Epever UP1500-M3222 User manual

UPower Series
——Inverter/changer
User Manual
Models：
UP1500-M3222
UP2000-M3322
UP3000-M3322
UP3000-M2142

Important Safety Instructions
Please reserve this manual for future review.
Please reserve this manual for future review. This manual contains all instructions of safety,
installation and operation for the inverter/charger.
Read carefully all the instructions and warnings in the manual before installation.
Non-safety voltage exists inside the inverter/charger, users must not dismantle it by itself
in order to avoid personal injury, contact professional maintenance personnel of our
company in need of maintenance.
Keep the inverter/charger beyond the reach of children.
Do not place the inverter/charger in a damp, oily, inflammable and explosive or a severe
environment with a large amount of dust accumulation.
The utility input and AC output are of high voltage, don’t touch wire connecting locations.
Install the inverter/charger in well ventilated places, it’s shell may become very hot
during operation.
It is suggested to install appropriate external fuses/breakers.
Make sure switching off all connections with PV array and the fuse/breakers close to
battery before inverter/charger installation and adjustment.
Power connections must remain tight to avoid excessive heating from a loose
connection.
It’s an off-grid inverter/charger, if connect to the grid, it may be damaged.
This inverter/charger can only be used singly, parallel connection or in series will
damage the inverters.

CONTENTS
1. General Information...................................................................................1
1.1 Overview....................................................................................1
1.2 Characteristics ..........................................................................2
1.3 Designations of models ...........................................................3
1.4 Schematic Diagram for Connections.....................................3
2. Installation Instructions ............................................................................4
2.1 General Installation Notes.......................................................4
2.2 Wire Size& breaker...................................................................4
2.3 Mounting ....................................................................................6
3. Interface Instruction ..................................................................................9
3.1 Indicator......................................................................................9
3.2 Buttons.....................................................................................10
3.3 Real-time interface.................................................................10
3.4 Setting interface......................................................................13
3.5 Other function..........................................................................15
4. Protection.................................................................................................17
5. Troubleshooting.......................................................................................18
5.1 Fault..........................................................................................18
5.2 Troubleshooting ......................................................................18
6. Maintenance.............................................................................................19
7. Technical Specifications.........................................................................20

1
1. General Information
1.1 Overview
The UPower series is a new type of the inverter/charger combining with solar & utility charging
and AC output, which adopts a multi-core processor design and advanced MPPT control
algorithm, and has the features of high response speed, high reliability and high
industrialization standard. It offers four charging modes to Solar priority, Utility priority, Solar
and Utility & Solar; two output modes for Battery and Utility, meeting the various application
demands.
The up-to-date optimized MPPT tracking technology is adopted for the PV charging modules.
It can quickly track the maximum power point of the PV array in any environment and acquire
the maximum energy of solar panel in real time;
The advanced control algorithm is adopted for AC-DC charging modules that realize fully
digitalized double closed-loop control for voltage and current, with high control precision, small
volume. The input range of AC voltage is wide, the output DC charging voltage/current is
continuously adjustable in a certain range, and the complete input/output protection functions
can offer stable and reliable charging and protection to the battery.
The DC-AC inverter modules are based on full digital and intelligent design. It adopts the
advanced SPWM technology, outputs the pure sine wave and converts 24/48VDC to
220/230VAC suitable for AC loads of household appliances, electric tools, commercial units,
electronic audio and video devices etc.
The product adopts 4.2 inch LCD display design, which real-time displays the operational data
and running state of the system. The comprehensive electronic protection function guarantees
more safe and more stable operation of the system.
Features：
Adoption of the advanced SPWM technology, with pure sine wave output
Fully digitalized voltage and current double closed-loop control
Advanced MPPT technology, with efficiency no less than 99.5%.
Four charging mode: Solar priority, Utility priority, Utility & solar and Solar
Two OUTPUT mode: Battery and Utility
LCD design that enables dynamic display of system running data and operating state
Provided with common interface and advanced interface
Multiple LED indicators that instantly indicate the operating state of the system
2P circuit breaker provided at the utility input end
Independent control of AC output with AC OUT button
Battery temperature compensation function.
Extensive Electronic protection

2
1.2 Characteristics
①
Mounting Hole
⑦
RTS★interface
②
Captive screw (2)
⑧
Relay interface
③
AC output terminal
⑨
Remote interface
④
Utility input terminal
⑩
Reserved communication interface
⑤
Ground terminal
⑪
Inverter/charger switch
⑥
Battery input terminal
⑫
PV input terminal
★The temperature sensor short-circuited or damaged, the controller will be charging or
discharging at the default temperature 25 ºC.
Figure 1 Product appearance

3
1.3 Designations of models
1.4 Schematic Diagram for Connections
Warning：Confirm the AC equipment according to the power of the inverter/charger
selected, the maximum power value that exceeds its power, therefore is prohibited.

