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900-0184-01-00 Rev A 

11

 

Functions 

Arc Fault Circuit Interruption 

In a PV system, an electrical arc occurs when current bridges a gap between conductive surfaces.   
Gaps can occur due to conductor damage, or can be caused by inadequate system connections.    
An “arc fault” is a safety concern for several reasons: 

 

Risk of electric shock if the mounting system or other components become electrified.   

 

Fire hazard due to heat buildup from the current flow. 

A series arc occurs across open connections in a single conductor.  A parallel arc occurs if the current 
bridges multiple conductors that were meant to remain separate.  The arc fault circuit interrupter 
(AFCI) in the ICS Plus is intended to protect against series arcs.   

Detection 

The combiner has a dedicated arc fault detection device.  The device operates by detecting the 
distinct electrical noise created by an arc.  The detector has two current transducers, each of which 
monitors up to three PV circuits.  If an arc is detected, the detector sends a signal to the main control 
board in the combiner box. 

 

The control board sends a signal to open the combiner’s main contactor.  The 

AFCI Annunciator

 turns on.  

 

The control board also sends a signal to the RSI and turns on the “arc fault detected” indicator.   

 

NOTES:   

 

This is a simple alarm indicating that an arc fault has occurred somewhere in the system.  If 
multiple combiners are in use, the RSI cannot specify which combiner triggered it. 

 

Only the combiner with the detected arc will open its contactor.   Any other combiners in the 
system will continue to operate.  Relay-trip breakers will continue to operate. 

 

If an arc fault occurs, see the Troubleshooting section on page 19. 

Upon an arc fault event, the system is required by NEC 690.11 to be reset manually.  The manual reset 
also resets the RSI 

AFCI

 indicator and the combiner 

AFCI Annunciator

Reset 

To reset the detector following an arc fault: 

1.

 

Turn the PV Combiner Disconnect switch (or the Rapid Shutdown switch) to the OFF position.  The 

AFCI 

Annunciator

 and 

AFCI

 indicator should turn off.  All combiner box contactors will open. 

2.

 

Turn the same switch to the ON position.  The 

AFCI Annunciator

 and 

AFCI

 indicator should remain off.  

All combiner box contactors will close. 

 

NOTES:   

 

The Rapid Shutdown switch can be used to reset all combiners at once from a central location. 

 

If the Rapid Shutdown switch is used, the relay-trip breakers will turn off at the same time.  
Make certain to turn them back on when this step is performed.

 

An arc fault can also be reset by disconnecting all DC power from the system, including the batteries. 

The ICS Plus arc fault detector has been evaluated to have a low instance of nuisance tripping.  
However, installing external DC components in the system may increase the risk of nuisance tripping.  

Содержание OutBack Power FLEXware Integrated Combiner Solution Plus

Страница 1: ...FLEXware Integrated Combiner Solution Plus Owner s Manual ...

Страница 2: ...8 4363 Technical Support 1 360 435 6019 Fax 49 9122 79889 0 49 9122 79889 21 Fax Email Support outbackpower com Website http www outbackpower com Disclaimer UNLESS SPECIFICALLY AGREED TO IN WRITING OUTBACK POWER TECHNOLOGIES a MAKES NO WARRANTY AS TO THE ACCURACY SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION b ASSUMES NO RESPONSIBIL...

Страница 3: ...nterruption 11 Detection 11 Reset 11 Arc Fault Self Test 12 Rapid Shutdown 12 Rapid Shutdown Self Test 12 Verification 12 PV Combiner Disconnect 12 Installation 13 Mounting Information 13 Connection Information 14 Other Applications 17 Alternative System Requirements 17 Positive Ground 18 Troubleshooting 19 LED Indicators 19 Basic Troubleshooting 19 Specifications 21 Device Specifications 21 Regul...

Страница 4: ...ranty NOTE This type of notation indicates that the information provided is important to understanding the operation and limits of the equipment Failure to follow the recommendations in such a notation could result in improper or failed operation MORE INFORMATION When this symbol appears next to text it means that more information is available in other manuals relating to the subject The most comm...

