SMA SC 200 User Manual

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Central Inverter

SUNNY CENTRAL 200 / 250 / 350 / 500 / 560

User Manual

SC-BEN100262 | 98-4003362 | Version 6.2

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SMA Solar Technology AG Table of Contents

Table of Contents

1 Notes on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1 Area of validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.4 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1 Appropriate Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3 Identifying the Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4 Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3 Grid Security Management. . . . . . . . . . . . . . . . . . . . . . . . 14

3.1 What are the requirements? . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2 Active Power Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.3 The Solution from SMA Solar Technology . . . . . . . . . . . . . . . . 15

4 Control Elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2 Sunny Central . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.1 Indicator Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.2 Key switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.3 AC Main Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.4 Emergency Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.3 Sunny Central Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.3.1 Functions of the Control Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3.2 Description of the Display Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5 Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.1 Display Messages During Operation . . . . . . . . . . . . . . . . . . . . 22

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Table of Contents SMA Solar Technology AG

5.2 Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2.1 Operating data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5.2.2 Spot Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

5.2.3 Long-Term Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.2.4 Device Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.3 Adjusting the Display Contrast . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.4 Setting the Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.5 Changing the Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.6 Enter Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.7 Display Firmware Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.8 Deleting the Daily Values of the Energy Yield. . . . . . . . . . . . . . 28

6 Measuring Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.1 Adding Further Measurement Channels . . . . . . . . . . . . . . . . . . 31

6.2 Resetting the Display of Measurement Channels to the Factory

Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

6.3 Retrieving Measurement Data . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.3.1 Retrieving Measurement Data at the Sunny Central Control . . . . . . . . . . . . 32

6.3.2 Retrieving Measurement Data via Sunny Data Control . . . . . . . . . . . . . . . . 32

6.4 Deleting Measurement Data. . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.1 Description of the Parameter Functions. . . . . . . . . . . . . . . . . . . 35

7.2 Default Parameter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

7.3 Changing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7.4 Resetting Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7.5 Saving Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

8 Sending Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.1 Selecting Remote Info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

8.2 Activating Email Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

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SMA Solar Technology AG Table of Contents

8.3 Selecting Report Types to Send . . . . . . . . . . . . . . . . . . . . . . . . 42

8.3.1 Daily Report "System Info" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

8.3.2 Hourly Report "Errors, Warnings and Events" . . . . . . . . . . . . . . . . . . . . . . . . 45

8.4 Entering or Changing an Email Address. . . . . . . . . . . . . . . . . . 46

8.5 Sending a Test Report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

9 Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

9.1 Detecting External Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

9.2 Calculating Gain and Offset. . . . . . . . . . . . . . . . . . . . . . . . . . . 50

9.3 Configuring External Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . 52

9.3.1 ExtSolIrr and ExtGloIrr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

9.3.2 Displaying Sensor Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9.4 Configuring External Messages . . . . . . . . . . . . . . . . . . . . . . . . 53

9.4.1 Setting ExtAlarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

9.4.2 Activating TmpExt C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

10 Active Power Limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

10.1 Procedure for Setting Active Power Limitation. . . . . . . . . . . . . . 55

10.2 Active Power Limitation via Grid Frequency . . . . . . . . . . . . . . . 57

11 Grid Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

11.1 Grid Connection after Fault Clearance. . . . . . . . . . . . . . . . . . . 58

11.2 Behavior of Grid Limits over Time when Breaches Occur. . . . . 59

11.3 Setting the Medium-Voltage Level

(applicable only to HE devices) . . . . . . . . . . . . . . . . . . . . . . . . 60

11.4 Disconnection Protection Ramp (DCRmp). . . . . . . . . . . . . . . . . 60

12 External Grid Monitoring Relay (optional) . . . . . . . . . . . 61

12.1 Overview of the Display and Control Elements . . . . . . . . . . . . 62

12.2 Display Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

12.3 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

12.3.1 Changing from Automatic Mode to Configuration Mode . . . . . . . . . . . . . . 64

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Table of Contents SMA Solar Technology AG

12.3.2 Access to Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

12.3.3 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

12.3.4 Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

12.4 Alarm Messages / Dealing with Errors. . . . . . . . . . . . . . . . . . . 72

12.4.1 Clear Alarm Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

12.4.2 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

13 Islanding Detection (Anti-Islanding) . . . . . . . . . . . . . . . . . 73

14 Sunny Team (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

14.1 Identification of Manager Device and Team Device . . . . . . . . 74

14.2 Display of Team Mode on the Sunny Central. . . . . . . . . . . . . . 74

14.3 Operating States of Sunny Team . . . . . . . . . . . . . . . . . . . . . . . 75

14.4 Team Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

14.5 Team Mode Interrupted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

14.6 Disable Team Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

14.7 Enable Team Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

15 Troubleshooting and Problem Solving. . . . . . . . . . . . . . . 80

15.1 Fault Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

15.1.1 Categories of Faults and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

15.1.2 Types of Faults and Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

15.1.3 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

15.1.4 Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

15.1.5 Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

15.2 Clearing Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

16 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

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SMA Solar Technology AG Notes on this Manual

1 Notes on this Manual

This manual describes the operation and troubleshooting of the Sunny Central with the aid of Sunny Central Control. Store all accompanying documentation in the direct vicinity of the Sunny Central. This must be available to operators and maintenance staff at all times

1.1 Area of validity

This manual applies to the following device types with a Sunny Central Control 03 from firmware version 2.04.

• SC 100LV

• SC 125LV

• SC 150

• SC 200HE

• SC 200

• SC 250HE

• SC 250

• SC 350HE

• SC 350

• SC 500HE

• SC 560HE

1.2 Target Group

This manual is for the use of installers and operators of PV plants equipped with a Sunny Central.

1.3 Additional Information

All manuals for the Sunny Central as well as for the installed components must be stored together with the system documentation and must be accessible at all times. The documents listed below are included in the delivery of your Sunny Central.

The following information is contained in these documents.

Installation guide Setup and installation of the Sunny Central User Manual How to operate the Sunny Central and Sunny Central Control Maintenance Manual Maintenance of the Sunny Central Wiring diagrams Wiring diagrams of the Sunny Central Accessory Documentation The documentation for optional accessories or optional equipment

for the Sunny Central (e.g. GFDI) can be found online at www.SMA.de/en.

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Notes on this Manual SMA Solar Technology AG

1.4 Symbols Used

The following types of safety precautions and general information are used in this manual:

DANGER!

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING!

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION!

CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE!

NOTICE indicates a situation which, if not avoided, could result in property damage.

Information

Information provides tips that are valuable for the optimal installation and operation of your product.

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SMA Solar Technology AG Safety

2 Safety

2.1 Appropriate Usage

The Sunny Central is a PV inverter. It allows photovoltaic solar energy from PV modules to be converted and fed into a medium-voltage grid.

The Sunny Central models SC 100LV, SC 125LV, SC 150, SC 200HE, SC 200, SC 250HE, SC 250, SC 350HE, SC 350, SC 500HE and SC 560HE are equipped with the new grid security management function. Further information on grid security management is provided in Section 3”Grid Security Management” (page14).

Principle of a grid-connected PV system with a Sunny Central

Object Description

APV Generator BSunny Central CPublic grid

Sunny Central

The Sunny Central is equipped with a low-voltage transformer, and feeds into the low-voltage grid.

Sunny Central HE

The Sunny Central HE does not have its own low-voltage transformer. It requires an adapted external medium-voltage transformer via which it can feed into the grid.

Sunny Central LV

The Sunny Central LV feeds into the low-voltage grid. It is suitable for the connection of PV generators with low voltage.

Sunny Central MV

The MV stations are medium-voltage stations. In an MV station, two Sunny Central HE devices feed into the medium-voltage grid via a shared medium-voltage transformer.

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Safety SMA Solar Technology AG

2.2 Safety Instructions

DANGER!

Contact with live components of the low voltage grid can be lethal! Death or serious burns.

• Do not touch live components of the Sunny Central or the low-voltage grid.

• All safety precautions regarding the low-voltage grid must be observed.

DANGER!

Danger to life due to high voltages in the Sunny Central! Death or serious burns.

• Any work on the Sunny Central may be carried out by qualified electricians only.

• Work on the Sunny Central must only be carried out as described in this manual.

• Comply with all the listed safety instructions.

• All the safety instructions in the Sunny Central installation guide must be observed.

DANGER!

Danger to life due to damage to the Sunny Central. Death or serious burns.

Damage to the Sunny Central, e.g. defective cables, or a damaged enclosure, can lead to death by electric shock or fire.

• Only operate the Sunny Central when it is in a technically faultless and safe condition.

• Never operate a damaged Sunny Central.

• Check the Sunny Central regularly for visible damage.

• Regularly ensure that all external safety features are freely accessible at all times, and that they function correctly.

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SMA Solar Technology AG Safety

2.3 Identifying the Sunny Central

Identify the Sunny Central by the serial number and the device type on the type plate. The type label is situated on the inside of the door.

The serial number (A) is also located on the front side of the Sunny Central.

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Safety SMA Solar Technology AG

Failure

"Start" switch

Wait

Shutdown

"Stop"

Startup

MPP load operation

Startup completed

Ppv < PpvStop

and T > TStop or

"Stop" switch

Failure

No fault

Grid

monitoring

"Stop"

Grid monitoring

time reached

Vpv > VpvStart

and T > TStart and grid

limits reached

Leave grid

limits

Stop

Leave grid

limits

2.4 Operating Modes

After switch-on, the Sunny Central runs through the different modes illustrated below. When switched off, the Sunny Central is in the "Stop" mode. By turning the key switch, the Sunny Central goes into to the "Wait" mode.

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SMA Solar Technology AG Safety

Operating mode Explanation

Stop The Sunny Central is switched off. The Sunny Central remains in this

condition until the key switch is turned to "Start".

Wait If the key switch is set to "Start", the Sunny Central goes into to the "Wait"

mode. The start voltage "VpvStart" must be adjusted to conform to the PV

generator connected to the Sunny Central. Check and adjust the start voltage as necessary.

If the input voltage is below the set start voltage "VpvStart", the Sunny Central remains in "Wait" mode. The value for "VpvStart" is shown in the display of Sunny Central Control.

If the input voltage is higher than the start voltage "VpvStart", the Sunny Central waits until the time defined in the parameter "TStart" has elapsed. If the input voltage has not fallen below the start voltage "VpvStart" during this p eriod, the Sunny Cen tral checks whether there is connection to the AC grid. If there is a valid AC grid connection, the AC contactor clos es and t he Sunny Central transfers to grid monitoring.

Grid Monitoring The grid is monitored for adherence to grid limits for the monitoring time

"GriGrdMonTm". If the grid limits are not exceeded during this time, the Sunny Central goes into the "Startup" mode.

Startup After completing grid monitoring, the Sunny Central navigates to its first

operating point and commences grid feed.

MPP load operation In MPP operation the Sunny Central feeds power to the grid and operates

continuously at the maximum power point (MPP).

Shutdown The Sunny Central shuts down (switches off) in the following cases:

• The power measured during the time interval "TStop" is less than "PpvStop".

