RenTECH 1.2K Simulated Sinewave Inverter or Charger User Manual

**RenTECH 1.2K Simulated Sinewave Inverter or Charger User Manual

**

Introduction

Thank you for purchasing this power inverter. This simple power inverter is designed to power your home appliances or precious 3C electronics. It also can handle motor-type loads with high surge power such as vacuums, small freezers, or drills. With built-in AC charger, it can convert utility power to battery power and provide continuous power to connected equipment during power failure.

Important Safety Warning (SAVE THESE INSTRUCTIONS)

Important Safety Warning (SAVE THESE INSTRUCTIONS) Before using the inverter, please read all instructions and cautionary markings on the unit, this manual and the batteries.

Conventions used
WARNING! Warnings identify conditions or practices that could result in personal injury;
CAUTION! Caution identify conditions or practices that could result in damaged to the unit or other equipment connected.

General PrecautionCAUTION!
The unit is designed for indoor use. Do not expose this unit to rain, snow or liquids of any type.

CAUTION! To reduce risk of injury, only use qualified batteries from qualified distributors or manufacturers. Any unqualified batteries may cause damage and injury. Do NOT use old or overdue batteries. Please check the battery type and date code before installation to avoid damage and injury.

WARNING! It’s very important for system safety and efficient operation to use appropriate external battery cable. To reduce risk of injury, external battery cables should be UL certified and rated for 105°C or higher. And do not use copper cables less than 6AWG or 10AWG*2.

CAUTION! Do not disassemble the inverter. Contact with the qualified service center when service or repair is required.

WARNING! Provide ventilation to outdoors from the battery compartment. The battery enclosure should be designed to prevent accumulation and concentration of hydrogen gas at the top of the compartment.

CAUTION! Use insulated tools to reduce the chance of short-circuit when installing or working with the inverter, the batteries, or other equipments attached to this unit.

CAUTION! For battery installation and maintenance, read the battery manufacturer’s installation and maintenance instructions prior to operating.

Personnel Precaution
CAUTION! Careful to reduce the risk or dropping a metal tool on the batteries. It could spark or short circuit the batteries and could cause an explosion.

CAUTION! Remove personal metal items such as rings, bracelets, necklaces, and watches when working with batteries. Batteries can produce a short circuit current high enough to make metal melt, and could cause severe burns.
CAUTION! Avoid touching eyes while working near batteries.
CAUTION! Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.
CAUTION! NEVER smoke or allow a spark or flame in vicinity of a battery.
CAUTION! If a remote or automatic generator start system is used, disable the automatic starting circuit or disconnect the generator to prevent accident during servicing.

Product Overview

1. Power switch
2. Status indicator
3. Charging indicator
4. Fault indicator
5. Function buttons (Please see the Operation section for the details)
6. LCD display
7. AC input
8. AC output socket
9. Input circuit breaker
10. External battery connectors
11. DC fuse

Installation

NOTE : Before installation, please inspect the unit. Be sure that nothing inside the package is damaged.

Mounting the unit
The unit ONLY can be mounted vertically to a wall surface. Please follow below steps:

1. Turn off the unit before mounting.
2. Select an appropriate mounting location. Mark four mounted ends as shown in chart.
3. Drill four marks by screws.
4. Mount the unit by positioning the key-hole slots over the mounting screws.

Connect External Battery

Step 1 – Install a DC Breaker in a positive battery line. The rating of the DC Breaker must be according to the inverter’s battery current (100 Amp). Keep the DC breaker off.
Step 2 – Remove insulation sleeve 18 mm for positive and negative conductors.
Step 3- Connect battery cables to the external batteries.
Note: For the user operation safety, we strongly recommend that you should use tapes to isolate the battery terminals before you start to operate the unit.

1. Single battery connection: When using a single battery, its voltage must be equal to the Nominal DC Voltage of the unit

2. Multiple batteries in series connection(Refer to Fig. 3) : All batteries must be equal in voltage and amp hour capacity. The sum of their voltages must be equal to the nominal DC Voltage of the unit

3. Multiple batteries in parallel connection(Refer to Fig. 4): Each battery’s voltage must be equal to the Nominal DC Voltage of the unit.

Step 4 – Make sure to connect the polarity of battery side and the unit correctly. Positive pole (Red) of battery to the positive terminal (+) of the unit. Negative pole (Black) of battery to the negative terminal (-) of the unit.
Step 5 -Take the DC breaker on.

Operation

Power On/Off
Once the inverter has been properly installed, press the power switch to turn on the unit. The unit will work automatically in line mode or inverter mode according to input utility power’s status. When press the power switch again, the unit will be turned off.

LED Indicators, Function Keys & Audible Alarms
There are three indicators in the front panel of the unit.

Function Keys

Audible Alarms

Input source information
**| Indicates the AC input
| Indicates input voltage, input frequency, PV voltage, charging current, battery voltage,
Configuration Program and Fault Information
| Indicates the setting programs.
**| Indicates the warning and fault codes.
Warning:   Flashing with warning code
Fault:    Lighting with fault code
Output Information

| Indicates the output voltage, load percentage, load in Watt and main board firmware version.
Battery Information
| Indicates the battery level by 0-24%, 25-49%, 50-74% and 75-100% in battery mode, charging status in line mode. ****
In AC mode, it will present battery charging status.

