Y H MPS-VX 4500W Solar Hybrid Inverter User Manual

4.5KW/6.5KW
INVERTER / CHARGER

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 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 center when service or repair is required. Incorrect re-assembly may result in a risk of electric shock or fire.
4. To reduce 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 battery.
6. NEVER charge a frozen battery.
7. For optimum operation of this inverter/charger, please follow required spec to select appropriate cable size. It’s very important to correctly operate this inverter/charger.
8. Bevery cautious when working with metal tools on or around batteries. A potential risk exists to drop a tool to spark or short circuit batteries or other electrical parts and could cause an explosion.
9. Please strictly follow installation procedure when you want to disconnect AC or DC terminals. Please refer to INSTALLATION section of this manual for the details.
10. GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a permanent grounded wiring system. Be sure to comply with local requirements and regulation to install this inverter.
11. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input short circuits.
12. Warning!! Only qualified service persons are able to service this device. If errors still persist after following troubleshooting table, please send this inverter/charger back to local dealer or service center for maintenance.

INTRODUCTION

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

• Pure sine wave solar inverter
• Unique glass top cover design with 6.25inch LCD display and touchable buttons
• Built-in 150A MPPT (Max PV) solar charger
• High PV input range from 120V-450Vdc
• Smart battery charger design for optimized battery performance
• Configurable AC/Battery input priority via LCD setting
• Auto restart while PV is recovering
• Over-load , over temperature and output short circuit protection
• Cold restart function
• Built-in lithium battery automatic activation
• Communication with RS232/RS485
• WiFi monitoring function (optional)
• Anti-dust kit for harsh environment(optional)
• Restore default Settings with one click

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

• Generator or Utilty.
• PV modules (option)

Consult with your system integrator for other possible system architectures depending on your requirements.
“This inverter can power all kinds of appliances in home or office environment, including motor-type appliances such as tube light, fan, refrigerator and air conditioner. Product Overview

1. LCD display
2. Status indicator
3. Charging indicator
4. Fault indicator
5. Function touch buttons
6. Power on/off switch
7. AC input
8. AC output
9. PV input
10. Battery input
11. Circuit breaker
12. RS485/RS232 communication 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 unitx 1
• User manual x 1

Preparation
Before connecting all wirings, please take off 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 in order to allow the LCD display to be read at all times.
• 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 right 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. Battery Connection
CAUTION: For safety operation and regulation compliance, it’s requested to install a separate DC over-current protector or disconnect device between battery and inverter. It may not be requested to have a disconnect device in some applications, however, it still requested to have over-current protection installed. Please refer to typical amperage in below table as required fuse or breaker size.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It’s very important for system safety and efficient operation to use appropriate cable for battery connection. To reduce risk of injury, please use the proper recommended cable and terminal size as below. Recommended battery cable and terminal size:

Model| Typical Amperage| Battery Capacity| Wire Size| Ring Terminal| Torque Value
---|---|---|---|---|---
Cable mm2| Dimensions
D (mm)| L (mm)| M (mm)
4.5 KW 24V| 200A| 100AH| 12AWG| 35| 8| 44| 18.| 2,” 3 Nm
200AH| 24AWG| 35| 8| 44| 18.
6.5 KW 48V| 135A| 200AH| 14AWG| 22| 8| 44| 18.| 2i. 3 Nm
28AWG| 22| 8| 44| 18.

Please follow below steps to implement battery connection:

1. Assemble battery ring terminal based on recommended battery cable and terminal size.

2. Connect all battery packs as units requires.
   NOTE: Please only use sealed lead acid battery or sealed GEL/AGM lead- acid battery or lithium battery.

3. Insertthe ring terminal of battery cable fatly into battery connector of inverter and make sure the bolts are tightened with torque of 2-3 Nm. Make sure polarity at both the battery and the inverter/charge is correctly connected and ring terminals are tightly screwed to the battery terminals.

WARNING: Shock Hazard
Installation must be performed with care due to high battery voltage in series.
CAUTION!! Do not place anything between the flat part of the inverter terminal and the ring terminal, Otherwise, overheating may occur.
CAUTION! Do not apply anti-oxidant substance on the terminals before terminals are connected tightly.
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 inverter and AC input power source. This will ensure the inverter can be securely disconnected during maintenance and fully protected from over current of AC input. The recommended spec of AC breaker is for 32A for 4.5KW, 50A for 6.5KW.
CAUTION!
There are two terminal blocks with “INPUT’and “OUTPUT”markings. Please do NOT mis-connect input and output connectors.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It’s very important for system safety and efficient operation 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

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

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

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

3. Insert AC input wires according to polarities indicated on terminal block and tighten the terminal screws.
   LLINE (brown or white)
   N-—Neutral (blue or black) 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 polarities indicated on terminal block and tighten terminal screws.
   Besure to connect PE protective conductor ( ) first.
   -—Ground (yellow-green)
   LLINE (brown or white)
   N-—Neutral (blue or black)

5. Make sure the wires are securely connected.

CAUTION: Important
Be sure to connect AC wires with correct polarity. If L and N wires are connected reversely, it may cause utility short-circuited when these inverters are worked in parallel operation.
CAUTION: Appliances such as air conditioner are required 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 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 inverter and PV modules.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It’s very important for system safety and efficient operation to use appropriate cable for PV module connection. To reduce 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 (Vo) of PV modules not exceeds max. PV array open circuit voltage of inverter.
2. Open circuit Voltage (Voc) of PV modules should be higher than min. PV Array MPPT Voltage range.