• A failure has occurred which necessitates shutdown of the Sunny Central.

• The key switch is set to "Stop".

Failure If a fault occurs during operation, the Sunny Central shuts down and the

Sunny Central Control displays the fault. You will find a list of faults in section 15”Troubleshooting and Problem Solving” (page80).

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Grid Security Management SMA Solar Technology AG

3 Grid Security Management

3.1 What are the requirements?

In Germany, PV systems with an installed capacity of more than 100 kWp must participate in feed and grid security management. First and foremost, the utility operator must be able to limit the power of the PV system by remote control, and temporarily reduce it to zero i n critical cases. Releva nt cont rol commands from the utility operator must therefore be transmitted quickly and reliably to the Sunny Central.

The requirements in detail

• Reception of the setpoint via a centralized ripple control signal receiver with 2 or 4 relays.

• Limitation of the feed-in power in 4 configurable stages (for example, 0 % / 30 % / 60 % / 100 % of the agreed installed active power P

• Setting of the required setpoint in less than a minute.

3.2 Active Power Limitation

Under certain circumstances, the grid operator is entitled to dictate a temporary limitation of feed-in power or to implement a system shutdown. According to the Medium-Voltage Directive, generator systems must be able to reduce their active power in stages of no more than 10 % of the agreed installed active power P the connected system power have become standard practice.

. However, the four staged reductions of 100 %, 60 %, 30 % and 0 % of

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SMA Solar Technology AG Grid Security Management

3.3 The Solution from SMA Solar Technology

With the Power Reducer Box it is possibl e to imp lement active power limitation in accordance with the requirements of grid security management (GSM) for a PV system.

To do this, four di gital stat es (e.g. of a radio ripple contro l receiver ) can be imported v ia the t he Pow er Reducer Box, thus enabling the Sunny Central to be set according to the specifications of the utility operator.

The four input ports are freely configurable via the integrated web interface. If a signal from the radio ripple control receiver is present, the Power Reducer Box analyzes the signal and relays an instruction via the Ethernet network to the registered Sunny WebBox devices.

Activated Sunny WebBox devices transfer the instruction to the connected Sunny Central. Events are recorded onto the internal memory of the Power Reducer Box. In addition, it is possible to

write events onto an SD card or download events via the web interface.

Besides the Power Reducer Box, there are two further options for meeting the requirement of grid security management. These are 1) reception of the signals via an analog input on the Sunny Central and 2) manual setting of default values via parameters.

How to implement these options is described in this manual.

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Control Elements SMA Solar Technology AG

A B C

4 Control Elements

4.1 Overview

The following diagram shows the different control elements, based on the example of a Sunny Central 250.

Object Description

A Sunny Central Control B Indicator light (disturbance, warning, Sunny Team) CKey switch D Emergency shut-off with key EAC Main Switch

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SMA Solar Technology AG Control Elements

4.2 Sunny Central

4.2.1 Indicator Lights

There are 2 indicator lights at the front of the Sunny Central. If an error occurs, these indicator lights indicate the type of failure.

Meaning of the colors

Yellow: The Sunny Central is in "Alert" status. The Sunny Central does not switch off. Check the

system. Once the error is no longer active, the fault indication is automatically reset.

Red: The Sunny Central is in "Fault" status. If the Sunny Central has detected a fault, it will shut

down. Once the error has been rectified and cleared, it will resume operation. For more information see Section 15.1.2”Types of Faults and Warnings” (page81).

4.2.2 Key switch

The key switch is used to switch the Sunny Central on and off. After turning the switch to the "Start" position, the Sunny Central switches from the "Stop" mode to the "Wait" mode. Given sufficient irradiation and a valid grid, the Sunny Central goes into grid feeding operation. If the irradiation, and thus the input voltage, are too low, the Sunny Central remains in "Wait" mode.

When the key switch is turned to "Stop", the DC main switch is automatically switched off by a motor drive.

4.2.3 AC Main Switch

NOTICE!

Improper use of the AC main switch may cause damage to the Sunny Central.

The components of the Sunny Central are subject to considerable stress if the AC main switch is actuated under load. Frequent use of the AC main switch can cause stress-related damage to individual components.

• Switch off the Sunny Central with the key switch.

• Operate the AC main switch.

The AC main switch enables you to disconnect the Sunny Central from the grid on the AC side.

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Control Elements SMA Solar Technology AG

4.2.4 Emergency Stop

NOTICE!

Improper use of the emergency shut-off switch may cause damage to the Sunny Central.

The components of the Sunny Central are subject to considerable stress if the emergency shut-off switch is actuated under load. Frequent use of the emergency shut-off switch can cause stress-related damage to individual components.

• Only use the emergency shut-off switch in an emergency.

• Switch off the Sunny Central with the key switch.

The emergency shut-off switch immediately disconnects the Sunny Central from the grid and the PV generator, thus putting the Sunny Central in a safe state.

By pressing the emergency shut-off switch, the device is locked in the "Off" position. The emergency shut-off switch can only be deactivated with the appropriate key. In addition, the activation of the emergency shut-off switch must be cleared using Sunny Central Control or Sunny Data Control.

You can install an external emergency shut-off switch on each Sunny Ce ntr al o r co nne ct s eve ral Sunny Centrals via a shared emergency shut-off switch.

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SMA Solar Technology AG Control Elements

4.3 Sunny Central Control

Sunny Central settings can be adjusted by means of the Sunny Central Control. The functions performed by Sunny Central Control can be summarized as follows:

• Control of the Sunny Central operation

• Display of current measured values

• Changing the parameters of the Sunny Central

• Maximum power point (MPP) tracking

• Collection and archiving of measurement data

• Remote access capability with NET Piggy-Back

• Connection of external sensors

The Sunny Central Control is mounted at eye level on the Sunny Central. The Sunny Central Control is operated by means of four control buttons. These buttons are situated beneath the 4-line display.

Object Description

A4-line display B Control buttons

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Control Elements SMA Solar Technology AG

4.3.1 Functions of the Control Buttons

The control buttons have several functions. The buttons and their functions are described in the following table.

Button Description / Function

ESC

• Cancels / exits function

• Answers questions with "No"

• Returns to the previous menu

• Changes from the standard view to the main menu

Upward arrow

• Moves to line above

• Increases value

Downward arrow

• Moves to line below

• Decreases value

ENTER

• Selects a function from the menu

• Selects a value

• Confirms changes

• Answers questions with "Yes"

Upward arrow + downward arrow

• Returns to standard view

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4.3.2 Description of the Display Symbols

The Su nny Cen tral Contr ol display has four l ines. I t uses various display symbols, which are explained in the following table.

Symbol Description

There are more display lines below

There are more display lines above

There are more display lines above and below

Appears to the left of the currently selected line. Press [ ↑ ] or [ ↓ ] to move to another line.

Appears to the left of a value which can be changed.

(lit)

If, for example, a parameter has been changed, the arrow to the left of the active

(blinking)

line blinks. The Sunny Central Control is loading the next menu or saving data.

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Menu SMA Solar Technology AG

5 Menu

5.1 Display Messages During Operation

After the Sunny Central has been switched on, the Sunny Central Control initializes. Initialization involves a sequence of three display messages.

After initialization the Sunny Central displays the measured values and spot values shown to the right.

You can switch between the three views with the buttons [ ↑ ], [ ↓ ] or [ENTER]. If a warning or fault is reported, the display will alternate between the active standard view and the error with the highest priority.

5.2 Menu Overview

5.2.1 Operating data

Faults Current Faults SC Quit Function

BFR Error Stack Failure Err Meas. DC

Plant Status State

Inverter Status

Energy Yield E-Total

E-Today

Data files Meas. Interval

Daily Values Meas. Channels

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Other h-On

Working Time Startup counter Fault counter Alert counter

5.2.2 Spot Values

PV Ppv

Vpv Ipv

Grid Pac

Qac Sac Fac Iac Vac L1-L2 Vac L2-L3 Vac L3-L1

Red.effect.pow. P-WSpt

P-WModFailStt P-WModStt

Outp.react.pow. (displayed but not supported) Grid decoupling GriGrdStt Other T-Heat Sink C

Mppsearchcount Team status R-Insul TmpInt C TmpExt C ExtSolP ExtSolQ (displayed but not supported) ExtSolIrr ExtGloIrr

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Menu SMA Solar Technology AG

5.2.3 Long-Term Data

Long-Term Data Meas. Chn.

Energy Yield Plant Status Faults

5.2.4 Device Set-up

Password System Language

Date/Time Inverter Type Firmware BFR_SW_Vers.

Parameters Param. Function

Red.effect.pow. P-WMod, P-W, P-WNom, Plimit, Pmax, Smax Outp.react.pow.

(displayed but not supported) Grid decoupling Voltage VRtg, VCtlhhLim,

VCtlhhLimTm, VCtlhLim, VCtlhLimTm, VCtllLim, VCtllLimTm, VCtlllLim, VCtlllLimTm

Grid frequency HzRtg, HzCtlhhLim,

HzCtlhhLimTm, VCtlhLim, VCtlhLimTm, VCtllLim, VCtllLimTm, VCtlllLim, VCtlllLimTm, HzCtlMin, HzCtlMinTm

Grid connection GriGrdMonTm, VCtlOpMinNom,

VCtlOpMaxNom, HzCtlOpMin, HzCtlOpMax

Mpp Limit Val. UmppMin, dUreference, PsearchMpp,

TsearchMpp Mpp Tracking dUtrack, TcheckMpp, Mpp Factor, TrackCnt Start requiremt. Operating Mode, VpvStart, Tstart Shut-down requ. PpvStop, Tstop Grid Monitor. PpvMinCheck Other E-Total Offset, TMax. cabinet, TMin. cabinet,

Team function, P-Next Team, P-Prv. Team, Tau-FP,

Test.feed.unit, Date availab., TmpDrtStopMod

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Interfaces Communication COM1:SMUs Medium, Baud rate,

Protocol

COM2: Inverter Medium, Baud rate,

Protocol, Registration, Detection, Parameters, Measured values

COM3: PC Medium, Baud rate,

Protocol

Analog In ExtSolP, R-Insul, ExtSolIrr, ExtGloIrr, ExtAlarm,

ExtSolQ (displayed but not supported), TmpExt C Digital In Digital Input 1 - 8 Digital Out +Diag Ext+24V, +Diag DOut, Dig. Output 1 - 8

Data archives Data Recording

Meas. Interval Max. Storage Chan. Select.

SMUs Devices Registration, Detection, Parameters, Measured

Values Parameters regist. SMUs, Error Report Time, Polling Time,

SMU_Overnight Shutdown, SMU_Theft,

Tolerance Grp1 - 3 Measured Values mean value Grp1 - 3 Failure Actual Failures, Hist. failures

NET/EMAIL NET KO_NET, KO_NET-ETH IP, NET-ETH SNET,

KO_NET-ETH PVSN, NET-ETH GW,

NET-ETH DNS Remote-Info EMAIL

Events Plant info, warnings,

errors, daily report at

Recipient Company/Name,

EMAIL TO, EMAIL CC1, EMAIL CC2

Sender Plant Name, EMAIL

FROM

ISP Account ISP Phone No., ISP

User, ISP Pass

SMTP Account SMTP Server, SMTP

User, SMTP Pass, Default

Test Report

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Menu SMA Solar Technology AG

[ Language ]

German

English

spanish

5.3 Adjusting the Display Contrast

You can adjust the display contrast in any menu. You need to use a two-button combination to increase or decrease the contrast.

