FSP HySpirit series User Manual
www.fsp-group.com.tw
FSP HySpirit 5.5k
FSP552PV-230H-48
PVInverter User Manual
Version: 1.0
FSP HySpirit series User Manual
www.fsp-group.com.tw
Table of Contents
1. Introduction ....................................................................................... 1
2. Important Safety Warning .................................................................. 2
3. Unpacking & Overview ....................................................................... 4
4. Installation .......................................................................................... 5
5. Surge Protection Device Installation .................................................. 6
6. Grid (Utility) Connection .................................................................... 8
7. PV Module (DC) Connection .............................................................. 8
8. Battery Connection .......................................................................... 11
9. Load (AC Output) Connection .......................................................... 12
10. Communication ................................................................................ 14
11. Application with Energy Meter ........................................................ 15
12. Commissioning ................................................................................. 16
13. Initial Setup ...................................................................................... 17
14. Operation ......................................................................................... 27
15. Charging Management ..................................................................... 38
16. Maintenance & Cleaning .................................................................. 40
17. Trouble Shooting .............................................................................. 41
18. Specifications..................................................................................... 44
FSP HySpirit series User Manual 1
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1. Introduction
This hybrid PV inverter can provide power to connected loads by utilizing PV power, utility power
and battery power.
Figure 1 Basic hybrid PV System Overview
Depending on different power situations, this hybrid inverter is designed to generate continuous
power from PV solar modules (solar panels), battery, and the utility. When MPP input voltage of PV
modules is within acceptable range (see specification for the details), this inverter is able to generate
power to feed the grid (utility) and charge battery. This inverter is only compatible with PV module
types of single crystalline and poly crystalline. Do not connect any PV array types other than these
two types of PV modules to the inverter. Do not connect the positive or negative terminal of the
solar panel to the ground. See Figure 1 for a simple diagram of a typical solar system with this hybrid
inverter.
Note: To conform to the EEG standard, every inverter sold to German area is not allowed to charge
battery from Utility. The relevant function is automatically disabled via the software.
Hybrid inverter
PV module
Battery
Load
Distribution
Electric grids
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2. Important Safety Warning
Before using the inverter, please read all instructions and cautionary markings on the unit and this
manual. Store the manual where it can be accessed easily.
This manual is for qualified personnel. The tasks described in this manual may be performed by
qualified personnel only.
General Precaution-
WARNING! Before installing and using this inverter, read all instructions and cautionary markings on
the inverter and all appropriate sections of this guide.
WARNING! Normally grounded conductors may be ungrounded and energized when a ground fault
is indicated.
WARNING! This inverter is so heavy that it should be lifted by at least two persons.
CAUTION! Before attempting any maintenance or cleaning or working on any circuits connected to
the inverter, disconnecting AC, DC and battery power from the inverter can reduce the risk of electric
shock. Merely turning off controls will not reduce this risk because internal capacitors can remain
charged for 5 minutes after disconnecting all sources of power.
CAUTION! Do not disassemble this inverter by yourself. It contains no user-serviceable parts.
Attempt to service this inverter by yourself may cause electric shock or fire and will void the warranty
from the manufacturer.
CAUTION! To avoid fire and electric shock, make sure that existing wiring is in good condition and
that the wire is not undersized. Do not operate the damaged Inverter or substandard wiring.
Conventions used:
WARNING! Warnings identify conditions or practices that could result in personal injury;
CAUTION! Caution identify conditions or practices that could result in damage to the unit
or other equipment connected.
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CAUTION! In high temperature environment, the surface of this inverter could be hot enough to
cause skin burns if accidentally touched. Ensure that this inverter is away from normal traffic areas.
CAUTION! Use only recommended accessories from installer. Otherwise, disqualified tools may
cause fire, electric shock, or injury to persons.
CAUTION! To reduce risk of fire hazard, do not cover or obstruct the cooling fan.
CAUTION! Do not operate the Inverter if it has undergone a sharp blow, been dropped, or damaged
in any way. If the Inverter is damaged, please call for an RMA (Return Material Authorization) request.
CAUTION! AC breaker, DC switch and Battery circuit breaker are used as disconnect devices and
these disconnect devices shall be easily accessible.
Symbols used in Equipment Markings
Refer to the operating instructions
Caution! Risk of danger
Caution! Risk of electric shock
Caution! Risk of electric shock. Energy storage timed discharge for
5 minutes.
Caution! Hot surface
Before working on this circuit
- Isolate inverter/Uninterruptible Power System (UPS)
- Then check for Hazardous Voltage between all terminals including the
protective earth.
Risk of Voltage Backfeed
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3. Unpacking & Overview
3-1. Packing List
Before installation, please inspect the unit. Be sure that nothing inside the package is damaged.
You should receive the following items inside of package:
Inverter unit PV connectors Software CD Manual USB cable RS-232 cable
Mounting
Surge protection device L-type plate Screws Magnets Cables screws
3-2. Product Overview
1) PV connectors
2) AC output connectors (Load connection)
3) Battery connectors
4) AC Grid connectors (Connect to SPD)
5) RS-232 communication port
6) USB communication port
7) Intelligent slot
8) DC Switch (option)
9) LCD display panel
10) LED indicators
11) Operation buttons
(Please check section 14 for details about LCD
display, LED indicators and button operation)
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4. Installation
4-1. Selecting Mounting Location
Consider the following points to install the inverter:
Do not mount the inverter on flammable construction materials.
Mount on a solid surface
This inverter might make noises during operation which may be perceived as a nuisance in
a living area.
Install this inverter at eye level in order to allow the readability of LCD display at all times.
For proper air circulation to dissipate heat, allow a clearance of approx. 20 cm to the side
and approx. 50 cm above and below the unit.
Dusty conditions on the unit may impair the performance of this inverter.
The ambient temperature should be between 0°C and 40°C and relative humidity should
be between 5% and 85% to ensure optimal operation.
The recommended installation is vertical adherence.
For proper operation of this inverter, please use appropriate cables for grid connection.
The pollution degree of the inverter is PD2. Select an appropriate mounting location.
