PowMr POW-HVM11K-48V All-in-One Solar Inverter User Manual
This manual provides assembly, installation, operation, and troubleshooting guidance for the PowMr POW-HVM11K-48V All-in-One Solar Inverter Charger.
About This Manual
This manual details the assembly, installation, operation, and troubleshooting of the unit. Please read it carefully before use and keep it for future reference.
Safety Instructions
WARNING: This chapter contains important safety and operating instructions. Read and keep this manual for future reference.
- Read all instructions and cautionary markings on the unit, batteries, and manual before use.
- CAUTION: To reduce injury risk, charge only deep-cycle lead-acid rechargeable batteries. Other types may burst.
- Do not disassemble the unit. Service or repair requires a qualified service center. Incorrect re-assembly may risk electric shock or fire.
- CAUTION: Disconnect all wiring before maintenance or cleaning. Turning off the unit does not eliminate this risk.
- CAUTION: Only qualified personnel can install this device with a battery.
- Never charge a frozen battery.
- Use the specified cable size for optimal operation and safety.
- Be cautious when working with metal tools around batteries to avoid sparks or short circuits that could cause an explosion.
- Follow installation procedures carefully when disconnecting AC or DC terminals. Refer to the INSTALLATION section.
- The fuse provides over-current protection for the battery supply.
- GROUNDING INSTRUCTIONS: Connect to a permanent grounded wiring system, complying with local requirements.
- Never cause AC output and DC input to short circuit. Do not connect to the mains during DC input short circuits.
- Warning: Only qualified service personnel should service this device. If errors persist after troubleshooting, contact a local dealer or service center.
Introduction
This is a multi-function inverter/charger combining inverter, MPPT solar charger, and battery charger functions for uninterruptible power support. Its comprehensive LCD display offers user-configurable settings for charging current, AC/solar charger priority, and input voltage.
Features
- Pure sine wave inverter
- Inverter running without battery
- Built-in MPPT solar controller
- Configurable input voltage range via LCD setting
- Configurable battery charging current via LCD setting
- Configurable AC/Solar Charger priority via LCD setting
- Compatible with mains voltage or generator power
- Auto restart when AC recovers
- Overload/Over temperature/short circuit protection
- Smart battery charger design for optimized battery performance
- Cold start function
Basic System Architecture
The system includes a generator or utility, PV modules (optional), and external battery packs. This inverter can power various home and office appliances.
Product Overview
The front panel features an LCD display, status indicators, charging indicators, fault indicators, function buttons, and a power on/off switch. Rear connections include battery terminals, RS232 and RS485 communication ports, dry contact port, PV inputs, AC input, AC output, and a grounding point.
Note: RS232 communication ports (DB9 and RJ45) cannot be used simultaneously.
Installation
Unpacking and Inspection
Inspect the unit upon arrival to ensure no damage. The package should contain: 1x Unit, 1x User manual, 4x PV connector, 1x Battery fuse.
Preparation
Before wiring, remove the bottom cover by unscrewing four screws.
Mounting the Unit
- Do not mount on flammable materials.
- Mount on a solid surface.
- Install at eye level for easy LCD readability.
- Maintain an ambient temperature between 0°C and 55°C for optimal operation.
- Mount vertically against a wall.
- Ensure sufficient clearance for heat dissipation and wire access as shown in the diagram (50cm top/bottom, 20cm sides).
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACES ONLY.
Install the unit using M4 or M5 screws.
Battery Connection
CAUTION: Install a separate DC over-current protector or disconnect device between the battery and inverter for safety and compliance. Refer to the table for required fuse or breaker size.
WARNING: All wiring must be performed by a qualified personnel.
WARNING: Use appropriate cable size for battery connection to ensure safety and efficiency.
Recommended battery cable and Terminal size
| Model | Maximum Amperage | Battery capacity | Wire Size | Cable mm2 | Terminal size(mm) L x W x D | Torque value |
|---|---|---|---|---|---|---|
| 8.5KW | 180A | 400AH | 4AWG*2 | 25 | 37 x 22 x 8.4 | 10~12 Nm |
| 11.0KW | 220A | 600AH | 2AWG*2 | 38 | 37 x 22 x 8.4 | 10~12 Nm |
Steps for battery connection:
- Make positive and negative cables according to recommended terminal size.
- Connect battery packs as required, using recommended battery capacity.
- Insert battery cable into the inverter connector and tighten bolts to 10-12Nm. Ensure correct polarity at both battery and inverter, and that cables are securely tightened.