4
2. Installation Instructions
2.1 General Installation Notes
Please read the entire installation instructions to get familiar with the installation steps before
installation.
Be very careful when installing the batteries, especially flooded lead-acid battery. Please
wear eye protection, and have fresh water available to wash and clean any contact with
battery acid.
Keep the battery away from any metal objects, which may cause short circuit of the battery.
Explosive battery gases may come out from the battery during charging, so make sure
ventilation condition is good.
Ventilation is highly recommended if mounted in an enclosure. Never install the controller in
a sealed enclosure with flooded batteries! Battery fumes from vented batteries will corrode
and destroy the controller circuits.
Lead-acid battery is recommended, other kinds please refer to the battery manufacturer.
Loose power connections and corroded wires may result in high heat that can melt wire
insulation, burn surrounding materials, or even cause fire. Ensure tight connections and use
cable clamps to secure cables and prevent them from swaying in mobile applications.
Battery connection may be wired to one battery or a bank of batteries. The following
instructions refer to a singular battery, but it is implied that the battery connection can be
made to either one battery or a group of batteries in a battery bank.
Select the system cables according to 5A/mm2or less current density in accordance with
Article 690 of the National Electrical Code, NFPA 70.
For outdoor installation, keep out of the direct sunshine and rainwater infiltration.
High voltage still exists inside the inverter/charger after switching off the power switch, do
not turn on or touch the internal units, conduct the associated operation only after
discharging the electric capacity.
Do not place the inverter/charger in a damp, oily, inflammable and explosive or a severe
environment with a large amount of dust accumulation.
Prohibit reverse connection at DC input end otherwise it may damage the equipment or
unpredictable danger will occur.
The utility input and AC output are of high voltage, do not touch the wire connecting
locations.
2.2 Wire Size& breaker
The wiring and installation methods must conform to all national and local electrical code
requirements.

5
Recommended wire and circuit breaker of PV
Model
PV wire size
Breaker
UP1500-M3222
10mm2/8AWG
2P—63A
UP2000-M3322
10mm2/8AWG
2P—63A
UP3000-M3322
10mm2/8AWG
2P—63A
UP3000-M2142
6mm2/10AWG
2P—32A
NOTE: When the PV modules connect in series, the open circuit voltage of the PV array must
not exceed 92Vor 138V at 25℃environment temperature.
Recommended wire of Utility
Model
Utility wire size
UP1500-M3222
2.5mm2/14AWG
UP2000-M3322
4mm2/12AWG
UP3000-M3322
6mm2/10AWG
UP3000-M2142
6mm2/10AWG
NOTE: The utility input has the circuit breaker already and there is no need to add any more.
Recommended wire and circuit breaker of battery
Model
Battery wire size
Breaker
UP1500-M3222
16mm2/6AWG
2P—100A
UP2000-M3322
25mm2/4AWG
2P—125A
UP3000-M3322
35mm2/2AWG
2P—200A
UP3000-M2142
16mm2/6AWG
2P—100A
NOTE: Type of circuit breaker is selected based on non-independent connection of inverter at
the battery end.
Recommended wire and circuit breaker for AC output
Model
AC wire size
Breaker
UP1500-M3222
2.5mm2/14AWG
2P—10A
UP2000-M3322
2.5mm2/14AWG
2P—16A
UP3000-M3322
4mm2/12AWG
2P—16A
UP3000-M2142
4mm2/12AWG
2P—16A
NOTE: The wire used for connection is for reference only, use thicker wires to lower
the voltage drop and improve the system performance when the distance between
the components is far.
NOTE: The above wire and the circuit breaker are for recommended use only,
please choose the suitable wire and circuit breaker according to the practical
situation.

