User Manual Power Inverter

ESPOWER USER MANUAL

INTELLIGENT POWER INVERTER

USER MANUAL
POWER INVERTER
ESP TECHNOLOGIES LIMITED
Tel: +66 2 147 5048-9
138/79 M.2, Ban Klang, Mueang Pathum Thani, Pathum Thani 12000 Fax: +66 2 592 7919
Email : [email protected]
บริษทั อเี อสพี เทคโนโลย่ี จำกดั website : www.esptechno.com

138/79 หมูที่ 2 ตำบลบานกลาง อำเภอเมอื งปทมุ ธานี จงั หวดั ปทุมธานี 12000

CONTENTS

Contents Page

1. INTRODUCTION ………………….………………..…………………….. 1
2. PRODUCT SPECIFICATION …………………………..………………. 2
3. FRONT PANEL INTRODUCE ………………………………..……….. 4
4. DIAGRAM OF INVERTER ………………………………………..……. 5
5. WORKING PRINCIPLE OF INVERTER ……………………….……. 5
6. INSTALLATION AND OPERATION.…………..….….…………….. 6
7. APPEARANCE & DIMENSION...…………....……………………... 7
8. WIRING DIAGRAM.………………………………….…………………… 12
9. OPERATING……………….………………………………..………………. 13
10. COMMON FAULT ANALYSIS TABLE……………………………… 13
11. MAINTENANCE……………………………………………………………. 15
12. WARRANTY…………………………………………………………………. 16

0

1. INTRODUCTION

The pure sine wave inverter is specially designed for electricity and
communication systems.

It is a conversion device that converts electricity from the mains city
ac voltage or batteries dc voltage to a continuous and purified AC power
apply for computers and other electrical equipment.

To prepare for the instability of the city electricity and power cuts.
It also prevents various distortions of utility power, such as power supply
voltage drop, surge voltage, spike voltage, and broadcast frequency
interference.

Product code

INV/P – 125 – 1K – 230 – R

Basicv type Output power Output voltage Type
1k 1vkVA 110 110 Vac R Rack
DC input voltage 2k 2 kVA 230 2v30 Vac T Tower
024 24 Vdc 3k 3 kVA
048 48 Vdc 4k 4 kVA
110 110 Vdc 5k 5 kVA
125 12v5 Vdc 6K 6 kVA
220 220 Vdc

1

2. PRODUCT SPECIFICATION

Table 1

Model INV/P
Rating
1KVA 2KVA 3KVA 4KVA 5KVA 6KVA
Nominal voltage /
Max. current 24Vdc/38A 24Vdc/76A 48Vdc/57A 48Vdc/77A 48Vdc/98A 48Vdc/117A
48Vdc/19A 48Vdc/38A 110Vdc/24.9A 110Vdc/33.4A 110Vdc/36.6A 110Vdc/51.3A
125Vdc/7.3A 125Vdc/14.6A 125Vdc/21.8A 125Vdc/29.3A 125Vdc/32.2 A 125Vdc/41.9A
220Vdc/12.4A 220Vdc/16.7A 220Vdc/18.3A 220Vdc/22A

DC Input Voltage range 24Vdc (20~30Vdc) 48Vdc (40~64Vdc)
48Vdc (40~64Vdc) 110Vdc (90~145Vdc)
125Vdc (105~148Vdc) 125Vdc (105~148Vdc)
220Vdc (201~270Vdc)

Connections Hard-wired Connection
Efficiency
Protection (ON-OFF) ˃ 85% (Full Load) at 24 or 48 or 125VDC
Nominal voltage
Frequency DC Circuit Breaker
Protection (ON-OFF)
Utility Power Output power 110VAC or 230VAC ± 20%
(Bypass) Max. surge power
50 or 60Hz ± 3 Hz

AC Circuit Breaker

800W 1600W 2400W 3200W 4000W 4800W

1200W 2400W 3600W 4800W 6000W 7200W

Voltage 110VAC or 230VAC ± 5%

Voltage regulation *Re-settable ± 5% of rating voltage via front panel
Frequency
Waveform < 2% at Linear load
THD distortion
Inverter Crest factor 50 or 60 Hz ± 0.1% Auto sensing by AC power source
output Power factor
Cooling system Pure sine wave
Protection (ON-OFF)
< 3% at Linear load

3

0.8

Forced ventilation

AC Circuit Breaker

Short Circuit Inverter shut off,

Manual reset when the unit get back to normal

105% ~ 125% for 60 Seconds

Protection Overload 126% ~ 150% for 30 Seconds

˃151% for 1 second; Switch to bypass or shut down immediately

DC polarity reverse Not operate in case of wrong polarity
Over temperature
Acoustic warning before shut-off and auto restart and buzzer alarm