WARNING: Shock Hazard Installation requires care due to high battery voltage in series.
CAUTION: Do not place anything between the inverter terminal flat part to avoid overheating.
CAUTION: Do not apply anti-oxidant substance on terminals before they are connected tightly.
CAUTION: Ensure correct polarity when making final DC connection: positive (+) to positive (+), negative (-) to negative (-).
AC Input/Output Connection
CAUTION: Install a separate AC breaker (recommended 63A) between the inverter and AC input power source for disconnection during maintenance and over-current protection.
CAUTION: Do not mis-connect input and output connectors, which are marked with “IN” and “OUT”.
WARNING: All wiring must be performed by a qualified personnel.
WARNING: Use appropriate cable size for AC input connection.
Suggested cable requirement for AC wires
| Model | Gauge | Torque Value |
|---|---|---|
| All Model | 6 AWG | 1.2~1.4Nm |
Steps for AC input/output connection:
- Open DC protector or disconnector before making AC connections.
- Remove 10mm insulation sleeve from conductors. Shorten phase L and neutral N conductors by 3mm.
- Connect AC input wires to the terminal block according to polarity: PE (yellow-green) first, then L (brown or black), and N (blue). Tighten terminal screws.
- Connect AC output wires similarly: PE first, then L, and N. Tighten terminal screws.
- Ensure all wires are securely connected.
CAUTION: Important Connecting AC wires with incorrect polarity (L and N reversed) may cause utility short-circuiting during parallel operation.
CAUTION: Appliances like air conditioners require 2-3 minutes to restart after power fluctuations to balance refrigerant. If a power shortage occurs and recovers quickly, it can damage appliances. Check if the air conditioner has a time-delay function. Otherwise, the inverter/charger may trigger overload faults, cutting off output to protect the appliance, but internal damage may still occur.
PV Connection
CAUTION: Install a DC circuit breaker between the inverter and PV modules before connecting.
WARNING: All wiring must be performed by a qualified personnel.
WARNING: Use appropriate cable size for PV module connection.
Suggested cable requirement for PV wires
| Model | Typical Amperage | Cable Size | Torque |
|---|---|---|---|
| All Model | 18A*2 | 10 AWG | 1.4~1.6 Nm |
PV Module Selection
Consider the following when selecting PV modules:
- Open circuit Voltage (Voc) must not exceed the inverter's max PV array open circuit voltage.
- Open circuit Voltage (Voc) must be higher than the minimum battery voltage.
Solar Charging Mode Specifications
| INVERTER MODEL | 8.5KW | 11.0KW |
|---|---|---|
| Max. PV Array Open Circuit Voltage | 500VDC | |
| PV Array MPPT Voltage Range | 60VDC~500VDC | |
| Max. PV INPUT CURRENT | 18A*2 | 18A*2 |
Example Configuration for 450Wp and 550Wp PV Modules:
450Wp Solar Panel Spec.
| SOLAR INPUT | Q'ty of panels | Total input power | Inverter Model |
|---|---|---|---|
| 3 pcs in serial | 3 pcs | 1,350 W | All Model |
| 4 pcs in serial | 4 pcs | 1,800 W | |
| 5 pcs in serial | 5 pcs | 2,250 W | |
| 6 pcs in serial | 6 pcs | 2,700 W | |
| 7 pcs in serial | 7 pcs | 3,150 W | |
| 8 pcs in serial | 8 pcs | 3,600 W | |
| 9 pcs in serial | 9 pcs | 4,050 W | |
| 10 pcs in serial | 10 pcs | 4,500 W | |
| 11 pcs in serial | 11 pcs | 4,950 W | |
| 12 pcs in serial | 12 pcs | 5,400 W |
550Wp Solar Panel Spec.
| SOLAR INPUT | Q'ty of panels | Total input power | Inverter Model |
|---|---|---|---|
| 3 pcs in serial | 3 pcs | 1,650 W | All Model |
| 4 pcs in serial | 4 pcs | 2,200 W | |
| 5 pcs in serial | 5 pcs | 2,750 W | |
| 6 pcs in serial | 6 pcs | 3,300 W | |
| 7 pcs in serial | 7 pcs | 3,850 W | |
| 8 pcs in serial | 8 pcs | 4,400 W | |
| 9 pcs in serial | 9 pcs | 4,950 W |
PV Module Wire Connection
Steps:
- Remove 10mm insulation sleeve from positive and negative conductors.
