APsmart RSD-S-PLC Instruction Manual

Installation /User Manual
APsmart Rapid Shutdown System Rev1.0 2023/08/15
© All Rights Reserved
RSD-S-PLC
TRANSMITTER-PLC
TRANSMITTER-PLC OUTDOOR KIT

TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS----------------------------------------------------------------------1
RSD PRODUCTS-----------------------------------------------------------------------------------------------2
TRANSMITTER PRODUCTS----------------------------------------------------------------------------------3
SYSTEM WIRING DIAGRAM---------------------------------------------------------------------------------4
RSD-S-PLC INSTALLATION----------------------------------------------------------------------------------6
TRANSMITTER-PLC INSTALLATION ---------------------------------------------------------------------10
TECHNICAL DATA—RSD-S-PLC----------------------------------------------------------------------------13
TECHNICAL DATA—TRANSMITTER-PLC-----------------------------------------------------------------14
TECHNICAL DATA—TRANSMITTER-PLC-OUTDOOR KIT----------------------------------------------15
ORDERING INFORMATION --------------------------------------------------------------------------------16

User Manual
1
IMPORTANT SAFETY INSTRUCTIONS
This manual contains important instructions to be followed during installation and maintenance of the
APsmart RSD-S-PLC and Transmitter. To reduce the risk of electrical shock and ensure the safe installation
and operation of the APsmart RSD-S-PLC and Transmitter, the following symbols appear throughout this
document to indicate dangerous conditions and important safety instructions.
Safety Instructions
·Do NOT disconnect the PV module from the RSD-S-PLC without first disconnecting the AC power.
·Only qualified professionals should install and/or replace the APsmart RSD-S-PLC.
·Perform all electrical installations in accordance with local codes.
·Before installing or using the RSD-S-PLC, please read all instructions and cautionary markings in the
technical documents.
·Be aware that the body of the operating RSD-S-PLC is a heat sink and can reach high temperature.
To reduce risk of burns, do not touch the body of the RSD-S-PLC.
·Do NOT attempt to repair the RSD-S-PLC. If it fails, contact APsmart Customer Support to obtain an
RMA number and start the replacement process. Damaging or opening the RSD-S-PLC will void the
warranty.
The power supply of the Transmitter-PLC and the inverter MUST be on the same AC branch circuit as the
inverter to meet rapid shutdown requirements.
Qualified personnel:
Person adequately advised or supervised by an electrically skilled person to enable him or her to
perceive risks and to avoid hazards which electricity can create. For the purpose of the safety information
of this manual, a "qualified person" is someone who is familiar with requirements for safety, electrical
systems and EMC and is authorized to energize, ground, and tag equipment, systems, and circuits in
accordance with established safety procedures. The inverter and balance of system may only be
commissioned and operated by qualified personnel.

User Manual
2
RSD PRODUCTS
RSD-S-PLC
·Meets NEC 2017&2020 (690.12) requirements
·Executes rapid shutdown of system when Transmitter-PLC signal is absent
·Meets SunSpec requirements
The RSD-S-PLC meets SunSpec requirements, maintaining normal function by continually receiving a
heartbeat signal from the APsmart Transmitter. The RSD-S-PLC executes rapid system shutdown when
the Transmitter signal is absent. Users can manually execute rapid shutdown using the Transmitter breaker
switch.*(1)(2)
*(1) RSD-S-PLC does not have automatic shutdown function for arc detection. When the system is abnormal,
the transmitter signal is cut off by pulling the gate, which triggers shutdown.
*(2) RSD-S-PLC is designed to reduce the risk of fire suppression but does not solve the risk of a arc fire.