6
2.3 Mounting
Installation steps：
Step1：Determination of Installation Location and Heat-dissipation Space
Determination of installation location: The inverter/charger shall be installed in a place with
sufficient air flow through the radiators of the controller and a minimum clearance of 150 mm
from the upper and lower edges of the controller to ensure natural thermal convection. Please
see Figure 2-1: Mounting.
WARNING: Risk of explosion!
Never install the controller with flooded batteries in a sealed enclosure! Do not
install the battery in a confined area where battery gas can accumulate.
Step 2：Take down the terminal protective cover
Figure2-1 Mounting
※Screw off the screws and
take down the terminal
protective cover of the
inverter/charger before
wiring.

7
Step 3：Wiring
Connect the system in an order of battery load PV array Utility
in accordance with Figure 2-2: Wiring Diagram and disconnect the system in the
reverse order.
Warning: Danger, High-voltage! Utility input, AC output and PV array will produce
very high voltage, make sure to disconnect the circuit breaker/ fuse before wiring.
Warning: Do not turn on the circuit breaker/ fuse in course of wiring, and at the
same time, ensure that the wires of “+”, “-” are correctly connected.
Warning: A circuit breaker must be installed at the battery end, for selection, refer
to Section 2.3 "Wire and Circuit Breaker".
NOTE: If the inverter/charger is to be used in an area with frequent lightning strikes, it is
recommended to install an external surge arrester.
Step 4：Grounding
Grounding connection must be made when utility is connected to the inverter/charger. The
inverter/charger has dedicated grounding terminal as shown in Fig. 2-2⑤, the grounding must
be reliable, the grounding wire shall be the thicker wire (wire is not less than 4mm2), the
grounding point shall be as close as possible to the inverter/charger, the grounding wire shall
be the shorter, the better.
Step 5：Install the terminal protective cover
Step 6：Connect accessory
Connect the remote temperature sensor cable (model: RTS300R47K3.81A)
Connect one end of the remote temperature sensor cable to the interface⑦
Figure 2-2 Wring Diagram

8
and place the other end close to the battery.
NOTE: The temperature sensor short-circuited or damaged, the inverter/charger will
be charging or discharging at the default temperature 25℃.
Step 7：Recheck if the wire connection is correct
Step 8：Powered on the inverter/charger
①Turn on the circuit breaker at the battery end.
②Switch on the switch then the inverter indicator is on.
③Turn on the breaker of PV array and Utility.
④Turn on the AC load when the AC output is normal.
NOTE: In case the power is supplied to the different AC loads, it is suggested to turn
the loads with larger surge current, wait till the load operation is stable, then turn on
the loads with smaller surge current.
NOTE: In case the inverter/charger is not in normal operation, or LCD or indicator
displays abnormal, refer to Section 5 to clear the fault or contact the after-sale
service personnel of our company.

9
3. Interface Instruction
3.1 Indicator
Indicator
Color
Status
Instruction
Green
OFF
No utility
On Solid
Utility connection normal but no
charging
Slowly Flashing
Utility charging
Fast Flashing
Utility charge module fault
Green
OFF
No PV
On Solid
PV connection normal but no charging
Slowly Flashing
PV charging
Fast Flashing
PV charge module fault
Green
OFF
Inverter turn off
On Solid
Inverter turn on
Slowly Flashing
Inverter output
Fast Flashing
Inverter fault
Green
OFF
Load no output
On Solid
Load output
Green
OFF
Relay turn off
On Solid
Relay turn on
Green
OFF
Input voltage(3.3～12VDC)
On Solid
No Input voltage
Green
OFF
Inverter output
On Solid
Utility output
Red
OFF
Device normal
On Solid
Device fault

10
3.2 Buttons
Operation
Instruction
Press the button
Exit the current interface
Press the button and hold on 5s
Clear the faults
Press the / button
Browse interface：Up/Down
Setting interface：Up/Down
Press the button
Switch to "Browse Parameter Column"
Determine the setting parameters
Press the button and hold on 5s
Switch the" Real Time Interface" over to "Set
Browse Interface"
Switch the "Set Browse Interface" over to
"Parameter Setting Interface"
Press the button and hold on 5s
Inverter ON/OFF
3.3 Real-time interface
Icon：
Icon
instruction
Icon
instruction
Utility connecting
PV connecting
Utility no connecting
PV no connecting
Load ON
Load OFF

