user manual delta esi48i series dc-ac inverter

8/10/2019 User Manual Delta Esi48i Series Dc-Ac Inverter

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DELTA ESI48I SERIESDC-AC INVERTER

Installation Instruction Manual

DELTA ELECTRONICS, INC.


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Page: 1/20 User Manual

1. IMPORTANT SAFETY INSTRUCTIONS

1-1 Safety statements

- SAVE THESE INSTRUCTIONS - This manual contains important instructions for our inverter that should

be followed during installation and maintenance of the inverter.

- To reduce the risk of electric shock, install this inverter in a temperature and humidity controlled indoorarea free of conductive contaminants. Ambient temperature must not exceed 50oC (122oF).

- The AC output of the inverter need a disconnect switch such as a breaker which has to be provided byothers.

- The over-current protection for the output AC circuit has to be provided by others. All of our inverter has anelectronic protection of AC output short circuit.

- The following precautions should be observed when working on inverter:

Remove watches, rings, or other metal objects.

Use tools with insulated handles.

Wear rubber gloves and boots.

- The AC input of the inverter needs a readily accessible disconnected device and shall be incorporated in thebuilding installation wiring.

- Short circuit backup protection is relies on 16A building installation device.

1-2 Other safety notes

- Examine the packing container for damage. Notify the carrier immediately if damage is present.

- Do not disassemble the inverter.

- Do not operate near water or excessive humidity.

- Keep liquid and foreign objects from getting inside the inverter.

- Install inverter in a well-ventilated area. Do not block air vents in front of inverter or air exhausts in theback.

- Do not operate close to gas or fire.

- Do not plug appliances, such as half bridge rectified load, into the inverter receptacles.

- Do not operate if the unit is leaking liquid or if a white powdery residue is present.

- Elevated operating ambient temperature: If installed in a closed or multi-unit rack assembly, the operatingambient temperature of the rack environment may be greater than room ambient. Therefore, consideration

should be given to installing the equipment in an environment compatible with the manufacturers

maximum rated ambient temperature.

- Reduced air flow: Installation of the equipment in a rack should be such that the amount of air flow requiredfor safe operation of the equipment is not compromised.

- Mechanical loading: Mounting of the equipment in the rack should be such that a hazardous condition is notachieved due to uneven mechanical loading.

- Circuit overloading: Consideration should be given to the connection of the equipment to the supply circuitand the effect that overloading of circuits might have on over-current protection and supply wiring.

Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.


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- Reliable earthing: Reliable earthing of rack-mounted equipment should be maintained. Particular attentionshould be given to supply connection other than direct connections to the branch circuit.

- Connect the equipment to a 48Vdc SELV source.

1-3 Symbol

PROTECTIVE GROUNDING TERMINAL: A terminal, which must be connected to earth groundprior to making any other connection to the equipment.

This symbol indicates the word "phase".


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2-2 Block Diagram

ESI INVERTER block diagram

Different to the traditional design concept of using low frequency transformer and bipolar transistor, ESI

inverter adopts IGBT. The new design concept does not only minimize the weight and dimension but also enhance

output short circuit reliability and overload capacity.

There are two paths that can supply output voltage. One is from bypass AC input, another is from DC to AC

inverter. So there are two operational modes can be chosen (by the front panel). The operational mode decides thedefault output path.

The first one is Off-line Mode,output will come from AC bypass path during the normal condition. System

will transfer output to DC/AC inverter path if any AC input abnormal is detected. When AC is recovery, system will

come back to bypass path automatically. During operating under this mode, the efficiency is very high, but the output

waveform is totally decided by AC input.

The other one is On-line Mode, output will come from DC/AC inverter path during the normal condition.

System will transfer output to bypass path if DC/AC inverter fail or input abnormal is detected. When DC/AC

inverter output becomes normal, system will come back to DC/AC inverter path automatically.

The Off-line/On-line mode is changed from one to another by pressing ON button when output is available.

The operational mode cannot be changed when any abnormal or fault condition is detected.

