ultron DPS Series
2.1 General Overview
The DPS series UPS, a three-phase four-wire on-line uninterruptible power supply, is a
dedicated design for large scale power systems such as data centers, communication
systems, network rooms, emergency systems and factory facilities. The unit adopts
advanced IGBT technology to provide perfect, clean, pure sine waves and high-quality
RXWSXWSRZHUWRWKHFULWLFDOORDGVFRQQHFWHG,WIHDWXUHVKLJKHI¿FLHQF\ORZKHDWJHQHUDWLRQ
low noise, and high reliability.
Using the RS-232 port, you can connect the UPS to a PC to monitor relevant issues. With
the installation of the included software CD-UPSentry 2012, you can monitor several UPSs
placed in a computer room or a factory to facilitate centralized control. Besides, you can
parallel at maximum eight UPS units without using any external parallel card to increase the
system capacity and redundancy and enhance the unit’s availability and reliability.
2.2 Package Inspection
yExternal
During UPS transportation, some unpredictable situations might occur. It is recom-
mended that you inspect the UPS exterior packaging. If you notice any damage, please
immediately contact the dealer from whom you purchased the unit.
yInternal
1. Check the rating label attached to the UPS and make sure the device No. and
capacity match what you ordered.
2. Examine if any parts are loose or damaged.
3. The UPS package contains the following items. Please check if any items are
missing.
C x 2
A x 2
B x 2
1 2 34
567
8 9
10
11

2-3
2Introduction
No. Item Quantity
1UPS (Without Top Cable Entry Cabinet) 1 pc
2User Manual 1 pc
3Software CD-UPSentry 2012 1 pc
4Key 1 pc (two copies placed
inside the UPS cabinet)
5USB Cable 1 pc
6RS-232 Cable 1 pc (1.8-meter long)
7Parallel Cable 1 pc (5-meter long)
8Rodent Shield A
Rodent Shield B
Rodent Shield C
2 pcs
2 pcs
2 pcs
9REPO Dry Contact Terminal Block 1 set (2-Pin)
10
Input Dry Contact Terminal Block 1 set (4-Pin)
11
Output Dry Contact Terminal Block 1 set (12-Pin)
4. If there is any damage or anything missing, please immediately contact the dealer
from whom you purchased the unit.
5. If the UPS needs to be returned, carefully repack the UPS and all of the accessories
using the original packing material that came with the unit.
NOTE: If the UPS that you purchased includes the Top Cable Entry Cabinet,
please refer to 6. Top Cable Entry Cabinet for the package list.
2.3 Functions & Features
yTrue on-line double-conversion design UPS adopts DSP chip and IGBT technology to
protect your sensitive electronic equipment from power interruption.
yInput power factor > 0.99 and input THDi < 3% save on installation cost and diminish
power contamination.
y(I¿FLHQF\!VDYHVRQRSHUDWLRQFRVW
yWide AC input voltage range (140Vac~276Vac) reduces frequent transfer from normal
mode to battery mode to save battery consumption and prolong battery life.
yBatteries power on the UPS to provide stable AC power when there is no AC line avail-
able.

2-4
Ultron DPS Series
yAutomatic input frequency detection enables operation at 50Hz or 60Hz.
yOptional ECO Mode: when input voltage and frequency are within the range of rating
voltage ±10% and rating frequency ±5Hz, the UPS will transfer to bypass mode; other-
ZLVHWKH836ZLOOWUDQVIHUWRQRUPDOPRGHWRUHDFKKLJKHUHI¿FLHQF\
yAutomatically detects whether bypass voltage is out of rating voltage. If yes, the UPS
will stop supplying power to the critical loads to protect your electronic equipment.
y'XDOLQSXWGHVLJQIHDWXUHVDQLQGHSHQGHQWUHFWL¿HUDQGDE\SDVVVZLWFK
yBuilt-in manual bypass switch.
yAutomatic Restart
1. The UPS will restart in normal mode automatically right after the AC line resumes
following a low battery shutdown.
2. The UPS returns automatically to normal mode from bypass mode after an overload
condition or a short circuit condition is cleared.
y6XUJHSURWHFWLRQDQG(0,¿OWHUIXQFWLRQV
yBoth auxiliary power and control circuit adopt redundancy design, which doubly en-
hances UPS reliability.
yConnects several external battery cabinets (at maximum four) to extend backup time.
ySets up battery test and battery replacement alarms.
ySmart battery charger design allows auto-charging or manual-charging to reduce charg-
ing time.
yLocal and remote emergency power off functions.
yAttaches optional accessories like SNMP, Relay I/O, and ModBus cards for network
communication, dry contact, and ModBus communication.
yBuilt-in RS-232 port allows monitoring and management of the UPS via the UPSentry
2012 software (http://www.deltapowersolutions.com/en/mcis/software-center.php).
yState-of-the-art microprocessor technology performs self-detection and displays the
UPS status on LCD.
yBuilt-in SRAM records at maximum 500 event logs.
yFans automatically adjust fan speed to prolong fan life and reduce noise when the criti-
cal loads decrease.
yAC start-up function even when the UPS is not connected to the batteries.
WARNING:
Please note that when the UPS is not connected to the batteries, it will not protect
your equipment if the utility power is lost.