Button combination Function

[ESC] + [ ↑ ] Increases the contrast. [ESC] + [ ↓ ] Decreases the contrast.

5.4 Setting the Language

You can choose between the languages German, English and Spanish. If you wish to change the language setting, proceed as follows:

1. Select „Device Set-up > System > Language“.

2. To select the required language press [ENTER] twice. ☑The required language is now set.

5.5 Changing the Date and Time

The Sunny Central Control's default settings for date and time correspond to the Central European time zone. In order to change the date or the time proceed as follows:

1. Select "Device Set-up > System > Date/Time".

2. Click on the date.

3. Set the required date (day, month and year ) with the [ ↑ ] or [ ↓ ] buttons and confirm each value setting with [ENTER].

4. Press [ENTER] twice to confirm the date as a whole. ☑ The required date has been set.

5. Click on the time.

6. Set th e requi red ti me (hours and mi nutes) with the [ ↑ ] or [ ↓ ] buttons and c onfirm each value setting with [ENTER].

7. Press [ENTER] twice to confirm the time as a whole. ☑ The required time has been set.

☑ Date and time have now been changed.

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5.6 Enter Password

Safety-relevant Sunny Central parameters can only be adjusted after entering a password. You can obtain a password from our Serviceline (see Section 16”Contact” (page94)).

Proceed as follows to enter the password:

1. Select "Device Set-up > Password".

2. Enter the password with the [ ↑ ] or [ ↓ ] buttons and confirm the set value with [ENTER]. ☑ After confirmation, the entered values are displayed as a row of asterisks.

☑ The Sunny Central Control beeps 3 times if the correct password has been entered. If the

password is incorrect, the Sunny Central Control beeps once.

Locking the Sunny Central Control

You can lock the Sunny Central Control under "Device Set-up > Password", by entering an incorrect password, or no password.

Password protection will automatically resume at midnight, or after a restart of Sunny Central Control.

5.7 Display Firmware Version

You can view the firmware version on Sunny Central Control under "Device Set-up > System > Firmware".

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Menu SMA Solar Technology AG

5.8 Deleting the Daily Values of the Energy Yield

The daily values of the energy yield can be displayed on the Sunny Central Control under "Long-Term Data > Energy Yield". The daily values are sorted according to the month. A list of daily energy yields is displayed upon selecting the required month by pressing [ENTER].

You can delete the daily energy yield values as described below:

1. Select "Device Set-up > Parameters > Param.-Function".

☑ The display blinks.

2. Select "Del Daily Value" with the [ ↓ ] button and confirm by pressing [ENTER ].

☑ The daily energy yield values have now been reset

to the factory setting.

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SMA Solar Technology AG Measuring Channels

6 Measuring Channels

Yo u ca n us e th e Su nny Cen tral Con tro l to dis pla y di ffe ren t me asurement channels. To do this, proceed as described in Section 6.3”Retrieving Measurement Data” (page32).

All the measurement channels are described in the following table. The measurement channels marked with an * are preset in the factory and are standardly displayed in the Sunny Central Control under "Long-Term Data > Meas. Chn. > SC...SCXXX".

Measuring channel Description

+Diag DOut The measurement channel can only be seen after the installer password

has been entered. Status of the digital output "+Diag DOut" (Status: Fault, Okay)

+Diag Ext+24V The measurement channel can only be seen after the installer password

has been entered. Status of the digital output "+Diag Ext+24V"

(Status: Fault, Okay) Startup counter Counter for the number of times the system has started up. Digital Input 1 Status of digital inputs 1 to 8 Digital Input 2 Digital Input 3 Digital Input 4 Digital Input 5 Digital Input 6 Digital Input 7 Digital Input 8 E-Today Energy which the Sunny Central has fed into the grid today. This is the

energy generated from the time the Sunny Central starts operating in the

morning to the moment of the reading. Error * Error of the Sunny Central. E-Total Total energy which the Sunny Central has fed into the grid during its

operating time. ExtGloIrr Analog input - external pyranometer (optional) ExtSolIrr Analog input - external irradiation sensor (optional) ExtAlarm Analog input - external temperature sensor (optional) ExtSolP Analog input - external setpoint specification of active power ExtSolQ This measuring channel is displayed but not supported. Fac Grid frequency FI Code Response code of the NET Piggy-Back FI Status Status of the connection setup to the NET Piggy-Back h-On * Total number of operating hours h-Total * Total number of operation hours with grid feed

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Measuring channel Description

Iac Grid output current Ipv * DC input current Comm.fault SMU Faulty communication with Sunny String-Monitor No. Meas. Data Counter for the number of times an entry is saved in the circular buffer. Mean value Grp1 Mean value of the str ing current s of Sun ny S tri ng-Monitor group 1 to Sunny Mean value Grp2

String-Monitor group 3

Mean value Grp3 Mode * Sunny Central operating mode (e.g. MPP) Mppsearchcount Counter for the number of times the system changed to MPP Search. Pac * Grid output power of the des Sunny Central Pac smoothed Smoothed feed-in power. Ppv DC input power of the Sunny Central P-WModStt * Display of the currently effective active power limit. Qac * Reactive power Reg. SMUs Number of registered Sunny String-Monitors R-Insul * Isolation resistance SMU Warncode The channel "SMU Warncode" displays a number code "xxyy" where xx:

denotes the number of the faulty Sunny String-Monitor (1 to 40) and yy the

er ror num ber 01 - 08: cha nne l nu mbe r fo r er ror in s tri ng c urr ent monitoring;

09 - 10: error in signaling contact monitoring Fault counter Counter for the number of times a fault has occurred. Team Status Status of Sunny Team

For more information, refer to Section 14.4”Team Status” (page76). Cooler Temp. * Temperature of the heat sink TmpExt C * Analog input of the external temperature sensor (optional) TmpInt C Analog input of the internal temperature sensor (standard) TStart Reverse Time remaining until the system starts up. TWait Reverse Time remaining until the next plant start-up attempt Vac L1-L2 * Grid output voltage L1-L2 Vac L2-L3 Grid output voltage L2-L3 Vac L3-L1 Grid output voltage L3-L1 Vpv * DC input voltage of the Sunny Central Vpv0 * Open-circuit voltage of the PV plant VpvSet DC setpoint input voltage Warn. counter Counter for the number of times a warning has occurred.

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6.1 Adding Further Measurement Channels

You can add further channels to the standard 14 measurement channels. To do this, proceed as follows:

1. Select "Device Set-up > Data Archives > Chan. Select. > SC...SCCXXX". ☑ The Sunny Central Control displays all

measurement channels. The measurement channels already displayed in the menu "Long- Term Data > Meas. Chn. > SC...SCXXX" are marked with a dot.

2. Select the measurement channel to be added with the [ ↓ ] button and confirm with [ENTER]. ☑ A dot now appears in front of the selected measurement channel.

3. When exiting the menu, confirm changes with [ENTER].

☑ Further measurement channels have been added. To call up the measurement data, follow the

steps in Section 6.3”Retrieving Measurement Data” (page32).

6.2 Resetting the Display of Measurement Channels to the Factory Setting

The Sunny Central Control displays 14 measurement channels as standard. If you have added extra channels to the display, it is possible to reset the display back to default. To do this, proceed as follows:

1. Select "Device Set-up > Parameters > Param. Function".

☑ The display blinks.

2. Select "default chan.". ☑ The display stops blinking.

3. Press [ENTER].

☑ The display of the measurement channels is now reset to the factory setting.

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Measuring Channels SMA Solar Technology AG

6.3 Retrieving Measurement Data

All selected measurement channels and their measured values are recorded in the Sunny Central Control. You can retrieve the measurement data directly at the Sunny Central Control or via Sunny Data Control.

6.3.1 Retrieving Measurement Data at the Sunny Central Control

Proceed as follows to retrieve the measurement data directly at the Sunny Central Control.

1. Select "Long-Term Data > Meas. Chn. > SC...SCXXX".

☑ The Sunny Central Control displays the

measurement channels.

2. Selec t the required m easure ment chann el with the [ ↓ ] arro w button and confirm with [ENTER].

3. Select the required date with the [ ↓ ] arrow button and confirm with [ENTER].

☑ The Sunny Central Control displays the required measurement channel for the selected date.

6.3.2 Retrieving Measurement Data via Sunny Data Control

You can retrieve the measurement data via Sunny Data Control. The data is compiled in a channel record.

For more information on updating, refer to the Sunny Data Control manual.

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6.4 Deleting Measurement Data

You can delete measurement data as described below:

1. Reset the measurement channels to the factory setting as described in Section 6.4”Deleting Measurement Data” (page33).

2. Select "Device Set-up > Parameters > Param.- Function".

☑ The display blinks.

3. Select “Del. meas. data”. ☑ The display stops blinking.

4. Press [ENTER].

☑ The measurement data is now deleted.

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Parameters SMA Solar Technology AG

7 Parameters

The parameters of the Sunny Central are preset for operation. It is advisable to adapt some of the Sunny Central's parameters to the PV generator and to the requirements of grid security management.

The Sunny Central's parameters are subdivided into various menus:

• Red.effect.pow. Parameters for active power limitation

• Outp.react.pow. Parameters for the reactive power setpoint (these parameters are displayed, but are not

supported.)

• Grid decoupling (disconnecting the Sunny Central from the grid) Parameters for grid decoupling

• Grid connection Parameters for grid connection

• Mpp Limit Val. Limit values for MPP mode

•MPP Tracking Settings for MPP mode

• Start requiremt Parameters for startup of the Sunny Central

•Shut-down requ Parameters for the controlled shutdown of the Sunny Central

• Grid Monitor. Parameters for grid conditions

•Other Various additional functions

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7.1 Description of the Parameter Functions

The following parameters can be found in the menus. Parameters marked with * may only be changed after consultation with SMA Solar Technology. Some parameters are preset by SMA Solar Technology and cannot be changed.

Parameters Description of function Red.effect.pow.

P-WMod This parameter is used to select the procedure for limiting active power. P-W This parameter is used to manually preset the active power limit in kW. P-WNom This parameter is used to manually preset the active power limit in percent. Pac nominal Nominal active power of the Sunny Central. Pac max * This parameter is used to restrict the active power. This is necessary, for

example, if the feed-in power has to be limited at the grid node.

