MUST PV1800 100 Percept Sine Wave Home Inviter User Manual

June 12, 2024
Must

Must logo PV1800 100 Percept Sine Wave Home Inviter
User Manual
Must PV3000 100% Pure Sine Wave Solar Inverter

WARNING!
This manual contains important instructions for all Inverter/Charger models that shall be followed during installation and maintenance of the inverter.
The following cases are not within the scope of warranty

  1. Out of warranty.
  2. Series number was changed or lost.
  3. Battery capacity was declined or external damaged.
  4. Inverter was damaged caused of transport shift, remissness, ect external factor
  5. Inverter was damaged caused of irresistible natural disasters.
  6. Not in accordance with the electrical power supply conditions or operate environment caused damage.

General Precautions
Before using it, read all instructions and markings:

  1. inverter
  2. battery
  3. user manual

CAUTION:

  1. To reduce risk of injury, charge only lead-acid rechargeable batteries. If customer use flooded batteries, batteries must be maintained regularly. Other battery types may cause damage and injury.
  2. Do not expose it to rain, snow or any type liquids. Inverters are designed for indoor use.
  3. Do not disassemble it. Take it to qualified service center when service or repair is needed.
  4. To prevent the risk of electric shock, disconnect all wiring before attempting any maintenance or cleaning. Only turning off the unit will not reduce the risk.

WARNING:

  1. Provide ventilation from the battery compartment to outdoors. The battery enclosure should be designed to prevent accumulation and concentration of hydrogen gas at the top of the compartment.
  2. NEVER charge a frozen battery and connect such 12V/24V/48V batteries to inverter.
  3. Input/output AC wiring mustn’t be less than 12AWG and not rated for 75 °C or higher. Battery cable mustn’t be rated for 75°C or higher and should be no less than 4AWG /6AWG gauge.
  4. Pay special attention when working with metal tools around batteries. Batteries short-circuiting could cause an explosion.
  5. Read the battery installation and maintenance instructions carefully before operating.

Personnel Precautions

  1. Better to prepare plenty of fresh water and soap nearby in case battery acid contacts skin, clothing or eyes.
  2. Avoid touching eyes while working near batteries.
  3. NEVER smoke or allow a spark or flame near batteries.
  4. Remove personal metal items such as rings, bracelets, necklaces, and watches when working with batteries. Batteries may provide heavy short-circuit current, which would be enough to make metal melt and causes severe burn.
  5. If a remote or automatic generator start system is used, disable the automatic starting circuit or disconnect the generator to prevent accident during servicing

It is series is very economical pure sine wave inverter, AC charger inbuilt, from 20A to 60A; Solar/AC priority is configurable, when setting solar priority, solar will charge batteries as first priority, and AC can also charge batteries when solar charger current too lower, in this way system charge is optimized best. it enables inverter to operate with all kinds of home appliances.

Features:

  • Pure sine wave output
  • Friendly user interface
  • 3 Steps charging
  • MFD (multi-function display)
  • Overload and short-circuit protection
  • Set charging voltage/charging current.
  • Battery low voltage shutdown point can be set to 10/10.5/11V
  • Power-save mode
  • Set utility priority/ Battery priority
  • Set utility input wide/narrow range
  • Inverter voltage can be set to 120V:110V/115V/120V 220V:220V/230V/240V
  • Inverter frequency can be set to 50/60Hz
  • Set utility charging on/off switch
  • 80A MPPT charger

LCD Panel Description

Must PV3000 100% Pure Sine Wave Solar Inverter - fig

  1. Switch ON/OFF: POWER ON/OFF Switch
  2. MENU
  3. UP
  4. DOWN
  5. ENTER
  6. AC LED
  7. INV LED
  8. FAULT 9. LCD

AC terminal panel printing description.