Install the solar inverter in a protected area that is dry, free of excessive dust and with
adequate air flow. Do NOT operate it in the place where the temperature and humidity is
beyond the specific limits. (Please check the specs for the limitations.)
The inverter should be installed in the position where the disconnection means is easily
accessible.
This inverter is designed with IP20 protection for indoor applications only.
Regularly clean the fan filter.
4-2. Mounting Unit
Installation to the wall should be fixed with proper screws. After that, the device should be
bolted on securely.
The inverter can only operate in a CLOSED ELECTRICAL OPERATING AREA. Only service personnel
can enter this area.
Fix the unit with four screws.
WARNING!! Remember that this inverter is heavy so please be careful when removing
it from the package.
WARNING!! FIRE HAZARD.
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE
ONLY.
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5. Surge Protection Device Installation
CAUTION: Be sure to disconnect from AC power before installing surge protection device.
Step 1: Install the SPD on the left hand side of the inverter with six magnets.
Step 2: To prevent surge protection device falling apart, use supplied L-type plate and fix it to
attach surge protection device tightly to the inverter.
Magnet x 6 pieces
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Step 3: Connect the OUTPUT of SPD to AC grid connectors of Hybrid Inverter. The INPUT of SPD is
connected to AC utility.
Hybrid Inverter
Output of
SPD
AC Grid Input
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6. Grid (Utility) Connection
6-1. Preparation
Before connecting to AC utility, please install a separate AC circuit breaker between surge
protection device (SPD) and AC utility. This will ensure the inverter can be securely disconnected
during maintenance and fully protected from over current of AC input.
NOTE1: Although this inverter is equipped with 250Vac/40A fuse, it’s still necessary to install a
separate circuit breaker for safety consideration. Please use 250Vac/40A circuit breaker between
surge protection device (SPD) and AC utility.
NOTE2: The overvoltage category of the AC input is III. It should be connected to the power
distribution.
WARNING! For safety and efficiency, it's very important to use appropriate cables for grid (utility)
connection. To reduce risk of injury, please use the proper cable size recommended below.
Suggested cable requirement for AC wire
Model
5.5KW
Nominal Grid Voltage
230Vac
Conductor cross-section (mm2)
6
AWG no.
10
6-2. Connecting to the AC Utility
Step 1: Check the grid voltage and frequency with an AC voltmeter to see if it’s same as the
“Vac” value on the product label.
Step 2: Turn off the circuit breaker.
Step 3: Remove insulation sleeve 10 mm from three
conductors and shorten phase L and neutral
conductor N for 3 mm. Refer to chart 1.
Step 4: Connect wires according to the polarities indicating on terminal block. Be sure to connect
PE protective conductor (G) first.
L→LINE (brown or black)
N→Neutral (blue or white)
G→Ground (yellow-green)
Step 5: Make sure the wires are securely connected.
The reference tightening torque is 1.4~1.6N.m.
7. PV Module (DC) Connection
CAUTION: Before connecting to PV modules, please install separately DC circuit breakers
L
N
Chart 1
Chart 2
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between inverter and PV modules.
NOTE1: Please use 600Vdc/30A circuit breaker.
NOTE2: The overvoltage category of the PV input is II.
Please follow the steps below to implement PV module connection:
Step 1: Check the input voltage of PV array modules. The acceptable input voltage of the inverter
is 250Vdc-450Vdc (with rated load). This system is applied with two strings of PV array. Please
make sure that the maximum current load of each PV input connector is 13A.
Step 2: Disconnect the circuit breaker and switch off the DC switch.
Step 3: Assemble provided PV connectors with PV modules by the following steps.
Components for PV connectors and Tools:
Female connector housing
Female terminal
Male connector housing
Male terminal
Crimping tool and spanner
Prepare the cable and follow the connector assembly process:
Strip one cable 8 mm on both end sides and be careful NOT to nick
conductors.
Insert striped cable into female terminal and crimp female terminal as
shown below.
Insert assembled cable into female connector housing as shown below.
CAUTION: Exceeding the maximum input voltage can destroy the unit!! Check the
system before wire connection.
WARNING: Because this inverter is non-isolated, only three types of PV modules are
acceptable: single crystalline and poly crystalline with class A-rated and CIGS
modules.
To avoid any malfunction, do not connect any PV modules with possible current
leakage to the inverter. For example, grounded PV modules will cause current leakage
to the inverter. When using CIGS modules, please be sure NO grounding.
CAUTION: It’s requested to use PV junction box with surge protection. Otherwise, it
will cause damage on inverter when lightning occurs on PV modules.
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Insert striped cable into male terminal and crimp male terminal as shown below.
Insert assembled cable into male connector housing as shown below.
Then, use spanner to screw pressure dome tightly to female connector and male connector as
shown below.
Step 4: Check the correctness of the polarity of connection cable on PV modules and PV input
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.
WARNING! For safety and efficiency, it's very important to use appropriate cables for PV module
connection. To reduce risk of injury, please use the proper cable size as recommended below.
Conductor cross-section (mm2)
AWG no.
4~6
10~12
CAUTION: Never directly touch the terminals of inverter. It might cause lethal electric
shock.
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Recommended Panel Configuration
Solar Panel Spec.
(reference)
- 260Wp
- Vmp: 30.7Vdc
- Imp: 9.18A
- Voc: 38.9Vdc
- Isc: 8.56A
- Cells: 60
SOLAR INPUT 1
SOLAR INPUT 2
Q'ty of
panels
Total Input
Power
(Min in serial: 6pcs;
Max. in serial: 12pcs)
6pcs in serial
x
6pcs
1,560W
x
6pcs in serial
6pcs
1,560W
8pcs in serial
x
8pcs
2,080W
x
8pcs in serial
8pcs
2,080W
6pcs in serial
6pcs in serial
12pcs
3,120W
7pcs in serial
7pcs in serial
14pcs
3,640W
8pcs in serial
8pcs in serial
16pcs
4,160W
10pcs in serial
10pcs in serial
20pcs
5,200W
12pcs in serial
12pcs in serial
24pcs
6,240W
8. Battery Connection
CAUTION: Before connecting to batteries, please separately install a DC circuit breaker between
inverter and batteries.