DC INPUT

DC

DC

DC

ACAC

OUTPUT

DC to DC Converter

FILTER

INVERTER RELAY

BREAKER

DC to AC Inverter

AC BYPASS

INPUTFILTER

BYPASS RELAY


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2-3 Front Panel

ON/OFF buttons:

Power switch for turning on or turning off the inverter.

Once inverter has been turned on, the ON button works as an On-Line Off-Line mode switching

button.

LED Display:

INVERTER ON Indicates the INVERTER has been turned on and works normally (output is available).

OVERLOAD Means that the inverter is overload or output short circuit.

DC ABNORMAL Means that the input DC voltage is abnormal

FAULT

Indicates that there are some faults happened to the inverter.

LCD Display selection button

Different information (output voltage, output frequency, load, input dc voltage, bypass ac voltage, bypass

ac frequency, etc.) and system status can be sequentially showed on LCD display by pressing these two buttons.

Please refer to chapter 3 for more information.

Ventilator

The ventilator on front panel is used for draining the hot air inside the inverter. Please keep enough space

in front of the ventilator for getting better cooling.

Circuit Breaker (DC Breaker)

The breaker will trip when short circuit happened in the inside of inverter. Input reverse polarity-proofprotection and overload protection is implemented by electronic circuit, the DC breaker will not trip under these

conditions.


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2-4 Rear Panel

Communication Interface

ESI-Inverter has two different communication interfaces

a) RS-232 interface.

b) Dry Contact interface.

FAN

DC fans used for cooling the inverter.

AC output receptaclesIEC-320 4

AC input terminal

Terminal for 208V/220V/230V/240V AC input voltage.

AC input breaker

Breaker for AC input

DC input terminal

Terminal for 48V DC input voltage

Dry contact terminal

When input DC voltage and AC voltage are abnormal, internal relay will act.

The terminal can carry 5A / 250Vac

Optional card slot *

An optional adapter SNMP card can equip in this slot.


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B. Configuring USHA via Serial Port

1. In Win98/2000/XP Click Start -> Programs -> Accessories -> Hyper terminal

2. Double click Hypertrm.exe

3. Enter a name & press OK

4. Select the correct COM port

5. Click OK

6. Configuring the Port Settings as shown (9600,8,None,1,None)

7. Click OK

8. Set DIP switch on USHA to SW1=OFF SW2=OFF

9. Insert USHA/Smart to the Inverter.


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10. Enter the default password admin at the prompt

11. Enter 1 and Return twice to enter the System Group Menu

12. The factory default settings are as shown13. Assign an IP address for USHA, and the correct Subnet Mask

Note: both PC and USHAs IP address must be in the same IP net

14. Enter 0 and Return twice to back to the main menu

15. Enter 2 to go to the Inverter Parameters Menu

16. Enter 1 to go to the Inverter Information Group Menu17. Enter correct Inverter manufacture, model name and Inverter Identification name

18. Enter 0 and back to the previous menu

19. Enter 2 to the Inverter Rating Group Menu

20. Enter correct Rating voltage, Rating Current, Battery Voltage and Battery

Replace Date21. Enter 0 and return three times to exit


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4. Cover for AC input terminal * 1 set (cover * 1, bracket * 1, UNC #6-32 screw * 4)

5. Installation instruction manual * 1


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3-4 DATA button

You can use the "DATA" button to select the information you would like to know. The left function key

display the following information:

A) Output voltage: Shows present output voltage

OUTPUT VOLT.

***

.

V ***

B) Inverter voltage:Shows present inverter voltage

INVERTER VOLT.

*** . V ***

C) Output frequency : Shows present output frequency.

OUTPUT FREQ.

*** . Hz ***

D) Bypass AC voltage: Shows present input bypass AC voltage

BYPASS AC VOLT

*** . V ***

E) Bypass AC frequency: Shows present input bypass AC frequency

BYPASS AC FREQ

*** . Hz ***

F) Input DC voltage: Shows the input DC voltage

INPUT DC VOLTAGE

***

.

