Growatt TPM-CT-E-US User manual

Grid
L1
L2
L3
N
SDM630MCT ETL is a multi-functional din-rail meter designed for accurate measurement and display of parameters in 3P3W/3P4W power
grid systems, such as voltage, current, power, frequency, active power, reactive power, positive energy, reverse energy, total harmonics,
etc. It is an ideal choice for real-time power monitoring, featuring a wide range of functions and applications with high stability over
extended service life. The meter works with an external current transformer and can be applied in both high and low voltage power grid. It
comes with an RS485 communication interface, which supports a maximum baud rate of 38400 bps and enables remote communication.
TPM-CT-E-US (SDM630MCT ETL) Three-phase
Smart Meter Quick Guide
General Specifications
Rated voltage
3×277/480Vac
Rated frequency
50/60Hz
L-N voltage range
100 ~ 277Vac
L-L voltage range
100 ~ 480Vac
Auxiliary power voltage range
100 -277V
AC withstand voltage
4KV for 1min
Input current range
1A or 5A
Short-term overcurrent
20*IMAX for 0.5s
Max. Reading
9999999.9kWh/kVArh
Accuracy
Active power
1% of range maximum
Reactive power
±1% of range maximum
Environment
Regulated working temperature
range
-25℃～+55℃
Limited working temperature range
-40℃～+70℃
Relative humidity annual average
≤90％
Installation category
CAT III
Degree of pollution
RoHS compliant
Communication
Communication
RS485 output for Modbus RTU
Baud rate
9600bps (default)
Pulse
3200imp/kWh
Mechanics
Outline dimensions
3.72x2.83x2.56inch (LxWxH )
Din rail dimensions
DIN rail 1.38inch
Protection level
IP51 (indoor)
Item
Quantity
Description
A
1
Three-phase meter
B
1
Quick Installation Guide
C
1
RS485 cable (standard length: 15m)
D
3
Current Transformer
There are four touch buttons on the panel, arranged from top to bottom as follows: “ESC(←)V/A”, “↑(Alt)MD/PH/HZ”, “↓(Shift)P”,
“ENTER(→)E”. These buttons can be operated in two ways: long press (pressing for more than two seconds) and short press (pressing for
less than one second).
NO.
Button
Features
Viewable content(short press)
1
Short press:
display voltage and current, ←
Long press: ESC
Phase voltage,Line voltage, Phase current, Neutral
current, Voltage harmonics, Current harmonics
2
Short press: display power factor and
frequency, ↑
Long press: Alt
Phase(Total) frequency, Total power factor, Phase(Total)
maximum current demand
3
Short press: display power, ↓
Long press: Shift
Phase(Total) active power, Phase(Total) reactive power,
Phase(Total) apparent power
4
Short press:
display electric energy, →
Long press: Enter
Total active electric energy, Total reactive electric energy,
Positive active electric energy, Reverse active electric
energy, Positive reactive electric energy, Reverse
reactive electric energy
ESC
1.
Overview
2.
Technical Parameters
3.
Unpacking
Quick
installation
manual
A B C D
4.
Dimensions (Unit: inch)
5.
Installation
1. The Growatt Storage Inverter and the Hybrid Inverter are hereinafter referred to as "the Storage/Hybrid Inverter".
2. The grid is on the right side and the current flows from P1 to P2 (from the grid to the load).
Note:
Storage/
Hybrid
Inverter Grid
L1
L2
L3
N
12 3 45678
9 10 11 12 13 14 15 16 17 18 19 20
LNLN
Voltage inputs
So Current inputs
RS485
RS485-A
RS485-B
S2 S1 S2 S1
3P3W
PE
12 3 45678
9 10 11 12 13 14 15 16 17 18 19 20
LNLN
Voltage inputs
So Current inputs RS485
RS485-A
RS485-B
S2 S1 S2 S1 S2 S1
3P4W
PE
Storage/
Hybrid
Inverter
A. Voltage sampling and power supply wiring
3P3W:
Wiring of the L1 voltage sampling line: corresponding to meter Pin 4
Wiring of the L2 voltage sampling line: corresponding to meter Pin 1
Wiring of the L3 voltage sampling line: corresponding to meter Pin 2
3P4W:
Wiring of the L1 voltage sampling line: corresponding to meter Pin 4
Wiring of the L2 voltage sampling line: corresponding to meter Pin 3
Wiring of the L3 voltage sampling line: corresponding to meter Pin 2
Wiring of the N voltage sampling line: corresponding to meter Pin 1
B. Current transformer wiring
Please refer to the diagram above. The grid is on the right and the
current flows from K to T (from the grid to the load).