NOTE1: Please only use sealed lead acid battery, vented and Gel battery. Please check its
maximum charging voltage and current when first using this inverter. If using Lithium iron or Nicd
battery, please consult with installer for the details.
NOTE2: Please use 80Vdc/200A circuit breaker.
NOTE3: The overvoltage category of the battery input is II.
Please follow the steps below to implement battery connection:
Step 1: Check the nominal voltage of batteries. The nominal input
voltage for inverter is 48Vdc.
Step 2: Use two battery cables. Remove insulation sleeve 12 mm and
insert conductor into cable ring terminal. Refer to the right diagram.
Step 3: Remove the cover of battery and follow the polarity of battery printed near the battery
terminal! Place the external battery cable ring terminal over the battery terminal.
RED cable to the positive terminal (+);
BLACK cable to the negative terminal (-).
CAUTION: Do NOT touch the inverter to avoid electric shock. When PV modules are
exposed to sunlight, it may generate DC voltage in the inverter.
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WARNING! Wrong connections may damage the unit permanently.
Step 4: Make sure the wires are securely connected. The reference tightening torque is 2.04 N.m.
WARNING! For safety and efficiency, it's very important to use appropriate cables for battery
connection. To reduce risk of injury, please use the proper cable size recommended as below.
Conductor cross-section (mm2)
38
AWG no.
2
9. Load (AC Output) Connection
CAUTION: To prevent extra supply to the load via the inverter during any mode of operation, an
additional disconnection device should be placed on in the building wiring installation.
WARNING! For safety and efficiency, it's very important to use appropriate cable for AC
connection. To reduce risk of injury, please use the proper cable size recommended as below.
Model
5.5KW
Nominal Grid Voltage
230Vac
Conductor cross-section (mm2)
6
AWG no.
10
Step 1: Remove insulation sleeve 8 mm for three conductors. And shorten phase L and neutral
conductor N 3 mm. Refer to Diagram 3.
Step 2: Connect wires according to the polarities indicated on
terminal block. Be sure to connect PE
protective conductor ( ) first. Refer to Diagram 4.
L
N
Diagram 3
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L→LINE (brown or black)
→Ground (yellow-green)
N→Neutral (blue or white)
Step 3: Make sure the wires are securely connected. The
reference tightening torque is 1.4~1.6N.m.
CAUTION: It’s only allowed to connect load to “AC Output Connector”. Do NOT connect
the utility to “AC Output Connector”.
CAUTION: Be sure to connect L terminal of load to L terminal of “AC Output Connector”
and N terminal of load to N terminal of “AC Output Connector”. The G terminal of “AC
Output Connector” is connected to grounding of the load. Do NOT mis-connect.
CAUTION: This inverter is not allowed to operate in parallel. Please do NOT connect
more than one unit in parallel in AC output connector. Otherwise, it will damage this
inverter.
Diagram 4
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10. Communication
The inverter is equipped with RS232 port, USB port and a slot for alternative communication
interfaces in order to communicate with a PC via corresponding software. This intelligent
slot is suitable to install with SNMP card and Modbus card. Follow the procedure below to
connect communication wiring and install the software.
For RS232 port, you should use a DB9 cable as below:
For USB port, you should use a USB cable as below:
For SNMP or MODBUS card, you should use RJ45 cables as below:
Please install monitoring software in your computer. Detailed information is listed in next
chapter. After software is installed, you may initialize the monitoring software and extract
data through communication port.
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11. Application with Energy Meter
With Modbus card II and energy meter, hybrid inverter can be easily integrated into the existing
household system. For details please refer to Modbus card II manual.
Note: This application is only valid for Grid-Tie with Backup II mode.
Equipped with Modbus card II, hybrid inverter is connected to energy meter with RS485
communication port. It’s used to set up self-consumption function via Modbus card to control
power generation and battery charging of the inverter.
Hybrid Inverter
Battery
To Main
Family Load
RS-485
Energy Meter
Grid
L1L2L3
N
L
Grid
Modbus card
AC Output
PV Arry
N
G
L
N
G
To Urgent
Load
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12. Commissioning
Step 1: Check the following requirements before commissioning:
Ensure the inverter is firmly secured
Check if the open circuit DC voltage of PV module meets the requirement (Refer to Section
6)
Check if the voltage of the open circuit utility is approximately as same as the expected
nominal value from local utility company.
Check if connection of AC cable to grid (utility) is correct if the utility is required.
Fully connect to PV modules.
Check if AC circuit breaker (only applied when the utility is required), batter circuit breaker,
and DC circuit breaker are installed correctly.
Step 2: Switch on the circuit breaker of battery and then switch on PV DC breaker. After that, if
there is any connection with utility, please switch on the AC circuit breaker. At this moment, the
inverter is already turned on. However, there is no output generation from loads. Then:
If LCD lights up to display the status of current inverter, commissioning has been completed
successfully. After pressing “ON” button for 1 second when the utility is detected, this
inverter will start to supply power to the loads. If no utility exists, simply press “ON” button
for 3 seconds. Then, this inverter will start to supply power to the loads.
If an error occurs to this inverter, a warning/fault indicator will appear on LCD display. Please
inform your installer.
Step 3: Please insert CD into your computer and install monitoring software on your PC. Follow
the steps below to install the software.
1. Follow the on-screen instructions to install the software.
2. When your computer restarts, the monitoring software will appear as shortcut icon located in
the system tray, near the clock.
NOTE: If using modbus card as communication interface, please install bundled software. Check
local dealer for the details.
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13. Initial Setup
Before inverter starts to operate, it’s required to set up “Operation Mode” via software. Please
strictly follow the steps below to set up. For more details, please refer to software manual.
Step 1: After turning on the inverter and installing the software, please click “Open Monitor” to
enter main screen of this software.
Step 2: Log in the software first by entering the default password “administrator.”
Step 3: Select Device Control>>MyPower Management to set up inverter operation mode and
personalized interface. Refer to diagram below.
Mode
There are three operation modes: Grid-tie with backup, Grid-Tie and Off-Grid.