Smax Maximum permissible apparent feed-in power

Outp.react.pow. (Parameters in this menu are displayed but not supported) Grid decoupling / Grid voltage

VRtg This parameter specifies the nominal line voltage of the public grid. All voltage

data given as a percentage refers to this nominal voltage (100 % = VRtg). VCtlhLim Threshold value for triggering at overvoltage in Level 1. VCtlhLimTm Triggering time for the threshold value at overvoltage in Level 1. VCtlhhLim Threshold value for triggering at overvoltage in Level 2. VCtlhhLimTm Triggering time for the threshold value at overvoltage in Level 2. VCtllLim Threshold value for triggering at undervoltage in Level 1. VCtllLimTm Triggering time for the threshold value at undervoltage in Level 1. VCtlllLim Threshold value for triggering at undervoltage in Level 2. VCtlllLimTm Triggering time for the threshold value at undervoltage in Level 2. VCtlMin Minimum threshold value at undervoltage in Level 3. VCtlMinTm Triggering time for minimum threshold value at undervoltage in Level 3.

Grid decoupling / Grid frequency

HzRtg Nominal frequency of the energy supply grid HzCtlhhLim Threshold value for triggering at overfrequency in Level 2. HzCtlhhLimTm Triggering time for the threshold value at overfrequency in Level 2. HzCtlhLim Threshold value for triggering at overfrequency in Level 1. HzCtlhLimTm Triggering time for the threshold value at overfrequency in Level 1. HzCtllLim Threshold value for triggering at underfrequency in Level 1. HzCtllLimTm Triggering time for the threshold value at underfrequency in Level 1. HzCtlllLim Threshold value for triggering at underfrequency in Level 2. HzCtlllLimTm Triggering time for the threshold value at underfrequency in Level 2. HzCtlMin Minimum threshold value for triggering at underfrequency in Level 3.

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Parameters SMA Solar Technology AG

Parameters Description of function

HzCtlMinTm Triggering time for the minimum threshold values at underfrequency in Level 3.

Grid connection

GriGrdMonTm This parameter defines the time span required to meet the switch-on conditions,

before the Sunny Central can be reconnected to the energy supply grid. VCtlOpMinNom This parameter determines the minimum grid voltage, as a percentage of the

nominal voltage VRtg, which must be present at the Sunny Central for it to

reconnect to the energy supply grid. VCtlOpMaxNom This parameter defines the maximum grid voltage, as a percentage of the

nominal voltage VRtg, which may be present at the Sunny Central for it to

reconnect to the energy supply grid HzCtlOpMin This parameter determines the minimum grid frequency which must be present

at the Sunny Central for it to reconnect to the energy supply grid. HzCtlOpMax This parameter defines the maximum grid frequency which may be present at

the Sunny Central for it to reconnect to the energy supply grid.

Mpp Limit Val.

VmppMin * Minimum MPP voltage required for the Sunny Central to feed. dVreference MPP tracking is possible within a range equal to 2 x dVreference. As soon as

the voltage breaches these voltage limits, the inverter cha nges to "MPP Se arch"

mode.

Default setting: 80 V

Recommendation for operation with thin-film modules: 120 V PsearchMpp * If the currently measured PV power drops below the value PsearchMpp for the TsearchMpp *

duration of TsearchMpp, the Sunny Central restarts the search for the MPP.

MPP Tracking

dVtrack * During MPP tracking, the inverter changes the voltage in "dUtrack" steps at TcheckMpp *

"TcheckMpp" intervals before it selects the MPP.

Mpp Factor The start value for MPP tracking is obtained by multiplying the "Mpp Factor"

parameter by the measured open circuit voltage.

Factory setting: 0.80

Recommendation for operation with thin-film modules: 0.70 TrackCnt During operation, the Sunny Central searches the maximum power point. It

checks the voltage up to seven times (default setting) in one direction, e.g.

always toward the higher voltage. After the seventh time (at the latest), it also

searc hes below t he last voltage , in order to che ck whether the maximum power

point has decreased. If, for example, the Sunny Central finds a lower power

point upon the third increase, it searches below the most recently checked

voltage.

Start requirement

Operating mode * MPP is set as a condition for starting up the inverter.

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Parameters Description of function

VconstSet Setpoint for constant voltage operation. VpvStart Vpv must be > VpvStart for the duration of Tstart so that the Sunny Central can Tstart

switch from "Wait" mode to "Startup" mode. The start voltage VpvStart must be

adjusted to conform to the PV generator which is connected to the Sunny

Central. Twait If, in three consecutive startup attempts, PpvStop is not exceeded, the next

startup attempt will not occur before the Twait period has elapsed.

Shut-down requirement

PpvStop * If Ppv < PpvStop for the duration of Tstop, the Sunny Central goes into Tstop

"Shutdown" mode.

Grid Monitoring

PpvMinCheck * PpvMinCheck appears only after entering the installer password. If

PpvMinCheck is set to "off", the Sunny Central continues to operate after the

sh utd own cond iti ons hav e be en met. A s a r esu lt, the S unn y Ce ntr al will continue

to operate at night and will have to draw its operating power from the grid. ext.Power Swit. Activation of grid disconnection

Other

E-Total Offset With this parameter, a constant offset can be applied to the internal energy

co unt er. Afte r re pla cem ent of th e Su nny Cen tral Con tro l, i t is advisable to adjust

this parameter. TMax. cabinet* If cabinet temperature exceeds "TMax. cabinet", the warning "cabinet Temp."

is generated. TMin. cabinet* If cabinet temperature drops below "TMin. cabinet", the warning "cabinet

Temp." is generated. Team-Funktion Activating and deactivating team operation

For more information, refer to Sections .14.6”Disable Team Mode” (page78)

and 14.7”Enable Team Mode” (page79).

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Parameters SMA Solar Technology AG

7.2 Default Parameter Settings

The following table gives a summary of the main operating parameters. It includes the adjustable range and default value of each parameter. The adjustable range and default value depend on the Sunny Central model.

The parameters marked with * can only be displayed / changed after entering the installer password (see Section 5.6”Enter Password” (page27)).

Parameters Area Normal

VmppMin * 450 ... 880 V

(SC 200 / SC 250 / SC 350 / SC 500) 540 ... 880 V (SC 560)

dVreference * 5 V ... 200 V 80 V PsearchMpp * 0 ... 25000 W device-specific setting TsearchMpp * 60 ... 3600 s 600 s dVtrack * 1 ... 10 V 5 V/TaMp TcheckMpp * 10 ... 60 s 10 s Mpp Factor * 0.20 ... 1.00 0.80 TrackCnt * 5 ... 20 7 VpvStart 200 ... 1000 V 400 V (SC 100LV / SC 125LV)

Tstart 1 ... 600 s 90 s Twait 0 ... 1800 s 600 s PpvStop 0 ... 10000 W device-specific setting Tstop 1 ... 300 s 60 s Pac max * 1 ... 1000 kW device-specific setting TMax. cabinet 30 ... 70 °C 50 °C TMin. cabinet -30 ... 10 °C -20 °C

250 V (SC 100LV) 300 V (SC 125LV) 450 V (SC 500HE / SC 350HE / SC 350 / SC 250HE / SC 250 / SC 200HE / SC 200 / SC 150) 540 V (SC 560)

600 V (SC 500HE / SC 350HE / SC 350 / SC 250HE / SC 250 / SC 200HE / SC 200 / SC 150) 650 V (SC560HE)

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7.3 Changing Parameters

Impaired functionality of Sunny Central due to changed parameters

Parameters which have not been changed properly can partly or completely impair the functionality of the Sunny Central.

• The parameters marked with * may only be changed after consultation with SMA Solar Technology.

• After work has been carried out on the Sunny Central Control, it must be relocked in order to prevent any parameter alterations being carried out by third parties.

Grid parameters

Certain parameters enable you to set values which are relevant for grid security. You must consult Sunny Central Service before making any changes to these parameters.

This chapter describes how you can adjust parameters at the Sunny Central Control. You can adjust the parameters by any of the following options:

• At the Sunny Central with Sunny Central Control.

• On site with a laptop and the Sunny Data Control software.

• Via remote access from a PC with Sunny Data Control, or via Sunny WebBox.

The S unny Data Control or Sunny WebBox documentation describes how you can adjust parameters via Sunny Data Control or Sunny WebBox.

Please note that not all parameters can be adjusted via remote access. Certain parameters can only be adjusted when the Sunny Central is in the „Stop“ mode.

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Parameters SMA Solar Technology AG

Change the parameters of the Sunny Central at the Sunny Central Control as described below:

1. Enter the password as described in Section 5.6”Enter Password” (page27).

2. Select "Device Set-up > Parameters".

3. Press [ENTER] to select the menu in which a parameter is to be changed.

4. Press [ENTER] to select the parameter to be changed.

5. Make a note of the preset value of the parameter.

6. Change parameter after consultation with SMA Solar Technology.

7. Confirm the change with [ENTER].

☑ The required parameter has been changed.

7.4 Resetting Parameters

To reset parameters, proceed as described in Section 7.3”Changing Parameters” (page39), and enter the original values of your Sunny Central.

7.5 Saving Parameters

Once parameters have been changed, save them as described below.

1. Enter the password as described in Section 5.6”Enter Password” (page27).

2. Select "Device Set-up > Parameters > save parameter".

3. Press [ENTER] twice.

☑ The parameters are now saved.

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SMA Solar Technology AG Sending Data

8 Sending Data

Using the "NET Piggy-Back" option, the Sunny Central Control can be monitored remotely, and can send email reports concerning the operating status or present errors and events. Depending on your order preferences, the Sunny Central is delivered ex works either without any communication devi ces, or with a NET Piggy-Back in one of the three following versions:

•Analog

•ISDN

•Ethernet

The connection of Sunny Central Control to a telephone line, a router or a PC, is described in the NET Piggy-Back manual.

Th e Su nny Cen tra l Co ntr ol i s pr eset for the res pec tiv e co mmu nic ati on t ype . If you wis h to rec eiv e em ail reports, you must adjust the setting for this. For further information on reports, please refer to Section

8.1”Selecting Remote Info” (page41).

8.1 Selecting Remote Info

1. Enter the password as described in Section 5.6”Enter Password” (page27).

2. Select „Device Set-up > NET/Email > Remote-Info“.

☑ The menu shown to the right now appears.

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Sending Data SMA Solar Technology AG

8.2 Activating Email Reports

1. Select Remote Info as described in Section 8.1”Selecting Remote Info” (page41).

2. Press [ENTER]. ☑The line below „E-mail“ starts to blink.

3. Select "activated" with the [ ↓ ] button.

4. Press [ENTER] twice.

☑ The email reports are now activated.

8.3 Selecting Report Types to Send

1. Select Remote Info as described in Section 8.1”Selecting Remote Info” (page41).

2. Select "Events".

3. Select which reports should be sent at which time.

Report Types and Setting Options

Report Description Adjustable

Plant-Info Report on the present values of your

system, e.g. E-total, E-today.

Warnings Report of generated warnings. • No report

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•No report

•Daily report (recommended)

• Hourly report

•Daily report (recommended)

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SMA Solar Technology AG Sending Data

Report Description Adjustable

Errors Report of errors which have occurred • No report

• Hourly report (recommended)

•Daily report

Event Report of generated events.

In addition to the report, you can have the events displayed on Sunny Central Control under "Long-Term Data > Plant Status".