Indicator and LCD display Input/output: Voltage/Frequency, DC: Voltage
Alarm buzzer
Alarm buzzer Loading: Current/Percentage, Temp.: Core Temp/Environment Temp.
Environment Operating temp.
Storage temp. AC Input fail, DC Input fail, Inverter/Bypass, Fault/Overload
Relative humidity
-10°C to 50°C

-20°C to 60°C

0 – 90%, no moisture condensation

Note: The rate output power with error 500VA±50W; 1-10kVA is ± 100W

2

2. PRODUCT SPECIFICATION

Table 2 Model INV/P
Rating
Physical 1KVA 2KVA 3KVA 4KVA 5KVA 6KVA
Dimension
Net weight W488xD465xH88 mm (Rack type)
(Rack type)
(Tower type) W200xD500xH360 mm (Tower type) W200xD500xH500 mm (Tower type)

10 kg 11 kg 12 kg 13 kg
14 kg 15 kg 16 kg 17 kg

Remarks:

1. Due to the difference in the instrument used during the test, the range points may
be slightly deviated.

2. The input current size determines the input switch size configuration.

Explanation:

1. In order to protect the battery, the inverter can start normally only when the battery
voltage is within the START UP / Boot voltage range.

2. After the Inverter switched on and inverter can work normally within the working
voltage range work under the battery or DC power supply mode. When the battery
or DC voltage drops to the lower working voltage limit, the inverter will be power off.

3

3. FRONT PANEL INTRODUCE

AC OUTPUT : 230.0 Vac
AC LOAD : 67.0 W

ON/OFF UP/DOWN LIGHT ON BYP MAL LOW START
AC NOR HIGH RE

BEEP PAGE BLA LIN INV BAT LAD

LED indicator

Item Panel Full name Definition

1 BEEP BEEP button 1. When the buzzer sounds, press and hold for 1~2 seconds
to turn off the buzzer.

2. When the alarm is on and the buzzer is off, press BEEP
Button for 1-2 seconds to turn on the buzzer.

1. For LCD screen up and down.
2. There are three pages on the LCD screen and each page

shows two lines of content.

2 PAGE Page button First page:
Backlight button Output voltage: XXX.X Vac
C BLA Load ratio: XXX %
LIN
3 INV Second page:
4 BAT DC input: XXX.X Vdc
5 LAD AC input: XXX.X Vac
6
7 Third page:
Load power: XX.XX kW
Output frequency: XXX.X Hz

Press the backlight key (BLA), the backlight is on.

AC City Power indicator The LIN Indicator ON Mean the Inverter work in AC input
and ac output in bypass mode.

Invert indicator The INV Indicator ON Means the inverter work in DC input.

Battery indicator The BAT Indicator ON When the battery or DC input
Load indicator voltage is out the working range of the inverter.
The LAD Indicator ON when the inverter fails to work.

4

4. DIAGRAM OF INVERTER

AC Bypass Input

DC–DC Convert Inverter

DC Input AC Output
Switch

MCU
Control

Inverter diagram

5. WORKING PRINCIPLE OF INVERTER

• AC Mains bypass mode

In the AC mains bypass mode, the mains power is switched to the output
via a relay, and the mains bypass directly supplies power. When the main
fails, it automatically switches to the inverter and is powered by the
battery or DC to ensure uninterrupted power supply to the equipment.

• inverter mode

C In the inverter mode, after the DC boost inverter is reversed, it is switched
to the output via a relay and directly powered by the battery or DC. When
the inverter fails, it automatically switches to the bypass and is powered
by the mains to ensure the uninterrupted power supply of the equipment.

5

6. INSTALLATION AND OPERATION

• Check if the package is damaged

Due to passible damage to the machine during transportation, please
check the packing of the goods when receiving the goods that the goods
company is carrying. In case of any damage, please indicate on the
receipt.

• Storage

Keep it in a cool, dry, ventilated place away from highly corrosive, dusty,
hot, and humid environments. If you do not use the inverter for a long
period of time, you should be able to use it every 6 months.

• Check the machine nameplate:

Check if the specification, type, output capacity, input AC voltage, input
DC voltage, output AC voltage, etc., meet the contents specified at the
time of ordering. Check the machine for damage during transportation.

