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Quick Guide for FlexOM Meter V2
4/19/2023
Revision 4
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Table of Contents
Safety Precautions
Product Specifications
-- -- Dimensions
-- -- FlexOM Meter V2 Diagram
-- -- Typical System Design and Diagrams
Hardware Installation
-- -- Tools and Materials
-- -- Wall Mounting
2
4
9
10
11
13
13
15
-- -- Pole Mounting
-- -- Connecting a 4G Antenna
Electrical Installation
-- -- CT Selection
System Commissioning
-- -- Check the Internet Connection
-- -- Modbus Device Settings
-- -- Reset / Restart
17
18
19
20
21
22
25
26
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Safety Precautions
NOTICE
Before performing operations, read through this manual and follow all the precautions
included to prevent accidents. The safety precautions provided in this document do not
cover all possible safety precautions. CPS shall not be liable for any consequence caused by
the violation of the safety operation regulations and design, production, and usage
standards.
Declaration
CPS shall not be liable for any consequence caused by any of the following events.
Transportation
The storage conditions do not meet the requirements specified in this document.
Violation of the operation instructions and safety precautions in this document for
installation, cable connecting, and maintenance.
Operation in extreme environments which are not covered in this document.
Unauthorized modifications to the product or software code.
Installation or use in environments which are not specified in related international
standards.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
Personnel Requirements
Only qualified electrical technicians are allowed to install and operate the FlexOM
Meter V2.
Operation personnel should receive professional training.
Operation personnel should read through this document and follow all the
precautions.
Operation personnel should be familiar with the safety specifications about the
electrical system.
Operation personnel should understand the composition and working principles of
the grid-tied PV power system and local regulations.
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Installation
Ensure that the FlexOM Meter V2 is not connected to a power supply and is not
powered on before starting installation.
Ensure that the FlexOM Meter V2 is installed in a well ventilated environment.
Do not perform any operation on other components inside the chassis except connecting AC power cables, AC current-sensing cables, and communications cables.
Ensure that all electrical connections comply with local electrical standards.
DANGER
High voltage may cause electric shock and serious injuries during FlexOM Meter V2
operation.
Do not touch components such as AC cables, circuit breakers and connectors while the
FlexOM Meter V2 is energized.
Maintain the FlexOM Meter V2 with sufficient knowledge of this document and
proper tools and testing equipment.
Before performing maintenance tasks, power off the FlexOM Meter V2 and perform
lockout/tagout (LOTO) of the source circuit.
For personal safety, wear personal protective equipment (PPE), including insulated
gloves and eye protection.
Warranty Policy
The warranty policy of this product is specified in the contract; otherwise, the
standard warranty is 2 years.
For service, Chint Power Systems America will provide local support.
For warranty terms, please refer to the CPS America accessories warranty
policy in place at time of purchase.
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Product Specifications
RS485 Interface
No. of Ports
Protocol
Modbus RTU Mode
Terminator for RS485
Isolation
AUX Interface
No. of Ports
Protocol
Modbus RTU Mode
1 ( B: 5-Pole Terminal Block or A: 6-Pin Connector)
Modbus RTU
Client
120 ohms
2.5 kV
1 (3-pole Terminal Block)
Modbus RTU
Server (RS485 Pass-thru)
Terminator for RS485
Isolation
Digital Inputs
No. of Channels
Connector
Sensor Type
I/O Mode
Dry Contact
120 ohms
2.5 kV
3 Channels
Screw-fastened Euroblock terminal
Dry Contact
DI or event counter
On: short to GND / Off: open
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Counter Frequency
According to filter
Current Rating
Digital Filtering Time Interval
