Sungrow COM100A User manual

COM100ACommunication BoxUser
ManualCOM100A-UEN-Ver62-
202305M-H-002269
User Manual
Communication Box
COM100A
COM100A-UEN-Ver62-202305

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Contents
1 About This Manual ...........................................................................................1
1.1 Intended Use..................................................................................................1
1.2 Target Group..................................................................................................1
1.3 How to Use This Manual .................................................................................1
1.4 Symbol Explanation........................................................................................1
2 Product Description ..........................................................................................3
2.1 Function Description .......................................................................................3
2.2 Main Features ................................................................................................3
2.3 Dimensions....................................................................................................4
3 Mechanical Mounting .......................................................................................5
3.1 Inspection before Installation ...........................................................................5
3.2 Location Requirements ...................................................................................5
3.3 Installation Method .........................................................................................6
3.3.1 Bracket Mounting ..................................................................................6
3.3.2 Wall Mounting.......................................................................................7
3.3.3 Ground Mounting ..................................................................................8
3.4 Set Communication Address(optional) .............................................................9
3.5 Installing IO Modules (Optional) .....................................................................10
4 Electrical Connection .....................................................................................12
4.1 Waterproof Terminal Description .................................................................... 12
4.2 Internal Structure..........................................................................................12
4.3 Preparation Before Connection......................................................................13
4.4 Connection Steps .........................................................................................15
4.4.1 Grounding ..........................................................................................15
4.4.2 RS485 Communication Terminal Connection ........................................17
4.4.3 Optical Fibre (Optional)........................................................................18
4.4.4 100ac–277Vac Power Supply Connection.............................................19
4.4.5 PLC Wiring .........................................................................................20
4.4.6 DI/DO Port Connection ........................................................................28
4.5 Post-wiring Processing .................................................................................29
4.6 Communication Methods ..............................................................................29

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5 Commissioning ...............................................................................................30
5.1 Inspection before Commissioning ..................................................................30
5.2 Commissioning Steps ...................................................................................30
6 Troubleshooting ..............................................................................................32
7 Appendix A: Technical Parameters ..............................................................33
8 Appendix B: General Information .................................................................34
8.1 Quality Assurance ........................................................................................34
8.2 Contact Information ......................................................................................34

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1About This Manual
1.1 Intended Use
This manual is intended to provide the reader with detailed information and description of
the installation and operation about the following products:
• COM100A
It is referred to as "device" for short unless otherwise specified。
1.2 Target Group
This manual is intended for technically qualified persons who need to install and operate the
device.
1.3 How to Use This Manual
Read this manual carefully before performing operation on the device. Keep the manual in a
convenient place for future reference.
All rights reserved including the pictures, symbols, and markings used in this manual. Any
disclosure, even partially, of the contents of this manual is strictly prohibited without prior
written authorization of SUNGROW.
The content of the manual will be periodically updated or revised as per the product develop-
ment. It is probably that there are changes in manuals for the subsequent module edition. If
there any mismatch between the product and its manual, the actual product shall govern.
1.4 Symbol Explanation
This manual contains important safety and operational instructions that must be accurately
understood and respected during the installation and maintenance of the device.
To ensure the optimum use of this manual, note the following explanations of the symbols
used.
DANGER indicates a hazard with a high level of risk which, if not avoided, will re-
sult in death or serious injury.

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WARNING indicates a hazard with a medium level of risk which, if not avoided,
could result in death or serious injury
CAUTION indicates a hazard with a low level of risk which, if not avoided, could re-
sult in minor or moderate injury.
NOTICE indicates a situation which, if not avoided, could result in equipment or
property damage.
indicates additional information, emphasized contents or tips to help you solve
problems or save time.
1 About This Manual User Manual

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2Product Description
2.1 Function Description
The system block diagram is shown in the following figure.
2.2 Main Features
Smart and flexible
• Integrating data collector, support of local intelligent commissioning
• Wall mounting available, flexible installation
Simple and efficient
• Seamless connection to iSolarCloud, easy management of PV devices
• Built-in PLC communication, communication and management of string inverters devel-
oped by SUNGROW without cable routing
Safe and reliable
• Equipped with SPD protection, steady and reliable operation
• Ingress of protection IP65, long-term reliable outdoor operation

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2.3 Dimensions
2 Product Description User Manual

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3Mechanical Mounting
3.1 Inspection before Installation
Check the scope of delivery for completeness according to the packing list. The following
items should be included:
Item Description Sum
A COM100A 1
B
Documents, including certificate, warranty
card, delivery inspection report, user man-
ual, etc.
1
CKeys 1
DM10x45 bolt assembly 4
E M6x14 bolt 1
The device is carefully tested and inspected before delivery, but damage may be
caused during shipping. Therefore, inspect the device before installation. If there
any damage, contact the forwarding company or SUNGROW.
3.2 Location Requirements
• With the ingress of protection IP65, COM100A can be installed outdoors.
• Ambient temperature: -30℃to +60℃， and ambient humidity: 5%– 95%。Excessive
moisture can damage internal components.