Grid-tie with backup: PV power can feed back to grid, provide power to the load and charge
battery. There are four options available in this mode: Grid-tie with backup I, II, III and IV. In
this mode, users can configure PV power supply priority, charging source priority and load
supply source priority. However, when Grid-tie with backup IV option is selected in PV energy
supply priority, the inverter is only operating between two working logics based on defined
peak time and off-peak time of electricity. Only peak time and off-peak time of electricity are
able to set up to optimize electricity usage.
Grid-Tie: PV power can only feed back to grid.
Off-Grid: PV power can only provide power to the load and charge battery but can’t feed
back to grid.
SECTION A:
Standard: It will list local grid standard. To make any modification, you’re requested to have
factory password. Please check local dealer only when this standard change is requested.
CAUTION: Wrong setting could cause damage to the unit or not working.
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Nominal Output Voltage: 230V.
Nominal Output Frequency: 50HZ.
SECTION B:
This section contents may be different based on different selection of operations.
Allow AC charging duration: It’s a period of time to allow AC (grid) to charge battery. When the
duration is set as 0:00-00:00, it means no time limitation for AC to charge battery.
AC output ON/Off Timer: Set up on/off time for AC output of inverter. If setting it as 00:00/00:00,
this function is disabled.
Allow to charge battery: This option is automatically determined by setting in “Charging source”.
It’s not allowed to modify here. When “NONE” is selected in charging source section, this option
becomes unchecked in grey text.
Allow AC to charge battery: This option is automatically determined by setting in ”Charging source”.
It’s not allowed to modify here. When “Grid and PV” or “Grid or PV” is selected in charging source
section, this option is default selected. In Grid-tie mode, this option is invalid.
Allow to feed-in to the Grid: This option is only valid under Grid-tie and Grid-tie with backup modes.
Users can decide if this inverter can feed-in to the grid.
Allow battery to discharge when PV is available: This option is automatically determined by setting
in “Load supply source (PV is available)”. When “Battery” is higher in priority than “Grid” in Load
supply source (PV is available), this option is selected in default. Under Grid-tie, this option is
invalid.
Allow battery to discharge when PV is unavailable: This option is automatically determined by
setting in “Load supply source (PV is unavailable)”. When “Battery” is higher in priority than “Grid”
in Load supply source (PV is unavailable), this option is selected in default. In Grid-tie mode, this
option is invalid.
Allow battery to feed-in to the Grid when PV is available: This option is only valid in Grid-tie with
backup II or Grid-tie with backup III modes.
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Allow battery to feed-in to the Grid when PV is unavailable: This option is only valid in all options
of Grid-tie with backup mode.
Grid-tie with backup
Grid-tie with backup (I):
PV energy supply priority setting: 1st Battery, 2nd Load and 3rd Grid.
PV power will charge battery first, then provide power to the load. If there is any remaining
power left, it will feed-in to the grid.
Battery charging source:
1. PV and Grid (Default)
It’s allowed to charge battery from PV power first. If it’s not sufficient, grid will charge battery.
2. PV only
It is only allow PV power to charge battery.
3. None
It is not allowed to charge battery no matter it’s from PV power or grid.
Load supply source:
When PV power is available: 1st PV, 2nd Grid, 3rd Battery
If battery is not fully charged, PV power will charge battery first. And remaining PV power will
provide power to the load. If it’s not sufficient, grid will provide power to the load. If grid is not
available at the same time, battery power will back up.
When PV power is not available:
1. 1st Grid, 2nd Battery (Default)
Grid will provide power to the load first. If grid is not available, battery power will provide power
backup.
2. 1st Battery, 2nd Grid
Battery provide power to the load first. If battery power is running out, grid will support load.
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NOTE: This option will become ineffective during AC charging time and the priority will
automatically become 1st Grid and 2nd Battery order. Otherwise, it will cause battery damage.
Grid-tie with backup (II):
PV energy supply priority setting: 1st Load, 2nd Battery and 3rd Grid.
PV power will provide power to the load first. Then, it will charge battery. If there is any
remaining power left, it will feed-in to the grid.
Battery charging source:
1. PV and Grid
It’s allowed to charge battery from PV power first. If it’s not sufficient, grid will charge battery.
2. PV only
Only PV power is allowed to charge battery.
3. None
It is not allowed to charge battery no matter it’s PV power or grid.
Load supply source:
When PV power is available:
1. 1st PV, 2nd Battery, 3rd Grid
PV power will provide power to the load first. If it’s not sufficient, battery will provide power to
the load. When battery is running out power or not available, grid will back up the load.
2. 1st PV, 2nd Grid, 3rd Battery
PV power will provide power to the load first. If it’s not sufficient, grid will provide power to the
load. If grid is not available at the same time, battery power will back up the load.
When PV power is not available:
1. 1st Grid, 2nd Battery: Grid will provide power to the load first. If grid is not available, battery
will provide power backup.
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2. 1st Battery, 2nd Grid: Battery will provide power to the load first. If battery is running out power,
grid will back up the load.
NOTE: This option will become ineffective during AC charging time and the priority will
automatically become 1st Grid and 2nd Battery order. Same as Grid-tie with backup (I).
Grid-tie with backup (III):
PV energy supply priority setting: 1st Load, 2nd Grid and 3rd Battery
PV power will provide power to the load first. If there is more PV power available, it will feed-in
to the grid. If feed-in power reaches the max. feed-in power setting, the remaining power will
charge battery.
NOTE: The max. feed-in grid power setting is available in parameter setting. Please refer to
software manual.
Battery charging source:
1. PV and Grid: It’s allowed to charge battery from PV power first. If it’s not sufficient, grid will
charge battery.
2. PV only: PV power is only allowed to charge battery.
3. None: It is not allowed to charge battery no matter it’s PV power or grid.
Load supply source:
When PV power is available:
1. 1st PV, 2nd Battery, 3rd Grid
PV power will provide power to the load first. If it’s not sufficient, battery power will provide
power to the load. When battery power is running out or not available, grid will back up the
load.
2. 1st PV, 2nd Grid, 3rd Battery
PV power will provide power to the load first. If it’s not sufficient, grid will provide power to the
load. If grid is not available at the same time, battery power will back up the load.
