Delta Ultron HPH series User manual

www.deltapowersolutions.com
The power behind competitiveness
HPH Series, Three Phase
20/30/40 kVA
User Manual
Delta UPS - Ultron Family
NORMAL
BATTERY
BYPASS
FAULT
ON OFF
ESC

ii
Ultron HPH Series UPS
SAVE THIS MANUAL
Copyright © 2020 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
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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, faultlessness, accuracy, non-infringement,
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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.

iii
Table of Contents
Table of Contents
Chapter 1 : Important Safety Instructions ------------------------------------------ 1
1.1 Placement Warnings-----------------------------------------------------------------1
1.2 Connection Warnings----------------------------------------------------------------1
1.3 Usage Warnings ----------------------------------------------------------------------1
1.4 Storage Warnings---------------------------------------------------------------------2
1.5 Glossary of Symbols-----------------------------------------------------------------3
1.6 Standard Compliance----------------------------------------------------------------4
Chapter 2 : Introduction ------------------------------------------------------------------ 5
2.1 Product Introduction------------------------------------------------------------------5
2.2 Package Inspection ------------------------------------------------------------------5
2.3 Functions and Features ------------------------------------------------------------6
Chapter 3 : Appearance and Mechanism-------------------------------------------- 8
3.1 Appearance and Dimensions------------------------------------------------------8
3.2 Front Panel-----------------------------------------------------------------------------8
3.3 Rear Panel---------------------------------------------------------------------------- 10
Chapter 4 : Operation Modes ----------------------------------------------------------13
Chapter 5 : Communication Interfaces ---------------------------------------------17
Chapter 6 : Installation and Wiring---------------------------------------------------24
6.1 Precautions Prior to Installation and Wiring---------------------------------- 24
6.2 Installation Environment----------------------------------------------------------- 24
6.3 UPS Transportation & Handling------------------------------------------------- 25
6.4 UPS Installation --------------------------------------------------------------------- 25
6.5 Wiring---------------------------------------------------------------------------------- 27
6.5.1 Precautions Prior to Wiring--------------------------------------------- 27
 6LQJOH,QSXW'XDO,QSXW0RGL¿FDWLRQ -------------------------------- 30
6.5.3 Single Unit Wiring--------------------------------------------------------- 32
6.5.4 Parallel Units Wiring ----------------------------------------------------- 39
6.6 External Battery Cabinet Connection Precautions ------------------------- 42

iv
Ultron HPH Series UPS
Chapter 7 : Operation---------------------------------------------------------------------46
7.1 Connecting the UPS with the Utility AC Power------------------------------ 46
7.2 Turn-on-------------------------------------------------------------------------------- 46
7.3 Turn-off -------------------------------------------------------------------------------- 46
7.4 Manual Bypass Operation-------------------------------------------------------- 47
Chapter 8 : LCD Display and Settings ----------------------------------------------49
8.1 LCD Display Hierarchy ------------------------------------------------------------ 49
8.2 Main Screen-------------------------------------------------------------------------- 50
8.3 Parallel Screen ---------------------------------------------------------------------- 51
8.4 Main Menu---------------------------------------------------------------------------- 52
8.5 Measure------------------------------------------------------------------------------- 53
8.6 Maintenance ------------------------------------------------------------------------- 54
Chapter 9 : Optional Accessories ----------------------------------------------------57
Chapter 10 : Maintenance ---------------------------------------------------------------58
Chapter 11 : Troubleshooting----------------------------------------------------------59
$SSHQGL[7HFKQLFDO6SHFL¿FDWLRQV----------------------------------------------61
Appendix 2 : Warranty--------------------------------------------------------------------63