Digital Outputs
No. of Channels
Connector
I/O Type
I/O Mode
Over-Current Protection
Over-Voltage Protection
10 mA per channel
Software configurable
2 Channels
Screw-fastened Euroblock terminal
Relay
DO
5 A per channel
250 VAC / 30 VDC
CAN Interface
Isolation
No. of Ports
Signals
Terminator
Analog Inputs
No. of Channels
Connector
I/O Mode
2 kV (built-in)
1 (3-pole Terminal Block)
CAN_L, CAN_H, CAN Signal GND
120 ohms (configurable)
2 channels
Screw-fastened Euroblock terminal
Current
I/O Type
Differential
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Resolution
16 bits
Input Range
Accuracy
Sampling Rate
Built-in Resistor for Current Input
“Connect to CT” Interface
No. of Ports
Connector
Max. Current / Max. Voltage
“Connect to Meter” Interface
4 to 20 mA
± 0.1% FSR @ 25°C / ± 0.3% FSR @ -10°C to 60°C
12 samples/ sec/ interface ( shared between up to 2 channels )
120 ohms
1 (6-pole Terminal Block)
Screw-fastened Euroblock terminal
5A / 30 VDC
RS485 Interface
SCADA controllers on the same LAN subnet
RS485 Interface
Ethernet Interface
10/100BaseTX Ports (RJ45 connector)
Connect to the Cloud Applications
SCADA controllers on the same LAN subnet
1 (6-pole Terminal Block)
Screw-fastened Euroblock terminal
5A / 30 VDC
1
MQTT
Modbus TCP
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Modbus TCP
Mode
Max. No. of Client Connections
Cellular Interface
Cellular Standards
No. of SIM Slot
Cellular Antenna Connectors
WLAN Interface
WLAN Standard
Frequency Band
Server
32
LTE-FDD/LTE-TDD, WCDMA
1
1 SMA female
802.11 a/b/g/n
2.4 GHz
Wireless Security
Antenna
Antenna Connector
Bluetooth Interface
Standard
Antenna
Power Parameters
Input Voltage
AC-DC Power
WEP, WPA/WPA2
External, 2/2 dBi
1, SMA female
BLE 4.2
Built-in with WIFI antenna
208 to 600 VAC
12 V Output, 40 W
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Environmental Limits
Operating Temperature
Storage Temperature
Ambient Relative Humidity
Physical Characteristics
Installation Options
IP Rating
Dimensions
Weight
Standards and Certifications (DoC)
-40°C to 60°C (-40 to 140°F), Natural convection
-40 to 85°C (-40 to 185°F)
5 to 85% (non-condensing)
Wall Mounting, Pole Mounting
IP 65
350 mm / 550 mm / 190 mm (13.78 in x 21.65 in x 7.48 in)
19 kg ( 41.89 lb )
CE-EMC
CE-RED
CE-LVD
EN 55032
EN 55035
EN 61000-3-2
EN 61000-3-3
EN 301 908
EN 300 328
EN 301 489-1 / -17 / -52
EN 62368-1
EN 62368-1
FCC SDoC
FCC ID
Part 15B
Part 15C
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FlexOM Meter V2 Enclosure Dimensions
13.66 in
(347 mm)
FlexOM Meter V2 Accessory Kit:
-- (1) enclosure door latch key
-- (1) flathead screwdriver
-- (2) wrenches (14 mm)
-- (4) Phillips flathead screws (2 in)
-- (4) plastic wall-mount anchors
7.00 in
(178 mm)
-- (2) column-mount brackets
-- (4) M8 x 1.25 x 200 mm bolts
-- (4) M8 x 1.25 x 15 mm bolts
-- (4) M8 x 1.25 nuts
-- (4) M8 lock washers
-- (1) 1A fast-acting fuse
6.77 in
(172 mm)
21.62 in
(549 mm)
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23.07 in
(586 mm)
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FlexOM Meter V2 Diagram
2+
2-
FA1-X
Gateway
VIN
GND
1+
1-
H
L
G
A
A
B
B
C
C
A
A
B
B
C
C
A+
B-
G
A+
B-
G
N1
N2
N3
V + V -
N4
N5
N6
3
Power Supply
N L
3 Phase Power Input
Neutral Line Input
LA LB
L1 L2
LC
Breaker
L3
2
1
C
N1 N2
To 3rd Party Data Logger
(RS485 port)
N3
N4 N5
1
S1 S2 S3 S4 S5 S6
RS485 A +
3 4
2
RS485 B -
RS485 GND
T/R +
N6
5
To Inverter
T/R -
N7 N8
6
GND
N9
N10
N11 N12
To CTs
11
CT 2 / B
CT 3 / C
7
S7 S8 S9 S10 S11 S12 S14 S15S13
CT 1 / A
9 10
8
CT 1 / A
CT 2 / B
N13
N14 N15
12
14
13
To CAN Bus
CAN -H
CT 3 / C
CAN -L
A+ B-
CT1/A CT2/B CT3/C
15
G
CAN -G
RS485
Surge
A
G
Meter
RS485
RS485
Surge
Surge
A
B
A
B
B
G
G
Fuse
VN
VA
VB
VC
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Typical System Design and Diagrams
The FlexOM Meter V2 can be connected to an oprtional third-party datalogger/controller
(supplied by others) by connecting an RS485 cable to the AUX port to enable the equivalent of a
direct transmission connection with the daisy chain.
The gateway within the FlexOM Meter V2 can be used as a Modbus/TCP server; to connect to
an optional third-party SCADA system (supplied by others); and to forward various commands
to the daisy chain.
