POMCube iCAN NetZero PNZ-BES1-5K User manual

iCAN NetZero
User Manual
Intelligent Energy System
ICN2V1.0.0
®

Table of Contents
1. Preface.............................................................................1
2. Legal Compliance ...........................................................1
2.1 Disposal and Recycling ...................................................................1
2.2 FCC Statement................................................................................2
3. Safety Instructions..........................................................3
3.1 Personal Safety...............................................................................3
3.2 Working Area Safety........................................................................3
3.3 Cleaning and Maintenance..............................................................4
3.4 Warning Label..................................................................................4
4. About NetZero.................................................................5
4.1 Overview..........................................................................................5
4.2 Specification....................................................................................5
4.3 Parts and Functions.........................................................................7
5. Installation.....................................................................15
5.1 Tools and Safety Gear...................................................................15
5.2 Assemble the Rack........................................................................16
5.3 Install the Modules.........................................................................17
5.4 Internal Wiring ...............................................................................19
5.5 External Wiring..............................................................................21
6. Basic Operations ..........................................................26
6.1 Boot System..................................................................................26
6.2 Shut Down System........................................................................26
6.3 Getting Started with NetZero App..................................................27
6.4 Network Connection ......................................................................27
6.5 Reset Network...............................................................................28
7. Troubleshooting............................................................28
8. Emergency Situations ..................................................31
9. Warranty and Service....................................................32
9.1 Limited Warranty............................................................................32
9.2 Service...........................................................................................32

1
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.
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

2
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
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.

3
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.
(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

4
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
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.

5
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 Specification
Table 4.2.1: Specification
Model No.
PNZ-BES1-5K
Grid / Generator
Voltage
90-140V
Frequency
60±5Hz
Current
Max. 63A
Load
Power
5.0kVA
Frequency
60Hz
Voltage
110/120/127V (Configurable)
Overload Cap.
120% >3s, 150% >0.15s
Battery
Module Spec
102.4V/54Ah
51.2V/108Ah
Module Quantity
2
3
4
5
Nominal Voltage
204.8V
307.2V
204.8V
256.0V
Rated Energy
11.0kWh
16.5kWh
22.1kWh
27.6kWh

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(100%DoD)*1
Solar
Input Voltage
200-650V
Input Power
Max. 15kW
MPPT Channels
2
Output Current
Max. 20A / 20A
MPPT Voltage
230-550V
Vmpp of String*2
245-550V
360-550V
245-550V
300-550V
General Specification
Dimension
H*W*D: 1610*570*510mm / 63.4*22.4*20.1in
Weight*3
Max. 360kg / 794lbs
Operating
Environment
Temperature: 41-104°F/5-40°C
Humidity: 10%-90% (No Condensation)
Split Phase
Supported by 2 Systems in Parallel
Model No.
PNZ-GDS1-7K
Grid / Generator
Voltage
190-280V
Frequency
60±5Hz
Current
Max. 32A
Load
Power
7.0kVA
Frequency
60Hz
Voltage
220/240V (Configurable)
Overload Cap.
120% >3s, 150% >0.15s
Battery
Module Spec
102.4V/54Ah
Module Quantity
4
5

7
Nominal Voltage
204.8V
256.0V
Rated Energy
(100%DoD)*1
22.1kWh
27.6kWh
Solar
Input Voltage
380-1000V
Input Power
Max. 15kW
MPPT Channels
2
Output Current
Max. 20A / 20A
MPPT Voltage
410-800V
Vmpp of String*2
475-800V
590-800V
General Specification
Dimension
H*W*D: 1610*570*510mm / 63.4*22.4*20.1in
Weight*3
Max. 360kg / 794lbs
Operating
Environment
Temperature: 41-104°F/5-40°C
Humidity: 10%-90% (No Condensation)
Split Phase
Supported by Autotransformer
NOTE:
1. The actual battery DoD (Depth of Discharge) is at 80%.
2. It is recommended Vmpp@NOCT(Nominal Operating Cell Temperature)of
solar panel string should be within this range. Refer to solar panel datasheet
for the value of Vmpp at NOCT condition.
3. Slight weight deviation for each device.
4.3 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.

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(1) Top-level
Figure 4.3.1: NetZero Front View
Table 4.3.1: Top-level Parts
No.
Parts
Functions
1
Rack System
Mechanical support. Including the Air
Deflector, Cable Bracket and Cover Plate
2
EMS Module
Manage the whole system
3
PCS Module
Convert the power from AC to DC or from
DC to AC
4
Solar Controller
Track the Max. Power Point of solar power,
charge the battery, power the load
5
BCMS Module
Manage and protect all battery modules
6
Battery Module
Store electric energy
1
2
3
4
5
6

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(2) EMS Module
Figure 4.3.2: EMS Front View
Table 4.3.2: EMS Parts
Parts
Functions
Wi-Fi Antenna
Enhance Wi-Fi signal
NETWORK
RJ45 port, connect to the router/Internet
USB
5V1A power supply
RST
Wi-Fi reset button. Long press this button for 4
seconds to reset Wi-Fi settings
SD
SD card for storage of operation data
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 3minutes, either the network or the
password might be incorrect
Solid white: Connecting to the Internet or
troubles in Internet connection while the router
DC 12V
12 3 4
ON DIP
ADD
NETWORK
USB RST SD
STATUS SOC
RS232
PV
RS485-2
PCS
BCMS
RS485-1
NO1
NC1 COM2
COM1 NO2
NC2
DI1
DI2
COM3 COM4
Wi-Fi Antenna

