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9 Troubleshooting

SMA America, LLC

CU600-1000US-IA-en-10

Installation Manual

9 Troubleshooting

9.1 LED Signals

The LEDs are part of the reverse polarity detection of the Connection Unit 1000-US and signalize if a
string has been connected correctly or with the wrong polarity.

Figure 13: LED signals of the reverse polarity detection for the SMA Connection Unit 1000-US

Item

LED

Status

Explanation

LED

INPUT A

glowing red

String at

INPUT A

is connected with the wrong polarity.

LED middle

glowing green String at

INPUT A

and/or

INPUT B

is connected

correctly

LED

INPUT B

glowing red

String at

INPUT B

is connected with the wrong polarity

The PowerStore Inc.

(888) 244-2979

12621 E FM 917 Suite A Alvarado, Tx 76009

Summary of Contents for 1000-US

Page 1: ...0 1000US IA en 10 IMEN CU US Version 1 0 CA US Accessories for PV Inverters SMA CONNECTION UNIT 600 US 1000 US Installation Manual The PowerStore Inc 888 244 2979 12621 E FM 917 Suite A Alvarado Tx 76...

Page 2: ...The PowerStore Inc 888 244 2979 12621 E FM 917 Suite A Alvarado Tx 76009...

Page 3: ...apply in all cases under some statutes and thus the above exclusion may not apply Specifications are subject to change without notice Every attempt has been made to make this document complete accura...

Page 4: ...uct you must carefully read and follow all instructions cautions and warnings in this manual Warnings in this document A warning describes a hazard to equipment or personnel It calls attention to a pr...

Page 5: ...product must only be performed as described in the documentation of the product Beware of hot surface The product can become hot during operation Do not touch the product during operation Risk of Fire...

Page 6: ...electrical safety codes All installations must conform with the laws regulations codes and standards applicable in the jurisdiction of installation SMA assumes no responsibility for the compliance or...

Page 7: ...Mounting the Connection Unit to a Post 25 6 Electrical Connection 26 6 1 Safety during Electrical Connection 26 6 2 Overview of the Connection Area 27 6 2 1 Enclosure Openings 27 6 2 2 Interior View o...

Page 8: ...g the Connection Unit from Voltage Sources 43 9 Troubleshooting 44 9 1 LED Signals 44 9 2 Replacing the String Fuses 45 10 Decommissioning 47 10 1 Disassembling the Connection Unit 47 10 2 Packing the...

Page 9: ...tional information can be found at www SMA Solar com Symbols Nomenclature Document title Document type Sunny Tripower 12000TL US 15000TL US 20000TL US 24000TL US Installation manual Sunny Boy 6000TLUS...

Page 10: ...A 70 The Connection Unit must only be used with the following transformerless SMA inverters SB 6000TLUS 12 7000TLUS 12 8000TLUS 12 9000TLUS 12 10000TLUS 12 11000TLUS 12 STP 12000TL US 10 15000TL US 10...

Page 11: ...ied persons only Qualified persons must have the following skills Knowledge of how electrical devices and plants work and are operated Training in how to deal with the dangers and risks associated wit...

Page 12: ...it e g inverter and protect against reconnection Cover the PV modules Turn the DC switch disconnector of the Connection Unit counterclockwise by 90 and set to OFF While operating the Connection Unit d...

Page 13: ...leteness and any externally visible damage Contact your distributor if the scope of delivery is incomplete or damaged Figure 2 Components included in the scope of delivery Item Quantity Designation A...

Page 14: ...mbined and routed into the inverter via cables The integrated fuse holders are designed to be used with string fuses for overcurrent protection The Connection Unit is equipped with a DC switch disconn...

Page 15: ...high voltages All work on the product must be carried out by qualified persons only Risk of burns from hot surfaces The product can get hot during operation Avoid contact during operation Allow the pr...

Page 16: ...amage heating or in extreme cases even fire If the string fuses are designed too small they may open too early and cause interference If the string fuses are designed too large they do not provide the...

Page 17: ...nection Unit 1000 US The reverse polarity detection will test if the polarity of the connected conductors is correct once a string has been newly connected Testing occurs by operating the integrated b...

Page 18: ...r lifting platforms Non fulfillment of these criteria may restrict servicing The mounting location should not be exposed to direct solar irradiation Direct solar irradiation can cause the Connection U...

Page 19: ...erica LLC 5 Mounting Installation Manual CU600 1000US IA en 10 19 Dimensions for mounting Figure 6 Dimensions of the mounting points The PowerStore Inc 888 244 2979 12621 E FM 917 Suite A Alvarado Tx...

Page 20: ...holes of the mounting straps of the Connection Unit the oblong holes of the wall mounting brackets of the Sunny Tripower and the drill holes for the screw in the rear panel of the Sunny Tripower to e...

Page 21: ...onnector anytime and read out the switch position Figure 7 Recommended clearances Damage to the Connection Unit by mounting it in regions with a high probability of snow Position the Connection Unit i...

Page 22: ...Permitted mounting positions The Connection Unit must be mounted in a permitted position That prevents moisture from entering the Connection Unit Figure 8 Permitted and prohibited mounting positions T...

Page 23: ...Dust or moisture intrusion can damage the Connection Unit Only mount the Connection Unit with its lid closed and with inserted filler plugs Risk of burns due to hot enclosure parts Some parts of the e...

Page 24: ...nsert screws with washers through the oblong holes of the Connection Unit into the drill holes 8 Tighten the screws Ensure that no screws are loose 9 Ensure that the Connection Unit is firmly position...