1
Chapter 1 Important Safety Instructions
Chapter 1 : Important Safety Instructions
1.1 Placement Warnings
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. Please refer to 6.2
Installation Environment.
1.2 Connection Warnings
yThe UPS must be well grounded due to a possible risk of current leakage.
yIt is necessary to install protective devices and 4-pole contactors when the UPS is con-
nected to the mains and bypass source. For relevant information, please refer to 6.5.1
Precautions Prior to Wiring.
yThe protective devices connecting to the UPS must be installed near the UPS and must be
easily accessible for operation.
1.3 Usage Warnings
yThis is a class-A product. In a domestic environment, this product may cause radio interfer-
ence, in which case, the user is required to take adequate measures.
yThe UPS can be used to power computers and associated peripheral devices, such as
monitors, modems, cartridge tape drives, external hard drives, etc.
y,IWKH836QHHGVWREHFRQQHFWHGWRDPRWRUORDGLWPXVWEHFRQ¿UPHGE\TXDOL¿HGVHU-
vice personnel.
yIt is strictly forbidden to connect the UPS with any regenerative-type loads.
yThe parallel UPSs can connect with common batteries.
yThe external slits and openings in the UPS are provided for ventilation. To ensure reliable
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.
yIn a low temperature environment (below 0°C), you must allow the UPS to adjust to room
temperature for at least one hour to avoid moisture condensing inside the UPS before us-
age.
yThe length of the communication cable must be less than 10 meters. If it is longer than 10
meters, please contact service personnel.

2
Ultron HPH Series UPS
yDo not put beverage containers on the UPS, battery cabinet or any other accessory asso-
ciated with the UPS.
yThe risk of dangerous high voltage is possible when the batteries are still connected to the
UPS even though the UPS is disconnected from the mains. Do not forget to pull out the
battery cable to completely cut off the battery source.
yDo not open or mutilate the battery or batteries. The released electrolyte is harmful to the
skin and eyes and may be toxic.
y'RQRWGLVSRVHRIWKHEDWWHU\RUEDWWHULHVLQD¿UH7KHEDWWHULHVPD\H[SORGH
y$OOPDLQWHQDQFHVHUYLFHVPXVWEHSHUIRUPHGE\TXDOL¿HGVHUYLFHSHUVRQQHO)RUELGRSHQ-
ing or removing the cover of the UPS to avoid high voltage electric shock.
y<RXPXVWFRQWDFWTXDOL¿HGVHUYLFHSHUVRQQHOLIHLWKHURIWKHIROORZLQJHYHQWVRFFXU
1. Liquid is poured or splashed on the UPS.
2. The UPS does not run normally after this User Manual is carefully observed.
NOTE:
If you use the UPS in an area that generates or incurs dust, you should install a dust
¿OWHULQWKH836WRHQVXUHQRUPDOSURGXFWOLIHDQGIXQFWLRQ
1.4 Storage Warnings
yPrior to Installation
If the UPS needs to be stored prior to installation, it should be placed in a dry area. The al-
lowable storage temperature is between -15°C and +50°C.
yAfter Usage
Press the OFF key ( OFF ) once and the LCD shows the following screen. If you want to
turn off the UPS, please press the DOWN key ( ). Make sure the UPS is shutdown,
disconnect the UPS from the utility power, remove all equipment from the UPS, and store
the UPS in a dry and well-ventilated area at a temperature between -15°C and +50°C.
Idle batteries must be recharged fully approximately every three months if the UPS needs
to be stored for an extended period of time. The charging time must not be less than 24
hours each time.
?
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3
Chapter 1 Important Safety Instructions
1.5 Glossary of Symbols
No. Symbol Description
1
NORMAL
2QOLQHPRGH/('LQGLFDWRUJUHHQ
2
BATTERY
%DWWHU\PRGH/('LQGLFDWRU\HOORZ
3
BYPASS
%\SDVVPRGH/('LQGLFDWRU\HOORZ
4
FAULT
)DXOW/('LQGLFDWRUUHG
5ON ON key
6OFF OFF key
7ESC Goes back to previous screen or cancels current selection.
8Moves down/ Decreases number.
9Moves up/ Increases number.
10 &RQ¿UPVVHOHFWLRQ
11
EPO
EPO key
12 R R phase of AC Input/ UPS Output
13 S S phase of AC Input/ UPS Output
14 T T phase of AC Input/ UPS Output
15 N Input neutral line/ Output neutral line / Battery neutral line
16 For UPS grounding
17 For critical load grounding/ For external battery cabinet
grounding
18 Positive battery terminal
19 Negative battery terminal