User Manual
3
TRANSMITTER PRODUCTS
Transmitter-PLC
Transmitter-PLC-Outdoor Kit
·Meets NEC 2017&2020 (690.12) requirements
·Switching off Transmitter-PLC results in rapid
shutdown of the output of PV modules
·Meets SunSpec requirements
·Equipped with single/dual core
·Optional 85-264VAC power supply
·Optional 180-550VAC power supply
·Meets NEC 2017&2020 (690.12) requirements
·Switching off Transmitter-PLC results in rapid
shutdown of the output of PV modules
·Meets SunSpec requirements
·Equipped with single/dual core
·Optional 85-264VAC power supply
·Optional 180-550VAC power supply

User Manual
4
SYSTEM WIRING DIAGRAM
The APsmart Rapid Shutdown System Transmitter-PLC is part of a rapid shutdown solution when paired
with APsmart RSD-S-PLC, a PV module rapid shutdown unit. While powered on, the Transmitter-PLC
sends a signal to the RSD-S-PLC units to keep the PV modules connected and supplying energy.
RSD-S-PLC units automatically enter rapid shutdown mode when the Transmitter-PLC is switched off and
resume energy production when power is restored to the Transmitter-PLC. This solution complies with
NEC 690.12 specifications for 2017 & 2020 and supports the SunSpec signaling for rapid shutdown.
The Transmitter-PLC includes one or two cores and an optional power supply: 85-264VAC for
residential, 180-550VAC for commercial.
Transmitter-PLC Outdoor Kit includes a Transmitter-PLC with one or two cores, outdoor enclosure,
85-264VAC or 180V-550VAC power supply. It could be used in residential or commercial projects.
①RSD-S-PLC
②Transmitter-PLC
③Inverter
*Homerun only PV+ cable through core
*If the inverter includes an integrated
SunSpec-certified Rapid Shutdown
Transmitter,remove the external
Transmitter-PLC in the wiring
diagram.
PV1+
PV1-
PV2+
PV2-
*
*

User Manual
5
SYSTEM WIRING DIAGRAM
①RSD-S-PLC
②Transmitter-PLC-Outdoor Kit
③Inverter
①RSD-S-PLC
②Transmitter-PLC-Outdoor Kit
③Inverter
④Emergency stop button box（optional）: Press the emergency stop button, the transmitter AC power
supply is disconnected, the RSD closes the output, and the system rapid shutdown.
*PV2+
*PV1+
*Homerun only PV+ cable through core
*④optional
*PV1+
*PV2+
*Homerun only PV+ cable through core

User Manual
6
RSD-S-PLC INSTALLATION
①RSD-S-PLC
②Inverter*
* Inverter in diagram includes an integrated SunSpec-certified Rapid Shutdown Transmitter.

User Manual
7
RSD-S-PLC INSTALLATION
INSTALLATION NOTES
Installation MUST comply with local regulations and technical rules：
①Perform all electrical installations in accordance with local codes.
②Be aware that only qualified professionals should install and/or replace the RSD-S-PLC.
③Before installing or using an RSD-S-PLC, please read all instructions and warnings in the technical
documents and on the inverter system itself as well as on the PV array.
④Be aware that installation of this equipment includes the risk of electric shock.
⑤Do not touch any live parts in the system, including the PV array, when the system has been
connected to the electrical grid.
⑥Ensure the PV module and inverter have been disconnected before installing an RSD-S-PLC.
⑦Do not attaching negative power wires in the homerun on any RSD devices or connectors.
①Be sure to verify the voltage and current specifications of your PV module match with those of
the RSD-S-PLC.
②The maximum open circuit voltage of the PV module must not exceed the specified maximum
input voltage of the APsmart RSD-S-PLC.
Additional installation components from APsmart
·DC extension cable (sold separately)
Required parts and tools to complete the installation
In addition to your PV array and its associated hardware, you will need a torque wrench and a Phillips
screwdriver.

User Manual
8
RSD-S-PLC INSTALLATION
Step 1: Install the RSD-S-PLC.
Buckle RSD-D onto the PV module frame.
NOTE: Do not place the RSD-S-PLC (including DC connectors) where exposed to the sun, rain or snow, even gap
between modules. Allow a minimum of 3/4’’(1.5cm.) between the roof and the bottom of the RSD-S-PLC to allow
proper air flow.
DC input -
DC input +
DC output -
DC output +
Mounting brackets

User Manual
9
RSD-S-PLC INSTALLATION
Step 2: Connect the input connectors of the RSD-S-PLC to the junction box, the
device output DC voltage is within the range of 0.6 to 1v.
NOTE: Do not short-circuit the RSD-S-PLC output connectors, otherwise it will be damaged.
RSD-S cable length
NOTE: The output cable length of triad junction box PV module should be no less than 0.9m.
NOTE: The output cable length of integrated junction box PV module should be no less than 0.9m.
≥0.9m
≥0.9m