Page 25: ...it Use at least one of the oblong holes at the top and at the bottom 3 Remove the Connection Unit from the post 4 Drill holes at the markings 5 Insert suitable screw anchors into the drill holes 6 Ins...

Page 26: ...open the Connection Unit when the ambient temperature is below 23 F 5 C There might be ice on the seal of the lid when there is frost or the temperatures are below freezing Remove it prior to opening...

Page 27: ...erminals between the PV modules and the Connection Unit and between the Connection Unit and the inverter The DC input and output circuits are isolated from the enclosure and that system grounding if r...

Page 28: ...s for string fuses and terminals for connecting the negative DC cables of the PV array INPUT B E Fuse holders for string fuses and terminals for connecting the positive DC cables of the PV array INPUT...

Page 29: ...use holders for string fuses INPUT B E Terminals for connecting the positive DC cables of the PV array INPUT B F Terminals for connecting the negative DC cables of the PV array INPUT B G Reverse polar...

Page 30: ...ector OFF Turn the DC switch disconnector counterclockwise by 90 4 Disassemble the lid of the Connection Unit Loosen all captive screws with an Allen key AF 4 and remove the lid by lifting it from bel...

Page 31: ...onductors Each terminal has two connection points Overview Figure 12 Terminals for connecting the grounding conductors Cable requirements The cable must be designed in accordance with the local instal...

Page 32: ...sulation of the grounding conductor 23 32 in 18 mm 4 Connect the grounding conductor to one of the termination points of the terminal with the symbol and tighten with a screwdriver blade width 6 mm to...

Page 33: ...e Section 6 3 The DC switch disconnector must be switched OFF and the lid must be dismantled Procedure Connect the DC cables of the PV array to each INPUT A and INPUT B as follows 3 Lead the DC cables...

Page 34: ...th a Philips screwdriver Philips size 2 torque 30 in lb 3 4 Nm 7 Check the negative DC cables for correct polarity and insert them all the way into the square opening with the minus sign on the bottom...

Page 35: ...nected to the Connection Unit see Section 6 3 The DC switch disconnector must be switched OFF and the lid must be dismantled Procedure Connect the DC cables of the PV array to INPUT A and B as follows...

Page 36: ...t all cables are connected with the right polarity using the reverse polarity detection see Section 6 7 Operating the Reverse Polarity Detection page 36 6 7 Operating the Reverse Polarity Detection Th...

Page 37: ...and connect the cable to the correct terminal The red LED glows red for a few seconds How long the LED glows depends on the level of the applied DC voltage At least two of the connected cables at INPU...

Page 38: ...ock must be hardened The lock cylinder must be secured Requirements The conduits must be correctly connected to the Connection Unit see Section 6 3 The DC switch disconnector must be switched OFF and...

Page 39: ...h a way that the protruding shaft in the Connection Unit snaps into the provided opening of the DC switch disconnector Tighten all lid screws with an Allen key AF 4 torque 35 in lb 4 Nm 8 In order to...

Page 40: ...be 10 mm x 38 mm midget format Only maximum 20 A string fuses are permitted Procedure 2 Turn the DC switch disconnector OFF Turn the DC switch disconnector counterclockwise by 90 3 Remove the lid of t...

Page 41: ...Position the lid in such a way that the protruding shaft in the Connection Unit snaps into the provided opening of the DC switch disconnector Tighten all screws of the lid with an Allen Key AF 4 torq...

Page 42: ...t must be closed with UL listed type 3R filler plugs Unused input openings of the Connection Unit must be closed tightly The factory mounted filler plugs can be used for that purpose Connection Unit m...

Page 43: ...all the way 6 Detach all DC cables from the terminals using a screwdriver 1 Danger to life due to electric shock Make sure that all devices e g inverter connected to the Connection Unit are switched o...

Page 44: ...the wrong polarity Figure 13 LED signals of the reverse polarity detection for the SMA Connection Unit 1000 US Item LED Status Explanation A LED INPUT A glowing red String at INPUT A is connected wit...

Page 45: ...size must be 10 mm x 38 mm midget format Only maximum 20 A string fuses are permitted Procedure 2 Turn the DC switch disconnector OFF Turn the DC switch disconnector counterclockwise by 90 3 Remove t...

Page 46: ...way The safety levers audibly click into place 8 Mounting the lid of the Connection Unit Position the lid in such a way that the protruding shaft in the Connection Unit snaps into the provided opening...

Page 47: ...tion the lid in such a way that the protruding shaft in the Connection Unit snaps into the provided opening of the DC switch disconnector Attach all screws of the lid torque 35 4 in lb 4 Nm 4 Detach t...

Page 48: ...number of outgoing strings 2 2 CU 600 US 10 CU 1000 US 10 DC reverse polarity detection Not available available Overcurrent protection String fuses String fuses CU 600 US 10 CU 1000 US 10 Fuse holder...

Page 49: ...n 563 mm x 543 mm x 240 mm Transport weight 24 lb 11 kg Operating temperature range 40 F to 140 F 40 C to 60 C Storage temperature range 40 F to 140 F 40 C to 60 C Maximum permissible value for relati...

Page 50: ...cessories and spare parts for your product in the following overview If required these can be ordered from SMA or your specialty retailer Designation Brief Description SMA order number String fuses Re...

Page 51: ...nected Mounting location and mounting height of the Connection Unit LED signal and error message of the inverter if applicable Country Company name SMA Service Line United States Estados Unidos SMA Am...

Page 52: ...www thepowerstore com SMA Solar Technology brought to you by The PowerStore Inc SMA America LLC www SMA America com The PowerStore Inc 888 244 2979 12621 E FM 917 Suite A Alvarado Tx 76009...

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