•No report

• Hourly report

•Daily report (recommended)

Refer to Section 15.1.5”Events” (page93) for a description of possible events.

Send at Here you can set the time at which the

•Time

daily report should be sent. SMA Solar Technology recommends setting the time to 22:15 (10.15 p.m.).

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Sending Data SMA Solar Technology AG

8.3.1 Daily Report "System Info"

The daily report "Plant Info" can contain the following information:

Display Description

ID = SC GERAET = name of the Sunny Central concerned. SERIENNUMMER = serial number of the Sunny Central concerned. E-Total = total energy which the Sunny Central has fed into the grid during its

operating life.

E-Heute = energy which the Sunny Central has fed into the grid on the current day.

This is the energy generated from the time the Sunny Central starts operating in the morning to the moment of the reading.

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8.3.2 Hourly Report "Errors, Warnings and Events"

The hourly report "Errors, Warnings and Events" can contain the following information:

Display Description

ID = SC GERAET = name of the Sunny Central concerned. SERIENNUMMER = serial number of the Sunny Central concerned. DATUM = date of the error, the warning or the event ZEIT = time at which the error, warning or event was detected by the Sunny

Central > behind the time (before the message) means that the message appeared

at the given time. < after the time (before the message) means that the message was

cancelled at the given time.

MELDUNG = number of the fault, warning or name of the event

For more information on error or fault messages see Section 15”Troubleshooting and Problem Solving” (page80).

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Sending Data SMA Solar Technology AG

8.4 Entering or Changing an Email Address

1. Select Remote Info as described in Section 8.1”Selecting Remote Info” (page41).

2. Select "Recipient".

3. Enter a company name in the top line "FIRMA XYZ- SOLA" and confirm with [ENTER].

4. Enter your name in line 2 "HERRN MUSTERMA" and confirm with [ENTER].

5. Enter your email address in line 3 "EMAIL TO" and confirm with [ENTER].

In line four „EMAIL CC1" and line five "EMAIL CC2", you can enter two additional email addresses to which reports should be sent.

6. Confirm addresses with [ENTER].

☑ The email addresses are now entered.

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8.5 Sending a Test Report

1. Select Remote Info as described in Section 8.1”Selecting Remote Info” (page41).

2. Select "Test Report". ☑ In the display of Sunny Central Control "Start"

appears.

3. Press [ENTER] to send a test report.

☑ The test report has now been sent.

☑ The test report could not be sent. The message

shown to the right is displayed. The meaning of the error code in the bottom line is described in the NET Piggy-Back manual.

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Analog Inputs SMA Solar Technology AG

9 Analog Inputs

Analog Sensors

In the Sunny Central it is possible to install two sensors (ExtSollrr, ExtGlolrr) onto Sunny Central Control via the customer’s terminal strip. The table below shows the various connection options available to the customer. These sensors can be configured by the customer.

If you have ordered the option "Installation in chemically active environment", the analog input "TmpExt C" will be allocated to a temperature sensor PT 100 at the factory. In this case, the ambient temperature will be measured outside the Sunny Central and will influence its operation behavior.

External Signals

In addition to the analog sensors, three further signals can be connected: ExtAlarm, ExtSolP and ExtSolQ. These signals have a direct effect on the operation of the Sunny Central. The analog inputs ExtSolP and ExtSolQ serve to regulate active and reactive power.

This section describes how to activate the display of the sensors on the Sunny Central Control and how to configure them. The electrical connection of the sensors is described in the Sunny Central installation guide.

Overview of Analog Inputs

Input Meaning

ExtSolP External setpoint specification for active power ExtSolIrr External radiation sensor ExtGloIrr Pyranometer (measurement of incident solar irradiation) ExtAlarm External alarm input, e.g. for monitoring the function of the med ium-vo ltage

transformer ExtSolQ External setpoint specification for reactive power TmpExt C External temperature sensor / PT 100 (will be supported only with option

"Installation in chemically active environment")

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9.1 Detecting External Sensors

1. Enter the password as described in Section 5.6”Enter Password” (page27).

2. Select "Device Set-up > Interfaces > Analog In".

3. Select the required analog input.

☑ A detailed view of the required analog input is

di spl aye d. T he f igu re to the rig ht s how s th e detail ed view of the analog input "ExtSolIrr".

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9.2 Calculating Gain and Offset

Calculating gain and offset using the example of "ExtSolIrr".

1. Detecting external sensors as described in Section 9.1”Detecting External Sensors” (page49).

2. Set "ctrl ExtSolIrr" to "on" to activate the analog input for the sensor.

3. Select a measurement range for the analog sensor ,

+/-10V

e.g. " The displayed value is calculated by means of the

following: – the value measured by the sensor – the value indicated for gain – the value indicated for offset

4. Calculate the gain factor and the offset. The gain factor is obtained by dividing the display range by the measured range.

Gain factor = display range / measured range

The offset is calculated by subtracting the product of gain factor x lower limit of measured range from the lower limit of the display range.

Offset = lower limit of display range - (gain factor x lower limit of measured range)

Formulae

M is a value measured in a range between Ml and Mu. D is the value to be displayed in a range between Dl and Du.

Gain: G = (Du - Dl) / (Mu - Ml) Offset: O = Dl - (G x Ml) Display on the Sunny Central Control: D = (G x M) + O

Explanation of the abbreviations used

M measured value Mu upper limit of measured range Ml lower limit of measured range O Offset GGain D Display value Du upper limit of display range Dl lower limit of display range

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Example calculation: pyranometer

A pyranometer has an output voltage of 0 to 10 volt, which corresponds to an irradiation between 0 and 1350 W/m

Ml = 0 V Mu = 10 V Dl = 0 W/m² Du = 1350 W/m²

Formula Calculation

G = (Du - Dl) / (Mu - Ml) G = (1350 - 0) / (10 - 0) = 135 O = Dl - (G * Ml) O = 0 - (135 x 0) = 0 W/m

Example if M = 5 V

Formula Calculation

D = (G x M) + O 135 x 5 + 0 = 675

Example calculation: temperature sensor

A thermometer with measurement transducer outputs 4 to 20 mA, which corresponds to a temperature range of –30 to 80 °C.

Ml = 4 mA Mu = 20 mA Dl = –30 °C Du = 80 °C

Formula Calculation

G = (Du - Dl) / (Mu - Ml) G = (80 - (-30)) / (20 - 4) = 6.875 O = Dl - (G x Ml) O = (–30) – (6.875 x 4) = –57.5 °C

Example if M = 4 mA:

Formula Calculation

D = (G x M) + O 4 x 6.875 + (–57.5) = –30

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9.3 Configuring External Sensors

9.3.1 ExtSolIrr and ExtGloIrr

1. Open the detailed view of the sensor, as described in Section 9.1”Detecting External Sensors” (page49).

2. Activating or deactivating the external sensor.

ctrl ExtSolIrr, ctrl ExtGloIrr

Adjustable Meaning

off Sensor deactivated. on Sensor activated. After the sensor has been activated it is displayed

under "Spot Values > Other". Also see Section 9.3.2”Displaying Sensor Values” (page53).

3. Setting the function of ExtSolIrr and ExtGloIrr.

Fct ExtSolIrr, Fct ExtGloIrr

Adjustable Meaning

Deactivated The analog input is deactivated +/- 20 mA Current measurement -20 mA to +20 mA +/- 10 mV Voltage measurement -10 mV to +10 mV +/- 20 mV Voltage measurement -20 mV to +20 mV +/-50 mV Voltage measurement -50 mV to +50 mV +/- 100 mV Voltage measurement -100 mV to +100 mV +/- 500 mV Voltage measurement -500 mV to +500 mV +/- 1 V Voltage measurement -1 V to +1 V +/- 5 V Voltage measurement -5 V to +5 V +/- 10 V Voltage measurement -10 V to +10 V

☑ ExtSolIrr and ExtGloIrr have now been configured.

Gain

Conversion factor. See Section 9.3.2”Displaying Sensor Values” (page53).

Offset

Value which is added. See Section 9.3.2”Displaying Sensor Values” (page53).

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9.3.2 Displaying Sensor Values

1. Select "Spot Values > Others".

2. Select the required sensor.

☑ The present value is displayed under the sensor name.

9.4 Configuring External Messages

9.4.1 Setting ExtAlarm

The analog input ExtAlarm is preconfigured for the connection of an external alarm. Activate or deactivate monitoring as described below.

1. Open the detailed view of the sensor, as described in Section 9.1”Detecting External Sensors” (page49).

2. Set ExtAlarm.

ctrl ExtAlarm

Adjustable Meaning

deactivated Sensor is deactivated. Active High Alarm is triggered if 24 V are present at the alarm input terminal. Active Low Alarm is triggered if 0 V are present at the alarm input terminal.

Email when alarm is triggered

If you have activated the email report for "Warnings", you will receive an email immediately after the alarm has triggered.

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9.4.2 Activating TmpExt C

The analog input "TmpExt C" is preconfigured for the connection of a temperature sensor. Activate or deactivate the analog input as described below:

1. Open the detailed view of the sensor, as described in Section 9.1”Detecting External Sensors” (page49).

2. Activating or deactivating the sensor.

ctrl TmpExt C

Adjustable Meaning

off Sensor deactivated. on Sensor activated. After the sensor has been activated it is displayed

under "Spot Values > Other". Also see Section 9.3.2”Displaying Sensor Values” (page53).

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10 Active Power Limitation

There are 3 different methods of limiting active power. You have the option of specifying a setpoint via the ExtSolP analog input or via a Sunny WebBox in connection with a Power Reducer Box. You can also set the limitation manually.

You also have the option of setting a frequency-dependent active power limitation. For more details, please see Section 10.2”Active Power Limitation via Grid Frequency” (page57).

10.1 Procedure for Setting Active Power Limitation

The "P-WMod" parameter is used to set the procedure for limiting active power. If you need help with this, please contact the Sunny Central Service.

Proceed as follows:

1. Select "Device Set-up > Parameters > Red.effect.pow. > P-WMod".

☑The line below "P-WMod" starts to blink.

2. Select the required procedure for limiting active power with the [ ↓ ] button. The following procedures can be selected:

Procedure Description

off Active power is limited to the device nominal power "Pmax". WCtlCom The active power limit is received by the external control unit

(e.g. Power Reducer Box) and transmitted to the Sunny Central via communication.

WCnst The "P-W" parameter is set in kW via the communication

(e.g. Sunny WebBox).

WCnstNom The "P-WNom" parameter is set as a percentage via the

communication (e.g. Sunny WebBox).

WCnstNomAnIn The active power limitation is set via a signal at the analog input

ExtSolP. The analog value is converted to a setpoint for power limitation.

3. Press [ENTER] twice to confirm the procedure.

☑ The required procedure for active power limitation has now been set.

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Procedure "WCnstNomAnIn"

If you have selected the procedure "WCnstNomAnIn", you must connect a signal to the analog input "ExtSolP" of the Sunny Central. The strength of the connected signal current determines the nominal active power in percent.