Wiring of the L1 CT: S1 Line corresponding to meter Pin 16, S2 Line
corresponding to meter Pin 15
Wiring of the L3 CT: S1 Line corresponding to meter Pin 20, S2 Line
corresponding to meter Pin 19
Wiring of the L1 CT: S1 Line corresponding to meter Pin 16, S2 Line
corresponding to meter Pin 15
Wiring of the L2 CT: S1 Line corresponding to meter Pin 18, S2 Line
corresponding to meter Pin 17
Wiring of the L3 CT: S1 Line corresponding to meter Pin 20, S2 Line
corresponding to meter Pin 19
C.RS485 cable wiring
Connect the RS485A to Pin 14 and RS485B to Pin 13 (The network cables delivered with the inverter are labeled as 485-A and 485-B; if
you are using the cables purchased yourself, make sure to differentiate between 485-A and 485-B.)
D. Connecting the meter to the Growatt Three-phase
Storage/Hybrid Inverter E. When connecting the smart meter to the inverter, connect one
end of the cable to Terminal 13 (485B) and Terminal 14 (485A) of
the smart meter and the other end to Pin 6 (485A) and Pin 7 (485B)
of the COM1 port.
Note: In most cases, the red cable is used for 485A and the black
cable for 485B.
G. The standard RS485 cable length is 15m. If a longer RS485
cable is required, please use an intact cable and make sure the
RS485 cable is less than 100m (the recommended length is less
than 25m).
F. Dismantle the 16-pin connector delivered with the inverter and
set aside the water-proof plug. Route the cables through each part
sequentially, then connect them to Pin 6 and Pin 7. Finally, connect
the connector to the COM1 port of the inverter.
6.
Button Description and Display
1.38
1.38
3.72
2.83
2.56
Red(485A)---COM1(6)
Black(485B)---COM1(7)
COM1
P2 P1 P2 P1
COM1(6、7)

Grid
L1
L2
L3
N
SDM630MCT ETL is a multi-functional din-rail meter designed for accurate measurement and display of parameters in 3P3W/3P4W power
grid systems, such as voltage, current, power, frequency, active power, reactive power, positive energy, reverse energy, total harmonics,
etc. It is an ideal choice for real-time power monitoring, featuring a wide range of functions and applications with high stability over
extended service life. The meter works with an external current transformer and can be applied in both high and low voltage power grid. It
comes with an RS485 communication interface, which supports a maximum baud rate of 38400 bps and enables remote communication.
TPM-CT-E-US (SDM630MCT ETL) Three-phase
Smart Meter Quick Guide
General Specifications
Rated voltage
3×277/480Vac
Rated frequency
50/60Hz
L-N voltage range
100 ~ 277Vac
L-L voltage range
100 ~ 480Vac
Auxiliary power voltage range
100 -277V
AC withstand voltage
4KV for 1min
Input current range
1A or 5A
Short-term overcurrent
20*IMAX for 0.5s
Max. Reading
9999999.9kWh/kVArh
Accuracy
Active power
1% of range maximum
Reactive power
±1% of range maximum
Environment
Regulated working temperature
range
-25℃～+55℃
Limited working temperature range
-40℃～+70℃
Relative humidity annual average
≤90％
Installation category
CAT III
Degree of pollution
RoHS compliant
Communication
Communication
RS485 output for Modbus RTU
Baud rate
9600bps (default)
Pulse
3200imp/kWh
Mechanics
Outline dimensions
3.72x2.83x2.56inch (LxWxH )
Din rail dimensions
DIN rail 1.38inch
Protection level
IP51 (indoor)
Item
Quantity
Description
A
1
Three-phase meter
B
1
Quick Installation Guide
C
1
RS485 cable (standard length: 15m)
D
3
Current Transformer
There are four touch buttons on the panel, arranged from top to bottom as follows: “ESC(←)V/A”, “↑(Alt)MD/PH/HZ”, “↓(Shift)P”,
“ENTER(→)E”. These buttons can be operated in two ways: long press (pressing for more than two seconds) and short press (pressing for
less than one second).