User Manual
10
RSD-S-PLC INSTALLATION
NOTE: When installing RSD-S cable, the bending radius of the cable near the casing must be greater than 50 mm.
Step 3: Connect the output connectors of the RSD-S-PLC in series to the string, the
string open-air DC voltage is within the range of (0.6 ~ 1v) X #RSD-S-PLCs. (This
range may vary due to different on-site environment.)
NOTE: Do not connect homerun to inverter before finishing all strings connections and tests.
NOTE: Please use the same type of DC connector as the RSD in the system. The RSD damage caused by using
different type of DC connector will not be covered by the warranty.

User Manual
11
TRANSMITTER-PLC INSTALLATION
WARNING: The cores need to be fixed to prevent swing and causing the damage to the Transmitter-PLC.
The power supply of the Transmitter-PLC and the inverter must be on same AC branch circuit as inverter
to meet rapid shutdown requirements.
During operation, the Power LED should be lit and the Signal LED should be blinking. If the Transmitter-
PLC fails to work, the Signal LED will not be blinking. If the Power LED is also not lit, check the power
supply first.
NOTE: Install the RSD-S-PLC before powering the Transmitter-PLC.
• Mount Transmitter-PLC and power supply on DIN rail
• Connect DC leads from power supply to Transmitter-PLC
• Connect single/dual core(Core 1 and Core 2) to Transmitter-PLC
Place rapid shutdown system label no more than 1m (3ft) from Transmitter-PLC or AC disconnect if not at
same location.

User Manual
12
TRANSMITTER-PLC INSTALLATION
NOTE: Install the RSD-S-PLC before powering the Transmitter-PLC.
NOTE: The waterproof jacket and related accessories are not configured before delivery and customers need to
buy by themselves.
• Pass either positive or negative cables through cores
(either both positive cables or both negative cables. Do not use one positive and one negative cable.)
• Connect wires to AC side of power supply
Max number of Strings Per Core :
DC cable Diameter(without connector)
Φ5.9mm
Φ6.35mm
Φ7mm
Φ8.6mm
25mm Core
≤15
≤15
≤14
≤10
11mm Core
≤6
≤5
≤4
≤2
Max string length: 30 modules
Max current per core: 160A(25mm)/75A(11mm)
Max cable length from inverter(+) to inverter(-) : 800m

User Manual
13
TRANSMITTER-PLC INSTALLATION
Drilling Guide for .75" Conduit
Drilling Guide for 1" Conduit
Note: The Outdoor Kit was not punched before delivery and customer need to make it themselves according to
the actual situation. The figure is only for reference.

User Manual
14
TECHNICAL DATA—RSD-S-PLC
Model
RSD-S-PLC
Input Data (DC)
Input Operating Voltage Range
8-80V
Maximum Cont. Input Current (Imax)
15A
Maximum Short Circuit Current（Isc）
25A
Output Data (DC)
Output Operating Voltage Range
8-80V
Maximum System Voltage
1000V/1500V
Maximum Series Fuse Rating
30A
Mechanical Data
Operating Ambient Temperature Range
-40 oF to +185 oF (-40 °C to + 85 °C)
Dimensions (without cable & connectors)
5.5" x 1.3" x 0.7"(140 mm x 32 mm x 18 mm)
Cable Length
Input 250mm/Output 1200mm
Cable Cross Section Size
UL:12AWG
Connector
Input: Stäubli MC4 PV-KBT4&KST4 or Customize
Output: APsystems specified or Customized
Enclosure Rating
NEMA Type 6P/IP68
Protection Temperature
100°C
Features & Compliance
Communication
PLC
Safety Compliance
NEC 2017 & 2020 (690.12); UL1741; CSA C22.2 No. 330-17;
IEC/EN62109-1; 2PFG2305
EMC Compliance
FCC Part15; ICES-003;IEC/EN61000-6-1/-2/-3/-4