Must PV3000 100% Pure Sine Wave Solar Inverter - fig 1

  1. BAT –
  2. BAT +
  3. USB
  4. Remote port
  5. FAN
  6. Charger input protect
  7. Inverter output protect
  8. GND
  9. AC input
  10. AC output
  11. AGS
  12. BTS
  13. AC Output 10A(MAX)
  14. PV input

Installation
Unpacking and inspection
Before installation, please inspect whole unit. Be sure that nothing inside the package is damaged. You should have received the following items inside of package.
User manual X 1
Software CD X 1(Optional)
Communication cable X 1
Battery cables (RED/BLACK) X 2 (Optional)
Preparation
Before connecting all wirings, please take off bottom cover by removing eight screws as shown below:Must PV3000 100% Pure Sine Wave Solar Inverter - fig
2

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 read the LCD display clearly.
  • For proper air circulation to dissipate heat, require a clearance about 50 cm to the side and 80 cm above and below the unit.
  • The ambient temperature should be between 0°C and 40°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.

Must PV3000 100% Pure Sine Wave Solar Inverter - fig 3

DC Wiring Suggestion
It is suggested to keep battery bank as close as possible to inverter. battery cable length lm is suggested. Please find following minimum wire size. If DC cable longer than 1 m, please use thicker battery cables to bear power current going though.

Model Battery Voltage Type Wire Type
1 KW 12VDC 4AWG
24VDC 6AWG
1.5KW 12VDC 4AWG
24VDC 6AWG
2 KW 12VDC 2AWG
24VDC 4AWG
3KW 12VDC 2AWG
24VDC 3AWG
48VDC 6AWG
4 KW 24VDC 2AWG
48VDC 4AWG
5KW 24VDC 2AWG
48VDC 3AWG
6KW 24VDC 2AWG
48VDC 3AWG

Please connect cable size thicker enough, or connect several combined thin cables together to be same strong. Battery bank should be kept dose to inverter; The shorter and thicker cables, the better the system performance.
Please follow battery connection steps below: Assemble battery ring terminal. Connect all battery packs as units requires. Battery cable and terminal size suggestion: It’s suggested to connect at least 100Ah capacity battery pack for 1KW-3KW models, at least 200Ah for 4KW-6KW models.
NOTE:  Please only use sealed lead acid battery or sealed GEL/AGM lead- acid battery. Insert the ring terminal of battery cable into inverter to battery connector, make sure the bolts are tightened with torque of 2-3Nm. Pay special attention to battery back and inverter are connected rightly, also ring terminals are tightly screwed to the battery terminals.Must PV3000 100%
Pure Sine Wave Solar Inverter - fig 4

WARNING:
Shock Hazard Installation with special care is required due to high battery pack voltage.
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 antioxidant substance on the terminals before terminals are connected tightly.
CAUTION!!  Before making the final DC connection or closing DC breaker/ dis-connector, 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 inverter can be disconnected safely during maintenance and fully protected from over current of AC input. Suggestion AC breaker: 30A for 1KW- 3KW, 40A for 4KW-6KW. CAUTION!! Please don’t connect the output wring to “Grid” terminal or connect the grid wring to the “Load” terminal.
WARNING!  All wiring must be performed by a qualified personnel.
WARNING!  It’s very important to use appropriate cable for Grid connection for system safety and efficient operation . To reduce injury risk, please use the proper suggested cable size as below. AC Wiring We recommend using 10-5AWG wire to connect AC terminal block. There are 3 different ways to connect AC wire to terminal block. All wirings are CE compliant, call our tech support if you are not sure about how to wire any part of your inverter.

AC Wiring Input: Live line +Neutral + Ground Output : Live line +Neutral +Ground| Must PV3000 100% Pure Sine Wave Solar Inverter - fig
5
---|---

Suggested cable requirement for AC wires

Model Gauge Torque Value
1-3KW 12AWG 1.2-1.6Nm
4-6KW 10AWG 1.4-1.6Nm

Please follow below steps to implement Load/Grid connection:

  • Before making Load/Grid connection, be sure to open DC protector or disconnector first.
  • Remove insulation sleeve 10mm for six conductors. And shorten phase L and neutral conductor N 3mm.
  • Insert grid wires according to polarities indicated on terminal block and tighten the terminal screws. Be Sure to connect PE protective conductor(  )first.