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
– Vmp: 30.1Vdc
– Imp: 8.3A
– Voc: 37.7Vdc
– Isc: 8.4A
– Cells: 60| 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
8 pcs in serial| 8 pcs| 2000W
12 pcs in serial| 12 pcs| 3000W
13 pcs in serial| 13 pcs| 3250W
8 pieces in serial and 2 sets in parallel| 16 pcs| 4000W
10 pieces in serial and 2 sets in parallel| 20 pcs| 5000W

Please follow below steps to implement PV module connection:

1. Remove insulation sleeve 10 mm for positive and negative conductors.
2. Check correct polarity of connection cable from PV modules and PV in connectors. Then, connect positive pole (+) of connection cable to positive pole (+) of PV input connector. Connect negative pole (-) of connection cable to negative pole (-) of PV input connector.
3. Make sure the wires are securely connected.

Final Assembly

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

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 below chart, s on the front panel of the inverter. It includes three indicators, four function keys and a LCD display, 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.
Setting Programs:

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, MPPT charging current, MPPT charging power, battery voltage, output voltage, output frequency, load percentage, load in VA, load in Watt, DC discharging current, main CPU Version.

Operating Mode Description

SBU mode:
In the “SBU” mode, when the solar energy is not available, the battery will complement the utilty to supply the load together. With the change of the battery voltage, the Energy Rubik’s Cube wil intelligently adjust the discharge current of the battery.
To activate the Energy Rubik’s Cube, the first setting has to be “SBU”, and then set the battery voltage point back to utilty source of 13th setting according to the characteristics of the battery
When the solar energy is not available, AC output source will be intelligently adjusted according to the below chart ![Y H MPS VX 4500W Solar Hybrid Inverter

• Symbols 154](https://manuals.plus/wp-content/uploads/2023/10/Y-H-MPS-VX- 4500W-Solar-Hybrid-Inverter-Symbols-154.jpg)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. I 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 33 first. Then, you may apply this function in device by either one of following methods:

  1. Setting equalization interval in program 37.
  2. Active equalization immediately in program 39.

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 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 Equalize stage, when battery equalized time is expired and battery voltage doesn’t ise to battery equalization voltage point, the charge controller will extend the battery equalized time until battery voltage achieves battery equalization voltage. If battery voltage is stil lower than battery equalization voltage when battery equalized timeout setting is over, the charge controller will stop equalization and return to float stage.

Fault Reference Code

Warning Indicator

Warning Code| Warning Event| Audible Alarm| Icon flashing
---|---|---|---
1| Fan is locked when inverter is on.| Beep twice every second|
3| Battery is over-charged| Beep twice every second|
4| Low battery| Beep twice every second|
7| Overload| Beep twice every second|
10| Output power derating| Beep twice every second|
12| Solar charger stops due to low battery.| |
13| Solar charger stops due to high PV voltage.| |
14| Solar charger stops due to overload.| |
15| PV is weak| |

SPECIFICATIONS **

**

Table 1 Line Mode Specifications

90Vac±7V (Appliances)
Low Loss Return Voltage| 180Vaci7V (UPS);
100Vact 7V (Appliances)
High Loss Voltage| 265Vac-±7V
High Loss Return Voltage| 255Vac±7V
Max AC Input Voltage| 300Vac
Nominal Input Frequency| 50Hz / 60Hz (Auto detection)
Low Loss Frequency| 40±1Ftz
Low Loss Return Frequency| 42±1Hz
High Loss Frequency| 65±11-tz
High Loss Return Frequency| 63±IHz
Output Short Circuit Protection| Line mode: Orcult Breaker
Battery mode: Electronic Circuits
Efficiency (Line Mode)| >95% ( Rated R load, battery full charged )
Transfer Time| 10ms typical (UPS);
20ms typical (Appliances)
Output power derating:
When AC input voltage drops to 95V or 170V depending on models, the output power will be derated.| 230Vac model:

Table 2 Inverter Mode Specifications

Table 3 Charge Mode Specifications

Utility Charging Mode

INVERTER 140DEL| 4.5KW 24V| 8.5KkV 48V
Charging Current (UPS) 471 Nominal Input Voltage| 140A| 110A
Bulk Charging Voltage| Flooded Battery| 29.| 58.
AGM / Gel Battery| 28.| 56.
Floating Charging Voltage| 27Vdc| 54Vdc
Charging Algorithm| 3-Step
Charging Curve|

Solar Charging Mode

Table 4 General Specifications

TROUBLE SHOOTING

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 (<1.91V/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.Battery polarity is connected reversed.| 1.Check if batteries and the wiring are connected well.
2.Re-charge battery.
3.Replace battery.
Mains exist but the unit works in
mode.| Input voltage is displayed as 0 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. (UPS-*Appliance)
Green LED is flashing.| Set “Solar First” as the priority of output source.| Change output source priority to Utility 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 ie the ambient temperature is too high.
Fault code 02| Internal temperature 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.
Fault code 56| Battery is not connected well or fuse is burnt.| If the twittery is connected well, please return to repair center.

Appendix: Approximate Back-up Time Table

Model| Load (W)| Backup Time @ 24Vdc 100Ah (min)| Backup Time @ 24Vdc 200Ah (min)
---|---|---|---
4.5 kw| 300| 449| 1100
600| 22| 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
Model| Load (W)| Backup Time @ 48Vdc 100Ah (min)| Backup Time @ 48Vdc 200Ah (min)
---|---|---|---
6.5KW| 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

Note: 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.
* Product technical specifications are subject to change without notice.

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