NO.
Button
Features
Viewable content(short press)
1
Short press:
display voltage and current, ←
Long press: ESC
Phase voltage,Line voltage, Phase current, Neutral
current, Voltage harmonics, Current harmonics
2
Short press: display power factor and
frequency, ↑
Long press: Alt
Phase(Total) frequency, Total power factor, Phase(Total)
maximum current demand
3
Short press: display power, ↓
Long press: Shift
Phase(Total) active power, Phase(Total) reactive power,
Phase(Total) apparent power
4
Short press:
display electric energy, →
Long press: Enter
Total active electric energy, Total reactive electric energy,
Positive active electric energy, Reverse active electric
energy, Positive reactive electric energy, Reverse
reactive electric energy
ESC
1.
Overview
2.
Technical Parameters
3.
Unpacking
Quick
installation
manual
A B C D
4.
Dimensions (Unit: inch)
5.
Installation
1. The Growatt Storage Inverter and the Hybrid Inverter are hereinafter referred to as "the Storage/Hybrid Inverter".
2. The grid is on the right side and the current flows from P1 to P2 (from the grid to the load).
Note:
Storage/
Hybrid
Inverter Grid
L1
L2
L3
N
12 3 45678
9 10 11 12 13 14 15 16 17 18 19 20
LNLN
Voltage inputs
So Current inputs
RS485
RS485-A
RS485-B
S2 S1 S2 S1
3P3W
PE
12 3 45678
9 10 11 12 13 14 15 16 17 18 19 20
LNLN
Voltage inputs
So Current inputs RS485
RS485-A
RS485-B
S2 S1 S2 S1 S2 S1
3P4W
PE
Storage/
Hybrid
Inverter
A. Voltage sampling and power supply wiring
3P3W:
Wiring of the L1 voltage sampling line: corresponding to meter Pin 4
Wiring of the L2 voltage sampling line: corresponding to meter Pin 1
Wiring of the L3 voltage sampling line: corresponding to meter Pin 2
3P4W:
Wiring of the L1 voltage sampling line: corresponding to meter Pin 4
Wiring of the L2 voltage sampling line: corresponding to meter Pin 3
Wiring of the L3 voltage sampling line: corresponding to meter Pin 2
Wiring of the N voltage sampling line: corresponding to meter Pin 1
B. Current transformer wiring
Please refer to the diagram above. The grid is on the right and the
current flows from K to T (from the grid to the load).
Wiring of the L1 CT: S1 Line corresponding to meter Pin 16, S2 Line
corresponding to meter Pin 15
Wiring of the L3 CT: S1 Line corresponding to meter Pin 20, S2 Line
corresponding to meter Pin 19
Wiring of the L1 CT: S1 Line corresponding to meter Pin 16, S2 Line
corresponding to meter Pin 15
Wiring of the L2 CT: S1 Line corresponding to meter Pin 18, S2 Line
corresponding to meter Pin 17
Wiring of the L3 CT: S1 Line corresponding to meter Pin 20, S2 Line
corresponding to meter Pin 19
C.RS485 cable wiring
Connect the RS485A to Pin 14 and RS485B to Pin 13 (The network cables delivered with the inverter are labeled as 485-A and 485-B; if
you are using the cables purchased yourself, make sure to differentiate between 485-A and 485-B.)
D. Connecting the meter to the Growatt Three-phase
Storage/Hybrid Inverter E. When connecting the smart meter to the inverter, connect one
end of the cable to Terminal 13 (485B) and Terminal 14 (485A) of
the smart meter and the other end to Pin 6 (485A) and Pin 7 (485B)
of the COM1 port.
Note: In most cases, the red cable is used for 485A and the black
cable for 485B.
G. The standard RS485 cable length is 15m. If a longer RS485
cable is required, please use an intact cable and make sure the
RS485 cable is less than 100m (the recommended length is less
than 25m).