User Manual
15
TECHNICAL DATA—TRANSMITTER-PLC
Mode
Transmitter-PLC
Main electrical data
Input Voltage
12VDC
Input Current
0.8A
Communication
PLC
Power Supply
Residential（optional）
85-264VAC Input, 12VDC Output, 90 mm x 17.5 mm x 58.4 mm
Commercial（optional）
180-550VAC Input, 12VDC Output, 125.2 mm x 32 mm x 102 mm
Core data 25mm Core 11mm Core
Max. Current 320A（160A*2）150A（75A*2）
Max. System Voltage 1500VDC 1500VDC
Internal Opening for Wires/Outside Dimensions ~25mm/64mm ~11mm/42mm
Max. Supported PV Modules per String 30 modules 30 modules
30 modules
Number Of Strings Per Core
DC Cable Diameter(without connector)
Φ5.9mm
Φ6.35mm
Φ7mm
Φ8.6mm
25mm Core
≤15
≤15
≤14
≤10
11mm Core
≤6
≤5
≤4
≤2
Environmental
Temperature
-40°C～+100°C
Structure data
Dimensions (W x H x D)
90 mm x 35 mm x 40 mm
Enclosure Environmental Rating
IP30
Features & Compliance
Safety Compliance
NEC 2017 & 2020 (690.12); UL1741; CSA C22.2 No. 330-17
EMC Compliance
FCC Part15; ICES-003

User Manual
16
TECHNICAL DATA—TRANSMITTER-PLC-OUTDOOR KIT
Model
Main electrical data
Transmitter-PLC-Outdoor Kit
Main electrical data
Input Voltage
12VDC
Input Current
0.8A
Communication
PLC
Power Supply
Residential（optional）
85-264VAC Input, 12VDC Output, 90 mm x 17.5 mm x 58.4 mm
Commercial（optional）
180-550VAC Input, 12VDC Output, 125.2 mm x 32 mm x 102 mm
Core data
29mm Core
Max.Current
r core
320A（160A*2）
Max. System Voltage
1500VDC
1500VDC
Internal Opening for Wires/Outside Dimensions
~25mm/64mm
Max. Supported PV Modules per String
30 modules
30 modules
30 modules
Number Of Strings Per Core
DC Cable Diameter(without connector)
Φ5.9mm
Φ6.35mm
Φ7mm
Φ8.6mm
25mm Core
≤15
≤15
≤14
≤10
Environmental
Temperature
-40°C～+60°C
Structure data
Dimensions (W x H x D)
198.5 mm x 298 mm x 179 mm
Enclosure Environmental Rating
IP30
Features & Compliance
Safety Compliance
NEC 2017 & 2020 (690.12); UL1741; CSA C22.2 No. 330-17
EMC Compliance
FCC Part15; ICES-003

User Manual
17
ORDERING INFORMATION
Transmitter-PLC
RSD-S-PLC
406010
25mm Enhanced Singlel Core Transmitter-PLC (no power supply)，core line length 300mm
406011
25mm Enhanced Dual Core Transmitter-PLC (no power supply)，core line length 300mm
406002
11mm Dual Core Transmitter-PLC (no power supply)
406003
11mm Single Core Transmitter-PLC (no power supply)
408004
Single Core Transmitter-PLC Outdoor Kit, 180-550VAC Power Supply
408005
Dual Core Transmitter-PLC Outdoor Kit, 180-550VAC Power Supply
408006
Single Core Transmitter-PLC Outdoor Kit, 85-264VAC Power Supply
408007
Dual Core Transmitter-PLC Outdoor Kit, 85-264VAC Power Supply
408010
Single Core Transmitter-PLC-Outdoor Kit, 180-550VAC Power Supply, Emergency button
408011
Dual Core Transmitter-PLC-Outdoor Kit, 180-550VAC Power Supply, Emergency button
408012
Single Core Transmitter-PLC-Outdoor Kit, 85-264VAC Power Supply, Emergency button
408013
Dual Core Transmitter-PLC-Outdoor Kit, 85-264VAC Power Supply, Emergency button
415002
1500V UL, 1.2m cable, Stäubli MC4 PV-KBT4&KST4
415001
1000V UL, 1.2m cable, Customized connector
8627 N Mopac Expy, Suite 150, Austin, TX 78759 | [phone] |
[phone] | [email protected] | APsmartGlobal.com