Current Nominal active power

4 mA 0 %

8.5 mA 30 %

11.5 mA 50 % 13 mA 60 % 19 mA 100 %

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P-HzStop

Frq

Pac

P-WGra

P-HzStr

10.2 Active Power Limitation via Grid Frequency

The downward regulation of active power via the grid frequency is based on the available power at the start time of the downward regulation. If the grid frequency exceeds a certain threshold defined by you (P-HzStr), for example 50.2 Hz, the Sunny Central saves the feed-in power value at that moment in time. Depending on grid frequency, the saved value defines the power limit. The gradient of the limit can be set via the P-WGra parameter (standard = 40 %). Should the grid frequency drop, the last power limit reached remains in effect. Increasing the feed-in power is only permissible when grid frequency drops below, for example, 50.05 Hz (P-HzStop).

Example:

A Sunny Central with 500 kW capacity is currently feeding 350 kW (P frequency rises to 51.2 Hz. From the difference between the current grid frequency and P-HzStr (51.2 Hz - 50.2 Hz) multiplied by the gradient P-WGra (40 %) we arrive at a reduction of active power by 40 % of the last available power P

(350 kW). This results in a power limitation of

mom

140 kW and a maximum active power of 210 kW. Formula: P P

= limit power

Grenz

= current power

mom

Grenz

= P

mom

– ( ( (f

– P-HzStr) / Hz) * P-WGra * P

Netz

) into the public grid. The

mom

)

mom

Calculation for this example:

210 kW = 350 kW – ( (51.2 – 50.2) * 40 % * 350 kW )

Deactivating active power limitation via grid frequency

If you wish to deactivate the active power limitation via grid frequency, please contact Sunny Central Service.

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Grid Monitoring SMA Solar Technology AG

11 Grid Monitoring

The Sunny Central monitors the energy supply grid for breaches of adjustable upper or lower limit values. If the upper or lower limit values are breached for a relevant adjustable time, the Sunny Central disconnects itself from the grid for security reasons.

The following limit values are monitored:

• Voltage decrease protection U< and U<<

• Voltage increase protection U> and U>>

• Frequency decrease protection f<, f<< and f<<<

• Frequency increase protection f> and f>>

For each limit value, you can set a trigger delay time, for the duration of which the grid fault must be present before the Sunny Central disconnects from the grid.

Thus, for example, at an overfrequency of 50.5 Hz triggering can be set to take place after 1 second, and at an overfrequency of 51.5 Hz after only 0.1 seconds.

You can preset the limit values and the triggering time manually. For voltage monitoring, it is possible to set two limits each for overvoltage and undervoltage. For frequency monitoring, you can set 2 upper limits and 3 lower limits.

11.1 Grid Connection after Fault Clearance

After clearance of a grid fault, reconnection can only occur once the grid voltage has returned to within the set connection limits: (e.g. VCtlOpMinNom) for the duration of the grid monitoring time (GriGrdMonTm).

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11.2 Behavior of Grid Limits over Time when Breaches Occur

Object Description

A Delay time for grid limit Level 2 B Delay time for grid limit Level 1 C Start up / MPP load operation DGrid Monitoring E Failure 1Grid limit Level 2 2Grid limit Level 1 3 Connection limit 4Grid limit Level 1 is breached, timer starts 5Grid limit Level 2 is breached, timer starts 6 Grid limit level 2 for delay time level 2 is breached → grid disconnection 7 Grid limit Level 1 for delay time Level 1 is breached → grid disconnection

(the grid has already disconnected at Level 2) 8 Connection conditions fulfilled → monitoring time starts 9 Grid within valid range during monitoring time → grid connection

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11.3 Setting the Medium-Voltage Level (applicable only to HE devices)

You can set the medium-voltage level for display and grid monitoring. You can set the grid voltage to the appropriate value via the parameter "VRtg". The default value of the parameter "VRtg" is 20 kV. It is important to adjust the transmission ratio of the external medium-voltage transformer at the same time. To do this, you only have to adjust the high-voltage side via the parameter "TrfVolExlHi". The value must equal the value of the parameter "VRtg". The low-voltage side is preset according to the specific device.

Important: you must always set the phase conductor voltages.

11.4 Disconnection Protection Ramp (DCRmp)

After a grid failure the Sunny Central slowly starts up again, with a disconnection protection ramp of max. 10 % of the nominal power per minute. You have the option of switching this disconnection protection ramp on or off. For Germany, the disconnection protection ramp is standardly switched on. If you switch the disconnection protection ramp off, the Sunny Central runs up to maximum output in the shortest time possible.

Activating/deactivating the disconnection protection ramp

If you wish to activate or deactivate the disconnection protection ramp, please consult the Sunny Central Service.

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12 External Grid Monitoring Relay (optional)

All Sunny Central inverters with an integrated transformer use an external grid monitoring relay to monitor the connected grid. This relay detects and signals breaches of the grid limits and transmits a fault signal to the Sunny Central. Devices without an integrated transformer can optionally be fitted with this relay.

If a grid monitoring relay is fitted, the grid limits in the Sunny Central software are expanded and thus deactivated. In this case, grid monitoring takes place via the external grid monitoring relay.

The parameters for the grid limits are then set directly at the grid monitoring relay. The following illustration shows the position of the grid monitoring relay, based on the example of a

Sunny Central 250HE.

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12.1 Overview of the Display and Control Elements

Object Name Function

A Wye (Y) Display of wye (star) voltages (phase conductor - neutral

conductor) B Delta (Δ) Display of delta voltages C DPC slot Configuration port D Potentiometer Set LCD contrast E LCD 2-line LC display FClear

Cursor →

GMenu

Digit ↑

HDisplay↓

Select I Alarm An alarm has occurred K Operating Auto mode

Clear alarm signal Move one position to the right Selecting a Menu Increase selected number Scroll through display line Confirm selection

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12.2 Display Messages

Performance values can be monitored from the two-line display, provided that the grid monitoring relay is in automatic mode. In the configuration mode, the individual parameters are displayed.

Display in auto mode, top line: measured values

By means of the "Display ↓ " button you can scroll through the first line of the display.

Display Description

The "star" LED is on and the "triangle" LED is off. The wye (star) voltages (U

four-wire system are displayed.

The "star" LED is off and the "triangle" LED is on. The phase conductor voltages

, U

L2-L3

and U

L3-L1

L1-L2

displayed.

Display in auto mode, bottom line: measured values

By means of the „Menu“ button you can scroll through the second line of the display.

Display Description

In the bottom line the frequency [Hz] is displayed.

, U

L1-N

L2-N

and U

L3-N

) of the

) of the three-wire system are

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12.3 Configuration

You may only carry out configuration when the Sunny Central is not in operation.

12.3.1 Changing from Automatic Mode to Configuration Mode

Configuration mode "Select"

By pressing the "Select" button, you will activate the input mode and be able to view the following screens and to make adjustments within the specified limits. Each time you press "Select", you will scroll down one of the screens below. If you have configured a parameter to "OFF", the relevant screen will not be displayed and you cannot process it. By pressing "Select" you can switch the display to the next parameter.

Software version

Select language German / English

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12.3.2 Access to Configuration

Password protection

You will need a password to carry out any parameter settings / adjustments. Once you have entered this password, you can view and adjust all parameters.

The factory setting for the password is <4753>. You are free to change the password as desired. Keep the password safe to prevent any

unauthorized parameter adjustments.

DANGER!

Danger to life through changing the internal safety specifications of the Sunny Central.

• Only qualified electricians may carry out parameter adjustments.

• Only adjust parameters after consultation with the SMA Serviceline.

Enter Password

Enter code number 0000 - 9999

Input screen for the password

Password Protection ON / OFF

ON = Password protection is activated. OFF = Password protection is deactivated.

Change password

Define password for code level 1

The password is preset to: CS1 = 0001

Define password for code level 2

The password is preset to: CS2 = 4753

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12.3.3 Parameters

Voltage measurement

Four-wire system / three-wire system

Do not change

Voltage transformer configuration

Voltage transformer secondary

Device-specific presetting, do not change.

Adjust the setting for the primary voltage transformer to the medium-voltage value to match your system. This setting has no effect on monitoring, but only on the display of voltage readings.

Voltage transformer primary

For Sunny Central devices without an integrated transformer, enter the voltage of the medium-voltage side (e.g. 20 kV).

For Sunny Central devices with an integrated transformer, this parameter is preset according to the specific device and the setting must not be

changed.

12.3.4 Monitoring

Monitoring for...

Three-wire / four-wire system; default for Sunny Central with integrated transformer: four-wire system; default for Sunny Central without integrated transformer: three-wire system

Do not change

This parameter is masked out as soon as you have set the "voltage measurement" parameter to threewire system.

When setting the voltage thresholds please note the following:

• Sunny Central with integrated transformer: set the threshold values as absolute values in volts, corresponding to those present at the grid connection.

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• Sunny Central with external medium-voltage transformer: set the values in volts. Set the relative value as a percentage of nominal voltage (105 V are equivalent to 105 % of nominal voltage).

• Frequency thresholds are always set as absolute values in Hertz.

Example:

If a system with 20 kV / 100 V has an overvoltage threshold of 115 V (115 %) and a hysteresis of 5 V (5%), the monitored voltage must fall below 110 V (110 %) in order that the alarm be reset.

Overvoltage Monitoring ON / OFF

ON = Overvoltage monitoring is activated. The following parameters of this function will be displayed.

OFF = Overvoltage monitoring is deactivated The following parameters of this function will not be displayed.

Parameters for "3-wire system": Threshold value for triggering at overvoltage in Level 1

Delay time for threshold value at overvoltage in Level 1

Parameters for "3-wire system": Threshold value for triggering at overvoltage in Level 2

Delay time for threshold value at overvoltage in Level 2

Hysteresis for the overvoltage monitoring; this must be exceeded before any reconnection is possible.

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Undervoltage monitoring ON / OFF

ON = Undervoltage monitoring is activated. The following parameters of this function will be displayed.

OFF = Undervoltage monitoring is deactivated The following parameters of this function will not be displayed.

Parameters for "3-wire system": Threshold value for triggering at undervoltage in

Level 1

Delay time for threshold value at undervoltage in Level 1

Parameters for "3-wire system": Threshold value for triggering at undervoltage in

Level 2

Delay time for threshold value at undervoltage in Level 2

Hysteresis for the undervoltage monitoring; this must be exceeded before any reconnection is possible.

Voltage assymetry monitoring not supported

Overfrequency Monitoring ON / OFF

ON = Overfrequency monitoring is activated. The following parameters of this function will be displayed.

OFF = Overfrequency monitoring is deactivated. The following parameters of this function will not be displayed.

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Threshold value for triggering at overfrequency in Level 1

Delay time for threshold value at overfrequency in Level 1

Threshold value for triggering at overfrequency in Level 2

Delay time for threshold value at overfrequency in Level 2

Hysteresis for the overfrequency monitoring; this must be exceeded before any reconnection is possible.

Underfrequency Monitoring ON / OFF

ON = Underfrequency monitoring is activated. The following parameters of this function will be displayed.