The gateway within the FlexOM Meter V2 allows users to connect different CPS inverter models
and third-party weather sensors (supplied by others) in the same daisy chain via RS485. The
connected hardware must use Modbus RTU protocol at 9600 baud to be compatible with the
CPS portal. Please check with CPS America regarding hardware compatibility prior to
installation and commissioning. CPS hotline (choose option #2): +1 855-584-7168
The FlexOM Meter V2 models must have an Internet connection to enable remote data
communications with the CPS Portal. The FlexOM-4G Meter V2 includes a pre-installed SIM
card and a 5-year 4G cellular plan. The standard FlexOM Meter V2 does not include a pre-installed SIM card and requires an Internet connection via the Ethernet port.
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FlexOM Meter V2 Internet Connection
Internet interface: Ethernet (FlexOM MeterV2)
The CPS FA1-X Gateway--included as part of the FlexOM Meter V2
assembly--requires a connection to the Internet using Ethernet. Any LAN
firewall ports must be opened before commissioning the FlexOM Meter
V2.
The following ports must be opened both ways (for incoming and
outgoing communications):
TCP 1884 with destination IP 47.254.52.209
(mqtt.chintpowersystems.com)
Internet interface: 4G (FlexOM-4G Meter V2 only)
The CPS FA1-X Gateway--included as part of the FlexOM-4G Meter V2
assembly--includes a pre-installed SIM card and is compatible with AT&T,
T-mobile, and Verizon networks. The standard 4G cellular data plan period
is 5 years.
After the gateway is powered on, it will automatically select and connect
to the provider network with the strongest or most stable signal.
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Hardware Installation
Tools and Materials
Spring Nut
Max. 5.9 in
(150 mm)
Half Slot Channel 15/8 X 15/8 in
2 in
3.9 in
Recommended installation method.
The materials shown in this picture
need to be prepared by the installer.
19.3 in
(490 mm)
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7.48 in
(190 mm)
The hole for fixing the mounting bracket is not
in the same position as the stud where the
chassis is hung on the mounting bracket
19.3 in
(490 mm)
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Hardware Installation
Wall Mounting
Chassis Hook
HEX Bolts
1/4 in
Front U-rail
7.48 in
(190 mm)
Spring Nut
1/4 in
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Chassis Hook
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Hardware Installation
Wall Mounting on Solid Concrete Walls
Drilled holes in the wall
Expansion Screw Sleeve
Front U-rail
Chassis Hook
Self-Tapping Screw
Wrench
Chassis Hook
Use a wrench to adjust the hook screw to
fasten the chassis to the bracket.
The back of the chassis hook
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Hardware Installation
Pole Mounting
Front U-rail
Chassis Hook
Long Rod Bolt M8
Chassis hanging hole
Nut M8
Rear U-rail
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Hardware Installation
4G Cellular Antenna Installation
(FlexOM-4G V2 only)
Screw one end of the antenna
cable into the cable connector
of the gateway (applicable to
FlexOM-4G model only).
Pass the SMA end of the
coaxial antenna cable through
the disassembled cable gland
Before closing the cover of
inverter wire-box or external
DAS box, check again that the
gateway’s power switch is set
to ON.
POWER ON
3
2e
2d
parts in sequence, then tighten
the cable glands again.
Mount the 4G antenna as high
as possible on a metallic
structure.
2c
2b
2a
FlexOM-4G Gateway V2 Accessory Kit includes
(in addition to standard accessories):
-- (1) IP65 4G cellular antenna
-- (1) Antenna coaxial cable (3m)
-- (1) Cable gland
-- (1) Antenna mounting bracket
-- (1) Pre-installed SIM chip
1
Screw the N-Type end of the coaxial antenna cable
into the antenna.
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Electrical Installation
Connect the AC cable to the corresponding position
of the circuit breaker.
Connect the 485 cable of the inverter (daisy chain)
to the 4/5/6 terminal block. FA1-X gateway uses a
two-wire Modbus RS485 multipoint serial line
system. Shielded, twisted pair 22 AWG stranded
cable such as Belden 3106A is recommended for
the daisy chain.
Connect the 485 port of the third-party data logger
to the 1/2/3 terminal block.
Connect the three CTs that match the meter to the
7/8, 9/10, and 11/12 terminals one by one.
N1 N2
To 3rd Party Data Logger
(RS485 port)
N3
N4 N5
1
S1 S2 S3 S4 S5 S6
3 4
2
N6
5
To Inverter
N7 N8
6
N9
N10
N11 N12
7
S7 S8 S9 S10 S11 S12 S14 S15S13
9 10
8
11
To CTs
12
N13
N14 N15
13
To CAN Bus
14
15
RS485
Surge
A
G
3 Phase Power Input
Neutral Line Input
LA LB
LC
Breaker
L1 L2
RS485
RS485
Surge
Surge
A
B
A
B
B
G
G
L3
Fuse
RS485 A +
A+ B-
RS485 B -
RS485 GND
T/R +
GND
T/R -
CT 1 / A
CT 1 / A
CT 2 / B
CT 2 / B
CT 3 / C
G
A+ B-
CAN -H
CT 3 / C
CAN -L
G
A+ B-
CT1/A CT2/B CT3/C
CAN -G
Meter
VN
VA
VB
VC
Inverter
G
Data Logger
(Optional)
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CT Selection
The FlexOM Meter V2 and FlexOM-4G Meter V2 include a WattNode WND-WR-MB meter.