AC INPUT Connection
 Ground (yellow-green)
LINE (brown or black)
Neutral (blue)Must PV3000 100% Pure Sine Wave Solar Inverter - fig
6

WARNING:
Be sure that AC power source is disconnected before hard-wire it to the unit.

  • Then, insert Load wires according to polarities indicated on terminal block and tighten terminal screws. Be sure to connect PE protective conductor(  )first
  • AC OUTPUT Connection
     -. Ground (yellow-green)
    L – LINE (brown or black)
    N -Neutral (blue)

Must PV3000 100% Pure Sine Wave Solar Inverter - fig 7Make sure the wires are securely connected.

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 will be triggered overload fault and cut off output to protect your appliance but sometimes it still causes internal damage to the air conditioner.\

PV Connection

Please follow below steps tp implement PV module connection:

  1. Remove insulation sleeve 10 mm for positive and negative conductors.
  2. Check correct polarity of connection cable from PV module and PV input conductors. Then connect positive pole (+) of connection cable to positive pole (+) of PV input connector. Connect negative pole (-) of connection cable to negative (-) of PV input connector.Must PV3000 100% Pure Sine Wave Solar Inverter - fig 8
  3. Make sure the wires are securely connected.

Operation

Operation key instructions:

  • Switch button to control the machine On and off.
  • There are four buttons: MENU, UP, DOWN, ENTER.
  • Via UP and DOWN can check the various parameters display.
  • Long press MENU to enter the setting menu page, MENU and ENTER turn over the menu page, UP and DOWN to set the parameters. After setting, long press ENTER 2s to exit, except the inverter frequency and inverter voltage parameters, The setting parameters are not saved to the EEPROM. The EEPROM is saved only when the parameters are normally set. (To ensure that the parameters can be successfully saved, so every time after setting the parameters need restart the machine).

Setting key instructions:

MENU Function key Function description
1 Battery/AC priority setting Utility priority(default)
If choice UTI, the inverter work in AC model until AC cut off or over the AC

range.
Battery priority| The inverter work in AC model if battery less 20set value.
The inverter work in DC model if battery more than 21set value continue lmin.
2| 110 Utility power range setting| vdE: Wide(default)| If set Wide, the AC range 70-140V.
NRU: Narrow| If set NRU, the AC range 90-140V.
220 Utility power range setting| vdE: Wide(default)| If set Wide, the AC range 140-270V.
NRU: Narrow| If set NRU, the AC range 180-270V.
3| 120V Mode Inverter voltage setting| 110V(default)| 110/115/120V
220V Mode Inverter voltage setting| 220V(default)| 220/230/240V
4| Inverter frequency setting| 50HZ(default)| 60HZ
13| AC charging setting| Rated current(default)| Range of adjustment: 10A – Max Regulation step 5A
17| Boost voltage setting| 14.1V(default)| Range of adjustment 13.8-14.5V
18| Floating charging setting| 13.5V(default)| Range of adjustment 13.5-13.7V
19| Battery low voltage shutdown point setting| 10.5V(default)| Range of adjustment 10-11V
20| SBU Battery low voltage power point| 11.5V(default)| Range of adjustment 10.5-12.0V
If you choice SBU, when the battery voltage less than value, the inverter will work in AC model
21| SBU Battery high voltage inverter point| 13.5V(default)| Range of adjustment 13V-14.0V
If you choice SBU, when the battery voltage
more than value continue lmin, the inverter
will work in DC model. i
23| LCD back light settings| LCD ON| The LCD back light on.
---|---|---|---
LCD OFF(default)| Press any button to light up continue lmin.
24| Buzzer switch settings| Buzzer ON(default)| Buzzer OFF
27| Save mode switch settings| SEN| Save mode enable
inverter is set to detect the load every 5/30 seconds
Sdi(default)| Save off
The save model disenable.
28| Search time settings in Save mode| 5s(default)| 5s inverter is set to detect the load every 5 seconds.
30s inverter is set to detect the load every 30 seconds.
29| AC charging switch settings| AC charging on(default)| AC charging off
30| PV Boost voltage setting| 14.2V(default)| Range of adjustment 13.8-14.5V
31| PV Floating charging setting| 13.5V(default)| Range of adjustment 13.5-13.7V
UP| Page up key| |
DOWN| Page down key| |
ENTER| Confirm the exit key| |