OFF = Underfrequency monitoring is deactivated. The following parameters of this function will not be displayed.

Threshold value for triggering at underfrequency in Level 1

Delay time for threshold value at underfrequency in Level 1

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Threshold value for triggering at underfrequency in Level 2

Delay time for threshold value at underfrequency in Level 2

Hysteresis for the underfrequency monitoring; this must be exceeded before any reconnection is possible.

not supported

Factory setting is "On" If you set the parameter to "Off", there will be no automatic reset and after a grid failure the Sunny Central will remain permanently in the alarm state.

Delay time for automatic reset of relay outputs after error message Configurable for the following types of monitoring.

Monitoring for Display message instead

Comment

of XXXXXXXX

Overvoltage Overvolt. Overvoltage, Levels 1 and 2 Undervoltage Und.volt. Undervoltage, Levels 1 and 2 Overfrequency Overfreq. Overfrequency, Levels 1 and 2 Underfrequency Underfrq. Underfrequency, Levels 1 and 2

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With this parameter you can set the display error message to reset automatically after the error has been indicated.

Delay time for reset of display message after error signal

Change relay allocation YES / NO Device-specific presetting, do not change

Assign protection functions to relays 0 to 3

Device-specific presetting, do not change

Function of relays 1, 2 and 3

Preset, do not change

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12.4 Alarm Messages / Dealing with Errors

Depending on the cause of the error, various error messages will appear on the display. By means of the „Menu“ button you can scroll through the alarm messages.

Alarm text Description

Overvolt. 1 The threshold value for Level 1 of overvoltage

monitoring has been exceeded.

Overvolt. 2 The threshold value for Level 2 of overvoltage

monitoring has been exceeded.

Und.volt. 1 The threshold value for Level 1 of undervoltage

monitoring has been exceeded.

Und.volt. 2 The threshold value for Level 2 of undervoltage

monitoring has been exceeded.

Overfreq. 1 The threshold value for Level 1 of overfrequency

monitoring has been exceeded.

Overfreq. 2 The threshold value for Level 2 of overfrequency

monitoring has been exceeded.

Un d.f req . 1 T he t hre sho ld value for Lev el 1 of u nde rfr equ enc y

monitoring has been exceeded.

Un d.f req . 2 T he t hre sho ld value for Lev el 2 of u nde rfr equ enc y

monitoring has been exceeded.

12.4.1 Clear Alarm Signal

The grid monitoring relay signals an error / alarm via the "Alarm" LED. You can clear the alarm signal by pressing the "Clear" button. We distinguish between the following

error states:

• Error still present: As long as the error is still present it cannot be cleared. The blinking "Alarm" LED on the control

panel indicates that the alarm state is still active.

• Error no longer present: Once the current error has been remedied, the "Alarm" LED changes from blinking to

continuously lit. The relay is configured such that the error message is automatically reset after the error has been signalled and the reset time has elapsed.

12.4.2 Interface

A configuration interface is available for configuring the relay via a PC: To do this you need a special interface cable (DPC) and software. You can find further information in the relay manual. This is supplied with the Sunny Central on a CD-ROM or you can find it on the internet under www.woodward.com.

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SMA Solar Technology AG Islanding Detection (Anti-Islanding)

13 Islanding Detection (Anti-Islanding)

In cases of grid failure the grid voltage drops. The Sunny Central detects this via grid monitoring and switches off. In unfavorable circumstances there is the possibility that the Sunny Central is feeding the grid with a certain output, for example 100 kW, while at the same time there is 100 kW load running on the same grid branch. In this case, an island grid will be formed and the Sunny Central will supply the 100 kW load. Here, the Sunny Central will measure its own voltage and, finding it equal to the grid voltage, will not immediately disconnect from the grid. However, if the anti-islanding (island detection) function is activated, the Sunny Central will detect the formation of an island grid and disconnect from the grid within a few seconds.

DANGER!

Danger to life due to high voltages in the case of presumed disconnection from the grid. Death or serious burns.

In a case such as that described above, voltage will still be present despite presumed disconnection from the grid.

• SMA Solar Technology recommends activating the "Anti-islanding" option.

• Contact the Sunny Central Service if you wish to have the "Anti-islanding" option activated.

• Always makes sure there is no voltage present before working on the Sunny Central or the grid.

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Sunny Team (optional) SMA Solar Technology AG

14 Sunny Team (optional)

You have the option of operating two Sunny Centrals with identical nominal power as a Sunny Team. Sunny Team is a circuit with a DC contactor which connects the two Sunny Centrals electrically. In case of low solar radiation the DC contactor closes and the two Sunny Centrals (manager and team member) are connected in parallel on the DC side. One Sunny Central converts the power of the entire system and feeds it into the public grid. The team manager and the team member take turns to feed into the grid. The team manager feeds into the grid on even-numbered days and the team member on odd-numbered days. While one Sunny Central is feeding into the grid, the other changes to "Wait" mode.

Requirements for team operation:

• 2 Sunny Centrals with the same nominal power

• 2 Sunny Centrals are equipped with Sunny Team

• Same number of PV modules per string

• PV modules of the same type

• PV modules with identical vertical and horizontal arrangement

The connection of the team cabling and the installation of team systems is described in the Sunny Central installation guide.

Manager device

The manager device is responsible for the operational control of the team and insulation monitoring of the entire syst em. In case s of low solar ra diatio n, the mana ger device specifies which team member should feed the entire system power into the grid, and which team member should switch to "Wait" mode.

Team device (team member)

In team operation, the insulation monitoring system of the team member is in “Standby” mode. Two insulation monitoring systems cannot operate simultaneously, as the two devices would interfere with each other.

14.1 Identification of Manager Device and Team Device

The type label includes a version key which specifies whether the Sunny Central is the manager or the team device. You can identify the Sunny Central's team function by comparing the version key on the type label with the explanation of the version key in the wiring diagram.

14.2 Display of Team Mode on the Sunny Central

In team mode, the indicator light for team operation is lit on both Sunny Centrals. The DC contactor is closed, one Sunny Central feeds the entire system power into the public grid.

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14.3 Operating States of Sunny Team

During normal daily operation, the Sunny Team goes through four phases. These 4 phases are described below.

Phase Explanation

In the morning Vpv > VpvStart - 50 V: The DC contactor closes. The system

changes to team mode. The Sunny Centrals are factory preset for alternating grid feed. The team manager feeds into the grid on even-numbered days and the team member on odd-numbered days. The Sunny Central designated for grid feed goes into operation as soon as the start requirements are fulfilled, and feeds the entire system power into the public grid.

80 % of AC nominal power exceeded

Power drops below 20 % of "Pac smoothed".

In the evening Open-circuit voltage of the grid-feeding Sunny Central for

AC nominal power > P-Next Team (default setting 80 %): The DC contactor opens. The two Sunny Centrals now work separately. Bo th S unny Ce ntr als are in op era tion, co nve rting th e power o f their PV generator and feeding it into the public grid.

Pac smoothed < P-Prev Team (default setting 20 %): the DC contactor closes. The system switches to Team mode. The team manager determines which Sunny Central is to convert the energy and feed into the grid. The grid-feeding Sunny Central feeds the entire system power into the public grid.

30 minutes < Vpvmin - 100 V: the DC contactor opens. The Sunny Ce ntr als are d isconne cte d from ea ch other . This st ate is maint ained until the following morning.

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Sunny Team (optional) SMA Solar Technology AG

14.4 Team Status

You can call up the status of the Sunny Team in Sunny Central Control under "Spot values > Other > Team status".

Description of team status

Status German Status English Description

Deaktiviert Deactivated Team mode is now deactivated. Init Init Initializing team mode. Stop Stop Team mode is stopped. Warten Wait The Sunny Central is waiting for sufficient solar

radiation to go into operation mode.

Warte gekoppelt Wait Linked The Sunny Centrals are linked. The Sunny Central

is not feeding into the grid.

Einsp.gekoppelt Feed Linked The Sunny Centrals are linked. The Sunny Central

is feeding the entire system power into the public grid.

Unabh. Einsp. Feed SingleMode The Sunny Centrals are not linked. They are

feeding into the grid independently of each other.

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14.5 Team Mode Interrupted

An interruption of team operation can have various causes. These will be described in this section.

Key switch set to "STOP"

If one of the two Sunny Centrals is switched off, team operation is not possible. The Sunny Centrals connect individually to the grid.

Emergency shut-off switch actuated

Depending on the wiring option, the emergency shut-off switches of the Sunny Centrals in team operation are either interconnected or not interconnected. SMA Solar Technology recommends connecting the emergency shut-off switches of both Sunny Centrals in the team.

• Emergency shut-off switches electrically interconnected: – Both Sunny Centrals change to "Emergency shut-off" mode. Neither grid feed nor team

operation is possible.

• Emergency shut-off switches not interconnected, no team operation. – The Sunny Central with the emergency shut-off switch actuated switches to "Emergency shut-

off" mode.

– If th e se con d Su nny Cen tra l is the tea m ma nag er, it w ill l re main in its current operating mode.

Team operation is not possible.

• Emergency shut-off switches not interconnected, team operation. – The Sunny Central with the emergency shut-off switch actuated switches to "Emergency shut-

off" mode.

– The second Sunny Central is the team manager and was in "Wait" mode. It feeds the energy

from its PV generator into the public grid. Team operation is not possible.

– The second Sunny Central is the team manager and was not in "Wait" mode. Neither grid

feed nor team operation is possible.

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Failure of a Sunny Central

If a fault occurs in a Sunny Central, team operation is immediately interrupted and the DC contactor opens. The Sunny Centrals operate separately until the error is cleared. If a failure is present for more than 60 minutes, team operation is possible under the following conditions:

• Communication system is running.

• DC contactor works.

• Sunny Central is switched on with the key switch.

Team operation is not possible if one of the following faults is present:

• Failure 201: ground fault or overtemperature.

• Failure 206: Emergency shut-off Emergency shut-off actuated.

If these requirements are fulfilled, the Sunny Central not displaying the failure will feed the entire system power into the public grid.

14.6 Disable Team Mode

If you do not want to run the two Sunny Centrals in team operation, you can disable the team mode. The team mode must be deactivated on both the Sunny Centrals in the team.

Proceed as follows:

1. Enter the password as described in Section 5.6”Enter Password” (page27).

2. Select "Device Set-up > Parameters > Others > Team function".

☑The line below "Team function" starts to blink.

3. Note the Sunny Central's current function in the team. Retain this note in case the team mode needs to be reactivated.

4. Select "deactivated" with the [ ↓ ] button.

5. Press [ENTER]. ☑ Team mode is now deactivated.

6. Disable team mode in the second Sunny Central.

☑ Team mode in both Sunny Centrals is now deactivated.

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14.7 Enable Team Mode

If you wish to revert to team operation of the two Sunny Centrals, you can re-enable team mode. The team mode must be activated at both the Sunny Centrals in the team.

Proceed as follows:

1. Enter the password as described in Section 5.6”Enter Password” (page27).

2. Select "Device Set-up > Parameters > Others > Team function".

☑The line below "Team function" starts to blink.

