PowMr POW-HVM6.2M-48V-N Hybrid Inverter User Manual

PowMr POW-HVM6.2M-48V-N Hybrid Inverter

ABOUT THIS MANUAL

Purpose
This manual describes the assembly, installation, operation and troubleshooting of this unit. Please read this manual carefully before installations and operations. Keep this manual for future reference.

Scope
This manual provides safety and installation guidelines as well as information on tools and wiring.

SAFETY INSTRUCTIONS

WARNING: This chapter contains important safety and operating instructions. Read and keep this manual for future reference.

1.  Before using the unit, read all instructions and cautionary markings on the unit, the batteries and all appropriate sections of this manual.
2. CAUTION –To reduce the risk of injury, charge only deep-cycle lead acid-type rechargeable batteries. Other types of batteries may burst, causing personal injury and damage.
3. Do not disassemble the unit. Take it to a qualified service centre when service or repair is required. Incorrect re-assembly may result in a risk of electric shock or fire.
4. To reduce the risk of electric shock, disconnect all wirings before attempting any maintenance or cleaning. Turning off the unit will not reduce this risk.
5. CAUTION – Only qualified personnel can install this device with a battery.
6. NEVER charge a frozen battery.
7. For optimum operation of this inverter/charger, please follow the required spec to select the appropriate cable size. It’s very important to correctly operate this inverter/charger.
8. Be very cautious when working with metal tools on or around batteries. A potential risk exists of dropping a tool to spark or short circuit batteries or other electrical parts which could cause an explosion.
9. Please strictly follow the installation procedure when you want to disconnect AC or DC terminals. Please refer to the INSTALLATION section of this manual for the details.
10. One piece of 150A fuse is provided as over-current protection for the battery supply.
11. GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a permanent grounded wiring system. Be sure to comply with local requirements and regulations to install this inverter.
12. NEVER cause AC output and DC input to short-circuit. Do NOT connect to the mains when DC input short circuits.
13. Warning!! Only qualified service persons can service this device. If errors persist after following the troubleshooting table, please send this inverter/charger back to the Ocal dealer or service centre for maintenance.

INTRODUCTION

This is a multi-function inverter/charger, combining functions of inverter, solar charger and battery charger to offer uninterruptible power support with portable size. Its comprehensive LCD offers user-configurable and easily accessible button operations such as battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.

Features

• Pure sine wave inverter
• Configurable input voltage range for home appliances and personal computers via LCD setting ? Configurable battery charging current based on applications via LCD setting
• Configurable AC/Solar Charger priority via LCD setting
• Compatible with mains voltage or generator power
• Auto restart while AC is recovering
• Overload/ Over temperature/ short circuit protection
• Smart battery charger design for optimized battery performance
• Cold start function

Basic System Architecture
The following illustration shows the basic application for this inverter/charger. It also includes the following devices to have a complete running system:

• Generator or Utility.
  PV modules

Consult with your system integrator for other possible system architectures depending on your requirements. This inverter can power all kinds of appliances in a home or office environment, including motor-type appliances such as tube lights, fans, refrigerators and air conditioners.

Product Overview

1. LCD display
2. Status indicator
3. Charging indicator
4. Fault indicator
5. Function buttons
6. Power on/off switch
7. AC input
8. Main output
9. Second output
10. Battery input
11. PV input
12. Anti dust kit
13. RS-232 communication port/WiFi port

INSTALLATION

Unpacking and Inspection
Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You should have received the following items inside of package:

• The unit x 1
• User manual x 1

Preparation
Before connecting all wirings, please take off the bottom cover by removing two screws as shown below.

Mounting the Unit
Consider the following points before selecting where to install:

• Do not mount the inverter on flammable construction materials.
• Mount on a solid surface
• Install this inverter at eye level to allow the LCD to be read at all times.
• For proper air circulation to dissipate heat, allow a clearance of approx. 20 cm to the side and approx. 50 cm above and below the unit.
• The ambient temperature should be between 0°C and 55°C to ensure optimal operation.
• The recommended installation position is to be adhered to the wall vertically.
• Be sure to keep other objects and surfaces as shown in the diagram to guarantee sufficient heat dissipation and to have enough space for removing wires.

SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.

Install the unit by screwing two screws. It’s recommended to use M 6 screws.