2-5
2Introduction
2.4 Exterior
On the front of the UPS, there is a control panel and two lockable door switches. On the
top, there are fans to ventilate the UPS to prevent overheating.
(Figure 2-1: UPS Exterior)
Fans
Foot
Control
Panel
Lockable
Door
Switches
2.4.1 Dimensions
(Figure 2-2: Dimensions (Without Top Cable Entry Cabinet))
1950
mm
1600
mm
865
mm

2-6
Ultron DPS Series
2.4.2 Other Views
yOpen Door: there are two door handles and one control panel on the front of the cabi-
net. To open the front doors, please refer to Figure 2-3.
yFront View with Door Open: after opening the doors, you can see internal mecha-
nisms. Please refer to Figure 2-4.
(Figure 2-3: Front View & Door Handles)
90°90°
(Push)
P.S.
FUSE
ACOUTLET
FUSE
ACOUTLET
220/230/240Vac,8A
OOFF
ONI
OOFF
ONI
OOFF
ONI
OOFF
ONI
IsolateUninterruptiblePower System (UPS)
Thencheckfor Hazardous Voltagebetween all
terminalsincludingthe protective earth
Seeinstallationinstructions before connecting to the supply
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RISKOFVOLTAGE BACKFEED
BEFOREWORKINGON THIS CIRCUIT
T
SR
N
UPS OU TPUT
TSRN
ACI NPUT
RST
BYPASS INPUT
240VDC240VDC
BATTERY INPUT
N
BYPASSSWITCH
INPUTSWITCH
MANUALBYPASS SWITCH
OUTPUTSWITCH
SLOT2SLOT1
RS232
PARALLEL
OUTPUT
DRYCONTACT
12
ON
C1C2C3C4C5C6P1P2P3P
4P5 P6 P7
Fans
AC Outlet
Input &
Output
Switches
Communication
Interfaces
Auxiliary Power Fuse
Holder (Left)/
AC Outlet Fuse
Holder (Right)
(Figure 2-4: Internal Mechanisms)

2-7
2Introduction
2.5 Control Panel
2.5.1 LED Indicators
2.5.3 LCD Display
2.5.4 Function Keys
2.5.2 ON, OFF, and
EPO Buttons
(Figure 2-5: UPS Control Panel)
2.5.1 LED Indicators
(Figure 2-6: LED Indicators)
Fault
1
2
3
4
5
6
7
8
No. LED Symbol Indicates LED On Meaning
1Bypass AC
Source Green When bypass AC Source is normal.
2Main AC Source Green When main AC Source is normal.
3Inverter Start-up Green When the UPS’s inverter starts up.
4Battery Power
Supply Yellow When batteries supply power to the critical loads.
5Bypass Power
Supply Yellow When the bypass supplies power to the critical loads.

2-8
Ultron DPS Series
No. LED Symbol Indicates LED On Meaning
6Output Switch Green When you turn on the Output
Switch (Q4).
7Inverter Power
Supply Green When the inverter supplies power to the critical loads.
8Fault Red When problems occur.
2.5.2 ON, OFF, and EPO Buttons
Button Name Function
ON
Button
Press this button for three to ten seconds and release it after you
hear one beep to start the UPS. If you do not release this button
within ten seconds, the UPS will not start.
OFF
Button
Press this button for three to ten seconds, release it after you hear
one beep and the system will show the message below.
SHUTDOWN UPS?
YES NO
Select 'YES' to turn off the UPS (the inverter will off). If you select
'YES' and the system detects there is a risk of power interruption
during transfer from inverter to bypass, the UPS will show the
following message.
RISK OF LOAD DROP!
SHUTDOWN UPS?
YES NO
To confirm turning off the UPS, select 'YES' again. Please see 8.
LCD Display and Settings for control panel operation.
EPO
EPO
Button When an emergency occurs, press this button to shut down the 836UHFWL¿HULQYHUWHUDQGRXWSXW
2.5.3 LCD Display
The UPS supports multi-language LCD display. The language default setting is English. If
you wish to change the language default setting, please refer to 8.7.7 Local Setup.
NOTE: The language default setting may be different according to countries.