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Quick Guide for FlexOM Meter V2
4/19/2023
Revision 4
Page 1
Table of Contents
Safety Precautions
Product Specifications
-- -- Dimensions
-- -- FlexOM Meter V2 Diagram
-- -- Typical System Design and Diagrams
Hardware Installation
-- -- Wall Mounting
-- -- Pole Mounting
-- -- Connecting a 4G Antenna
System Commissioning
-- -- Check the Internet Connection
-- -- Modbus Device Settings
-- -- Reset / Restart
-- -- Tools and Materials
2
4
9
10
11
13
15
17
18
21
22
25
26
13
Electrical Installation
-- -- CT Selection
19
20
Page 2
Safety Precautions
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.
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.
NOTICE
Page 3
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 con-
necting AC power cables, AC current-sensing cables, and communications cables.
Ensure that all electrical connections comply with local electrical standards.
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.
DANGER
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.
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.
Warranty Policy
Page 4
Product Specifications
RS485 Interface
No. of Ports 1 ( B: 5-Pole Terminal Block or A: 6-Pin Connector)
Protocol Modbus RTU
Modbus RTU Mode Client
Terminator for RS485 120 ohms
Isolation 2.5 kV
AUX Interface
No. of Ports 1 (3-pole Terminal Block)
Protocol Modbus RTU
Modbus RTU Mode Server (RS485 Pass-thru)
Terminator for RS485 120 ohms
Isolation 2.5 kV
Digital Inputs
No. of Channels 3 Channels
Connector Screw-fastened Euroblock terminal
Sensor Type Dry Contact
I/O Mode DI or event counter
Dry Contact On: short to GND / Off: open
Page 5
Counter Frequency According to filter
Current Rating 10 mA per channel
Digital Filtering Time Interval Software configurable
Digital Outputs
No. of Channels 2 Channels
Connector Screw-fastened Euroblock terminal
I/O Type Relay
I/O Mode DO
Over-Current Protection 5 A per channel
Over-Voltage Protection 250 VAC / 30 VDC
CAN Interface
Isolation 2 kV (built-in)
No. of Ports 1 (3-pole Terminal Block)
Signals CAN_L, CAN_H, CAN Signal GND
Terminator 120 ohms (configurable)
Analog Inputs
No. of Channels 2 channels
Connector Screw-fastened Euroblock terminal
I/O Mode Current
I/O Type Differential
Page 6
Resolution 16 bits
Input Range
Accuracy ± 0.1% FSR @ 25°C± 0.3% FSR @ -10°C to 60°C
Sampling Rate 12 samples/ sec/ interface ( shared between up to 2 channels )
Built-in Resistor for Current Input 120 ohms
“Connect to CT” Interface
No. of Ports 1 (6-pole Terminal Block)
Connector Screw-fastened Euroblock terminal
Max. Current / Max. Voltage 5A / 30 VDC
“Connect to Meter” Interface
RS485 Interface 1 (6-pole Terminal Block)
4 to 20 mA
SCADA controllers on the same LAN subnet Screw-fastened Euroblock terminal
RS485 Interface 5A / 30 VDC
Ethernet Interface
10/100BaseTX Ports (RJ45 connector) 1
Connect to the Cloud Applications MQTT
SCADA controllers on the same LAN subnet Modbus TCP
Page 7
Modbus TCP
Mode Server
Max. No. of Client Connections 32
Cellular Interface
Cellular Standards LTE-FDD/LTE-TDD, WCDMA
No. of SIM Slot 1
Cellular Antenna Connectors 1 SMA female
WLAN Interface
WLAN Standard 802.11 a/b/g/n
Frequency Band 2.4 GHz
Wireless Security
Antenna External, 2/2 dBi
Antenna Connector 1, SMA female
Bluetooth Interface
BLE 4.2
Standard
Antenna Built-in with WIFI antenna
WEP, WPA/WPA2
Power Parameters
Input Voltage 208 to 600 VAC
AC-DC Power 12 V Output, 40 W
Page 8
Environmental Limits
Operating Temperature -40°C to 60°C (-40 to 140°F), Natural convection
Storage Temperature -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 85% (non-condensing)
Physical Characteristics
Installation Options Wall Mounting, Pole Mounting
IP Rating IP 65
Dimensions 350 mm / 550 mm / 190 mm (13.78 in x 21.65 in x 7.48 in)
Weight 19 kg ( 41.89 lb )
Standards and Certifications (DoC)
CE-EMC EN 55032
EN 55035
EN 61000-3-2