LCD display:

Must PV3000 100% Pure Sine Wave Solar Inverter - fig
10Must PV3000 100% Pure Sine Wave Solar
Inverter - fig 11

AGS function
AGS function information
The AGS function is that the inverter will start the generator automatically via the dry contact when the battery is low voltage .
Note:
The generator must have dry contact functin .
If you connect AC grid and Generator to Inverter input at the same time, the interlockd evice should be installed between generator output and inverter input . (To ensure the utility and generator will not provide power to inverter at the same time. It doesn’t need t o be installed ifonly connect generator).
Must PV3000 100% Pure Sine Wave Solar Inverter - fig
12 Dry contact operating voltage

Set Low Shutdown Voltage Operation Voltage Restoring Voltage
10V/20V/40V DC<10.5V/21V/42V DC> 13.5V/27V/54V
10.5V/21V/42V DC<11V/22V/44V DC> 13.5V/27V/54V
11V/22V/44V DC< 11.5V/23V/46V DC> 13.5V/2N/54V

That is when the dry contact is engaged at DC<set low shutdown point + 0.5V (battery low voltage warning point), at DC>13.5V. (12V model)
BTS function BTS function description:

  • The inverter collects the battery temperature through the BTS port, based on 25°Cwith each rise of 1°C , the charging voltage drops by 18mV/1 at the set charging voltage (up to 60°C). BTS down charge voltage is based on drops of boost voltage and float voltage.
  • Using an optional battery temperature cable to connect the inverter and battery.

Must PV3000 100% Pure Sine Wave Solar Inverter - fig
13

Communication

Computer Monitoring directions

  • use the monitoring software: SolarPowerMonitor for communication. This software supports the communication function for various models of our company.
  • The software will send the COM Port and inverter model automatically.

The operation steps are as follows

  • Connect the Inverter to Computer with USB cable.

Must PV3000 100% Pure Sine Wave Solar Inverter - fig
14

Install the software: Solar Power Monitor
Put the CD in the computer CD driver,Choose Solar Power Monitor.exe and install communication Open the PowerMonitor,turn on the machine.

The SolarPowerMonitor will auto scan communication port.Must PV3000 100%
Pure Sine Wave Solar Inverter - fig 16

Wait for a moment, Power Monitor will work normally.
Monitor software function operation Specific function Operations of the monitoring software, please refering to the HELP docs after the connection is successful.

Specifications

Inverter Mode Specification

Rated power(W) 1KW I 1.5KW I 2KW 1 3KW I 4KW I 5KW I 6KW
Power Factor 1
Wave form Pure sine wave
Output voltage RMS 110V/115V/120VAC(220V/230V/240VAC)±10%
Output frequency 50HZ or 60HZ (±0.3HZ)
Inverter efficiency(peak) >80%
Overload 100%<Load<110% (alarm 5min then stop output and fault code 07)