Страница 5: ...s NEC 690 15 DC combiner disconnect opens all ungrounded circuit conductors from all energy sources Product Overview Features First end to end solution listed to UL1741 with PV rapid shutdown systems PVRSS Arc fault circuit interrupter AFCI listed to UL1699B with local and remote indication Type 3R enclosures rated for indoor or outdoor installation Flexible design install the combiner box vertica...

Страница 6: ... Rapid Shutdown Initiator RSI which works with the combiner box to induce the rapid shutdown function Relay Trip Breaker RTB which physically opens the circuits near the charge controller s Breaker control and power supply BRK CTRL DC which powers the RSI RTB and combiner Packages The ICS Plus has three prepackaged solutions for battery based systems Table 1 Packaged Systems Package ICSPLUS 1 ICSP...

Страница 7: ...sconnect to de energize PV circuits within 10 feet of the array Rapid Shutdown Initiator RSI Contains control circuit for PVRSS contactors and relay trip breakers Includes PVRSS disconnect switch Includes LED indicators for PV connection disconnection or arc fault Relay Trip Breaker RTB Removes charge controller s from PV circuit Can be integrated into OutBack GSLC or FLEXware enclosures Circuit B...

Страница 8: ...ive PV source circuits 16 PV Input Connections Connections for positive PV source circuits 6 PV Positive Output Terminal Connection for PV positive output circuit 17 Communications Terminals Communicates with RSI and additional combiner boxes 7 Internal Prewiring Factory installed for ease of installation 18 AFCI Annunciator Illuminates during an arc fault event or test 8 PV Combiner Disconnect Ac...

Страница 9: ...dicator Red LED indicator SOLAR OFF must be illuminated to confirm PV shutdown This indicator tells responders that the Rapid Shutdown switch is in the OFF position to create a safe condition 4 AFCI indicator Red LED indicator illuminates when receiving an arc fault signal from the combiner 5 3 EKO These accommodate conduit and a UL 514 compliant fitting for communication wires NOTE SOLAR ON does ...

Страница 10: ...Introduction 10 900 0184 01 00 Rev A This page intentionally left blank ...

Страница 11: ...ating that an arc fault has occurred somewhere in the system If multiple combiners are in use the RSI cannot specify which combiner triggered it Only the combiner with the detected arc will open its contactor Any other combiners in the system will continue to operate Relay trip breakers will continue to operate If an arc fault occurs see the Troubleshooting section on page 19 Upon an arc fault eve...

Страница 12: ...d Shutdown switch that initiates a disconnection of all elements of the PV system Opening this switch sends a signal to all combiners to open the main contactor on each Opening this switch also sends a signal to all relay trip breakers ordering them to open According to NEC 690 12 the rapid shutdown must reduce the DC circuit to less than 30 Vdc and 240 VA within ten seconds of initiation Because ...

Страница 13: ...ets at the top and bottom It should be installed near the service meter It must be mounted vertically and must be at least 36 91 4 cm above the ground The Rapid Shutdown switch can be padlocked in the OFF position for safety NOTE If the structure where the RSI is installed is also equipped with utility service the structure must have a permanent sign or plaque reading PHOTOVOLTAIC or PV SYSTEM EQU...

Страница 14: ... status information from the combiner s It receives PVRSS status information from the BKR CTRL DC 4 and the combiner s 5 It sends RTB disconnect commands 6 to the BKR CTRL DC Both sets of wires must be connected for correct PVRSS operation BKR CTRL DC The BKR CTRL DC connects to the battery bus in the load center See Figure 4 on page 15 It sends 24 volt power to the RTB 8 and the RSI 1 which in tu...

Страница 15: ...1 00 Rev A 15 Figure 4 Block Diagram 1 3 2 via load center 5 7 8 4 2 3 1 24V RSI Supply 5 PV RSI Safe 2 24V Combiner Supply 6 Breaker Trip 3 PV Arc Fault 7 Trip Sense 4 Breaker RSI Safe 8 Breaker Trip Coil 9 PV to RTB 9 5 6 9 ...