• Confirming Installation Conditions

1. No dust, choose a ventilated, clean installation environment;
2. The proper ambient temperature.
3. Relative humidity meets requirements.
4. No corrosive gas such as steam.
5. No flammable and explosive products nearby.
6. There is a power supply that complies with safety regulations.

• Connection leads

1. Make sure all switches are off.
2. Connect the host's DC input cable correctly.
3. Note the positive and negative polarity.
4. Connect the host AC input cable correctly.
5. Connect the host AC output cable correctly.
6. Connect the host to a good ground wire.

6

7. APPEARANCE & DIMENSION

Rack Type

Front and Rear View

➊

➋➌ ➍ ➊ DC Input Terminal
➋ AC Input Terminal
➏ ➌ Ground
➎➐ ➍ AC Output Terminal
➎ Inverter mode Select switch
➏ RS485
➐ Alarm Dry Contact Terminal

7

7. APPEARANCE & DIMENSION

Tower Type

Front and Rear View

➊

➋➌ ➍

➎➏
➐

➊ DC Input Terminal
➋ AC Input Terminal
➌ Ground
➍ AC Output Terminal
➎ Inverter mode Select switch
➏ RS485
➐ Alarm Dry Contact Terminal

8

7. APPEARANCE & DIMENSION

Dip Switch Setting Mode 1 AC DC
2 Main Main
10 ADDRESS 3 B0 1 0
1 CODE 4 B1 1 0
2 5 B2 1 0
3 B3 1 0
4
5

Alarm Dry Contact

AC Fail : AC Input is fault
Inv fault : Inverter is fault
DC fault : DC input is fault

Communication port RS485

A : RS485A
B : RS485B
G : Ground

9

7. APPEARANCE & DIMENSION

Front Panel ❶ Display Panel
❷ MCB AC&DC
Tower type ❸ Ventilating Fan
❶
Rack type
❷ ❷❸
❸

❶

Display Panel MCB AC&DC

❶ ❷❸

❶ Battery MCB1
❷ AC INPUT MCB2
❸ AC OUTPUT MCB3

10

7. APPEARANCE & DIMENSION

Back Panel

❶ ❶ ❶ Ventilating Fan
❷ AC&DC Terminal
❷ ❷ ❸ RS485
❸ ❸
❹ Alarm signal Terminal
❹ AC – DC Mode Selector

❹ Ventilating Fan

Tower type 125 VDC Tower type 48 VDC

❶ ❶
❷ ❷

❸ ❸
Tower type 48 VDC
Tower type 125 VDC
❶ RS485
❷ AC – DC Mode Selector
❸ Alarm signal Terminal

11

8. WIRING DIAGRAM

Port name Functional description Remark
Battery Input + DC Module Input “+” Terminal
DC Input + Battery Input DC Module Input “-” Terminal
AC Output L
DC Input - AC Output N Output Line Wire
AC Input L Output Neutral Wire
AC Output L AC Input N
Earth Input Line Wire
AC Output N Input Neutral Wire
City electricity fault
L DC Fault Earth Wire
Two points are connected when it is failure
AC Input N Invert Fault Two points are connected when it is failure
A Two points are connected when it is failure
E B
C RS485A
Dry contact RS485B
Mode selection
Communication port “1” mean AC for main input GND
“0” mean DC for main input After the operation of the dialing switch
DIP Switch BO-B3 (2-5) address code range It should be rebooting the inverter after
from 00-15. The lowest address switch "DIP switch", if not, it did not work
code is 0 and highest address code Switch the DIP switch to the digital side is 1
is 15 It can set 15pcs address code Switch the DIP Switch to the NO side is 0

(0000-1111)

Noted :

• Connect the inverter with the Earth is necessary to make sure it can safety and

normal operation of the inverter and reduce electromagnetic interference.

• The grounding wire must be grounded (GND) and the earth grounding terminal

should be as close to the instrument as possible

12

9. OPERATING

1. Switch on of the inverter (Recommend turn on the inverter switch first then switch

the load)

2. Press the “switch” button, the inverter will have 1-5seconds of “BEEP” mean the

inverter under Self-Test and it has been started-up.

3. All Inverter start up with Self-Test function, as before the inverter with stabilized

output, it should be check whether the external environment and the inverter are
normal. If the inverter and all status parameters of the utility power are normal,
the inverter power supply will work stably in the utility power or inverter state.
This process needs approximately 10 seconds.

4. Switch off (Recommend turn on the Load switch first then switch the Inverter)
5. Press the “switch” button and turn off the inverter.