110%<Load<125% (alarm 60s then stop output and fault code 07)
Load> 125% (alarm lOs then stop output and fault code 07)
Surge rating| 3000VA| 4500VA| 6000VA| 9000VA| 12000VA| 15000VA| 15000VA
---|---|---|---|---|---|---|---
Capable of starting| | | | |
electric motor| 1P| 1.5P| 1.5P| 2P| 3P
Battery voltage| 12VDC/24VDC| 24VDC/48VDC
| (low voltage fault code04)
| 10/10.5/11V for 12V model
Low battery cut off| 20/21/22V for 24V model
| 40/42/44V for 48v model
| Add 0.5V/battery: (low battery alarm one second one time)
Low battery alarm| (10/10.5/11V) +0.5Vdc for 12V model
| (20/21/22V) +1Vdc for 24v model
| (40/42/44V) +2Vdc for 48v model
| Add +1V/battery: (high voltage one second one time/after 30s fault 03)
| (13.8-14.5V) + 1V for 12V model
High voltage alarm| (27.6-29V) + 2V for 24v model
| (55.2-58) + 4V for 48v model
Save mode| Load5.50±20W(120V)/100±20W(220V)
Operating Temperature Range| -0°C to 40°C
Storage Temperature| -15°C— 60°C
Audible Noise| 60db max

AC Mode Specification
AC parameter

Input waveform Pure sine wave
Nominal input voltage 120/230Vac (±3%)
Max input voltage 140/270Vac MAX
Input frequency 50HZ/60HZ (auto sensing)
Output waveform Same as input waveform
Overload protection Breaker + software protection
Output short circuit Breaker+ software protection
Efficiency(AC mode) >95%® load, full battery)
Transfer time AC TO DC 15ms(max)
Transfer time DC TO AC 15ms(max)

AC input voltage range: (+5V)

model range Low cutoff Low recover High cutoff High recover
120V narrow AC<90V AC>95V AC>140V AC<135V
F<40HZ F>45HZ F>70HZ F<65HZ
wide AC<70V AC>75V AC>140V AC<135V
F<40HZ F>45HZ F>70HZ F<65HZ
220V narrow AC<180V AC>190V AC>270V AC<265V
F<40HZ F>45HZ F>70HZ F<65HZ
wide AC<140V AC>150V AC>270V AC<265V
F<40HZ F>45HZ F>70HZ F<65HZ

Charge Mode Specifications
Max charge current: (+5A)

model 1K 1.5K 2K 3K 4K 5K 6K
12V 30A 45A 60A 60A
24V 20A 25A 30A 40A 60A 60A 60A
48V 20A 20A 20A 20A 30A 35A 40A

Min charge current 10A. change by every 5A.

Charge mode AC range:

Setting Low voltage Charge mode recover Charge mode
120V AC wide range AC> 135V Stop charge AC<130V Charge recover
AC<75V Stop charge AC>80V Charge recover

40<F<70HZ charge
220V AC wide range| AC>265V| Stop charge| AC<260V| Charge recover
AC<155V| Stop charge| AC> 160V| Charge recover
40<F<70HZ charge

Solar charger(MPPT controller) electrical specification

Type MPPT-80A
Nominal system voltage 12V/24/48V(auto detection);
Maximum charge current 80A±4A
Battery voltage 12V
Maximum solar input voltage 100±2V
PV array MPPT voltage range 15-95V
Maximum input power 1250W
Charging stages Bulk,absorption,float
Over charging voltage 15.5V/30.0V/45.0V/60.0V
Over charging comeback voltage 14.5V/29.5V/44.5V/59.0V
Battery defect voltage 10.0V/17.0V/25.5V/34.0V
Charging curve ![Must PV3000 100% Pure Sine Wave Solar Inverter - fig

17](https://manuals.plus/wp-content/uploads/2022/11/Must-PV3000-100-Pure-Sine- Wave-Solar-Inverter-fig-17.png)

Charge mode:

Charge current adjustable| Charge cureent adjustable: 10A—max (adjust by every 5A)
---|---
Battery voltage| 10-14.5Vdc/20-29Vdc/40-58Vdc
Short circuit protection| breaker
Over charge protection| Bat V?tharge voltage+1V/battery,ls 1 time for 30s then alarm 03
rule| Boost CC –Boost CV –Boost FV
Charge Stage Transition Definition| Boost CC Stage: If NC input is applied, the charger will run at full current in CC mode until the charger reaches the boost voltage.
Boost CV Stage: the charger will keep the boost voltage in Boost CV mode until the charge current less 6A continue lminute or keep the boost voltage time more than 2hours . Then drop the voltage down to the float voltage.
Float Stage: In float mode, the voltage will stay at the float voltage. If the A/C is reconnected , the charger will reset the cycle above.