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• Take anti-moisture and anti-corrosion measures.
3.3 Installation Method
Beware of the weight of the device throughout the installation process!
Tilting or falling of the device due to inappropriate processing can cause personal
injury!
The installation dimensions of mounting ears on the back of the device are shown in the fol-
lowing figure.
3.3.1 Bracket Mounting
step 1 Mark the hole locations on the mounting brackets according to the installation dimensions of
mouting ears and drill holes on the marked locations according to bolt specifications.
step 2 Fasten the device on the brackets in the order of M10x45 bolt, mounting ear, mounting
bracket, and nut with a fastening torque of 37±3N.m.
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step 3 Check to ensure the device is firmly in place.
- - End
3.3.2 Wall Mounting
step 1 Mark the hole locations on the installation wall according to the foregoing installation
dimensions.
step 2 Drill holes on the marked locations.
step 3 Place the M10x80 expansion sleeve(not included in the scope of delivery) into the hole, and
tap it with a rubber hammer. Make it completely embedded in the wall.
User Manual 3 Mechanical Mounting

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The length of the expansion solenoid should be selected reasonably in accord-
ance with the drilling depth.
step 4 Fasten the device on the wall in the order of nut, lock washer, flat washer, mounting ear, and
expansion sleeve with a fastening torque of 37±3N.m.
- - End
3.3.3 Ground Mounting
For the ground mounting, the device is fixed to the foundation via the installation holes in the
bottom of the device (shown in Figure A below).
step 1 Construct the foundation according to the exterior dimensions of the device.
step 2 Pre-embed the foundation bolts in the four corners of the foundation, and the bolts used are
M10.
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step 3 Secure the installation holes in bottom of the device to the foundation with a fastening torque
of 37±3N.m.
- - End
3.4 Set Communication Address(optional)
Take out the IO module, find the dip switch on the back, and set the communication address
through the dip switch. The setting range of the communication address is from 1 to 15.
The DIP switches are from left to right from low position to high position.
Example of communi-
cation address
setting
Binary address Decimal address
0001 1
（1×20=1）
0010
2
（1×21+0×20=2）
User Manual 3 Mechanical Mounting

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Example of communi-
cation address
setting
Binary address Decimal address
0011 3
（1×21+1×20=3）
1111 1x23+1x22+1x21+1x20=15
The dip switch addresses on each IO module must be different.
3.5 Installing IO Modules (Optional)
This operation is required if IO modules are ordered.
step 1 Remove the IO modules and M4 screw assembly from the IO module deliverables.
step 2 After inserting the IO modules into the reserved area, tighten them with M4 screw assembly
with a tightening torque of 1.2N.m.
step 3 All four IO modules should be installed as shown in the following figure.
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- - End
User Manual 3 Mechanical Mounting

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4 Electrical Connection
4.1 Waterproof Terminal Description
Mark Description
ETH1 Waterproof terminals for Ethernet communi-
cation cables
ETH2
RS485 Waterproof terminals for RS485 communica-
tion cables
AI Waterproof terminals for analog input cables
DI Waterproof terminals for dry contact input
cables
PLC Input AC400V/480V/540V/800V Waterproof terminal for PLC communication
cables
Input AC100–277V Waterproof terminal for AC 100–277V power
cables
Optical fiber ports Waterproof terminals for optical fibers
Grounding waterproof terminal
4.2 Internal Structure
The internal structure of COM100A is shown in the following figure.

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Internal components may differ as per selected product module. For details, refer to the
product received.
No. Description Recommended Cable
Specification Source
A* Splice box — —
BRS485 communica-
tion terminal
2 x (0.75~1.5) mm2outdoor ultra-
violet protection STP
Beyond the scope
of delivery
C* IO module 0.75mm2Beyond the scope
of delivery
D Fuse — —
E Circuit breaker 1~1.5 mm2or 15~17AWG outdoor
ultraviolet protection cable
Beyond the scope
of delivery
FGrounding copper
bar 4mm2～10mm2or 7～11AWG Beyond the scope
of delivery
G Power module 1.5mm2or 13AWG Beyond the scope
of delivery
HSurge protective
device — —
I PLC module — —
JLogger3000 — —
K* Switch — —
* is optional.
4.3 Preparation Before Connection
step 1 Open the cabinet. Unlock the door with the specific key, as shown in the following figure.
User Manual 4 Electrical Connection

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step 2 Unclip the top and bottom clips of the cabinet.
step 3 Remove the protective cover inside the cabinet.
step 4 Disconnect the upstream input switch of the device, and turn the power switch inside the de-
vice to the "OFF" position to ensure the device is voltage-free.
step 5 Disconnect the switch of the transformer side.
- - End
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4.4 Connection Steps
4.4.1 Grounding
Safety Instructions
The grounding cable must be grounded reliably! Otherwise,
• Lethal electrical shock can be caused when fault occurs!
• The device may be damaged by lightening!
Brief Introduction
The device is designed with two grounding terminals: grounding copper bar inside the cabi-
net and external PE point.
On site, connect both grounding terminals reliably.
Preparation before Installation
• Prepare the grounding cable.
• Strip the cable and crimp the OT terminal, and then use heat shrink tubing to tighten the
cable and the OT terminal.
4.4.1.1 Copper Bar Grounding
Position Description
The grounding copper bar is located inside the cabinet, as shown in the figure below.
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Wiring Steps
step 1 Unscrew the waterproof terminal “ ” at the bottom of the device.
step 2 Connect the yellow-green grounding cable led from outside to the grounding copper bar in-
side the device through the internal waterproof terminal “ ”.
No. Definition
A M6x12 bolt(Beyond the scope of delivery)
B OT terminal
C Grounding hole
step 3 Secure the cable with M6x12 bolt with a fastening torque of 7.5±0.5N·m.
step 4 Screw the waterproof terminal at the bottom of the device.
- - End
4.4.1.2 PE Point Grounding
Position Description
The external PE point of the device is shown by A in the figure below.
4 Electrical Connection User Manual