POMCube iCAN NetZero User manual

iCAN NetZero
User Manual
Intelligent Energy System
ICN1V1.0.4
®

Table of Contents
1. Preface.............................................................................1
2. Legal Compliance ...........................................................2
2.1 Disposal and Recycling ...................................................................2
2.2 FCC Statement................................................................................2
3. Safety Instructions..........................................................3
3.1 Personal Safety...............................................................................3
3.2 Working Area Safety........................................................................4
3.3 Cleaning and Maintenance..............................................................4
3.4 Warning Label..................................................................................5
4. About NetZero.................................................................5
4.1 Overview..........................................................................................5
4.2 Features ..........................................................................................5
4.3 Specification....................................................................................6
4.4 Parts and Functions.........................................................................7
5. Installation.....................................................................16
5.1 Tools and Safety Gear...................................................................16
5.2 Assemble the Rack........................................................................16
5.3 Install the Modules.........................................................................18
5.4 Internal Wiring ...............................................................................19
5.5 External Wiring..............................................................................21
6. Basic Operations ..........................................................24
6.1 Boot System..................................................................................24
6.2 Shut Down System........................................................................24
6.3 Getting Started with NetZero App..................................................25
6.4 Network Connection ......................................................................25
6.5 Reset Network...............................................................................26
7. Troubleshooting............................................................26
8. Emergency Situations ..................................................28
9. Warranty and Service....................................................30
9.1 Limited Warranty............................................................................30
9.2 Service...........................................................................................31

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1. Preface
Thank you for purchasing POMCube iCAN NetZero, an intelligent energy
system that helps provide a fully integrated power system for you. In order to
use your device safely, efficiently and effectively, please read the User
Manual thoroughly and follow the instructions provided before use. Please
keep this User Manual for future reference.
POMCube reserves the right to change products information and
specifications without notice. Products and specifications discussed herein
are for reference purposes only. All information discussed herein may change
without notice and without warranties of any kind. This document and all
information discussed herein remain the sole and exclusive property of
POMCube.
NetZero system may be updated for technical reasons without prior notice.
Purchasing this product indicates that you have acknowledged it and
accepted it.
Copyright© 2019 POMCube Inc. All rights reserved.

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2. Legal Compliance
2.1 Disposal and Recycling
This symbol on the product or on its packaging indicates
that this product must not be disposed of with your other
household waste. Instead, it is your responsibility to
dispose of your waste equipment by handing it over to a
designated collection point for the recycling of waste
electrical and electronic equipment. The separate collection and recycling of
your waste equipment at the time of disposal will help conserve natural
resources and ensure that it is recycled in a manner that protects human
health and the environment. For more information about where you can drop
off your waste equipment for recycling, please contact your local city office,
your household waste disposal service, or the shop where you purchased the
product.
2.2 FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference
that may cause undesired operation.
WARNING: Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.
NOTE: This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates uses and

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can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
RF Warning Statement
The device has been evaluated to meet general RF exposure requirement.
The device can be used in portable exposure condition without restriction.
3. Safety Instructions
WARNING: These safety instructions provide important safety information
and should be observed at all times. Please read them before using the
product.
3.1 Personal Safety
(1) This product is designed for indoor use only. Please keep it away from rain
or water. It is not suitable for use in damp rooms.
(2) Keep it away from children.
(3) Do not use the device if it is damaged or if it shows any kind of visible
damage.
(4) Do not handle the device and its components with wet hands. Failure to
observe this may result in electric shocks.

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(5) Do not dismantle the device.
(6) Do not damage any of the cable. Do not place it near any hot objects,
bend it excessively, twist it, pull it, or wrap it into a bundle.
(7) Shut down the device and switch off all the external input and output
switches from the home electrical panel for maintenance or extended
period of non-use.
(8) Always use genuine parts and accessories provided. Using parts and
accessories other than the provided one may cause short circuits or
overheating, and result in electric shock or fire.
3.2 Working Area Safety
(1) Always place the device on an even and stable surface to prevent it
tipping over.
(2) Do not place the device in a place which is not strong enough to take the
full weight of it.
(3) Keep the device away from direct sunlight or moisture.
(4) Keep the device away from heat sources, such as stovetops or ovens
(5) Do not subject the device to extreme temperatures.
(6) Do not subject the device to strong impact or vibration.
(7) Keep the device away from potentially dangerous location, such as
flammable, explosive, chemical-laden or wet atmospheres where petrol or
flammable liquids are used for stored
3.3 Cleaning and Maintenance
It is recommended that you clean the device by wiping it gently using a soft
and dry cloth. Do not use water, chemical substances or detergents. These
may cause discoloration or corrosion to the product's exterior, and may cause
a fire or electric shock.
Do not attempt to repair the device or its accessories by yourself, as damage
or personal injury may occur. Damage caused by unauthorized repair is not

