Voltronic Power EPS 5KW User Manual
EPS 5KW
INVERTER / CHARGER
Version: 1.0
User Manual
Table of Contents
ABOUT THIS MANUAL ..................................................................................................................................... 1
Purpose ............................................................................................................................................................ 1
Scope ............................................................................................................................................................... 1
SAFETY INSTRUCTIONS .................................................................................................................................. 1
INTRODUCTION ............................................................................................................................................... 2
Features ........................................................................................................................................................... 2
Basic System Architecture ............................................................................................................................... 2
Product Overview ............................................................................................................................................. 3
INSTALLATION ................................................................................................................................................. 4
Unpacking and Inspection................................................................................................................................ 4
Installation ........................................................................................................................................................ 4
Rack Mounting ................................................................................................................................................. 4
Battery Connection .......................................................................................................................................... 5
AC Input/Output Connection ............................................................................................................................ 6
Communication Connection ............................................................................................................................. 7
OPERATION ....................................................................................................................................................... 8
Power ON/OFF ................................................................................................................................................ 8
Operation and Display Panel ........................................................................................................................... 8
LCD Display Icons ........................................................................................................................................... 9
LCD Setting .................................................................................................................................................... 11
Display Setting ............................................................................................................................................... 13
Operating Mode Description .......................................................................................................................... 14
Fault Reference Code .................................................................................................................................... 15
Warning Indicator ........................................................................................................................................... 15
SPECIFICATIONS ........................................................................................................................................... 16
TROUBLE SHOOTING ..................................................................................................................................... 18
Appendix I: Parallel function ....................................................................................................................... 19
Appendix II: Approximate Back-up Time Table ....................................................................................... 30
1
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. Be very 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. Fuses are provided as over-current and reversed connection protection for the battery supply.
11. GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a permanent grounded
wiring system. Be sure to comply with local requirements and regulation to install this inverter.
12. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input
short circuits.
13. 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.
2
INTRODUCTION
This is a multi-functional inverter/charger, combining functions of inverter and battery charger to offer
uninterruptible power for office and home appliances. Its comprehensive LCD display offers user-configurable
parameters, such as battery charging current, and acceptable inputs voltage by setting easy-accessible buttons
to fit different application.
Features
Pure sine wave inverter
Configurable battery charging current based on applications via LCD setting
Compatible with mains voltage or generator power
Auto restart while AC is recovering
Overload/ Over temperature/ short circuit protection
Smart battery charger designed for optimized battery performance
Cold start function
Basic System Architecture
The following illustration shows basic application for this inverter/charger and this system should include
generator or utility to form a complete running system. Consult with your system integrator for other possible
system architectures depending on your requirements.
This inverter can power all kinds of appliances at home or in office, including motor-type appliances such as
tube light, fan, refrigerator and air conditioner.
System Diagram
3
Product Overview
1. Operation panel
2. RS-232 communication port
3. AC input terminal
4. AC output terminal
5. Battery input
6. Circuit breaker
7. Parallel communication ports
8. Share current ports
9. Dry contact
10. Communication ports
4
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 the package:
The unit x 1
User manual x 1
Parallel cable x 2
Software CD x 1
Installation
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 40°C to ensure optimal operation.
Rack Mounting
Please follow the diagram below to install the Inverter module in a 19-inch bay (with a depth of 600mm) at the
desired height in the upright cabinet. Secure the device adequately and fix it to the cabinet with six screws.
5
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’s still requested to have over-current protection installed. Please refer
to the table below to select proper amperage, 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 cable and terminal size as recommended 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)
5KW
125A
200AH
1*4AWG
22
6.4
33.2
2.5~3 Nm
2*8AWG
14
6.4
29.2
Please follow the steps below to implement battery connection:
1. Assemble battery ring terminal based on recommended battery cable and terminal size.
2. Connect all battery packs as the diagram below. It’s suggested to connect battery with at least 200Ah
capacity.
3. Insert the ring terminal of battery cable flatly into battery connector of inverter and make sure the bolts are
tightened with torque of 2.5-3 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.
Ring terminal:
6
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 50A.
CAUTION!! There are two terminal blocks with “IN” and “OUT” markings. Please do NOT mis-connect input
and output connectors.
WARNING! All wiring must be performed by qualified person.
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 cable size as recommended below.
Suggested cable requirement for AC wires
Model
Gauge
Torque Value
5KW
8~10 AWG
1.4~ 1.6Nm
Please follow the steps below to implement AC input/output connection:
1. Before making AC input/output connection, be sure to disconnect DC protector or breaker on battery
terminal first.
2. Remove insulation sleeve 10mm for six conductors.
3. Insert AC input wires according to polarities indicated on terminal block and tighten the terminal screws. Be
sure to connect PE protective conductor ( ) first.
→Ground (yellow-green)
L→LINE (brown or black)
N→Neutral (blue)
WARNING:
Be sure that AC power source is disconnected before attempting to fix the wire of the unit.
7
4. Then, insert AC output wires according to polarities indicated on terminal block and tighten terminal screws.
Be sure to connect PE protective conductor ( ) first.
→Ground (yellow-green)
L→LINE (brown or black)
N→Neutral (blue)
5. Make sure the wires are securely connected.
Communication Connection
The inverter is equipped with two sets of RS-485 Modbus communication ports. RS-485-1 is for general
communication with personal computer. It will provide advanced communication and monitoring options.
RS-485-2 is for use with Li-battery. For detailed operation, please check your local dealer or installer.
After communication cable is connected well, insert bundled CD into a computer and follow on-screen
instruction to install the monitoring software. For the detailed software operation, please check user manual of
software in the CD.
Dry Contact Signal
There is one dry contact (3A/250VAC) available on the rear panel. It could be used to deliver signal to connect
external device based on different working mode.
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.
Close
Open
Output is powered from Battery.
Open
Close
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 with
manufacturer of air conditioner to see if it’s equipped with time-delay function before installation. Otherwise, this
inverter/charger will detect overload fault and cut off output to protect your appliance but sometimes it still
causes internal damage to the air conditioner.
8
OPERATION
Power ON/OFF
Once the unit has been properly installed and the batteries are connected well, simply press On/Off switch
to turn on the unit.
Operation and Display Panel
The operation and display panel, shown in below chart, is on the front panel of the inverter. It includes
three indicators, three function keys and a LCD display, indicating the operating status and input/output
power information.
LED Indicators
LED Indicator
Messages
Green
Solid On
Output is powered by utility in Line mode.
Flashing
Output is powered by battery in battery mode.
Green
Solid On
Battery is fully charged.
Flashing
Battery is charging.
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
SELECT
To go to next page or next selection
ENTER
To confirm the selection in setting mode or enter setting mode
LED indicators
Function keys
LCD display
Loading...