10. COMMON FAULT ANALYSIS TABLE

• LED and buzzer combination status table

AC Mains output LIN INV BAT Load TEMP Beep
Inverter output
DC over voltage ON OFF ON 1s 1flash 1s 1flash
DC lower voltage OFF ON 1s 1hash ON 3s 1flash
Overload 150% 3s 1flash Without on stopping buzzer
Overload 125~150% 1s 1flash 1s 1flash 1s 1flash
Overload 100~125% 3s 1flash 3s 1flash
Over temperature ON 1s 1flash
Inverter failure 1s 1flash Without on stopping buzzer
ON

Remark :

1. Blank form indicates mean that it should be refer to related items.
2. For example: “LINE” is ON, “INV” is OFF, “BAT” flashes for 1 second, “Load” goes off, and buzzer

sounds for 1 second. IT means in the ac output state, DC input over voltage, normal load, no
over temperature.

13

10. COMMON FAULT ANALYSIS TABLE

• Fault Analysis Table

1. When the inverter fails, the red signal indicator on the front panel will be “ON”
2. According to different fault conditions appear as long and alarm or flashing.
3. You can determine the cause of the fault by looking at the indicators on the front panel and

refer to the following figure for proper handling,

Table 1

Item Fault Possible Reason Solutions

1 Battery, load, over Turn off the output due 1. Check the fan is running or not.
temperature LED, to internal overheating 2. Check the air vents are blocked or
2
3 1s 1 flash not.
4 3. The environment temperature is
5 The load LED Indicator 1. Overload more than 150%
6 too high or not.
7 ON and the buzzer 2. Internal failure to shut 4. Reduce the load.
5. Wait 10 minutes for inverter cooling
sounds down the inverter
and drop of the temperature then
Battery LED Indicator ON restart.
1. Check whether running in overload.
3s 1 flash, buzzer 3s 1 Input DC voltage is too lower 2. If yes, Reduce the load and restart.

sound Check the DC input voltage is too lower
and out of the range for the inverter
Battery LED Indicator requirements.
ON. 1s1 flash, buzzer 1s Input DC voltage is too higher Check the DC input voltage is too
higher and out of the range for the
1 sound inverter requirements.
1. Check whether running in overload.
Load LED Indicator, 3 2. If yes, Reduce the load and restart.

seconds 1 flash, buzzer 3 Overload 100~125% 1. Check if the AC mains voltage and
frequency exceed the inverter input
seconds 1 sound
2. Check whether the power switch on
The LINE Indicator OFF AC Mains voltage and the panel is switch on or not.
after connect with AC frequency exceed the input
1. Check if the DC input voltage is too
City main Power limited range lower cannot meets the requirements.

Connect DC Power source 1. The input DC voltage does not 2. Check if input polarity is reversed.
for input, turn on the meet the requirements or is
power switch and the too lower

machine does not respond 2. The input polarity is reversed.

14

10. COMMON FAULT ANALYSIS TABLE

Table 2

Item Fault Possible Reason Solutions

8 1. Select the bigger capacity circuit

9 Customer's DC input circuit 1. Select the bigger capacity breaker.
breaker cannot be switch circuit breaker. 2. Switch on the DC circuit breaker then
10
and close 2. Inverter internal circuit failure Switch on the AC circuit breaker.
causes the machine to short 3. If it still did not work mean the inverter
circuit.
internal circuit are broken or short
circuit.

1. AC Mains voltage and 1. Check whether the AC mains voltage

Cannot switch the DC and frequency exceed the Inverter frequency exceed the input range of
bypass in automatic input limited range: the inverter.
2. The dial switch (DIP Switch) on 2. Check whether the dial switch (DIP
the rear panel is set to the Switch) in corresponding position or
wrong position. not

For other fault be happen, please contact with factory after sale service support team.

.

11. MAINTENANCE

1. In order to ensure continuous normal operation of the inverter, regular
maintenance and maintenance are required.

2. The installation and storage of inverter should avoid high corrosive, high
dust, high temperature and high humidity environments as much as
possible.

3. Avoid metal material falling into the box.
4. Periodically check whether the connection line is aging and the cable

connection point is tight and safe or not.
5. Clean the cooling fan regularly and check if the fan is normal.

15

12. WARRANTY

After the day of buying the equipment, non-man-made failure, there is 1-year
warranty.
If there is failure please contact with the sellers.
The following not included in the warranty:

• Man-made failure or out of guarantee period or disassemble the cabinet

or cover of inverter without permission.

• The failure or broken cause by Force Majeure or external reason.
• Misapplication, accident, neglect, amendment or repair without

permission.

• Use goes beyond the limit.
• Break the operation instruction.

16