When PV power is not available:
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1. 1st Grid, 2nd Battery: Grid will provide power to the load first. If grid is not available, battery
power will provide power backup.
2. 1st Battery, 2nd Grid: Battery power will provide power to the load first. If battery power is
running out, grid will back up the load.
NOTE: This option will become ineffective during AC charging time and the priority will
automatically become 1st Grid and 2nd Battery order. Same as Grid-tie with backup (I).
Grid-tie with backup (IV):
Users are only allowed to set up peak time and off-peak electricity demand.
Working logic under peak time:
PV energy supply priority: 1st Load, 2nd Battery and 3rd Grid
PV power will provide power to the load first. If PV power is sufficient, it will charge battery next.
If there is remaining PV power left, it will feed-in to the grid. Feed-in to the grid is disabled in
default.
Battery charging source: PV only
Only after PV power fully supports the load, the remaining PV power is allowed to charge battery
during peak time.
Load supply source: 1st PV, 2nd Battery, 3rd Grid
PV power will provide power to the load first. If PV power is not sufficient, battery power will
back up the load. If battery power is not available, grid will provide the load. When PV power is
not available, battery power will supply the load first. If battery power is running out, grid will
back up the load.
Working logic under off-peak time:
PV energy supply priority: 1st Battery, 2nd Load and 3rd Grid
PV power will charge battery first. If PV power is sufficient, it will provide power to the loads. The
remaining PV power will feed to the grid.
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NOTE: The max. feed-in grid power setting is available in parameter setting. Please refer to
software manual.
Battery charging source: PV and grid charge battery
PV power will charge battery first during off-peak time. If it’s not sufficient, grid will charge
battery.
Load supply source: 1st PV, 2nd Grid, 3rd Battery
When battery is fully charged, remaining PV power will provide power to the load first. If PV
power is not sufficient, grid will back up the load. If grid power is not available, battery power
will provide power to the load.
Grid-Tie
In this operation mode, PV power only feeds in to the grid. No priority setting is available.
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Off-Grid
Off-Grid (I): Default setting for off-grid mode.
PV energy supply priority setting: 1st Load, 2nd Battery
PV power will provide power to the load first and then charge battery. Feed-in to the grid is not
allowed in this mode. At the same time, the grid relay is connected in Inverter mode. That means
the transfer time from inverter mode to battery mode will be less than 15ms. Besides, it will
avoid overload fault because grid can supply load when connected load is over 5KW.
Battery charging source:
1. PV or Grid: If there is remaining PV power after supporting the loads, it will charge battery first.
Only until PV power is not available, grid will charge battery. (Default)
2. PV only: It is only allow PV power to charge battery.
3. None: It is not allowed to charge battery no matter it’s PV power or grid.
Load supply source:
When PV power is available:
1. 1st PV, 2nd Battery, 3rd Grid (Default)
PV power will provide power to the load first. If it’s not sufficient, battery power will provide
power to the load. When battery is running out or not available, grid will back up the load.
2. 1st PV, 2nd Grid, 3rd Battery
PV power will provide power to the load first. If it’s not sufficient, grid will provide power to the
load. If grid is not available at the same time, battery power will back up.
When PV power is not available:
1. 1st Grid, 2nd Battery
Grid will provide power to the load first. If grid is not available, battery power will provide power
backup.
2. 1st Battery, 2nd Grid (Default)
Battery power will provide power to the load first. If battery power is running out, grid will back
up the load.
NOTE: This option will become ineffective during AC charging time and the priority will
automatically become 1st Grid and 2nd Battery order. Otherwise, it will cause battery damage.
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Off-Grid (II)
PV energy supply priority setting: 1st Battery, 2nd Load
PV power will charge battery first. After battery is fully charged, if there is remaining PV power
left, it will provide power to the load. Feed-in to the grid is not allowed under this mode. At the
same time, the grid relay is connected in Inverter mode. That means the transfer time from
inverter mode to battery mode will be less than 15ms. Besides, it will avoid overload fault
because grid can supply load when connected load is over 5KW.
Battery charging source:
1. PV or Grid: If there is remaining PV power after supporting the loads, it will charge battery first.
Only until PV power is not available, grid will charge battery.
2. PV only: It is only allow PV power to charge battery.
3. None: It is not allowed to charge battery no matter it’s PV power or grid.
NOTE: It’s allowed to set up AC charging duration.
Load supply source:
When PV power is available: 1st PV, 2nd Grid, 3rd Battery
PV power will provide power to the load first. If it’s not sufficient, grid will provide power to the
load. If grid is not available at the same time, battery power will back up the load.
When PV power is not available:
1. 1st Grid, 2nd Battery: Grid will provide power to the load first. If grid is not available, battery
power will provide power backup.
2. 1st Battery, 2nd Grid: Battery power will provide power to the load first. If battery power is
running out, grid will back up the load.
NOTE: This option will become ineffective during AC charging time and the priority will
automatically become 1st Grid and 2nd Battery order. Otherwise, it will cause battery damage.
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Off-Grid (III)
PV energy supply priority setting: 1st Load, 2nd Battery
PV power will provide power to load first and then charge battery. Feed-in to the grid is not
allowed in this mode. The grid relay is NOT connected in Inverter mode. That means the transfer
time from inverter mode to battery mode will be about 15ms. If connected load is over 5KW
and grid is available, this inverter will allow grid to provide power to the loads and PV power to
charge battery. Otherwise, this inverter will activate fault protection.
Battery charging source:
1. PV or Grid: If there is remaining PV power after supporting the loads, it will charge battery first.
Only until PV power is not available, grid will charge battery.
2. PV only: PV power is only allowed to charge battery.
3. None: It is not allowed to charge battery no matter it’s PV power or grid.
NOTE: It’s allowed to set up AC charging duration.
Load supply source:
When PV power is available: 1st PV, 2nd Battery, 3rd Grid
PV power will provide power to the load first. If it’s not sufficient, battery power will back up the
load. Only after battery power is running out, Grid will back up the load.
When PV power is not available:
1. 1st Grid, 2nd Battery: Grid will provide power to the load first. If grid is not available, battery
power will provide power backup.