- Check polarity of connection cables and PV input connectors. Connect positive (+) to positive (+) and negative (-) to negative (-).
- Ensure wires are securely connected.
Final Assembly
After connecting all wiring, replace the bottom cover and secure it with two screws.
Dry Contact Signal
A dry contact (3A/250VAC) on the rear panel provides signals. When program 16 of F0 is set to “Model1”, it signals external devices when battery voltage reaches a warning level. When set to “Model2” and the unit operates in battery mode, it can trigger a grounding box to connect neutral and grounding of AC output.
Dry Contact Port Configuration
| Unit Status | Condition | Dry contact port: NC & C / NO & C | |
|---|---|---|---|
| Power Off | Unit is off and no output is powered. | Close | Open |
| Power On | Output is powered from Utility. | Open | Close |
| Program 1 of F1 set as SUB | Battery voltage or Soc < Low DC warning voltage or Soc | Open | Close |
| Program 1 of F1 set as SUB | Battery voltage or Soc > setting value program 5 of F2 or battery charging reaches floating stage | Close | Open |
| Program 1 of F1 set as SBU | Battery voltage < Setting value program 5 of F2 | Open | Close |
| Program 1 of F1 set as SBU | Battery voltage > setting value program 6 of F2 or battery charging reaches floating stage | Close | Open |
When program 16 of F0 is set as “Model2”
| Unit Status | Condition | Dry contact port: NC & C / NO & C | |
|---|---|---|---|
| Power Off | Unit is off and no output is powered. | Close | Open |
| Power On | Unit works in standby mode, line mode or fault mode | Open | Close |
| Unit works in battery mode or power saving mode | Open | Open | |
Operation
Power ON/OFF
After installation and battery connection, press the On/Off switch to turn on the unit.
Operation and Display Panel
The front panel includes three LED indicators (AC/INV, CHG, FAULT), four function keys (ESC, UP, DOWN, ENTER), and an LCD display for operating status and power information.
LED Indicator
| LED Indicator | Color | Status | Messages |
|---|---|---|---|
| AC/INV | Green | Solid On | Output is powered by utility in Line mode. |
| Flashing | Output is powered by battery or PV in battery mode. | ||
| CHG | Green | Solid On | Battery is fully charged. |
| Flashing | Battery is charging. | ||
| FAULT | Red | Solid On | Fault occurs in the inverter. |
| Flashing | Warning condition occurs in the inverter. |
Function Keys
| Function Key | Description |
|---|---|
| ESC | To exit setting mode |
| UP | To go to previous selection |
| DOWN | To go to next selection |
| ENTER | To confirm the selection in setting mode or enter setting mode |
LCD Display
The LCD displays input/output voltage, frequency, power, battery status, and PV information.
LCD Setting
- Press and hold ENTER for 3 seconds to enter setting groups mode.
- Use UP or DOWN to select setting groups (F0-F4). Press ENTER to confirm or ESC to exit.
- F0: General parameters
- F1: AC output parameters
- F2: Battery parameters
- F3: Time parameters
- F4: System parameters
- Press ENTER to confirm selection or ESC to return/exit.