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connection works properly
Solid green: Internet connected successfully
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:
Blinking indicate system fault as below:
ADD
Reserved
Dry Contact
NC1&COM1: Stop generator
Others: Reserved
PV
Communicate with solar controller
RS232
For the manufacturer’s debugging
PCS
Communicate with PCS module
RS485-2
Reserved, RJ45 port, follow RS485 protocol
RS485-1
For the manufacturer’s debugging
BCMS
Communicate with BCMS module
DC 12V
DC12V power supply input

11
WARNING: The SD card is provided to the device. Removing it will cause the
operation data lost.
(3) PCS Module
Figure 4.3.3: PCS Front View
Table 4.3.3: PCS Parts
Parts
Functions
AC Input /
Output
GRID: Grid input
GEN: Generator input
LOAD: Load output
GND: Power ground
Power Supply
Status
Indicate the power supply status:
On: Normal
Off: No power
MAIN
Load output switch
BAT
Battery bus, connect to Solar Controller
Generator Start
and Stop
START-A&START-B: Start generator
STOP-A&STOP-B: Stop generator
Synchronizing
Signal
Reserved
DC 12V
DC12V power supply output
EMS
Communicate with EMS module
EMS
CAN
MAIN
GND
SYN
START-A START-B STOP-A STOP-B
DC 12V
GRID GEN LOAD
DC 12V
DC 12V
123 4
ON DIP
ADD
STATUS
BAT
AC Input / Output
Power Supply Status

12
CAN
For communication between two NetZero while
paralleling to support split phase
STATUS
Indicate the power status of PCS module:
On: Normal
Off: No power
ADD
The communication address of PCS module
If two NetZero are in parallel, set the ADD
switches accordingly:
#1 PCS: set ADD 1 down, ADD 2,3,4 up
#2 PCS: set ADD 2 down, ADD 1,3,4 up
(4) Solar Controller
Figure 4.3.4: Solar Controller Front View
Table 4.3.4: Solar Controller Parts
Parts
Functions
PV Input
PV1-: Solar power input negative (-) #1
PV1+: Solar power input positive (+) #1
PV2-: Solar power input negative (-) #2
PV2+: Solar power input positive (+) #2
PV SWITCH
Solar power input switch
DC 12V
DC12V power supply output
RS485
Reserved
EMS
Communicate with EMS module
STATUS
Indicate the power status of Solar Controller:
PV SWITCH
ON
OFF
PV1-
PV1+
PV2-
PV2+
RS485
DC 12V DC 12V
1234
ON DIP
ADD
STATUS
EMS
BAT

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On: Normal
Off: No power
ADD
Reserved
BAT
Battery bus, connect to BCMS and PCS module
(5) BCMS Module
Figure 4.3.5: BCMS Front View
Table 4.3.5: BCMS Parts
Parts
Functions
BAT INPUT
Connect to battery
BAT OUTPUT
Connect to Solar Controller
POWER
Power switch.
START
Manually start battery system
RS232
For the manufacturer’s debugging.
RS485-2
Reserved, RJ45 port, follow RS485 protocol.
RESET
Reset BCMS module
RS485-1
Communicate with other BCMS module
EMS
Communicate with EMS module
STATUS
Indicate BCMS module status:
Blinking blue: Boot up in progress
Blinking green: Self-inspecting
Solid green: Working normally
STATUS SOC
EMS
RS485-1
START
RS485-2
RS232 12 3 4
ON DIP
ADD
NO1
COM1
COM2
D11
D12
GC
GC
LINK
RST
DC 12V
NO2
POWER
NDB2-63 NDB2-63 NDB2-63
BAT OUTPUT
BAT INTPUT
WOER
B+
B-

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Solid pink: Alarming
Solid red: In device protection or troubles
SOC
Indicate real time battery capacity: Each light
represents 25% capacity. The lights blink in
sequence under system charging and
discharging.
ADD
Reserved
Dry Contact
Reserved
LINK PORT
Communicate with Battery Module
DC 12V
DC12V power supply input
(6) Battery Module
Figure 4.3.6: Battery Front View (102.4V/54Ah)
Figure 4.3.7: Battery Front View (51.2V/108Ah)
B- B+
LINK PORT0
RS232
STATUS
LINK PORT1
LINK PORT0
RS232
STATUS
LINK PORT1
B- B+
LINK PORT0
RS232
STATUS
LINK PORT1

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Table 4.3.6: Battery Parts
Parts
Functions
B-
Battery module positive (-).
B+
Battery module negative (+).
STATUS
Indicate battery module status:
Blinking yellow: Boot up in progress
Blinking blue: Self-inspecting
Solid green: Working normally
Solid pink: Alarming
Solid red: In device protection or troubles
RS232
For the manufacturer’s debugging
LINK PORT0
Communicate with battery module
LINK PORT1
Communicate with battery or BCMS module
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) 3mm Inner Hexagonal Screw Driver
(3) Wire Cutter
(4) Insulated Gloves
(5) Safety Goggles
(6) Safety Shoes

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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.
Figure 5.2.2: Install the Screws
Beam
4pcs
Left Side Frame
Right Side Frame
Opening Side of the
Beams
Screw M5*10
32pcs

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(3) Put the rack where NetZero will be placed and mount it to the floor 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.
Figure 5.2.3: Place and Mount the Rack
5.3 Install the Modules
(1) Put all the modules into the rack from the front side and then fasten them
with screws. Install the Cover Plate while the quantity of battery module is
less than five.
≥24in/600mm
≥40in/1000mm
≥4in/100mm
≥20in/500mm
Front Side is with Threaded Holes
on the Support Surface
Maintenance Space