5
under the warranty. Please contact your local distributor for any possible
problems concerned with the product.
3.4 Warning Label
Please pay attention to the warning label and follow the instruction
mentioned.
POMCube disclaims all liability for any accidents or damage caused by using
the product in the ways that are not described in this User Manual or using
non-genuine parts or accessories.
4. About NetZero
4.1 Overview
iCAN NetZero relieves zero net energy homeowners from their daily chore in
managing battery and selecting the source of energy repeatedly. NetZero
automatically selects the most economical, reliable and sustainable energy
while keeping the system running 24/7 without human intervention. The
ultimate goal for NetZero is to eliminate the reliance of conventional power
produced from fossil energy and maximize the use of clean energy, whether
they are locally generated or from the grid.
4.2 Features
(1) Automated Operation
NetZero can control its built-in batteries, your solar and generator to maximize
the efficiency of your power system. All are performed automatically.
(2) Easy Installation
NetZero is designed in modular and therefore it is easy to install.
(3) Maintenance Free
The lithium batteries are maintenance free with the BMS (Battery

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Management System) built-in.
(4) Multiple Working Modes
NetZero supports both on-grid and off-grid power systems.
(5) App Monitoring
You can monitor and control your NetZero anywhere by using the app.
(6) Intelligent Learning
NetZero is able to improve the strategy for you based on the learning of your
daily energy usage.
4.3 Specification
Table 4.3.1: Specification
Model No.
PNZ-BBS1
Battery Quantity
4
5
6
AC1 (Grid)
90-140Vac, 50/60±5Hz, Max. 63A
AC2 (Generator)
AC Load
5.0kVA, 50/60Hz, 110/120/127Vac
Overload Cap.:120% >3s, 150% >0.15s
Solar Controller
Input Voltage: 200-650Vdc
Max. Input Power: 6.6kW
Max. Charge Power: 5.0kW
MPPT Voltage
245-550Vdc
300-550Vdc
360-550Vdc
Capacity
(100%)*1
44.8V90Ah
16.1kWh
20.2kWh
24.2kWh
51.2V90Ah
18.4kWh
23.0kWh
27.6kWh
Dimension
H*W*D: 1750*570*520mm / 70*22.5*20.5in
Weight*2
265Kg/585lbs
313Kg/690lbs
360Kg/795lbs
Operating
Environment
Temperature: 41-104°F/5-40°C
Humidity: 10%-90% (No Condensation)
Origin
China

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NOTE:
1. The actual battery DoD (Depth of Discharge) is at 80%.
2. Slight weight deviation for each device.
3. Vmpp@NOCT (Nominal Operating Cell Temperature)of solar panel string
should be greater than the minimum voltage of MPPT voltage. Refer to solar
panel specification for the data of Vmpp at NOCT condition.
4.4 Parts and Functions
NOTE: The images shown in this User Manual are for reference only and may
slightly differ from the actual product, and the actual product appearance
depends on your option.
(1) Top-level
Figure 4.4.1: NetZero Front View

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Table 4.4.1: Top-level Parts
No.
Parts
Functions
1
Rack
Mechanical support.
2
EMS Module
Manage the whole system.
3
Protection Cover
Protect the AC input/output connector.
4
PCSModule
Convert the power from AC to DC or from
DC to AC.
5
Solar Controller
Track the Max. Power Point of solar power,
charge the battery, power the load.
6
BCMS Module
Manage and protect all battery modules.
7
BatteryModule
Store electric energy.
(2) EMS Module
Figure 4.4.2: EMS Front View
Table 4.4.2: EMS Parts
No.
Parts
Functions
1
Wi-Fi Antenna
Enhance Wi-Fi signal.
2
NETWORK
RJ45 port, connect to the router/Internet.
3
USB
USB flash drive for storage of operation data.
4
RST
Wi-Fi reset button.

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5
SD
SD card for storage of operation data.
6
STATUS
Indicate the device status and the network
status:
Solid red: System startup in progress.
Blinking red: Ready for network connection.
Blinking green: Wi-Fi network and password
detected; connecting to router. If it blinks for
over 3 minutes, either the network or the
password might be incorrect.
Solid white: Connecting to the Internet or
troubles in Internet connection while the router
connection works properly.
Solid green: Internet connected successfully.
7
SOC
Indicate real-time battery capacity: Each light
represent 25% capacity. The lights blink in
sequence under system charging and
discharging.
Blinking indicate the communication timeout as
below:
EMS module:
PCS module:
Solar controller:
BCMS module:
8
ADD
The communication address of EMS module.
9
Dry Contact
NC1&COM1: Stop generator.

10
Others: Reserved.
10
RS485-2
Communicate with solar controller.
11
RS232
For the manufacturer’s debugging.
12
RS485-3
Communicate with PCS module.
13
RS485-4
Reserved, RJ45 port, follow RS485 protocol.
14
RS485-1
Reserved, RJ45 port, follow RS485 protocol.
15
CAN
Communicate with BCMS module.
16
DC-12V
DC12V power supply input.
NOTE: Either the USB flash drive or the SD card is provided to the device.
Removing it will cause the operation data lost.
(3) PCS Module
Figure 4.4.3: PCS Front View