4
Ultron HPH Series UPS
1.6 Standard Compliance
This product meets the following safety standards and electromagnetic compatibility (EMC)
LQVSHFWLRQVWDQGDUGV
yCE
yIEC62040-1
yGB7260.2-2009/ IEC62040-2 C2
yGB17626-2/ IEC61000-4-2 (ESD) Level 4
yGB17626-3/ IEC61000-4-3 (Radiated Field) Level 3
yGB17626-4/ IEC61000-4-4 (EFT) Level 4
yGB17626-5/ IEC61000-4-5 (Surge) Level 4

5
Chapter 2 Introduction
Chapter 2 : Introduction
2.1 Product Introduction
The HPH series UPS is a three-phase four-wire online uninterruptible power supply which
provides reliable and stable sine-wave power to your electronic devices. The UPS applies the
latest design of DSP digital control technology and highest quality assembly, with an output
SRZHUIDFWRUXSWRXQLW\7KHHI¿FLHQF\RIWKHHQWLUHGHYLFHFDQUHDFKXSWRLQRQOLQH
PRGHDQGXSWRLQ(&2PRGH:LWKLWVRXWVWDQGLQJIHDWXUHVWKH836QRWRQO\SURYLGHV
safe, reliable and uninterrupted power to your sensitive electronic equipment at all times, but
DOVRSURGXFHVJUHDWHUHOHFWULF SRZHUHI¿FLHQF\DWOHVVFRVW7KLV+3+VHULHV836SURYLGHV
three different rated power levels, 20kVA, 30kVAand 40kVA, for your selection.
2.2 Package Inspection
yExternal
During UPS transportation, some unpredictable situations might occur. It is recommended
that you inspect the UPS exterior packaging. If you notice any damage, please immedi-
ately contact the dealer from whom you purchased the unit.
yInternal
1. Check the rating label on the top of the UPS cabinet 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.
(Male) (Female) (Male) (Male)
EPO
NORMAL
BATTERY
BYPASS
FAULT
ON OFF
ESC
1
2 3
4 5
6

6
Ultron HPH Series UPS
No. Item Quantity
1UPS 1 pc
2User Manual 1 pc
3Test Card 1 pc
4RS232 Cable 1 pc
5Parallel Cable 1 pc
6Mini-card Flat Cable*11 pc
NOTE:
1. The balance supports have been locked on the pallet when the UPS is
shipped out of the factory. Please keep them well after unpacking. You might
use them for installation.
2. *1: The cable connects the UPS and a Delta Mini SNMP card, Mini USB card,
Mini Relay I/O card, or Mini Modbus card. The above-mentioned cards are op-
tional. Please refer to Chapter 9: Optional Accessories.
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.
2.3 Functions and Features
yThe HPH series UPS is designed for systems with medium power. It provides clean power
supply to data systems, communication systems, computer network systems, medical
treatment systems, monitoring systems, factory equipment, etc.
yThe HPH series UPS utilizes all digital high frequency modulation technology, which de-
creases volume, improves reliability and prolongs service life.
y:LGH$&LQSXWYROWDJHUDQJHIXOOORDGaa9DFORDGaa
300Vac) reduces frequent transfer from normal mode to battery mode to save battery con-
sumption and prolong battery life.
yBattery test in online mode and regular battery test prolong battery life.
yAutomatic input frequency detection enables operation at 50Hz or 60Hz.