2. 1st Battery, 2nd Grid: Battery power will provide power to the load first. If battery power is
running out, grid will back up the load.
NOTE: This option will become ineffective during AC charging time and the priority will
automatically become 1st Grid and 2nd Battery order. Otherwise, it will cause battery damage.
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14. Operation
Operation and Display Panel
The operation and display panel, shown in the diagram below, is 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
LED Indicator
Messages
Green
Solid On
Output is powered by utility in Line mode.
Flashing
Output is powered by battery or PV in battery mode.
Yellow
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
/OFF
To exit setting mode
To go to previous selection or decrease value in setting mode
Enter setting mode
To go to next selection or increase value in setting mode
Enter setting mode
/ON
To confirm the selection in setting mode or turn on AC output
LCD Display Icons
LED indicators
Function keys
LCD display
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Icon
Function
Input source information
Indicates the AC input
Indicates the 1st PV panel input
Indicates the 2nd PV panel input
Left digital display information
Indicate input voltage, input frequency, battery voltage, PV1 voltage, PV2
voltage, charger current
Middle digital display information
Indicates the setting programs.
Indicates the warning and fault codes.
Warning: Flashing with warning code
Fault: display with fault code
Right digital display information
Indicate the output voltage, output frequency, load percent, load VA, load
W, PV1 charger power, PV2 charger power, DC discharging current.
Battery information
Indicates battery level by 0-24%, 25-49%, 50-74% and 75-100% and charging
status.
Load information
Indicates overload.
Indicates load level by 0-24%, 25-49%, 50-74%, 75-100%.
0%~24%
25%~49%
50%~74%
75%~100%
Mode operation information
Indicates unit connects to the mains.
Indicates unit connects to the 1st PV panel
Indicates unit connects to the 2nd PV panel
Indicates the solar charger is working
Indicates the DC/AC inverter circuit is working.
Mute operation
Indicates unit alarm is disabled.
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LCD Setting
After pressing and holding “ ” or “ ” button for one second, the unit will enter setting
mode. Press “ ” or “ ” button to select setting programs. And then, press “ ” button
to confirm the selection or “ ” button to exit.
*IMPORTANT: It’s requested to enter password in the setting program with *. It will show
in the screen. Please press “ ” or “ ” button to change showing numbers. The password is
“000”. Press “ ” button to confirm password numbers.
Program
Description
Selectable option
01
Operation mode
Grid-tied with Backup I
(default)
Mode 1
PV priority:
Battery >> Load >> Grid
Grid-tied with Backup II
Mode 2
PV priority:
Load >> Battery >> Grid
Grid-tied with Backup III
Mode 3
PV priority:
Load >> Grid >> Battery
Grid-tied with Backup IV
Mode 4
PV priority (peak time):
Load >> Battery >> Grid.
PV priority (Off-peak time):
Battery >> Load >> Grid
Grid-tied with Backup V
Mode 5
PV priority (Grid is high):
Load >> Battery >> Grid
Grid-tied only
Mode 6
PV priority: Grid-tied only
Off-Grid
Mode 7
PV priority:
Load >> Battery
02
Charger source priority
Solar and Utility
(default)
Solar energy and AC will
charge together
Only Solar
Only charge by Solar energy
None
Charger disabled
03
Load Supply Source
(default)
PV >> Battery >> Grid
PV >> Grid >> Battery
04
AC Charger
AC charge enabled
AC charger disabled
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(default)
05
Feed-in to the grid
Feed-in to Grid disable
Feed-in to Grid enabled
(default)
06
Battery Feed-in the grid
Battery discharge enabled
Battery discharge disabled
(default)
07
AC Charger ON timer
Default 00:00
AC charger from 00:00 to
23:00
08
AC Charger OFF timer
Default 00:00
Stop AC charger from 00:00 to
23:00
09
AC Output ON timer
Default 00:00
AC output on from 00:00 to
23:00
0A
AC Output OFF timer
Default 00:00
AC output off from 00:00 to
23:00
11
Regulation standard *
(*It’s required to enter
password)
00: VDE
01: AS4777
02: dk
03: RD1663
04: G83
05: Taiwan
06: USH
07: USL
08: VDE4105(default)
09: Korea
10: Hongsun
11: Sweden
12
Nominal output volt. *
(*It’s required to enter
password)
208V
220V
230V
(default)
240V
13
Nominal output freq. *
(*It’s required to enter
password)
(default)
21
Max. feed-in grid power
Default 5500W, 0-5.5KW
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22
Max. charging current
Default 60A, 5~60A
23
Max. AC charging current
Default 60A, 5~60A
24
Bulk charging voltage
Default 56.0V, 50~62V
25
Floating charging voltage
Default 54V, Range 50~62V
26
Stop discharge voltage when
grid unavailable
Default 42V, Range 40~51V
27
Stop discharge voltage when
grid available
Default 48V, Range 40~51V
28
Start discharge voltage when
grid available
Default 54V, Range 42~62V
29
Start discharge voltage when
grid unavailable
Default 54V, Range 42~62V
2A
Max. battery discharging
current in hybrid mode
Default 150A, 20~150A
2B
Generator compatible
Enabled
Disabled (default)
2C
LCD backlight sleep timer
Backlight on
Default 60s, Range 0~100s
2D
Alarm control
Alarm on
(default)
Alarm off
31
Real time setting – Minute
Default 00, Range 00 ~ 59
32
Real time setting – Hour
Default 00, Range 00 ~ 23
33
Real time setting – Date
Default 01, Range 01 ~ 31
34
Real time setting – Month
Default 01, Range 01 ~ 12
35
Real time setting – Year
Default 16, Range 16 ~ 99
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Operating Mode Description
Operating
Behaviors
LCD display
Standby mode
(*Charge mode)
No output power, solar
or utility charger
available
Only utility power available, charger priority is
OSO, no charging.
Only utility power available, charger priority is not
OSO, charged by utility power.
Only PV available, charged by PV power. *
Utility power and PV available, charger priority is
SNU, feed to grid disable or PV energy no remain
power to feed to grid, charging by utility and PV.