EN 61000-3-3
CE-RED EN 301 908
EN 300 328
EN 301 489-1 / -17 / -52
EN 62368-1
CE-LVD EN 62368-1
FCC SDoC Part 15B
FCC ID Part 15C
Page 9
FlexOM Meter V2 Enclosure Dimensions
13.66 in
(347 mm)
6.77 in
(172 mm)
7.00 in
(178 mm)
23.07 in
(586 mm)
21.62 in
(549 mm)
-- (1) enclosure door latch key
-- (1) flathead screwdriver
-- (2) wrenches (14 mm)
-- (4) Phillips flathead screws (2 in)
-- (4) plastic wall-mount anchors
-- (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
FlexOM Meter V2 Accessory Kit:
Page 10
CT1/A CT2/B CT3/C
123 4 56789 10 11 12 13 14 15
S1 S2 S3 S4 S5 S6
N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12
A
A
B
B
C
C
A
A
B
B
C
C
N13 N14 N15
H
L
G
A+
B-
G
A+
B-
G
N1
N2
N3
N4
N5
N6
2+
2-
1+
1-
3
2
1
C
VIN
GND
Breaker
Power Supply
A+ B- G
VN
VA
VB
VC
Meter
FA1-X
Gateway
S7 S8 S9 S10 S11 S12 S14 S15S13
To 3rd Party Data Logger
(RS485 port)
To Inverter To CAN Bus
RS485 A +
RS485 B -
RS485 GND
T/R +
T/R -
GND
CT 1 / A
CT 1 / A
CT 2 / B
CT 2 / B
CT 3 / C
CT 3 / C
CAN -H
CAN -L
CAN -G
To CTs
RS485
Surge
RS485
Surge
RS485
Surge
Fuse
N L
V + V - LA LB LC
L1 L2 L3
Neutral Line Input
3 Phase Power Input
AB
G
AB
G
AB
G
FlexOM Meter V2 Diagram
Page 11
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-in-
stalled SIM card and requires an Internet connection via the Ethernet port.
Page 12
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: Ethernet (FlexOM MeterV2)
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.
FlexOM Meter V2 Internet Connection
Page 13
Hardware Installation
Tools and Materials
Spring Nut
Recommended installation method
The materials shown in this picture
need to be prepared by the installer.
Half Slot Channel 15/8 X 15/8 in
2 in
3.9 in
Max. 5.9 in
(150 mm)
19.3 in
(490 mm)
Page 14
19.3 in
(490 mm)
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
Page 15
Front U-rail
Chassis Hook
Chassis Hook
HEX Bolts
1/4 in
Spring Nut
1/4 in
7.48 in
(190 mm)
Hardware Installation
Wall Mounting
Page 16
Drilled holes in the wall
Front U-rail
Expansion Screw Sleeve
Self-Tapping Screw
Wrench
Use a wrench to adjust the hook screw to
fasten the chassis to the bracket.
Chassis Hook
Chassis Hook
The back of the chassis hook
Hardware Installation
Wall Mounting on Solid Concrete Walls
Page 17
Long Rod Bolt M8
Nut M8
Front U-rail
Rear U-rail
Chassis Hook
Chassis hanging hole
Hardware Installation
Pole Mounting
Page 18
2a
2b
2c
2d
2e
3
1
POWER ON
Before closing the cover of
inverter wire-box or external
DAS box, check again that the
gateway’s power switch is set
to ON.
Pass the SMA end of the
coaxial antenna cable through
the disassembled cable gland
parts in sequence, then tighten
the cable glands again.
Screw one end of the antenna
cable into the cable connector
of the gateway (applicable to
FlexOM-4G model only).
Screw the N-Type end of the coaxial antenna cable
into the antenna.
Mount the 4G antenna as high
as possible on a metallic
structure.
Hardware Installation
4G Cellular Antenna Installation
(FlexOM-4G V2 only)
-- (1) IP65 4G cellular antenna
-- (1) Antenna coaxial cable (3m)
-- (1) Cable gland
-- (1) Antenna mounting bracket
-- (1) Pre-installed SIM chip
FlexOM-4G Gateway V2 Accessory Kit includes
(in addition to standard accessories):
Page 19
Electrical Installation
CT1/A CT2/B CT3/C
123 4 56789 10 11 12 13 14 15
S1 S2 S3 S4 S5 S6
N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 N14 N15
Breaker
A+ B- G
VN
VA
VB
VC
Meter
S7 S8 S9 S10 S11 S12 S14 S15S13
To 3rd Party Data Logger
(RS485 port)
To Inverter To CAN Bus
RS485 A +
RS485 B -
RS485 GND
T/R +
T/R -
GND
CT 1 / A
CT 1 / A
CT 2 / B
CT 2 / B
CT 3 / C
CT 3 / C
CAN -H
CAN -L
CAN -G
To CTs
RS485
Surge
RS485
Surge
RS485
Surge
Fuse
LA LB LC
L1 L2 L3
Neutral Line Input
3 Phase Power Input
AB
G
AB
G
AB
G
A+ B- G
A+ B- G
Inverter
Data Logger
(Optional)
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.
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