7
Chapter 2 Introduction
yYou can parallel at maximum four UPS units for N+X parallel redundancy, capacity expan-
sion and reliability enhancement.
yIt is convenient to set the parameters (output voltage, charging current, output frequency
and password setting, etc.) on the LCD panel.
yThe operating conditions, such as load, input and output voltage, input and output frequen-
cy, battery voltage, of the device are available on LCD so that management personnel can
see them accurately and clearly.
y,WFDQVHWWKHRXWSXWYROWDJHRQ/&'DV9DF
yThe CPU can record up to 200 entries of abnormal information of the UPS, which is helpful
LQIDXOWGLDJQRVLVIRUWKH836DQGLQWKHLPSURYHPHQWRIWKHPDLQWHQDQFHHI¿FLHQF\
y1REDWWHU\VWDUWXS,QFDVHWKHH[WHUQDOEDWWHU\FDELQHWLVQRWFRQQHFWHGWKHGHYLFHFDQ
still start up normally with normal AC.
y5(32SRUW8QGHUHPHUJHQF\VWDWXVXVHDXVHUVXSSOLHGUHPRWHFRQWUROVZLWFKWRGLVFRQ-
nect the output immediately to prevent any danger.
yBuilt-in RS232 port allows monitoring and management of the UPS via the UPSentry 2012
VRIWZDUHKWWSVGDWDFHQWHUVRIWZDUHFHQWHUGHOWDZZFRPFQ
yAttaches optional accessories like SNMP and Mini SNMP cards for network communica-
tion.
yOther optional accessories include Mini Relay I/O, Mini USB, Mini ModBus and Mini TVSS
cards for dry contact, USB communication, ModBus communication and surge protection.
y,QRUGHUWRLPSURYHWKHHI¿FLHQF\IXUWKHUWKH836FDQEHVHWWRRSHUDWHLQ(&2PRGH,Q
case of any abnormal conditions, the UPS will transfer to online mode automatically.
yAutomatically detects and shows whether fans are operating normally.
yThe fans have automatic speed regulation function. With multi-stage control over the fan
VSHHGLWFDQLPSURYHWKHUHOLDELOLW\DQGWKHHI¿FLHQF\RIWKHV\VWHPUHGXFHWKHQRLVHDQG
prolong the service life of the fans.
y3URYLGHVERRVWFKDUJHDQGÀRDWFKDUJH<RXFDQDGMXVWWKHFKDUJHFXUUHQWIURP$WRWKH
maximum. Each adjustment level is 0.5A. The charging mode is set according to the actual
charging current so as to keep the batteries at full charging capacity and prolong the bat-
WHU\OLIHÀRDWFKDUJHYROWDJH9GFERRVWFKDUJHYROWDJH9GF

8
Ultron HPH Series UPS
Chapter 3 : Appearance and Mechanism
3.1 Appearance and Dimensions
(Figure 3-1: 20/ 30/ 40kVA UPS
Appearance and Dimensions)
EPO
NORMAL
BATTERY
BYPASS
FAULT
ON OFF
ESC
800
mm
800
mm
380
mm
3.2 Front Panel
(Figure 3-2: Front Panel)
EPO
NORMAL
BATTERY
BYPASS
FAULT
ON OFF
ESC
7
12
3
4
5 6
7
89
1011
12

9
Chapter 3 Appearance and Mechanism
No. Item Description
1
NORMAL
This indicates that the UPS is operating in online mode and
the utility AC power is normal.
2
BATTERY
This indicates that the UPS is operating in battery mode and
the external batteries are discharging.
3
BYPASS
This indicates that the UPS is operating in bypass mode.
4
FAULT
This indicates that the UPS has abnormalities.
5LCD Display This displays the operating status of the UPS and the rel-
evant monitoring data.
6ON ONNH\3UHVVWKLVNH\IRUaVHFRQGVDQGUHOHDVHLWDIWHU
you hear a beep to start up the UPS.
7OFF
OFFNH\3UHVVWKLVNH\RQFHDQGWKH/&'VKRZVWKHIROORZ-
ing screen. To turn off the UPS, please press the DOWN key
( ).
?
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<(6 12
8&RQ¿UPVVHOHFWLRQ
9Moves up/ Increases number.
10
Moves down/ Decreases number.
11
ESC Goes back to previous screen or cancels current selection.
12
EPO When an emergency event occurs, press the EPO key for
RYHUVHFRQGWRVKXWGRZQWKHUHFWL¿HULQYHUWHUDQGRXWSXW
of the UPS immediately.