Battery Connection

• CAUTION: For safety operation and regulation compliance, it’s requested to install a separate DC over-current protector or disconnect the device between the battery and inverter. It may not be requested to have a disconnect device in some applications, however, it’s still requested to have over-current protection installed. Please refer to the typical amperage in the below table as the required fuse or breaker size.
• WARNING! All wiring must be performed by a qualified personnel.
• WARNING! System safety and efficient operation need to use appropriate cables for battery connection. To reduce the risk of injury, please use the proper recommended cable as below.

Recommended battery cable size

Please follow below steps to implement battery connection:

1. Remove insulation sleeve 18 mm for positive and negative conductors.
2. Suggest to put bootlace ferrules on the end of positive and negative wires with a proper crimping tool.
3. Connect all battery packs as below chart.
4. Insert the battery wires flatly into battery connectors of inverter and make sure the bolts are tightened with torque of 2 Nm in clockwise direction. Make sure polarity at both the battery and the inverter/charge is correctly connected and conductors are tightly screwed into the battery terminals. Recommended tool: #2 Pozi Screwdriver

WARNING: Shock Hazard Installation must be performed with care due to high battery voltage in series.

CAUTION!! Before making the final DC connection or closing DC breaker/disconnector, be sure positive ( +) must be connected to positive ( +) and negative (-) must be connected to negative (-).

AC Input/Output Connection

• CAUTION!! Before connecting to AC input power source, please install a separate AC breaker between the inverter and the AC input power source. This will ensure the inverter can be securely disconnected during maintenance and fully protected from over overcurrent of AC input. The recommended spec of AC breaker is 32A for 3.6KW/4.2KW and S0A for 6.2KW.
• CAUTION!! There are two terminal blocks with “IN” and “OUT” markings. Please do NOT disconnect input and output connectors.
• WARNING! All wiring must be performed by a qualified personnel.
• WARNING! System safety and efficient operation need to use appropriate cable for AC input connection. To reduce risk of injury, please use the proper recommended cable size as below. Suggested cable requirement for AC wires
  Model| Gauge| Cable (mm 2 )| Torque Value
  ---|---|---|---
  3.6KW/4.2KW| 12AWG| 4| 1.2 Nm
  6.2KW| lOAWG| 6| 1.2 Nm

Please follow below steps to implement AC input/output connection:

1. Before making an AC input/output connection, be sure to open the DC protector or disconnector first.

2. Remove the insulation sleeve 10mm for six conductors. And shorten phase Land neutral conductor N 3 mm.

3. Insert AC input wires according to the polarities indicated on the terminal block and tighten the terminal screws.
   WARNING:
   Be sure that AC power source is disconnected before attempting to hardwire it to the unit.

4. Then, insert AC output wires according to the polarities indicated on the terminal block and tighten the terminal screws.

5. Then, insert AC output wires according to the polarities indicated on the terminal block and tighten the terminal screws.

6. Make sure the wires are securely connected.

CAUTION: Appliances such as air conditioners require at least 2~3 minutes to restart because it’s required to have enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and recovers in a short time, it will cause damage to your connected appliances. To prevent this kind of damage, please check the manufacturer of air conditioner if it’s equipped with time-delay function before installation. Otherwise, this inverter/charger will trig overload fault and cut off output to protect your appliance but sometimes it still causes internal damage to the air conditioner.

PV Connection

CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between the inverter and PV modules.
WARNING! System safety and efficient operation need to use appropriate cable for PV module connection. To reduce the risk of injury, please use the proper recommended cable size as below.

PV Module Selection
When selecting proper PV modules, please be sure to consider below parameters:

1. Open circuit Voltage (Voe) of PV modules not exceeds max. PV array open circuit voltage of inverter.
2. Open circuit Voltage (Voe) of PV modules should be higher than min. battery voltage.
   INVERTER MODEL| 3.6KW/4.2KW| 6.2KW
   ---|---|---
   Max. PV Array Open Circuit Voltage| SOOVdc
   PV Array MPPT Voltage Range| 60Vdc~450Vdc

Take 250Wp PV module as an example. After considering above two parameters, the recommended module configurations are listed as below table.