V ***

G) Output current: Shows present output current

OUTPUT CURRENT

*** . A ***

H) Output VA: Shows present output Volt-Amp

OUTPUT VA

*** VA ***

I) Output power: Shows present output power (Watt)

OUTPUT POWER

***

W ***

J) Temperature: Shows the temperature inside the INVERTER

TEMPERATURE

*** . C ***


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K) Firmware Version: Shows the CPU firmware version

FIRMWARE VERSION

*** V . ***

3-5 STATUS keyThe "select" button can show the system status. These information include:

A) Output status:

a) When the input bypass voltage is normal and INVERTER output voltage (208V/220V/230V/240V) is

from DC to AC inverter, LCD shows

INVERTER : ON

BYPASS : STD BY

b) When output is from input bypass AC, LCD shows

INVERTER : STD BY

BYPASS : ON

c) When INVERTER is turned off by firmware, LCD shows

** OUTPUT **

OUTPUT OFF

d) When INVERTER is turned off by software, LCD shows

** OUTPUT **

SCHEDULE OFF

B) DC to AC inverter status

a) When INVERTER is normal, LCD shows

** INVERTER **

NORMAL

b) When inverter is over temperature (may be caused by overload, high ambient temperature or fan failure),

LCD shows

** INVERTER **

OVER TEMPERATURE

c) When the temperature inside the INVERTER is too high, LCD shows

** AMBINT **

OVER TEMPERATURE

d) When the INVERTER output is short circuit, LCD shows

** INVERTER **

SHORT CIRCUIT


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e)When the INVERTER output is overload, LCD shows

** INVERTER **

OVERLOAD

f)When the fan is block or wear out, LCD shows

** INVERTER **

FAN FAILURE

g)When INVERTER voltage is too high, LCD shows

** INVERTER **

OVER VOLTAGE

h)When INVERTER voltage is low, LCD shows

C) Bypass AC status

a)When the input bypass voltage is normal, LCD shows

** BYPASS AC **

NORMAL

b)When the input bypass voltage is normal and INVERTER output is from bypass voltage, LCD shows

INVERTER : STD BY

BYPASS : ON

c)When the input bypass voltage is too low, LCD shows

** BYPASS AC **

UNDER VOLTAGE

d)When the input bypass voltage is too high, LCD shows

** BYPASS AC **

OVER VOLTAGE

e)When the input bypass is over normal frequency range, LCD shows

** BYPASS AC **

OUT OF FREQ.

f)When the output is overload, LCD shows

** BYPASS AC **

OVER LOAD

** INVERTER **

UNDER VOLTAGE


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4. INSTALLATION AND MAINTENANCE

4-1 Delivery

Upon received of goods, check the condition of the package. If package or unit is damaged, contact your

dealer immediately .If there is any visible sign of mishandling or anything missing, contact your local dealer at

once.

4-2 Installation Procedures

Please check the input DC voltage meets the specification of the inverter and notice the polarity of the DCvoltage as connecting the DC voltage with inverter DC input terminal.

Connect the DC input voltage before turn on the breaker on the front panel.

Using the following cables when connecting power source to the inverter.

Model DC Input AC Input

1KVA ESI48I102AB B #10AWG #16AWG

2KVA ESI48I202AB A #6AWG #14AWG

4-3 Maintenance

Make sure that the ventilators on the inverter are not blocked.

Use a vacuum cleaner to get rid of any dust that may rest on the opening of the fan.

When cleaning the case or front panel, only use a soft, dry cloth. If the case or front panel is very dirty,use a neutral, non-abrasive detergent. Do not use alcohol or ammonia based solutions.

Ask qualified service engineer to check the entire system periodically. Such when moving your

inverter, always handle it with care.

Avoid spilling liquid on the Inverter.


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5. TROUBLESHOOTING

Problem Possible cause Action to take

The circuit breaker is off Turn on or reset the circuitbreaker.

Internal fuse was blown.Call for service personnel to

replace the fuse.