F. Dismantle the 16-pin connector delivered with the inverter and
set aside the water-proof plug. Route the cables through each part
sequentially, then connect them to Pin 6 and Pin 7. Finally, connect
the connector to the COM1 port of the inverter.
6.
Button Description and Display
1.38
1.38
3.72
2.83
2.56
Red(485A)---COM1(6)
Black(485B)---COM1(7)
COM1
P2 P1 P2 P1
COM1(6、7)

The complete system wiring diagram is shown as follows. In case that the meter is not operating normally, you can refer to it to check the
wiring. Connect the meter to the RS485 port of the inverter. The following takes the WIT as an example.
The default communication address for the meter and the Growatt Three-phase Storage/Hybrid inverter is 02, the default baud rate is
9600 and the current ratios are 250A/5A, 600A/5A, 1200A/5A, which are determined by the CT that is connected. If the communication
between the meter and the inverter is not established, please check if the communication address and the baud rate are correctly set.
Long press to access the settings menu (the password is 1000 by default, then use and to navigate to the desired
page. If the page flashes, it indicates that you can configure the parameter using the and buttons; if not, press to
enter the selection routine. Then long press to confirm your setting and press to exit.
The meter can be connected to the Growatt Three-phase Storage/Hybrid Inverter in two ways and can be set as 3P3W or 3P4W
before operating.
Note:
7.
Troubleshooting
Fault phenomenon
Reason analysis
Solution
Metering inaccuracy
1. Wiring error, check whether the corresponding phase
sequence of voltage and current is correct.
2. Check if the output line of the current transformer is
reversely connected.
3. The transformer ratio is not set, and the meter
displays the secondary data.
1. Refer to the wiring diagram to check the wiring.
2. If the transformer ratio setting is wrong, please
set the voltage ratio and current ratio correctly.
3. If the issue still exists, please contact your local
supplier.
RS485 communication
error (Inverter error 401)
1. The RS485 communication cable is disconnected,
short circuit or reversely connected.
2. The address, baud rate, data bit and parity bit of the
meter are not in accordance with the inverter .
1. If there is a problem with the communication
cable, please replace the communication cable.
2. Set the address, baud rate, data bit and parity bit
of the meter through buttons.
3. If the issue still exists, please contact your local
supplier.
GR-UM-331-A-00
Download
Manual
3.5.6 Communication module installation
8.
Service and contact
Storage/Hybrid Inverter
COM1
L LN N
6
7
GRID
LOAD
P1:Grid
side
P2:PCS
side
Grid-T
Grid-S
Grid-R
Secondary load
Primary load
Grid-PE
AC
Breaker
Load
Breaker
Load-PE
Main
Breaker Grid-T
Grid-S
Grid-R
Load-R
Load-S
Load-T
RS485-B
RS485-A
EARTH
S1
S1
S2
S2
N line needs to be connected
to N line of the power grid
Power cable
sample cable
communication cable
Storage/Hybrid Inverter
COM1
L LN N
6
7
GRID
LOAD
Grid-T
Grid-S
Grid-R
Grid-N
Secondary load
Primary load
Grid-PE
AC
Breaker
Load
Breaker
Load-PE
Main
Breaker Grid-T
Grid-R
Grid-N
Load-R
Load-S
Load-T
Load-N
RS485-B
EARTH
S1
S1
S1
S2
S2
S2
Power cable
sample cable
communication cable
P1:Grid
side
P2:PCS
side
Grid-S
Power on
Measure
display
Long Press Short Press Long Press
Enter into the
setting interface
Default password
is 1000
Short Press
Press and to adjust the value.
Then Long Press to confirm the settings
Setting examples of current ratio
You can choose
1A or 5A
The value can be
adjusted to 250,600 or
1200 according to the
CT range
Short Press
A
A
When the transformation ratio is
set to 100 and the secondary
current is 5A, the primary current
would be 5A¡Á100=500A.
Grid system type Settings
Enter into the
setting interface
Default password
is 1000
Press and to adjust the value
Power on
Measure
display
Long Press Short Press Long Press
Short Press
It can be 3P4W,
3P3W, or 1P2W
The current page
displays 3P3W
Short Press
Then Long Press to confirm the settings
Growatt USA, Inc.