11
Battery capacity level
8～25%
Battery capacity level
25～50%
Battery capacity level
50～75%
Battery capacity level
75～100%
Item
Setting
Content
①
INPUT
Solar priority
Utility priority
Utility & solar
Solar
②
OUTPUT
Battery
Utility
③
Load
AC output voltage
AC output current
AC output power
AC output frequency
④
Battery
Battery voltage
Max. charging current
(PV charging current+ Utility charging current)
Battery temperature
Battery SOC
⑤
PV
PV input voltage
PV charging current
PV charging power
PV charge energy
Utility
Utility input voltage
Utility charging current
Utility charging power
Utility charge energy
⑥
Battery Type
AGW
GEL
FLD
USER

12
①INPUT
Solar priority
The battery is charged in solar priority mode and when the battery voltage is lower than
“Restore Auxiliary Module Charging Voltage(VAON)”, the utility starts charging. When the
battery voltage reaches to “Stop Auxiliary Module Charging Voltage(VAOF)”, the utility stops
charging.
Utility priority
The battery is charged in utility priority mode and when the battery voltage is lower than
“Restore Auxiliary Module Charging Voltage (VAON)”, the solar starts charging. When the
battery voltage reaches to “Stop Auxiliary Module Charging Voltage(VAOF)”, the solar stops
charging.
②OUTPUT
Battery
Utility
VBAT＜VAON
VBAT＜VAOF
VBAT＜VAON
VBAT＜VAOF

13
3.4 Setting interface
1) Common interface
Operation:
Step1: Press the button and hold on 5s under the real-time interface.
Step2: Press the button and hold on 5s under the setting parameter interface.
Step3: Press the button to enter the parameter.
Step4: Press the button to exit the setting interface.
Setting：
Item
LCD
Instruction
Default
Range
1
BTP
Battery type
AGM
AGM
GEL
FLD
USER
2
CSP
Charge source priority
Solar
priority
Solar priority
Utility priority Utility & solar
Solar
3
OSP
Output source priority
Battery
Battery
Utility
4
TMU
Temperature unit
℃
℃/℉
5
BLT
Backlight time
30S
30S/60S/100S
6
BAS
Buzzer alarm switch
ON
ON/ OFF
7
LVD
Low voltage disconnect voltage
21.6V★
User 21.0～22.6V★
step size 0.2V★
8
LVR
Low voltage reconnect voltage
25.0V★
User 24.0～26.0V★
step size 0.2V★
★The voltage parameter are referred to 25℃, and twice in 48V system.
NOTE: When Output source priority is Battery and the battery voltage less than the
Low Voltage Disconnect Voltage(LVD adjustable), the system will switch utility to
supply power for load.

14
2) Advanced interface
Operation:
Step1: Press the + button and hold on 5s under the real-time interface.
Step2: Press the button and hold on 5s under the setting parameter interface.
Step3: Press the button to enter the parameter.
Step4: Press the button to exit the setting interface.
Setting：
Item
LCD
Instruction
Default
Range
9
BCT
Boost Charging Time
30M
30M/60M/120M/180M
10
BCV
Boost Charging Voltage
AGM：28.8V★
GEL：28.4V★
FLD：29.2V★
USER：28.8V★
User 25.0～29.6V★
Step size 0.2V★
11
BVR
Boost Voltage Reconnect
26.4V★
User: 25.0～28.0V★
Step size 0.2V★
12
FCV
Float Charging Voltage
27.6V★
User: 26.0～28.0V★
Step size 0.2V★
13
OVR
Over Voltage Reconnect Voltage
30.0V★
User: 29.0～31.0V★
Step size 0.2V★
14
OVD
Over Voltage Disconnect Voltage
32.0V★
User: 31.0～32.2V★
Step size 0.2V★
15
AOF
Stop auxiliary module charging
voltage
28.0V★
User: 24.0～29.6V★
Step size 0.2V★
16
AON
Restore auxiliary module charging
voltage
24.0V★
17
DON
Day connect ON voltage
22.2V★
User: 21.6～24.0V★
Step size 0.2V★
18
DOF
Day connect OFF voltage
24.0V★
User: 24.0～26.5V★
Step size 0.2V★
19
MCC
Max. charging current
60.0A◆
15.0～60.0A◆
20
PSM
Power saving mode
OFF
ON/OFF
21
CFA
Clear fault
OFF
ON/OFF
22
QCL
Clear the accumulated energy
OFF
ON/OFF
23
VER
Software version
U-1.0
—
★The voltage parameter are referred to 25℃, and twice in 48V system.
◆For the inverter/charger of different power, the current setting range is not the same,
see Table of Technical Parameters for details.