Страница 16: ...en Rapid Shutdown SOLAR OFF Closed Normal SOLAR ON 30 Vdc or 15 Vac 2 A J4 AUX RSI Safe Status Input Switch contacts in parallel with the Breaker RSI Safe and PV RSI Safe wires from BKR CTRL DC See page 15 These connections close a 24 Vdc Safe status circuit An external switch or relay can send a Safe signal to J4 from another location Open all connections Not Safe Closed any connection Safe Rapid...

Страница 17: ...SS NOT required FWPV6 FH600 SDA BKR CTRL DC These battery based applications may require third party equipment which operates in higher voltage ranges 300 to 600 Vdc max array 24 to 48 Vdc battery bank PVRSS required FWPV6 FH600 SDA RSI BKR CTRL DC Third party PVRSE rated for 600Vdc 300 to 600 Vdc max array 24 to 48 Vdc battery bank PVRSS NOT required FWPV6 FH600 SDA BKR CTRL DC These non battery ...

Страница 18: ...tions require the disconnection of both the grounded and ungrounded conductors The ICS Plus product depicted here has only a single contactor It will not suffice for these applications IMPORTANT The ICS Plus product depicted here cannot be used in ungrounded systems The relay trip breaker is wired differently from the method in the ICS Plus Quick Start Guide Figure 8 Positive Grounded RTB 1 2 3 1 ...

Страница 19: ...mbiner AFCI Annunciator red Arc fault condition or deliberate arc fault self test Accompanied by AFCI on RSI Will not be accompanied by AFCI Annunciators in other combiners unless other arc faults are present May be lit at the same time as SOLAR ON Basic Troubleshooting The following table describes known situations which can cause unexpected behavior in the ICS Plus The table also describes all k...

Страница 20: ...uced PV input Array wiring error or poor connection Check all PV wiring to combiner Use DVM to confirm voltage of each subarray at combiner input terminals Fuses blown in combiner box Check all fuses No indicators lit RTB off Turning RTB on does not enable PV Battery or DC source is disconnected Loss of combiner box control voltage caused the PV contactor to disconnect System is not in the formal ...

Страница 21: ...ble glands 24 to 16 AWG 0 25 to 1 5 mm2 stud 14 to 2 0 AWG 2 5 to 70 mm2 PV input Output 14 to 2 0 AWG 10 32 screw trip sense LED indicators AFCI Annunciator SOLAR ON SOLAR OFF AFCI N A N A Overcurrent Protection 6 600 Vdc DIN rail fuse holders N APNL 3AG Cartridge 3A slow blow 10kA 125VDC N A Voltage Rating 600 Vdc 24 Vdc 3 N A 300 Vdc per pole Total Current maximum 96 Adc N A N A 75 Adc per pole...

Страница 22: ... 1 14 2014 CSA C22 2 General Use Power Supplies No 107 1 3 Issue 2001 09 01 Ed 3 R2011 with PV Rapid Shutdown Compliance This product has been tested to comply with the following standards FCC Part 15 Class B FCC Information to the User This equipment has been tested and found to comply with the limits for a Class B digital device when powered by a DC source pursuant to part 15 of the FCC Rules Th...

Страница 23: ... PVRSE device CSA Canadian Standards Association establishes Canadian national standards and the Canadian Electrical Code including C22 1 and C22 2 Dry contact A relay contact with no source voltage switches the continuity to be used by an external device DVM Digital Voltmeter EKO Electrical Knockout Grounded Conductor The DC conductor negative or positive which is mechanically bonded to ground in...

Страница 24: ... A Masters of the Off Grid First Choice for the New Grid Corporate Headquarters 17825 59th Avenue N E Suite B Arlington WA 98223 USA 1 360 435 6030 European Office Hansastrasse 8 D 91126 Schwabach Germany 49 9122 79889 0 ...

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