Solar Panel Spec. (reference)

– 250Wp

| SOLAR INPUT|

Q’ty of panels

| Total input

power

|
---|---|---|---|---
(Min in serial: 6 pcs, max. in serial: 13 pcs)|
6 pcs in serial| 6 pcs| 1500W|
– Vmp: 30.Vdc|
8 pcs in serial| 8 pcs| 2000W|
– Imp: 8.3A|
12 pcs in serial| 12 pcs| 3000W|
– Voe: 37. Ndc|
13 pcs in serial| 13 pcs| 3250W|
– Isc: 8.4A|
8 pieces in serial and 2 sets in parallel| 16 pcs| 4000W|
– Cells: 60|
10 pieces in serial and 2 sets in parallel| 20 pcs| show|
 | 10 pieces in serial and 2 sets in parallel| 20 pcs| 6200W|
 | 12 pieces in serial and 2 sets in parallel| 24 pcs| 6500W|
 | 10 pieces in serial and 3 sets in parallel| 30 pcs| 7500W|

PV Module Wire Connection
Please follow below steps to implement PV module connection:

1. Remove insulation sleeve 10 mm for positive and negative conductors.
2. Suggest putting bootlace ferrules on the end of positive and negative wires with a proper crimping tool.
3. Check correct polarity of wire connection from PV modules and PV input connectors. Then, connect the positive pole(+) of the connection wire to the positive pole(+) of PV input connector. Connect negative pole(-) of connection wire to negative pole (-) of PV input connector. Recommended tool: 4mm blade screwdriver

Final Assembly
After connecting all wirings, please put the bottom cover back by screwing two screws as shown below.

Communication Connection
Wi-Fi cloud communication (option): Please use the supplied communication cable to connect to the inverter and Wi-Fi module. Download the APP and install from APP store, and Refer to “Wi-Fi Plug Quick Installation Guideline” to set up a network and register. The inverter status would be shown by a mobile phone APP or webpage of a computer.

GPRS cloud communication (option): Please use the supplied communication cable to connect to the inverter and GPRS module, and then apply external power to GPRS module. Download APP and installed from APP store, and Refer to “GPRS RTU Quick Installation Guideline” to set up the network and register. The inverter status would be shown by the mobile phone APP or webpage of the computer.

RGB Light (option)

1. Battery Mode: red Light
2. Utility Mode: Blue Light
3. PV Mode: purple Light

OPERATION

Power ON/OFF

Once the unit has been properly installed and the batteries are connected well, simply press On/Off switch (located on the button of the case) to turn on the unit.

Operation and Display Panel
The operation and display panel, shown in the below chart, is on the front panel of the inverter. It includes three indicators, four function keys and an LCD, indicating the operating status and input/output power information .

LED Indicator

Function Keys

LCD Display Icons

LCD Setting
After pressing and holding ENTER button for 3 seconds, the unit will enter setting mode. Press “UP” or “DOWN” button to select setting programs. And then, press “ENTER” button to confirm the selection or ESC button to exit .

Display Setting
The LCD display information will be switched in turns by pressing “UP” or “DOWN” key. The selectable information is switched as below order: input voltage, input frequency, PV voltage, charging current, charging power, battery voltage, output voltage, output frequency, load percentage, load in Watt, load in VA, load in Watt, DC discharging current, main CPU Version .

Operating Mode Description

Battery Equalization Description
Equalization function is added into charge controller. It reverses the buildup of negative chemical effects like stratification, a condition where acid concentration is greater at the bottom of the battery than at the top. Equalization also helps to remove sulfate crystals that might have built up on the plates. If left unchecked, this condition, called sulfation, will reduce the overall capacity of the battery. Therefore, it’s recommended to equalize battery periodically.

How to Apply Equalization Function
You must enable battery equalization function in monitoring LCD setting program 30 first. Then, you may apply this function in the device by either one of the following methods:

1. Setting equalization interval in program 35.
2. Active equalization immediately in program 36.

When to Equalize
In float stage, when the setting equalization interval (battery equalization cycle) is arrived, or equalization is active immediately, the controller will start to enter the Equalize stage.

Equalize charging time and timeout
In Equalize stage, the controller will supply power to charge battery as much as possible until battery voltage raises to battery equalization voltage. Then, constant-voltage regulation is applied to maintain battery voltage at the battery equalization voltage. The battery will remain in the Equalize stage until setting battery equalized time is arrived.