Fault Mode
LED instruction

LED LED state information
LED AC(green) Off No AC input
On AC normal
Blink AC over range
LED Inv(yellow) On Inverter mode
LED Fault(red) Off normal
On fault
Blink caution

BUZZER instruction

Buzzer state information
Buzzer off normal
Buzzer beep caution
Buzzer on fault

LCD display instruction
When inverter alarm, even it back to recovery mode. We must restart inverter to clear fault .

Fault code Fault Fault instruction
Fan fault Fan stop run
Over temperature BTS over temperture:

T,„„,,,,,>65°C is 1 time for lmin then fault alarm 02; T,<60°C recovery Inverter over temperture:
T„>90°C lsltime for lmin then fault alarm 02; T,„<85°C recovery
| DC voltage too high| Battery over voltage:
CD >V(than3,,,,,,,,,„„„)„„alarm for 30s then fault code 03
Over voltage recovery:
DC<V(0„9„,te+IV).0.2v/I2V
| DC voltage too low| Low voltage alarm: DC<Vozo(f+0,wym Alarm recovery:nr, t 1
1-1%–> v (Cute +0.5).0VIN
Low voltage fault: DC<V,,,,,,,, fault code 04
| Output short circuit in DC model| Output short circuit: short circut test fault 05
| Output over voltage| Output over voltage:
Vou„„>135V/270V 500ms fault 06
| Output over load| overload:
100%<Load<110% alarm per every second (5min later inverter cutoff output and fault 07)
110%<Load<125% alarm per every second (60s later inverter cutoff output and fault 07)
Load>125% alarm per every second (10s later cut off output and fault 07)
| Output over current| Inverter Output over current:
1-3K: I„>40A. 4-6K: I,>80A 200ms fault 51
| Output low voltage in DC model| Output low voltage: VO,,p,<85V/170V 500ms fault 58

Trouble shooting

If machine enters into fault mode, please remove input power. And according to the table , deal with the following problems.

LED/Buzzer LCD Explanation / Possible cause What to do
Buzzer beeps continuously and red LED is on Fault code 01 Fan stop run

Check the fan.
Fault code 02| Temperature of machine is too high.| Power off and waiting for minute
Fault code 03| Battery voltage is too high.| Check the battery specifications
Fault code 04| Battery voltage is too low.| Check the battery specifications
Fault code 05| Output short circuited| Remove your load and restart
Fault code 06| Inverter output voltage is high.| Return to repair center
Fault code 07| Over load| Decrease your load
Fault code 51| Output over current| Check if wiring is connected well and remove abnormal load.
Fault code 58| Output voltage is too low.| Decrease your load

MPPT controller warning:

Warn code Warn information Warn information specification What to do
Hard ware protection Return to repair center
Over current
Current sensor error
MPPT controller over temperature Stop PV charge soon
PV voltage too high Check PV
PV voltage too low
Battery voltage too high Check battery
Battery voltage too low
Current is unconrollable Return to repair center
Parameter error
MPPT controller fan Check MPPT fan

USER’S MANUAL
OPA eas
Please download the software “SolarPowerMonitor2.2.81”.

Must PV3000 100% Pure Sine Wave Solar Inverter - qr
codehttps://share.weiyun.com/mwa7gxWmMust
PV3000 100% Pure Sine Wave Solar Inverter - qr code 1https://bit.ly/2UQgNc6
4200-030001-02A1

Documents / Resources

| MUST PV1800 100 Percept Sine Wave Home Inviter [pdf] User Manual
PV1800 100 Percept Sine Wave Home Inviter, PV1800, 100 Percept Sine Wave Home Inviter, Wave Home Inviter, Home Inviter, Inviter
---|---

References

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