Setting F0 Programs
| Program | Description | Appliances (default) | Selectable option |
|---|---|---|---|
| 01 | AC input voltage range | APL | If selected, acceptable AC input voltage range will be within 90-280VAC. |
| UPS | If selected, acceptable AC input voltage range will be within 170-280VAC. | ||
| Generator (GNE) | If selected, acceptable AC input voltage range will be within 170-280VAC and compatible with generators. Note: Generator output may be unstable. | ||
| 02 | Power saving mode enable/disable | Saving mode disable (default) | If disabled, inverter output is unaffected by connected load status. |
| Saving mode enable | If enabled, inverter output turns off when connected load is low or not detected. | ||
| 03 | Overload bypass: When enabled, the unit transfers to line mode if overload occurs in battery mode. | Bypass disable (default) | Bypass enable (default) |
| 04 | Auto restart when overload occurs | Restart disable (default) | Restart enable (default) |
| 05 | Auto restart when over temperature occurs | Restart disable (default) | Restart enable (default) |
| 06 | Auto bypass: When mains power is normal, it bypasses automatically, even if the switch is off. | Manual (default) | Auto |
| 07 | Auto return to default display screen | Return to default display screen (default) | If selected, the display automatically returns to the default screen after 1 minute of inactivity. |
| Stay at latest screen | If selected, the display stays on the last viewed screen. | ||
| 08 | Backlight control | Backlight on (default) | Backlight off |
| 09 | Buzzer mode | Mode1 (default) | Mode 2: Buzzer sounds for input source changes or warnings/faults. Mode 3: Buzzer sounds for specific warnings/faults. Mode 4: Buzzer sounds for faults. |
| 10 | Modbus ID Setting | Modbus ID Setting Range: 001(default)~247 | |
Setting F1 Programs: Output Source Priority
| Program | Description | Selectable option | |
|---|---|---|---|
| 01 | Output source priority | SUB priority (default) | Solar->Utility->Battery: Solar charges first, then powers loads. If solar is insufficient, Utility powers loads simultaneously. |
| SBU priority | Solar-> Battery ->Utility: Solar powers loads first. If solar is insufficient, battery powers loads simultaneously. Utility powers loads only when battery voltage is low or set point is reached. | ||
| SUF priority | Solar->Utility->Battery: If solar is sufficient for loads and battery charging, excess solar can feed back to the grid. If solar is insufficient, Utility powers loads. |
Setting F1 Programs: Output Voltage and Frequency
| Program | Description | Selectable option | |
|---|---|---|---|
| 03 | Output voltage | 220V, 240V | 230V (default) |
| 04 | Output frequency | 50Hz (default), 60Hz | |
| 05 | Salve output source priority | OFF (default) | Turn off salve output source priority. |
| 06 | Salve output source priority: The priority is available after setting application period, the units will turn to salve priority in the setting period from main priority. | SUB priority | The function is the same as in program 01 of F1. |
| SBU priority | |||
| 07 | Start timer setting for salve output source priority - Hours setting | 00 - 23 | |
| 08 | Start timer setting for salve output source priority - Minutes setting | 00 - 59 | |
| 09 | End timer setting for salve output charger priority - Hours setting | 00 - 23 | |
| 10 | End timer setting for salve charger source priority - Minutes setting | 00 - 59 | |
Setting F2 Programs: Battery Type and Charging
| Program | Description | Selectable option | |
|---|---|---|---|
| 01 | Battery type | AGM (default) | Flooded |
| User-Defined | User-defined voltage and cut-off voltage can be set in program 03/04/08 of F2. | ||
| Li.2, Li.4, Li.6 | Support PYLON US2000 Protocol (3.5 Version) | ||
| Standard communication Protocol 2 | Standard communication Protocol 2 from inverter supplier | ||
| LIB | For lithium battery, default values are set for battery without communication. Charge voltage and low DC cut-off voltage can be set in program 03/04/08 of F2. | ||
| 02 | Charger source priority: To configure charger source priority | Solar first (default) | Solar energy charges battery first. Utility charges battery only when solar is not available. |
| Solar and Utility (default) | Solar energy and utility charge battery simultaneously. | ||
| Only Solar | Solar energy is the only charging source, regardless of utility availability. | ||
| Solar residual | Solar energy powers loads first, residual energy charges the battery. | ||
| 03 | Bulk charging voltage (C.V voltage) | 56.4V (default) | If self-defined or LIB is selected in program 01 of F2, this program can be set up. Setting range is from program 04 of F2 to 62.0V. |
| 04 | Floating charging voltage | 54.0V (default) | If self-defined or LIB is selected in program 01 of F2, this program can be set up. Setting range is from 48.0V to program 03 of F2. |
| 05 | Setting voltage or Soc point back to utility source when selecting "SBU priority". | Lithium battery without communication: Default : 46V | Setting range is from 44.0V to 57.2V, but max setting value must be less than program 06 of F2, and min setting value must be more than program 08 of F2. |