10
Ultron HPH Series UPS
3.3 Rear Panel
12
ON
WARNING:
OPENING THIS COVER PLATE WILL
CAUSE INVERTER SHUTDOWN. ONLY
AUTHORIZED SERVICE PERSONNEL
CAN OPEN AND OPERATEIT.
13456 122
MINI SLOT
SMART SLOT
REPO
CHARGER
DETECTION
INPUT
DRY CONT ACT
OUTPUT
DRY CONT ACT
123456 12
PARALLEL RS232
PARALLEL
SWITCH
PARALLEL
MANUAL BYPA SS SWITCH
BATTERYINPUT


N
240V DC 240V D C
AC INPUT
NTSR
UPS OUTPU T
SRNT
S TR
OUTPUT BREA KERMAIN INPUT BR EAKER
S T NR
BYPASS INPUT B REAKER
S T NR
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
RTS
UPS OUTPUT
N
AC INPUT
RSTN
N
240V DC
BATTERY INPUT
 
240V DC
12
ON
1 3456 122
MINI SLOT
SMART SLOT
REPO
CHARGER
DETECTION
INPUT
DRY CONT ACT
OUTPUT
DRY CONT ACT
123456 12
PARALLEL RS232
PARALLEL
SWITCH
PARALLEL
WARNING:
OPENING THIS COVER PLATE WILL
CAUSE INVERTER SHUTDOWN. ONLY
AUTHORIZED SERVICE PERSONNEL
CAN OPEN AND OPERATEIT.
MANUAL BYPA SS SWITCH
S TR
OUTPUT BREA KERMAIN INPUT BR EAKER
S T NR
BYPASS INPUT B REAKER
S T NR
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
I
O
ON
OFF
RTS
UPS OUTPUT
N
AC INPUT
RSTN
N
240V DC
BATTERY INPUT
 
240V DC
MAIN INPUT BR EAKER BYPASSINPUT BREAKER OUTPUTBREAKER
R S T N R S T
N R S T
12
ON
1 3456 122
MINI SLOT
SMART SLOT
REPO
CHARGER
DETECTION
INPUT
DRY CONT ACT
OUTPUT
DRY CONT ACT
123456 12
PARALLEL RS232
PARALLEL
SWITCH
PARALLEL
WARNING:
OPENING THIS COVER PLATE WILL
CAUSE INVERTER SHUTDOWN. ONLY
AUTHORIZED SERVICE PERSONNEL
CAN OPEN AND OPERATEIT.
MANUAL BYPA SS SWITCH
1
2
3
4
5
6
7
8
9
10
11
12
13 12 13
14
15
16
17
18
19
20
21
12
3
4
5
6
7
8
9
10
11
12
13
14
15
16 17
18
19
20
21
12
3
4
5
6
7
8
9
10
11
14
15
16 17
18
19
20
21
(Figure 3-3: 20kVA Rear Panel) (Figure 3-4: 30kVA Rear Panel)
(Figure 3-5: 40kVA Rear Panel)

11
Chapter 3 Appearance and Mechanism
No. Item Description
1SMART Slot Connects SNMP/ Relay I/O/ ModBus card. For detailed infor-
mation, please refer to Chapter 5 : Communication Inter-
faces.
2MINI Slot Connects Mini SNMP/ Mini Relay I/O/ Mini USB/ Mini Mod-
Bus/ Mini TVSS card. For detailed information, please refer
to Chapter 5 : Communication Interfaces.
3DC Fans Cool and ventilate the UPS.
4Parallel Switch Controls parallel ports' status (ON or OFF). For detailed infor-
mation, please refer to Chapter 5 : Communication Inter-
faces.
5Parallel Ports For UPS parallel usage. For detailed information, please refer
to Chapter 5 : Communication Interfaces.
6Output Dry
Contacts Receive the UPS’s event information. Please refer to Chap- ter 5 : Communication Interfaces.
7Input Dry
Contacts Receive external information of devices connected to the input dry contacts. Please refer to Chapter 5 : Communica-
tion Interfaces.
8REPO Port When an emergency event occurs, it can disconnect the UPS
power supply rapidly and shut down the UPS safely and im-
mediately. For detailed information, please refer to Chapter 5
: Communication Interfaces.
9Manual Bypass
Switch For maintenance only! Only authorized service personnel can open the cover plate of the manual bypass switch and
operate it. Please note that opening this cover plate and turn-
ing on the manual bypass switch in online mode will cause
inverter shutdown.
10
RS232 Port Connects to a computer. For detailed information, please re-
fer to Chapter 5 : Communication Interfaces.
11
Charger
Detection Port Connects to a charger box and detects the charger status. Please refer to Chapter 5 : Communication Interfaces.
12
Main Input
Breaker Controls the UPS’s main input switch and for safety protec- tion.
13
Bypass Input
Breaker Controls the UPS’s bypass power switch and for safety pro- tection.
14
For external battery cabinet grounding.