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Table 4.4.3: PCS Parts
No.
Parts
Functions
1
AC Input /
Output
AC1 (GRID): Grid input.
AC2 (GEN): Generator input.
LOAD: Load output.
GND: Safety ground.
2
Power Supply
Status
On: Power supply is normal.
Off: No power.
3
MAIN
Load output switch.
4
B1-
Battery bus negative (-)#1.
5
B2-
Battery bus negative (-)#2.
6
B1+
Battery bus positive (+)#1.
7
B2+
Battery bus positive (+)#2.
8
Generator Start
and Stop
START-A&START-B: Start generator.
STOP-A&STOP-B: Stop generator.
9
Synchronizing
Signal
SYN&GND, for communication between two
NetZeroes-
10
DC-12V
DC12V power supply output.
11
RS485
Communicate with EMS module.
12
CAN
Communicate with other PCS modules, two
NetZeroes applied as split phase synchronize in
the signal interface.
13
STATUS
Indicate the power status of PCS module:
On: Power supply is normal.
Off: No power.
14
ADD
The communication address of PCS module.
If two NetZero are applied as split phase,
please set the 4 ADD switches accordingly:
#1 PCS: set ADD 1 down, ADD 2, 3, 4 up;

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#2 PCS: set ADD 2 down, ADD 1, 3, 4up.
NOTE: Either the USB flash drive or the SD card is provided to the device.
Removing it will cause the operation data lost.
(4) Solar Controller
Figure 4.4.4: Solar Controller Front View
Table 4.4.4: Solar Controller Parts
No.
Parts
Functions
1
PV1-
Solar power input negative (-) #1.
2
PV1+
Solar power input positive (+) #1.
3
PV2+
Solar power input positive (+) #2.
4
PV2-
Solar power input negative (-) #2.
5
PV SWITCH
Solar power input switch.
6
DC-12V
DC12V power supply output.
7
RS485-LINK2
Communicate with other solar controller.
8
RS485-LINK1
Communicate with EMS module.
9
STATUS
Indicate the power status of PV module:
On: Power supply is normal.
Off: No power.
10
ADD
The communication address of solar controller.

13
11
B1-
Battery bus negative (-) #1.
12
B2-
Battery bus negative (-) #2.
13
B3-
Battery bus negative (-) #3.
14
B1+
Battery bus positive (+) #1.
15
B2+
Battery bus positive (+) #2.
16
B3+
Battery bus positive (+) #3.
(5) BCMS Module
Figure 4.4.5: BCMS Front View
Table 4.4.5: BCMS Parts
No.
Parts
Functions
1
B-
Battery bus positive (-).
2
B+
Battery bus negative (+).
3
POWER
Power switch.
4
Power Switch
Reserved.
5
RS232
For the manufacturer’s debugging.
6
RS485-2
Reserved, RJ45 port, follow RS485 protocol.
7
RST
Reset BCMS module.

14
8
RS485-1 LINK2
Communicate with other BCMS module.
9
CAN-LINK1
Communicate with EMS module.
10
STATUS
Indicate BCMS module status:
Blinking blue: Boot up in progress;
Blinking green: Self-inspecting;
Solid green: Working normally;
Solid pink: Alarming
Solid red: In device protection or troubles.
11
SOC
Indicate real time battery capacity: Each light
represents 25% capacity. The lights blink in
sequence under system charging and
discharging.
12
ADD
The communication address of BCMS
module.
13
Dry Contact
Reserved. Four output and two input.
14
LINK
Communicate with battery module.
15
D+
DC bus positive (+).
16
D-
DC bus negative (-).
17
DC-12V
DC12V power supply output.

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(6) Battery Module
Figure 4.4.6: Battery Front View
Table 4.4.6: Battery Parts
No.
Parts
Functions
1
B-
Battery module positive (-).
2
B+
Battery module negative (+).
3
STATUS
Indicate battery module status:
Blinking yellow: Bootup in progress;
Blinking blue: Self-inspecting;
Solid green: Working normally;
Solid pink: Alarming;
Solid red: In device protection or troubles.
4
RS232
For the manufacturer’s debugging.
5
LINK PORT0
Communicate with battery module.
6
LINK PORT1
Communicate with battery or BCMS module.

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5. Installation
5.1 Tools and Safety Gear
NOTE: It is recommended to use proper tools and wear safety gears when
installing.
(1) Slotted Screw Driver
(2) 4mm Inner Hexagonal Screw Driver
(3) Wire Cutter
(4) Insulated Gloves
(5) Safety Goggles
(6) Safety Shoes
5.2 Assemble the Rack
(1) Put the frames and beams together as the figure shown. Pay attention to
the directions of the opening side of beams.
Figure 5.2.1: Put the Frames and Beams Together
(2) Install the screws to fasten the frames and beams.
Beam
4pcs
Left Side Frame
Right Side Frame
Opening Side
of the Beams

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Figure 5.2.2: Install the Screws
(3) Fasten the floor mounting part with screw.
Figure 5.2.3: Fasten the Floor Mounting Part
(4) Put the rack where NetZero will be placed and mount it to the floor and
wall with anchor bolts if necessary.Make sure the rack is horizontal and
the front side faces forward. Pay attention to the maintenance space
requirement for each side.
Screw M5*8
32pcs
Floor Mounting Part
4pcs
Screw M8*25
4pcs