| Lithium battery with communication: Default : 50% | Setting range is from 5% to 50%, but min setting value must be more than program 08 of F2 plus 2%. | ||
| 06 | Setting voltage point back to battery mode when selecting "SBU priority" in program 01(F1). | Battery fully charged (default) | If selected, acceptable voltage range is from 48V to program 03 of F2, but min setting value must be more than program 05 of F2. |
| 08 | Low DC cut-off voltage or Soc | Default 95% | Setting range is from 60% to 100%. |
| If self-defined or LIB is selected in program 01 of F2, default value is 42.0V, setting range is from 40.0V to 54.0V, max setting value must be less than program 05 of F2. | If LIx is selected in program 01 of F2 and communication is successful, default value is 20%, setting range is 3%~30%, but value must be less than program 05 of F2. | ||
| 09 | Maximum charging current: To configure total charging current for solar and utility chargers. (Max. charging current = utility charging current + solar charging current) | 8.5KW Model: 80A (default) | 8.5KW Model: Acceptable charging current range is 10-140A, but not less than AC charging current (program 10 of F2). |
| 11.0KW Model: 160A (default) | 11.0KW Model: Acceptable charging current range is 10-160A, but not less than AC charging current (program 10 of F2). | ||
| 10 | Maximum utility charging current | 60A (default) | Acceptable charging current range is 5-120A, but max setting value must be less than program 09 of F2. |
| 11 | Slave charger source priority | OFF (default) | Turn off slave charger source priority. |
| Solar first | The function is the same as in program 02 of F2 group. | ||
| Solar and Utility (default) | |||
| Only Solar | |||
| Solar residual | |||
| 12 | Start timer setting for slave charger source priority - Hours setting | 00 - 23 | |
| 13 | Start timer setting for slave charger source priority - Minutes setting | 00 - 59 | |
| 14 | End timer setting for salve output charger priority - Hours setting | 00 - 23 | |
| 15 | End timer setting for salve charger source priority - Minutes setting | 00 - 59 | |
| 16 | Bulk charging time (C.V stage) | Automatically (Default): 5 min | The setting range is from 5 min to 900 min. Increment of each click is 5 min. If "USE" is selected in program 01 of F2 group, this program can be set up. |
| 900 min | |||
| 17 | Battery equalization | Battery equalization EEN | Battery equalization disable (default) Ed5 |
| If "Flooded" or "User-Defined" is selected in program 01 of F2, this program can be set up. Default setting is 58.4V. | |||
| 18 | Battery equalization voltage | 58.4V | Setting range is from 48V~ 62V. Increment of each click is 0.1V (minimum value should be greater than floating recharge value). |
| 19 | Battery equalized time | 60min (default) | Setting range is from 0min to 900min. Increment of each click is 5min. |
| 20 | Battery equalized timeout | 120min (default) | Setting range is from 0min to 900 min. Increment of each click is 5 min. |
| 21 | Equalization interval | 30days (default) | Setting range is from 1 to 90 days. Increment of each click is 1 day. |
| 22 | Equalization activated immediately | Enable REN | Disable (default) Ed5 |
Setting F2 Programs: Lithium Battery Settings
| Program | Description | Selectable option | |
|---|---|---|---|
| 23 | Manual activate the lithium battery setting | Active ACE | Default: disable activation. When program 01 of F2 is selected “LIx” as lithium battery, and the battery is not detected, you can select this to activate it. |
| 24 | Automatic activation for lithium battery | Auto Ato | Default: disable activation. When program 01 of F2 is selected “LIx” as lithium battery, and the battery is not detected, the unit or PV will activate automatically. Restart the unit to activate automatically. |
| 25 | Max battery discharge current setting | OFF (default) | When battery discharge current exceeds the setting value, the unit stops discharging and enters bypass or standby mode. Setting range is from 50 to 500. |
Setting F3 Programs: Time Setting
| Program | Description | Selectable option | |
|---|---|---|---|
| 01 | Time setting - Year | 000,001...099 | For year setting, the range is from 00 to 99. |
| 02 | Time setting - Month | 001,002...012 | For month setting, the range is from 1 to 12. |
| 03 | Time setting - Day | 001,002...031 | For day setting, the range is from 1 to 31. |
| 04 | Time setting - Hour | 000,001...023 | For hour setting, the range is from 0 to 23. |
| 05 | Time setting - Minute | 000,001...059 | For minute setting, the range is from 0 to 59. |
| 06 | Time setting - Second | 000,001...059 | For second setting, the range is from 0 to 59. |
Setting F4 Programs: Data Reset
| Program | Description | Selectable option | |
|---|---|---|---|
| 01 | Reset all stored data of PV generated power and output load energy | Reserve data(default) No | Reset generated energy data YES |
LCD Display Description
Information on the LCD display can be switched by pressing the UP or DOWN keys. The display is divided into three areas.