9227 Reseda Blvd, #435 Northridge, CA 91324, USA.
[phone]
us.growatt.com
T
E [e-mail]
W

The complete system wiring diagram is shown as follows. In case that the meter is not operating normally, you can refer to it to check the
wiring. Connect the meter to the RS485 port of the inverter. The following takes the WIT as an example.
The default communication address for the meter and the Growatt Three-phase Storage/Hybrid inverter is 02, the default baud rate is
9600 and the current ratios are 250A/5A, 600A/5A, 1200A/5A, which are determined by the CT that is connected. If the communication
between the meter and the inverter is not established, please check if the communication address and the baud rate are correctly set.
Long press to access the settings menu (the password is 1000 by default, then use and to navigate to the desired
page. If the page flashes, it indicates that you can configure the parameter using the and buttons; if not, press to
enter the selection routine. Then long press to confirm your setting and press to exit.
The meter can be connected to the Growatt Three-phase Storage/Hybrid Inverter in two ways and can be set as 3P3W or 3P4W
before operating.
Note:
7.
Troubleshooting
Fault phenomenon
Reason analysis
Solution
Metering inaccuracy
1. Wiring error, check whether the corresponding phase
sequence of voltage and current is correct.
2. Check if the output line of the current transformer is
reversely connected.
3. The transformer ratio is not set, and the meter
displays the secondary data.
1. Refer to the wiring diagram to check the wiring.
2. If the transformer ratio setting is wrong, please
set the voltage ratio and current ratio correctly.
3. If the issue still exists, please contact your local
supplier.
RS485 communication
error (Inverter error 401)
1. The RS485 communication cable is disconnected,
short circuit or reversely connected.
2. The address, baud rate, data bit and parity bit of the
meter are not in accordance with the inverter .
1. If there is a problem with the communication
cable, please replace the communication cable.
2. Set the address, baud rate, data bit and parity bit
of the meter through buttons.
3. If the issue still exists, please contact your local
supplier.
GR-UM-331-A-00
Download
Manual
3.5.6 Communication module installation
8.
Service and contact
Storage/Hybrid Inverter
COM1
L LN N
6
7
GRID
LOAD
P1:Grid
side
P2:PCS
side
Grid-T
Grid-S
Grid-R
Secondary load
Primary load
Grid-PE
AC
Breaker
Load
Breaker
Load-PE
Main
Breaker Grid-T
Grid-S
Grid-R
Load-R
Load-S
Load-T
RS485-B
RS485-A
EARTH
S1
S1
S2
S2
N line needs to be connected
to N line of the power grid
Power cable
sample cable
communication cable
Storage/Hybrid Inverter
COM1
L LN N
6
7
GRID
LOAD
Grid-T
Grid-S
Grid-R
Grid-N
Secondary load
Primary load
Grid-PE
AC
Breaker
Load
Breaker
Load-PE
Main
Breaker Grid-T
Grid-R
Grid-N
Load-R
Load-S
Load-T
Load-N
RS485-B
EARTH
S1
S1
S1
S2
S2
S2
Power cable
sample cable
communication cable
P1:Grid
side
P2:PCS
side
Grid-S
Power on
Measure
display
Long Press Short Press Long Press
Enter into the
setting interface
Default password
is 1000
Short Press
Press and to adjust the value.
Then Long Press to confirm the settings
Setting examples of current ratio
You can choose
1A or 5A
The value can be
adjusted to 250,600 or
1200 according to the
CT range
Short Press
A
A
When the transformation ratio is
set to 100 and the secondary
current is 5A, the primary current
would be 5A¡Á100=500A.
Grid system type Settings
Enter into the
setting interface
Default password
is 1000
Press and to adjust the value
Power on
Measure
display
Long Press Short Press Long Press
Short Press
It can be 3P4W,
3P3W, or 1P2W
The current page
displays 3P3W
Short Press
Then Long Press to confirm the settings
Growatt USA, Inc.
9227 Reseda Blvd, #435 Northridge, CA 91324, USA.
[phone]
us.growatt.com
T
E [e-mail]
W