12
Ultron HPH Series UPS
No. Item Description
15
Battery Input
Terminal Block Connects an external battery cabinet.
16
AC Input Termi-
nal Block Connects the main AC source.
17
For UPS grounding.
18
UPS Output
Terminal Block Connects the critical loads.
19
For critical load grounding.
20
Casters The casters are designed for a short distance movement
only. Do not use the casters to move the UPS over a long
distance. The casters are not designed to provide long-term
support for the UPS after installation.
21
Levelers The levelers are designed to provide long-term support for
the UPS.

13
Chapter 4 Operation Modes
Chapter 4 : Operation Modes
yOnline Mode
The critical load is supplied by the inverter, which derives its power from the utility AC power, and
the UPS charges the batteries as needed and provides power protection to the equipment. During
on-line mode, the NORMAL LED indicator (
NORMAL
) illuminates (green).
BYPA.
MAIN
LOAD
Batteries
Rectifier Inverter
(Figure 4-1: Path of Electrical Power through the UPS in Online Mode)
yStandby Mode
When the input voltage and frequency of the utility AC power are within the normal range, the UPS
runs in standby mode and charges the batteries. The bypass and the inverter have no output.
(Figure 4-2: Path of Electrical Power through the UPS in Standby Mode)
BYPA.
MAIN
LOAD
Batteries
Rectifier Inverter

14
Ultron HPH Series UPS
yECO Mode
You can manually set the UPS to ECO mode. In ECO mode, when the utility input voltage is within
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indicator (
BYPASS
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and the NORMAL LED indicator (
NORMAL
) illuminates (green).
(Figure 4-3: Path of Electrical Power through the UPS in ECO Mode)
BYPA.
MAIN
LOAD
Batteries
Rectifier Inverter
yBattery Mode
When the UPS is operating during a power outage, the batteries provide DC power, which main-
tains inverter operation to support the critical load. During battery mode, the BATTERY LED indica-
tor (
BATTERY
) illuminates (yellow).
(Figure 4-4: Path of Electrical Power through the UPS in Battery Mode)
BYPA.
MAIN
LOAD
Batteries
Rectifier Inverter

15
Chapter 4 Operation Modes
Table 4-1: The battery status is as follows
Battery Capacity Buzzer LCD Display
Full/ Mid
The alarm beeps once every 10
seconds.
(ON for 0.1 second and OFF for 9.9
seconds)
BATTERY CAPACITY
00V/ 000
Low
The alarm beeps once every 0.5
second.
(ON for 0.1 second and OFF for 0.4
second)
BATTERY CAPACITY
00V/ 000
Under Long beep SHUT DOWN DUE TO
DEPLETED BATTERY
yBypass Mode
The critical load is directly supplied by the utility power and the batteries are charged. During by-
pass mode, the BYPASS LED indicator (
BYPASS
) illuminates (yellow).
(Figure 4-5: Path of Electrical Power through the UPS in Bypass Mode)
BYPA.
MAIN
LOAD
Batteries
Rectifier Inverter

16
Ultron HPH Series UPS
yConverter Mode
When the UPS is manually set in converter mode, the output frequency can be set as 50Hz or
60Hz. After the output frequency is set up, the system will automatically disable the bypass func-
tion. Please note that once the inverter shuts down, there is no bypass output. During converter
mode, the NORMAL LED indicator (
NORMAL
) illuminates (green).
BYPA.
MAIN
LOAD
Batteries
Rectifier Inverter
(Figure 4-6: Path of Electrical Power through the UPS in Converter Mode)