| Item | 1 Area data | 3 Area data | For Example |
|---|---|---|---|
| 1 | Input voltage | Output voltage | Input Voltage=220V, Output Voltage=220V (Default Display Screen) |
| 2 | Input frequency | Output frequency | Input Frequency=50Hz, Output Frequency=50Hz |
| 3 | Output active power | Output apparent power | Active power=3.02KW, Apparent power=4.0KVA |
| 4 | Input active power | PV feedback power | Active power=800W, Feedback power=0W |
| 5 | Battery voltage | Load percentage | Battery voltage=50V, Load percentage=80% |
| 6 | Charging power | Charging current | Total charging power=1.8KW, Charging current=36A. AC and PV icons indicate simultaneous charging. |
| 7 | Total PV power | Discharge current | PV power=8.6KW, Battery discharge current=0A |
| 8 | PV1 power | PV2 power | PV1 power=4.5kw, PV2 power=4.3kw |
| 9 | PV1 voltage | PV1 current | PV voltage=360V, PV current=12A |
| 10 | PV2 voltage | PV2 current | PV voltage=320V, PV current=13A |
| 9 | DAY Generation power/day | Generation power/day=10KWh | |
| 10 | MON Generation power /month | Generation power /month=310KWh | |
| 11 | YEA Generation power /year | Generation power /year=3.6mWh | |
| 12 | TTL Total generation power | Total generation power=13.6mWh | |
| 13 | Year month day | 2024/03/25 | |
| 14 | Hour minute second | 16:25:03 | |
| 15 | Max lithium battery charging voltage | Max lithium battery charging current | Example: 56.0V, 040A |
Other LCD display information: Press and hold the DOWN button on the main menu page.
| Item | 1 Area data | 2 Area data | 2 Area data | For Example |
|---|---|---|---|---|
| 16 | xx1: Lithium battery charging prohibited; x1x: Lithium battery prohibited; 1xx: Lithium battery requires forced charging. | |||
| 17 | Lithium battery SOC(%) | Example: 099% | ||
| 18 | Software Version part1 | Software Version Part2 | Software Version Part3 | Example: 240 31 201 |
| 19 | Model code Version part1 | Model code Version Part2 | Model code Version Part3 | Example: 19 00 60 |
| 20 | CPU type | HD | Hardware Version | Example: 000 Hd 000 |
Fault Reference Code
Fault codes consist of a group code (A-G) and a number. A: Inverter, B: Battery, C: PV, D: Output, E: Parallel, F: Other, G: Grid.
| Fault Code | Fault Event | Icon on |
|---|---|---|
| A0 | Output short circuited. | [A0 Error Icon] |
| A1 | Output voltage is too high. | [A1 Error Icon] |
| A2 | Over current or surge | [A2 Error Icon] |
| A3 | Over DC voltage in AC output | [A3 Error Icon] |
| A4 | Inverter current offset is too high | [A4 Error Icon] |
| A5 | Output voltage is too low | [A5 Error Icon] |
| A6 | Inverter negative power | [A6 Error Icon] |
| B0 | Battery voltage is too high | [B0 Error Icon] |
| B1 | DCDC over current | [B1 Error Icon] |
| B2 | DC/DC current offset is too high | [B2 Error Icon] |
| C0 | PV over current | [C0 Error Icon] |
| C1 | PV over voltage | [C1 Error Icon] |
| C2 | PV1 current offset is too high | [C2 Error Icon] |
| C3 | PV2 current offset is too high | [C3 Error Icon] |
| D0 | Overload time out | [D0 Error Icon] |
| D1 | Op current offset is too high | [D1 Error Icon] |
| F0 | Over temperature of inverter module | [F0 Error Icon] |
| F1 | Over temperature of PV module | [F1 Error Icon] |
| F2 | Over temperature of DCDC module | [F2 Error Icon] |
| F3 | Bus voltage is too high | [F3 Error Icon] |
| F4 | Bus soft start failed | [F4 Error Icon] |
| F5 | Bus voltage is too low | [F5 Error Icon] |
Warning Indicator
Warning codes consist of a group code (0C-0F) and a number. A: Inverter, B: Battery, C: PV, D: Output, E: Parallel, F: Other, G: Grid.
| Warning Code | Warning Event | Audible Alarm | Icon flashing |
|---|---|---|---|
| 0B | Battery low | Beep once every second | [0B Warning Icon] |
| 1B | Battery is not connected | None | [1B Warning Icon] |
| 2B | Battery equalization | None | [2B Warning Icon] |
| 3B | Battery low and it isn't up to the setting value of program 06 of F2 group | Beep twice every 3 seconds | [3B Warning Icon] |
| 4B | Lithium battery communication is abnormal | Beep once every 0.5 second | [4B Warning Icon] |
| 5B | Battery discharge overcurrent | None | [5B Warning Icon] |
| 1C | PV energy is too weak | Beep twice every 3 seconds | [1C Warning Icon] |
| 0D | Overload | Beep once every 0.5 second | [0D Warning Icon] |
| 1D | Output power derating | Beep twice every 3 seconds | [1D Warning Icon] |
| 0F | Temperature is too High | Beep three times every second | [0F Warning Icon] |
Battery Equalization
Equalization function reverses negative chemical effects like stratification and removes sulfate crystals, improving battery capacity. It's recommended to equalize batteries periodically.