LED do not light up

DC input is over or under voltage. Apply correct DC voltage.

Bypass AC failAC voltage , frequency may be

out of range.

Inverter failure. Call for service.FAULT LED lights up

Output was short. Load may be abnormal

OVERLOAD LED is ON The power drawn from the inverterexceeded the load rating of the

inverter.

Remove unnecessary load.

Incorrect transmission rate.Use 2400 bps baud rate and

re-test.Communication fault.

Wrong wire connection.Refer to the wire connection in

chapter 6.

FAULTLED lights, LCD

OVERTEMPRATUR

Temperature inside the inverter

is too high.Check the ventilator and fan.


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6. COMMUNICATION

6-1 RS-232 Communication Port

The RS-232 communication port provides the following features:

1)Provide Fault, DC abnormal, Overload, and Inverter Fail etc.

2)Monitor and display output voltage, output load, input dc voltage and temperature.

3)With software application in PC, provides scheduled on/off function for inverter.

Inverter data will be transmitted at 2400 baud rate and is made up of 8 bit, 1 stop bit, and no parity bit. All the

information is provided in ASCII format.

HARDWARE:

BAUD RATE --------------------------------- 2400 bps

DATA LENGTH ----------------------------- 8 bits

STOP BIT ------------------------------------- 1 bit

PARITY---------------------------------------- NONE

CABLING:

COMPUTER (female) INVERTER (male )

PIN2 (RXD) ------------------- PIN2 (TXD)

PIN3 (TXD) ------------------- PIN3 (RXD)

PIN4 ( PNP) ------------------- PIN4 (PNP)

PIN5 (COMMON) ------------------- PIN5 (COMMON)

PIN6 ( PNP) ------------------ PIN6 (PNP)

PIN7 ( PNP) ------------------ PIN7 (PNP)

6-2 Dry contact communication port

Dry contact terminal is connected to two Form C relays. One is for DC abnormal and the other one is for

FAULT.

NC: normal close

CO: common

NO: normal open..


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7. TECHNICAL SPECIFICATIONS

MODEL ESI48I202xxxx ESI48I102xxxx

Capacity 2000VA / 1600W 1000VA / 800W

Voltage 208V/220V/230V/240V (selectable by RS-232 )Frequency 50 /60 Hz (selectable by RS-232)

Waveform Pure Sine Wave

THD: < 3% (Linear Load), < 5% ( Rectified Load ) for 230V output

Crest Factor 3 : 1

Receptacle IEC-320 4 IEC-320 4

AC

OUTPUT

Short Electrical Protection

Overload105% ~125% 3 minutes ; 126% ~150 % 30 seconds ;

>151 % 1 second ; Shutdown

Temperature Electrical Protection for Over TemperaturePROTECTION

Output Voltage Over and Under Voltage Protection

Voltage 208/220/230/240V 20V

Rated Current 10 A max 5 A max

Protection 15A Breaker 8A BreakerAC INPUT

Connection Terminal black ( 3 P )

Voltage

40V ~ 60V (Bypass voltage is normal)

< 40V, jump to off line mode

< 42V, displays show input dc low

> 59V, displays show input dc high

> 60V, jump to off line mode

Rated Current 50A max 25A max

DC INPUT

Protection Breaker and fuseEfficiency

( liner load )

ESI48I202xxxx:> 86 % ( DC input 48V / AC output 230V )

ESI48I102xxxx :> 85 % ( DC input 48V / AC output 230V )

Connection Terminal block ( 3 P )

Communication Dry Contact / RS-232

LED Display OUTPUT ON , OVERLOAD , DC ABNORMAL , FAULT

LCD Display

(data)

Output voltage, Output frequency, Bypass AC voltage, Bypass AC

frequency, VA, W, Input DC voltage, Temperature, Firmware

Version

INTERFACE

LCD Display

(status)

Output status, DC to AC inverter status

Bypass AC status, DC input status

Temperature 0 ~ 45oC

Humidity 20% ~ 90%(NO-Condensing)ENVIRONMENT

Noise

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