Status| Battery voltage| LCD Display**
---|---|---
| < 11Vdc/pcs| 4 bars will flash in turns.
Constant Current mode / Constant Voltage mode| 11Vdc ~ 11.5Vdc/pcs| Bottom bar will be on and the other three bars will flash in turns.
11.5Vdc ~ 12.5Vdc/pcs| Bottom two bars will be on and the other two bars will flash in turns.

12.5Vdc/pcs| Bottom three bars will be on and the top
| bar will flash.
Floating mode. Batteries are fully charged.| 4 bars will be on.

In battery mode, it will present battery capacity.

Load Information

| Indicates overload.
****| Indicates the load level by 0-24%, 25-49%, 50-74%, and 75-100%.
0%~24%| 25%~49%| 50%~74%| 75%~100%
| | |
Mode operation information

| Indicates unit connects to the mains.
| Indicates load is supplied by utility power.
| Indicates the utility charger circuit is working.
| Indicates the DC/AC inverter circuit is working.

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

Setting Programs

** 01| **** AC input voltage range| Wide (default)
| If selected, acceptable AC input voltage range will be within 90-280VAC.
Narrow
| If selected, acceptable AC input voltage range will be within 170-280VAC.
02| Battery type| AGM(Default)
| Flooded
| User-defined

**** 03| **** Max AC charging current| 20A(default)

10A

**** 04| **** Bulk charging (C.V voltage)voltage| 12V model default setting: 14.1V **

**
24V model default setting: 28.2V

If self-defined is selected in program 02, this program can be set up. Setting range is from 13.0V to 14.6V for 12Vdc model and increment of each click is 0.1V. Setting range is from 26.0V to 29.2V for 24Vdc modeland increment of each click is 0.2V.
**** 05| **** Floating charging voltage| 12V model default setting: 13.5V

24V model default setting: 27.0V

| | If self-defined is selected in program 02, this program can be set up. Setting range is from 13.0V to 14.6V for 12Vdc model and increment of each click is 0.1V. Setting range is from 26.0V to 29.2V for 24Vdc modeland increment of each click is 0.2V.
---|---|---
**** 06| **** Low DC cut-off voltage| 1.2K default setting: 9.9V **

2.4K default setting: 19.8V

**
Setting range is from 9.9V to 12.0V for 1.2K model and increment of each click is 0.1V Setting range is from 19.8V to 24.0V for 2.4K model andincrement of each click is 0.2V. Low DC cut-off voltage will be fixed to setting value no matter what percentage of load is connected.

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

Input voltage/Output voltage (Default Display Screen)

| Input Voltage=230V, output voltage=230V

Battery voltage / Load percentage

| Battery voltage=25.5V Load percent=70%

Battery voltage/ Load in watt

| When load is lower than 1kW, load in W will present xxxW like below chart.
| When load is larger than 1kW (≧1KW), load in W will present x.xkW like below chart.

Main CPU version checking

| Main CPU version 00001.01

Operating Mode Description

Standby mode Note: *Standby mode: The inverter is not turned on yet but at this time, the inverter can charge battery with AC bypass output.| **** Utility input bypass to output, charger is available and LCD backlight is off| Charging by utility.

**** Line Mode| The unit will provide output power from the mains. It will also charge the battery at line mode.| Charging by utility. **

** Battery Mode| The unit will provide output power from battery.| Power from battery only. **

**

Fault Reference Code

Fault Code| Fault Event| Icon on| Fault Code| Fault Event| Icon on
---|---|---|---|---|---
00| Output short circuit| | 05| Fan locked|
01| Over load time out| | 06| Over temperature|
03| Output voltage too high| | 08| Over charge|

Warning Indicator

Trouble Shooting

Use the table below to solve minor problems.

Problem| LCD/LED/Buzzer| Explanation / Possible cause| What to do
---|---|---|---
When power fails, the backup time is shorten.| Battery low alarm issue quickly.| Battery voltage is too low.| Charge the unit at least 8 hours.
Battery capacity is not full evenafter charge the unit for at least 8 hours.| Check the date code of thebattery. If the batteries are too old, replace the batteries.

Mains exist but the unit works in battery mode.

| Input voltage is displayed as 0 on theLCD 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 ifinput voltage range setting is correct. (NarrowàWide)
No LED display on the front panel when the utility power is normal.|

No LED display.

| Battery is not connected well.| Check the external battery cable and terminal. Make sure all the battery connections to the unit are all correct.
Battery defect.| Replace the batteries.

Buzzer beeps continuously and red LED is on.

| Fault code 00| Output short circuited.| Check if wiring is connected well and remove abnormalload.
Fault code 01| Overload error. The inverter is overload 110% and time is up.| Reduce the connected load by switching off someequipment.
Fault code 03| Output voltage too high| Return to repair center.
Fault code 05| Fan fault| Replace the fan.

If there is any abnormal situations occur, which doesn’t list above, please call the service people immediately for professional examine.

Specifications

INPUT
Voltage| 230 VAC
Voltage Range| 90-280 VAC
OUTPUT
Voltage Regulation (Batt. Mode)| +/-10%
Transfer Time| 20 ms typical
Waveform| Simulated Sine Wave
BATTERY
Battery Voltage| 12 VDC| 24 VDC
Floating Charge Voltage| 13.7 VDC ±0.5 VDC| 27.4 VDC ±1 VDC
PHYSICAL
Dimension (DxWxH) mm| 272 x 212 x 127
Net Weight (kgs)| 4.5| 4.8

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