How to Apply Equalization Function
- Enable battery equalization in LCD setting program 33.
- Set equalization interval in program 37 or activate immediately in program 39.
When to Equalize
The controller enters the Equalize stage when the set equalization interval arrives or when equalization is activated immediately.
Diagram showing Equalize Voltage, Float Voltage, BULK, ABSORPTION, FLOAT, EQUALIZE stages.
Equalize charging time and timeout
In the Equalize stage, the controller charges until battery voltage reaches the equalization voltage, then maintains it. The stage continues until the set battery equalized time is reached.
Diagram showing Equalize Voltage, Absorption Voltage, Float Voltage, Equalize Charging Time stages.
If the battery voltage does not reach the equalization voltage by the expired time, the controller extends the time. If it still doesn't reach the voltage after the timeout, equalization stops, and the controller returns to float stage.
Setting for Lithium Battery
Lithium Battery Connection
Use only configured lithium batteries. Connect the RS485 port of the BMS and the power cable.
- Assemble battery terminals as per lead-acid connection guidelines.
- Connect the RS485 port of the battery to the inverter's BMS(RS485) communication port.
Lithium battery communication and setting: Connect the BMS communication cable between the battery and inverter for information and signal transfer. Re-configure charging voltage, current, and cut-off voltage according to lithium battery parameters. Control charging based on lithium battery status.
RS485 Port Pin Assignment:
| Pin number | RS485 Port |
|---|---|
| PIN1 | RS485-B |
| PIN2 | RS485-A |
| PIN7 | RS485-A |
| PIN8 | RS485-B |
Setting for PYLONTECH US2000 lithium battery
Dip Switch Settings: 4 Dip Switches set baud rate and battery group address. OFF=0, ON=1. Dip 1 is ON for 9600 baud rate. Dips 2, 3, 4 are for battery group address.
Process of install:
- Connect inverter and Lithium battery using RS485 cable.
- Switch on Lithium battery.
- Press and hold for over three seconds to start Lithium battery; power output is ready.
- Turn on the inverter.
- Select battery type as “Li2” in LCD program 5. A successful communication is indicated by the “Li” icon on the LCD.
Setting for lithium battery without communication
This is suggested for lithium battery applications to avoid BMS protection issues without communication.
Recommended Method 1: Set battery type as “LIB” in program 01 of F2.
Recommended Method 2:
- Obtain battery BMS specifications (Max charging voltage, Max charging current, Discharging protection voltage).
- Set battery type as “LIB” in program 01 of F2.
- Set C.V voltage to Max charging voltage of BMS - 0.5V in program 03 of F2.
- Set floating charging voltage to C.V voltage in program 03 of F2.
- Set Low DC cut-off voltage to Discharging protection voltage of BMS + 3V.
- Set Max charging current in program 09 of F2 to be less than the BMS Max charging current.
- Set voltage point back to utility source when selecting “SBU priority” in program 05 of F2. The value must be ≥ Low DC cut-off voltage + 2V, or the inverter will show a low battery voltage warning.
Remark:
- It is recommended to complete settings without turning on the inverter (LCD on, no output).
- Restart the inverter after finishing settings.
Specifications
Table 1 Line Mode Specifications
| INVERTER MODEL | 8.5KW | 11.0KW |
|---|---|---|
| Input Voltage Waveform | Sinusoidal (utility or generator) | |
| Nominal Input Voltage | 230Vac | |
| Low Loss Voltage | 170Vac±7V (UPS) 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 | 50Hz / 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 | 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, output power is derated.
Diagram showing AC input voltage vs. output power derating.
Output power derating: When battery voltage drops to 50.5V (8.5K) / 55.0V (11K), output power is derated.
Diagram showing battery voltage vs. output power derating for 8.5KW and 11.0 KW models.