However, in the Equalize stage, when the battery’s equalized time expires and the battery voltage doesn’t rise to the battery’s equalization voltage point, the charge controller will extend the battery equalized time until battery voltage achieves battery equalization voltage. If the battery voltage is still lower than the battery equalization voltage when the battery equalized timeout setting is over, the charge controller will stop equalization and return to float stage.

Fault Reference Code

Warning Indicator

CLEARANCE AND MAINTENANCE FOR ANTI-DUST KIT

Overview

Every inverter is already installed with an anti-dusk kit from the factory. The inverter will automatically detect this kit and activate the internal thermal sensor to adjust the internal temperature. This kit also keeps dusk from your inverter and increases product reliability in harsh environments.

Clearance and Maintenance
Step 1: Please loosen the screw in counterclockwise direction on the top of the inverter.

Step 2: Then, dustproof case can be removed and take out air filter foam as shown in below chart .

Step 3: Clean air filter foam and dustproof case. After clearance, re-assemble the dust-kit back to the inverter.

NOTICE: The anti-dust kit should be cleaned from dust every one month.

SPECIFICATIONS

Table 1 Line Mode Specifications

90Vac±7V (Appliances)

Low Loss Return Voltage

| 180Vac±7V (UPS);

100Vac±7V (Appliances)

High Loss Voltage| 280Vac±7V
High Loss Return Voltage| 270Vac±7V
Max AC Input Voltage| 300Vac
Nominal Input Frequency| S0Hz / 60Hz (Auto detection)
Low Loss Frequency| 40±1Hz
Low Loss Return Frequency| 42±1Hz
High Loss Frequency| 65±1Hz
High Loss Return Frequency| 63±1Hz
Output Short Circuit Protection| Circuit Breaker
Efficiency (Line Mode)| >95% ( Rated R load, battery full charged )

Transfer Time

| lOms typical (UPS); 20ms typical (Appliances)

Output power derating:

When AC input voltage drops to 170V, the output power will be derated.

|

Table 2 Inverter Mode Specifications

INVERTER MODEL|

3.6KW

|

4.2KW

|

6.2KW

---|---|---|---
Rated Output Power| 3.6KW| 4.2KW| 6.2KW
Output Voltage Waveform| Pure Sine Wave
Output Voltage Regulation| 230Vac±5%
Output Frequency| SOHz
Peak Efficiency| 93%
Overload Protection| 3s@ 150% load; 5s@101%~150% load
Surge Capacity| 2* rated power for 5 seconds
Nominal DC Input Voltage| 24Vdc| 48Vdc
Cold Start Voltage| 23.0Vdc| 46.0Vdc
Low DC Warning Voltage

@load< 50%

@load  50%

|

22.0Vdc

21.0Vdc

|

44.0Vdc

42.0Vdc

Low DC Warning Return Voltage

@load< 50%

@load  50%

|

22.SVdc

22.0Vdc

|

45.0Vdc

44.0Vdc

Low DC Cut-off Voltage

@load< 50%

@load  50%

|

20.SVdc

20.0Vdc

|

41.0Vdc

40.0Vdc

High DC Recovery Voltage| 32Vdc| 62Vdc
High DC Cut-off Voltage| 33Vdc| 63Vdc
No Load Power Consumption| 30W| 35W| 50W

Table 3 Two Load Output Power

Table 4 Charge Mode Specifications

Utility Charging Mode

INVERTER MODEL| 3.6KW| 4.2KW| 6.2KW
Charging Algorithm| 3-Step
AC Charging Current (Max)| 1 OOAmp (@V11p=230Vac)
Bulk Charging

Voltage

| Flooded Battery| 29.2| 58.4
AGM / Gel Battery| 28.2| 56.4
Floating Charging Voltage| 27Vdc| 54Vdc

Charging Curve

|
MPPT Solar Charging Mode
INVERTER MODEL| 3.6KW| 4.2KW| 6.2KW
Max. PV Array Power| 6200W| 6500W
Nominal PV Voltage| 240Vdc| 360Vdc
PV Array MPPT Voltage Range| 60-450Vdc 90-500Vdc
Max. PV Array Open Circuit Voltage| 500Vdc
Max Charging Current