Utility power and PV available, charger priority is
not SNU, feed to grid disable or PV energy is not
enough to charge battery, charging by PV
Utility power and PV available, feed to grid is
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enabled and PV energy is larger and it charges
battery,
1. PV charge battery.
2. Remain energy feed to grid.
No charging.
Grid mode
(**Bypass mode)
Output power from
utility. Charger available
Only utility power available, charger priority is
OSO. **
1. No charging.
2. SUB or SBU&&Battery not high to discharge,
no discharge.
3. Utility power provides power to the load.
Only utility power available, charger priority is not
OSO, SUB or SBU&&battery not high to discharge.
1. AC charging the battery.
2. Utility power provides power to the load.
Only utility power available, SBU&&battery is high
enough to discharge,
1. Battery discharge, no charging.
2. Battery and utility power provide power to
the load.
PV and utility power available, PV doesn’t charge
battery.
1. No charging.
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2. PV provides power to the load.
3. PV feeds energy to the grid.
PV and utility power available, PV energy is well
enough to charge battery and provide energy to
load, feed to grid is enabled and it has enough
power to feed to grid
1. PV charges the battery.
2. PV provides power to the load.
3. PV feeds energy to the grid.
Battery mode
Output power from
battery or PV
PV and battery supply power to the load
PV supply power to the load, and remaining energy
charges the battery
PV is not available, and battery supplies power to
the load
When utility power is available, the utility icon will
show.
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Fault mode
No output
When there is only utility power available, no
charging occurs no matter what the priority is.
No PV or AC, no charging
Select Displays
The LCD display will be switched in turns by pressing “UP” or “DOWN” key. The selectable
information is switched in order as: input voltage, input frequency, PV voltage, battery voltage,
charging current, output voltage, output frequency, load percentage, load in VA, load in Watt, and
load in Watt. If no button be pressed in 1 min, it will return to default display.
Selection
LCD display
Input voltage and output voltage
Input frequency and output frequency
Battery voltage and output voltage
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Battery voltage and load percentage
Battery voltage and load VA
Battery voltage and load W
PV1 voltage and PV1 input power
PV2 voltage and PV2 input power
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Charging current
PV energy (by day)
PV energy (in total)
Real Date
Real time
DSP firmware version
(FW issued date)
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MCU firmware version
(FW issued date)
15. Charging Management
Charging Parameter
Default Value
Note
Charging current
60A
It is adjustable via software from
5Amp to 60Amp.
Floating charging voltage (default)
54.0 Vdc
It is adjustable via software from
50Vac to 62Vdc.
Max. absorption charging voltage
(default)
56.0 Vdc
It is adjustable via software from
50Vac to 62Vdc.
Battery overcharge protection
64.0 Vdc
Charging process based on default
setting.
3 stages:
1st – max. charging voltage increases
to 56V;
2nd - charging voltage will maintain at
56V until charging current is down to
12 Amp;
3rd- floating charging is at 54V.
Bulk FloatingAbsorption
time
U
time
I
Bulk Voltage
Float Voltage
This inverter can connect to following battery types: sealed lead acid battery, vented battery, gel
battery and lithium battery. The detailed installation and maintenance explanations of the
external battery pack are provided in the manual of the manufacturer’s external battery pack.
If using sealed lead acid battery, please set up the max. charging current according to the
formula below:
The maximum charging current = Battery capacity (Ah) x 0.2
For example, if you are using 300 Ah battery, then, maximum charging current is 300 x 0.2=60
(A). Please use at least 50Ah battery because the settable minimum value of charging current is
10A. If using AGM/Gel or other types of battery, please consult with installer for the details.
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Please refer to the setting below:
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16. Maintenance & Cleaning
Check the following points to ensure proper operation of the whole solar system at regular
intervals.
Ensure all connectors of this inverter are cleaned all the time.
Before cleaning the solar panels, be sure to turn off PV DC breakers.
Clean the solar panels during the cool time of the day, whenever it is visibly dirty.
Periodically inspect the system to make sure that all wires and supports are securely
fastened in place.
Battery Maintenance
Servicing of batteries should be performed or supervised by personnel with knowledge
about batteries and the required precautions.
Replace the batteries with the same type and number of batteries or battery packs.
The following precautions should be observed when working on batteries:
a) Remove watches, rings, or other metal objects.
b) Use tools with insulated handles.
c) Wear rubber gloves and boots.
d) Do not lay tools or metal parts on top of batteries.
e) Disconnect charging source prior to connecting or disconnecting battery terminals.
f) Determine if battery is inadvertently grounded. If inadvertently grounded, remove
source from ground. Contact with any part of a grounded battery can result in electric
shock. The likelihood of such shock can be reduced if such grounds are removed during
installation and maintenance (applicable to equipment and remote battery supplies
without a grounded supply circuit).
WARNING: There are no user-replaceable parts inside the inverter. Do not attempt to
service the unit by yourself.
CAUTION: A battery can present a risk of electric shock and high short-circuit current.
CAUTION: Do not dispose of batteries in a fire. The batteries may explode.
CAUTION: Do not open or mutilate batteries. Released electrolyte is harmful to the
skin and eyes. It may be toxic.
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17. Trouble Shooting
When there is no information displaying in the LCD, please check if PV module/battery/grid
connection is correctly connected.
NOTE: The warning and fault information can be recorded by remote monitoring software.
17-1. Fault code reference
When a fault occurs, the icon will flash as a reminder. See below for fault codes for
reference.
Situation
Solution
Fault Event
01
DC bus voltage exceeds the upper
threshold
Disconnect AC circuit breaker first. Then,
disconnect DC circuit breaker.
Until LCD screen completely shuts down, turn on
DC breaker first. It will show “No Utility” in LCD
screen. Then, turn on AC breaker. After 300
seconds, the system will automatically connect to
the grid.
If the error message still remains, please contact
your installer.
02
DC bus voltage falls below the
lower threshold
03
DC bus voltage soft-start is timeout
04
Inverter soft-start is time-out
05
An Inverter overcurrent event is
detected
07
An relay failure event is detected
08
DC component in the output
current exceeds the upper
threshold
11
Over-current on PV input is
detected
14
Inverter DC component exceeds
the allowable range
16
Leakage current CT failed
06
Over temperature fault
The internal temperature is higher than specified
temperature.