Table 2 Inverter Mode Specifications
| INVERTER MODEL | 8.5KW | 11.0KW |
|---|---|---|
| Rated Output Power | 8.5KVA/8.5KW | 11.0KVA/11.0KW |
| Output Voltage Waveform | Pure Sine Wave | |
| Output Voltage Regulation | 230Vac±5% | |
| Output Frequency | 60Hz or 50Hz | |
| Peak Efficiency | 94% | |
| Overload Protection | 5.5s@≥140% load; 10.5s@100%~140% load | |
| Surge Capacity | 2* rated power for 5 seconds | |
| Nominal DC Input Voltage | 48Vdc | |
| Cold Start Voltage | 46.0Vdc | |
| Low DC Warning Voltage | Just for AGM and Flooded @load < 20%: 44.0Vdc @20% ≤ load < 50%: 42.8Vdc @load ≥ 50%: 40.4Vdc |
|
| Low DC Warning Return Voltage | Just for AGM and Flooded @load < 20%: 46.0Vdc @ 20% ≤ load < 50%: 44.8Vdc @load ≥ 50%: 42.4Vdc |
|
| Low DC Cut-off Voltage | Just for AGM and Flooded @load < 20%: 42.0Vdc @20% ≤ load < 50%: 40.8Vdc @load ≥ 50%: 38.4Vdc |
|
Table 3 Charge Mode Specifications
| Utility Charging Mode | 8.5KW | 11.0KW |
|---|---|---|
| Charging Current (Max) (AC+PV) | 140Amp | 160Amp |
| AC Charging Current (Max) | 120Amp (@ VI/P=230Vac) | |
| Bulk Charging Voltage | Flooded Battery: 58.4Vdc AGM / Gel Battery: 56.4Vdc |
|
| Floating Charging Voltage | 54Vdc | |
| Overcharge Protection | 63Vdc | |
| Charging Algorithm | 3-Step | |
Diagram showing Charging Curve.
| Solar Input | 8.5KW | 11.0KW |
|---|---|---|
| Rated Power | 5000W*2 | 5500W*2 |
| Max. PV Array Open Circuit Voltage | 500Vdc | |
| PV Array MPPT Voltage Range | 60Vdc~500Vdc | |
| Max. MPPT Charge Current | 140A | 160A |
| Max. Input Current | 18A*2 | 18A*2 |
Table 4 General Specifications
| INVERTER MODEL | 8.5KW | 11.0KW |
|---|---|---|
| Safety Certification | CE | |
| Operating Temperature Range | -10°C to 55°C | |
| Storage temperature | -15°C~60°C | |
| Humidity | 5% to 95% Relative Humidity (Non-condensing) | |
| Dimension(D*W*H), mm | 540x403x122 | |
| Net Weight, kg | 14.4 | 14.8 |
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. Re-charge battery. 2. Replace battery. |
| No response after power on. | No indication. | 1. The battery voltage is far too low. 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 battery 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) |
|
| When the unit is turned on, internal relay is switched on and off repeatedly. | Green LED is flashing. | Set "SBU" or "SUB" as the priority of output source. | Change output source priority to Utility first. |
| 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 D0 | Overload error. The inverter is overload 100% and time is up. | Reduce the connected load by switching off some equipment. |
| Fault code A2 | Output short circuited. | Check if wiring is connected well and remove abnormal load. | |
| Fault code F2 | Internal temperature of inverter component is over 100°C. | Check whether the air flow of the unit is blocked or whether the ambient temperature is too high. | |
| Fault code B0 | Battery is over-charged. | Return to repair center. | |
| Fault code A1/A5 | The battery voltage is too high. | Check if spec and quantity of batteries are meet requirements. | |
| Fault code F3/F4 | Output abnormal (Inverter voltage below than 190Vac or is higher than 260Vac) | 1. Reduce the connected load. 2. Return to repair center. |
|
| Fault code A2 | Internal components failed. | Return to repair center. | |
| Fault code F5 | Over current or surge. | Restart the unit, if the error happens again, please return to repair center. | |
| Fault code A3 | Bus voltage is too low. | If the wires is connected well, please return to repair center. | |
| Another fault code | Output voltage is unbalanced. |
SHENZHEN HEHEJIN INDUSTRIAL CO.,LTD
Tel/Fax: +86 755-28219903
Email: support@powmr.com
Web: www.powmr.com
Add: Henggang Street, Longgang District, Shenzhen, Guangdong, China