(AC charger plus solar charger)

|

120Amp

|

120Amp

|

120Amp

Table 5 Grid-Tie Operation

Maximum Conversion Efficiency

(DC/AC)

|

97%

Table 6 General Specifications

TROUBLESHOOTING

Problem| LCD/LED/Buzzer| Explanation / Possible cause| What to do
---|---|---|---
Unit shuts down automatically during startup

process.

| LCD/LEDs and buzzer will be active for 3 seconds and then

complete off.

| ****

The battery voltage is too low

( < l.91V/Cell)

| ****

1.   Re-charge battery.

2.  Replace battery.

No response after power on.

| ****

No indication.

| 1.   The battery voltage is far too low. ( <1.4V/Cell)

2. Internal fuse tripped.

| 1.  Contact repair center for

replacing the fuse.

2.  Re-charge battery.

3.  Replace battery.

Mains exist but the unit works in battery mode.

| Input voltage is displayed as O on the LCD and green LED is

flashing.

| ****

Input protector is tripped

| Check if AC breaker is tripped and AC wiring is connected well.

Green LED is flashing.

| ****

Insufficient quality of AC power. (Shore or Generator)

| 1.  Check if AC wires are too thin and/or too long.

2. Check if generator (if applied) is working well or if input voltage range setting is

correct. (UPSi:P Appliance)

Green LED is flashing.| Set “Solar First” as the priority of

output source.

| Change output source priority

to UtiIity first.

When the unit is turned on, internal relay is switched on

and off repeatedly.

| ****

LCD display and LEDs

are flashing

| ****

Battery is disconnected.

| ****

Check if battery wires are connected well.

Buzzer beeps continuously and red LED is on.

| ****

Fault code 07

| Overload error. The inverter is overload 110% and time is up.| Reduce the connected load by

switching off some equipment.

Fault code 05

| ****

Output short circuited.

| Check if wiring is connected

well and remove abnormal load.

Temperature of internal converter

component is over 120°C.

| Check whether the air flow of the unit is blocked or whether the ambient temperature is

too high.

Fault code 02| Internal temperature of inverter

component is over 100°C.

Fault code 03

| Battery is over-charged.| Return to repair center.

The battery voltage is too high.

| Check if spec and quantity of batteries are meet

requirements.

Fault code 01| Fan fault| Replace the fan.

Fault code 06/58

| Output abnormal (Inverter voltage

below than 190Vac or is higher than 260Vac)

| 1.   Reduce the connected load.

2.  Return to repair center

Fault code

08/09/53/57

| Internal components failed.| Return to repair center.
Fault code 51| Over current or surge.| ****

Restart the unit, if the error happens again, please return to repair center.

Fault code 52| Bus voltage is too low.
Fault code 55| Output voltage is unbalanced.

Appendix: Approximate Back-up Time Table

Model| Load (W)| Backup Time @ 24Vdc 100Ah (min)| Backup Time@ 24Vdc 200Ah (min)
---|---|---|---

3.6KW

4.2KW

| 300| 449| 1100
600| 222| 525
900| 124| 303
1200| 95| 227
1500| 68| 164
1800| 56| 126
2100| 48| 108
2400| 35| 94
2700| 31| 74
3200| 28| 67
3600| 25| 60
4200| 22| 53
Model| Load (W)| Backup Time @ 48Vdc 100Ah (min)| Backup Time @ 48Vdc 200Ah (min)
---|---|---|---

6.2KW

| 500| 613| 1288
1000| 268| 613
1500| 158| 402
2000| 111| 271
2500| 90| 215
3200| 76| 182
3500| 65| 141
4000| 50| 112
4500| 44| 100
5000| 40| 90
6200| 36| 80

Note:

1. Backup time depends on the quality of the battery, age of battery and type of battery. Specifications of batteries may vary depending on different manufacturers.
2. The final interpretation right of this product belongs to the company.

SHEINZHEN HEH’EJIN INDUSTRIAL CO.,LTD

• Tel/Fax:
  • + 86 7 5 5 28219903
• Email:
  • suppar@powmr.com
• Web:
  • www.powmr.com
• Add:
  • Heng,g,ang Street, Longgang !District, Shenzhen, Guangdong_ China

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