Leave inverter to cool down to room temperature.
If the error message still remains, please contact
your installer.
09
PV input voltage exceeds the
upper threshold
Check if the open circuit voltage of PV modules is
higher than 500Vdc.
If PV open circuit voltage is less than 500Vdc and
the error message remains, pelase contact your
installer.
10
Auxiliary power* failed
*Auxiliary power means switch
power supply.
Turn off the inverter. Then, restart the inverter. If
the error message still remains, please contact
your installer.
12
Leakage current exceeds the
allowable range
The ground voltage is too high.
Please disconnect AC breaker first and then DC
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breaker. Check if grounding is connected properly
after LCD screen completely shuts down.
If grounding is correctly connected, turn on DC
brearker. After it displays “No Utility” in LCD
screen, turn on AC breaker. After 300 seconds, the
system will automatically connect to the grid.
If the error message still remains, please contact
your installer.
13
PV insulation resistance is too low
Check if the impedance between positive and
negative poles to the ground is greater than 1MΩ.
If the impedance is lower than 1MΩ, please
contact your installer.
15
A difference occurred in the
readings from the main and
secondary controllers
Please disconnect AC breaker first and then
disconnect DC breaker.
After LCD screen is completely off, turn on DC
breaker. Until it shows “No Utility” in LCD display,
turn on AC breaker. After 300 seconds, the system
will automatically connect to the grid.
If error message remains, please contact your
installer.
17
Communication with the main
and secondary controllers is
interrupted
20
Discharge circuit fault
21
Soft start in battery discharge
fails
22
Charging voltage is too high
Check if the connection between battery and
inverter is good. Make sure battery condition is
ok. Then, restart the inverter. If error message
remains, please contact your installer.
23
Overload fault
Remove exessive loads. Be sure the total power
consumption of the connected loads are less than
that of the maximum which this inverter can
support. Then, restart the inverter.
24
Battery disconnected
Check if battery cable is connected firmly. If error
message remains, please contact your installer.
25
Inverter current is too high for a
long time
Remove exessive loads.
Then, restart the inverter.
26
Short circuited on inverter output
Turn off the inverter.
Disconnect AC circuit breaker first. Then,
disconnect DC circuit breaker and then
disconnect the loads.
Please check if load circuit is ok. After removing
the error, turn on the PV DC breaker and battery
breaker.
Turn on the inverter. If error message remains,
please contact your installer.
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27
Fan fault
Please check if fans are running ok.
If fans are running ok, please shut down inverter
first and then restart it.
If fans stop running or error message remains
after restart the inverter, please contact your
installer.
28
OP Current Sensor fault
Shut down the inverter completely.
Restart the inverter to see if it’s ok.
If error message still remains, please contact
your installer.
29
Charger failure
Shut down the inverter completely.
Restart the inverter to see if it’s ok.
If error message still remains, please contact
your installer.
30
Version mismatch between
controller board and power
board
Shut down the inverter completely.
Restart the inverter to see if it’s ok.
If error message still remains, please contact
your installer.
31
Reverse connection of input and
output wires
Shut down the inverter completely.
Check if grid wires are connected to AC output
terminals. If mis-connected, re-connect it
correctly. And turn on the inverter again. If error
message still remains, please contact your
installer.
17-2. Warning Reference Codes
When a warning event occurs, the icon will flash as a reminder. See warning codes below
for reference.
Situation
Solution
Warning Event
02
Internal EEPROM failed
Restart the unit again.
If problem still exists, please contact your installer.
04
Battery low
Recharge or replace the battery
07
Overload
Try to reduce the applied load
17
Battery open
Re-connect the battery
20
Over temperature
Check the ventilation around the unit Try to
reduce the load
Check if fans run normally
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18. Specifications
MODEL
FSP552PV-230H-48
RATED POWER
5,500 W
PV INPUT (DC)
Maximum DC Power
6,500 W
Nominal DC Voltage
360 Vdc
Maximum DC Voltage
500 Vdc
Working DC Voltage Range
120 Vdc ~ 500 Vdc
Start-up Voltage / Initial Feeding Voltage
116 Vdc / 150 Vdc
MPP Voltage Range
120 Vdc ~ 450 Vdc
Full Load MPP Voltage Range
250 Vdc ~ 450 Vdc
Maximum Input Current
2*13 A
GRID OUTPUT (AC)
Nominal Output Voltage
230 Vac
Output Voltage Range
184 - 265 Vac
Output Frequency Range
47.5 ~ 51.5 Hz or 59.3~ 60.5Hz
Max. Output Current
23.9 A
AC INPUT
AC Start-up Voltage
120-140 Vac
Auto Restart Voltage
180 Vac
Acceptable Input Voltage Range
170 - 280 Vac
Nominal Frequency
50 Hz / 60 Hz
AC Input Power
5,500VA/5,500W
Maximum AC Input Current
40 A
BATTERY MODE OUTPUT (AC)
Nominal Output Voltage
230 Vac Pure sine wave
Output Frequency
50 Hz / 60 Hz (auto sensing)
Output Power
5,500VA/5,500W
Efficiency (DC to AC)
93%
BATTERY & CHARGER (Lead-acid/Li-ion)
DC Voltage Range
40 – 63 Vdc
Nominal DC Voltage
48 Vdc
Maximum Battery Discharging Current
150 A
Maximum Charging Current
60 A
GENERAL
PHYSICAL
Dimension, D x W x H (mm)
110 x 450 x 445
Net Weight (kgs)
16
INTERACE
Communication Port
RS-232/USB
Intelligent Slot
Optional SNMP, Modbus, AS-400
ENVIRONMENT
Humidity
0 ~ 90% RH (No condensing)
Operating Temperature
-10 to 40°C
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http://www.fsp-group.com.tw/en/product/PVInverter.html
FSP Technology Inc.
No. 22, JianGuo E. Rd., Taoyuan City,
Taiwan, 330
Tel: +886 375 9888
Fax: +886 375 6966
pvinverter.fsp@gmail.com
www.fsp-group.com.tw
Copyright © 2015 FSP Technology Inc.
All rights reserved.
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