To ensure the correct CTs are selected for the specific project application, the following
guidelines are recommended:
The current transducer/transformers may be purchased either from Continental
Control Systems, LLC or from any other third-party CT vendor.
The CTs must have a 0.333 VAC output--not a mA output.
If the utility requires specific metering accuracy to meet revenue-grade metering
and reporting, then that should be noted and CTs with the correct level of
accuracy must be chosen.
The CT range or full-scale rating should be large enough for the application.
ATCL-1250 Series
CTBL Series
250 - 600 A
800 - 6000 A
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Using the CPS Connect Pro App
Scan the QR code with a mobile phone to complete the CPS
Connect Pro app download and installation.
Or search for “CPS Connect Pro” in the Apple Store (iOS) or
the Google Play Store (Android).
The screenshots shown in the following pages are from the iPhone
version of the CPS Connect Pro app. The Android user interface may look
slightly different but the setup procedure will be the same as shown.
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Check the Internet Connection
NOTE: No WiFi dongle is required to interface or activate the FlexOM Gateway V2.
The Gateway will connect to the Internet via Ethernet or 4G, and the Gateway will
connect to the CPS Connect Pro app via Bluetooth.
Make sure your phone can
connect to the Internet when
you run the app for the first
time. The CPS Connect Pro app
needs to sync important data
from the cloud.
Click "smart link" and the app
will prompt you to obtain some
phone permissions. If there is
no abnormal prompt, click "next"
in the upper-right corner to
proceed.
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During the process of connecting and entering the gateway
configuration interface, the CPS
Connect Pro app will prompt
detailed information in case of
SN barcode
The BLE name includes the SN
The gateway SN is included in the
BLE signal name, and the app will
list the scanned signals. Select the
SN consistent with the target
gateway label and click to enter.
any abnormality. This feature
makes it easy for users to
diagnose problems.
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Connecting the gateway to
the Internet is the most
important step.
During the activation
process, once the gateway
is powered on it will
attempt to connect to the
Internet via 4G by default.
If this attempt fails, it will
automatically attempt to
connect via Ethernet.
The gateway may also be
manually configured to
connect via Ethernet. To
switch from a 4G to an
Ethernet connection, click
on "Internet Settings" and
select "Ethernet.”
Enter the correct
Ethernet IP information and
click “Save” in the upper
right corner.
If the Status is displayed as
“Online” the gateway is
connected to the target
server.
When the gateway status
becomes “Online” the
gateway will automatically
create related objects on
the portal, and the
administrator can remotely
set the required
parameters.
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Modbus Device Settings
The gateway is
configured with a default
modbus ID range.
Click "Scan Daisy Chain"
and the gateway will
scan the daisy chain.
After scanning, a device
list will appear with the
default ID.
The user can either
rescan the target IDs
individually in the list, or
scan the daisy chain in
full.
By clicking “Modbus ID
Range” the user can
manually edit the
modbus ID range.
The existing modbus ID
must be deleted by
clicking the minus-sign
button before a new ID
can be assigned.
A unique Modbus ID
must be assigned to
each inverter.
Once all Modbus
devices have been found
and identified, click
“Save” in the upper right
corner.
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Completing Installation
After configuring Modbus settings, the site name,
gateway name, country, and time zone may all be
specified within the CPS Connect Pro app.
To finalize all settings and complete installation,
click “Next.” A new window with the message
“Installation Success” will appear.
Once the FlexOM Gateway V2 or FlexOM-4G Gate-
way V2 is installed and activated, it is recommended
to contact the CPS Hotline to request confirmation
that the gateway and attached RTU devices are
populated in the CPS Monitoring Portal.
CPS Hotline (choose option #2): +1 855-584-7168
Reset / Restart
To restart or reset the FlexOM Gateway V2 and clear
all current setting parameters, select “More..” from
the main menu. The Settings menu shown on the
left will appear.
Clicking "Reset" will clear all the current FlexOM
Gateway V2 setting parameters and restore the
factory settings.
Clicking "Reboot", will automatically power off and
restart the FlexOM Gateway V2 without changing
the current setting parameters.
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Service Hotline: 855-584-7168
CHINT POWER SYSTEMS AMERICA CO., LTD.
Email: AmericaSales@chintpower.com
Website: www.chintpowersystems.com
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