3. With the [ ↓ ] button assign the previously noted team function of the Sunny Central. This must be identical with the function prior to deactivation.

Function of the Sunny Central in the Team

If you did not note the Sunny Central's function within the team, you can identify this function as described in Section 14.1”Identification of Manager Device and Team Device” (page74).

4. Press [ENTER]. ☑ Team mode is now enabled.

5. Enable team mode in the second Sunny Central.

☑ Team mode in both Sunny Centrals is now enabled.

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15 Troubleshooting and Problem Solving

DANGER!

Danger to life due to high voltages in the Sunny Central! Death or serious burns.

Even in cases of failure, the Sunny Central can retain high voltages.

• Only qualified technical personnel may perform any of the work described in this section. “Qualified” means that the personnel must possess training relevant to the activity performed.

• Work on the Sunny Central must only be carried out as described in this manual.

• Comply with all the listed safety instructions.

• All the safety instructions in the Sunny Central installation guide must be observed.

• If the fault cannot be rectified with the help of this manual, contact SMA Solar Technology immediately.

If a fault occurs during operation, the Sunny Central will shut down and the fault will be displayed by the Sunny Central Control.

If several faults or warnings are present, the Sunny Central Control displays the fault which has the highest priority. It alternates between the standard view and the fault message.

A fault appears in the display as follows:

Marker Description

A Fault or warning number B Reason for the fault or warning in plain text

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15.1 Fault Diagnosis

15.1.1 Categories of Faults and Warnings

The fault and warning numbers are allocated to different areas:

Number Area

100 to 179 Grid faults 180 to 199 Grid warnings 200 to 279 Sunny Central hardware faults 280 to 299 Sunny Central hardware warnings 300 to 379 Sunny String-Monitor faults 380 to 399 Sunny String-Monitor warnings 400 to 479 Power unit hardware faults 480 to 499 Power unit hardware warnings 500 to 579 Team failures 280 to 599 Team warnings 600 to 699 External warnings

15.1.2 Types of Faults and Warnings

The Sunny Central faults and warnings are subdivided into four types:

Type Description

Error type 1 (Warning) The Sunny Central does not switch off. Once the error is no longer

present, the error signal is reset automatically. Check the system.

Error type 2 (Fault) The Sunny Central switches off. Once the error is no longer

present, the error signal is reset automatically, and the Sunny Central starts up again.

Error type 3 (Fault) The Sunny Central switches off. Error type 3 can only arise if the

Sunny Central is in grid feed operation when an error occurs. Once the error is no longer present, the error signal is reset automatically, and the Sunny Central starts up again.

Error type 4 (Fault) Error type 4 must be cleared before the Sunny Central can resume

operation. The Sunny Central switches off. Rectify the cause of the error, and

clear the error at Sunny Central Control, or with Sunny Data Control. Once you have cleared the error, the Sunny Central resumes operation.

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15.1.3 Warnings

No. Description

281 Error text:

Ground fault or SPD defect

Cause of error:

The alert chain is interrupted (see wiring diagram).

• Surge voltage protector damaged.

• Back-up fuse(s) damaged on the grid side or generator side (if present).

• The insulation resistance of the PV system is lower than the set threshold value.

• The biasing circuit breaker of the transformer has tripped.

• One of the redundant power supply units is defective.

Corrective measures:

• Check fault signaling of the surge voltage protectors and replace them if necessary.

• Check protector back-up fuse(s), and replace if necessary.

• Check PV system's insulation resistance.

• In the event of an insulation fault, check strings under load-free conditions. Separate and connect individual strings to determine which string is faulty.

• Check the function of the ground fault monitoring system.

• Switch the biasing circuit breaker of the transformer back on.

• Check the LEDs on the power supply unit and the monitoring module.

• Contact Sunny Central Service.

283 Error text:

cabinet Temp.

Cause of error:

The threshold value (parameter TMin or TMax) for the permissible cabinet temperature has been breached (too high or too low).

Corrective measures:

• Check function of cabinet cooling fans.

• Clean or replace clogged air filters.

• Check ambient temperature, and adjust it if necessary.

284 Error text:

Temperature sensor

Cause of error:

External or internal temperature sensor is defective.

Corrective measure:

•Check sensors.

Error type 1

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No. Description 380 Error text:

Error type 1

SMU

Cause of error:

The string monitoring system has detected one or more faulty strings or surge voltage protectors.

Corrective measures:

•Under "Device Set-up > SMUs > Devices > Measured Values", read out the individual string currents to locate the faulty string.

• More detailed information can be found in the Sunny String-Monitor manual.

381 Error text:

Error type 1

ser. com. with SMU disturbed

Cause of error:

Communication failure between Sunny Central and the Sunny String-Monitors.

Corrective measures:

• Check communication lines and connections.

• More detailed information can be found in the Sunny String-Monitor manual.

382 Error text:

Error type 1

thievery solar panel

Cause of error:

Signal loop for theft detection at the Sunny String-Monitor has been interrupted.

Corrective measures:

• Check string currents.

• Check signal loop.

• For further details, refer to the installation guide and user manual of the Sunny StringMonitor and / or Sunny String-Monitor Cabinet.

585 Error text:

Error type 1

ser. com. with team disturbed

Cause of error:

The communication between the two team inverters has failed.

Corrective measures:

• Check the RS485 wiring for team communication.

• Check power supply of the team member.

• Check team parameters at both Sunny Centrals.

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No. Description 586 Error text:

Error type 1

Team contactor remain opened

Cause of error:

The team contactor does not trigger.

Corrective measures:

• Check the triggering of the team contactor.

• Check the feedback contact of the isolation contactor.

• Check whether the team current monitoring system has tripped.

587 Error text:

Error type 1

Team contactor remain closed

Cause of error:

The team contactor has not switched off. The switching contacts may have got stuck.

Corrective measures:

• Check the triggering of the team contactor.

• Check the contact position of the team contactor.

• Contact Sunny Central Service.

588 Error text:

Error type 1

Team contactor was opened

Cause of error:

The team contactor has been switched off by the team current monitoring system.

Corrective measures:

• Check the triggering of the team contactor.

• Check the team current monitoring system (settings, fault).

• Check the team current; it may be too high due to asymmetrical current distribution.

• Contact Sunny Central Service.

601 Error text:

Error type 1

Defective default Effective power

Cause of error:

The current value at the analog input is not within the permissible range.

Corrective measures:

• Check the analog input.

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No. Description 602 Error text:

Error type 1

Defective default Reactive power

Cause of error:

The current value at the analog input is not within the permissible range.

Corrective measures:

• Check the analog input.

603 Error text:

Error type 1

Disturbed communication Effective power

Cause of error:

The setpoint signal at the communication level is faulty.

Corrective measures:

• Check the communication route.

604 Error text:

Error type 1

Disturbed communication Reactive power

Cause of error:

The setpoint signal at the communication level is faulty.

Corrective measures:

• Check the communication route.

680 Error text:

Error type 1

External Alarm was initiated

Cause of error:

Dependent on the monitored unit.

Corrective measures:

Check the unit connected to the external alarm input.

681 Error text:

Error type 1

Reduction of effective power activated

Description:

The Sunny Central is currently reducing active power by means of an external setpoint.

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15.1.4 Faults

No. Description

104 Error text:

No Grid Synchronization

Cause of error:

Left-hand rotating field or internal device fault.

Corrective measures:

• Check (right-hand) rotating field.

• Check whether all internal fuses are switched on.

• Contact the SMA Serviceline.

105 Error text:

Grid voltage to low

Cause of error:

Voltage on the AC side is below the permitted range.

Corrective measures:

• Check the grid connections.

• Check grid stability.

106 Error text:

Grid voltage to high

Cause of error:

Voltage on the AC side is above the permitted range.

Corrective measures:

• Check the grid connections.

• Check grid stability.

110 Error text:

UVW-Range

Cause of error:

Voltage on phase L1, L2, or L3 outside the permitted range.

Corrective measures:

• Check the grid connections.

• Check grid stability.

Error type 3

Error type 2

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No. Description 111 Error text:

Error type 2

Grid frequency to high or to low

Cause of error:

Grid limits breached.

Corrective measures:

• Check the display of the grid monitoring relay.

• Check the fuses in the load circuit.

112 Error text:

Error type 2

External Grid Monitoring triggered

Cause of error:

Voltage or frequency on the AC side is outside the permitted range.

Corrective measures:

• Check the grid connections.

• Check grid stability.

• Check right-hand rotating field.

201 Error text:

Error type 2

Ground fault or Overtemperature

Cause of error:

• The overtemperature fault chain is interrupted (see wiring diagram).

• Switch cabinet overtemperature

• Transformer overtemperature

• Diode overtemperature

• The insulation resistance of the PV system is lower than the set threshold value.

• GFDI tripped

Corrective measures:

• Check function of cooling fans.

• Clean or replace clogged air filters.

• Ambient or cooling air temperature too high.

• Check insulation resistance of PV generator.

• In the event of an insulation fault, separate and connect individual strings to detect the faulty one.

• Check the function of the ground fault monitoring system.

• Check GFDI (see additional documentation in the download area at www.SMA.de/en).

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No. Description 206 Error text:

Error type 4

Emergency shutdown activated

Cause of error:

Inverter's own emergency shut-off has been pressed.

Corrective measures:

Deactivate the emergency shut-off and clear the fault as described in Section

15.2”Clearing Errors” (page93).

209 Error text:

Error type 4

DC Short circuit

Cause of error:

An int ern al s hor t ci rcu it i n th e inverter has been detected on the D C si de. The DC m ain swi tch has been switched off.

Corrective measures:

• Check the Sunny Central from the outside.

• If possible, the Sunny Central should be externally isolated.

• Contact the SMA Serviceline.

215 Error text:

Error type 2

heat sink fan fault

Cause of error:

• Motor overload switch for the fan(s) cooling the power module has tripped.

• Overtemperature protection for the fan(s) cooling the power module has tripped.

• Ambient or cooling air temperatures too high.

Corrective measures:

• Switch the motor overload switch back on.

• Check function of cooling fans.

• Clean soiled air inlet or heat sink.

• If this error occurs frequently, contact the SMA Serviceline.

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No. Description 217 Error text:

Error type 2

DC CB tripped or door switch open

Cause of error:

• The cabinet door was opened during operation.

• The DC circuit breaker has tripped due to an internal fault.

• The reverse current monitoring system on the DC side has tripped.

Corrective measures:

• Close the cabinet doors.

• Check the function of the door switches.

• Check the function and activation of the emergency shut-off relay.

• Check reverse current monitoring.

• Contact the SMA Serviceline.

220 Error text:

Error type 2

Release- or Reset-Signal faulty

Cause of error:

The inverter bridge release or clearance signal is defective.

Corrective measures:

If this is a permanent error, please contact the SMA Serviceline.

221 Error text:

Error type 3

CHOPPER Overtemperature

Cause of error:

• EVR resistor overtemperature.

• Defective chopper module.

• After 90 minutes, the inverter will attempt to restart.

Corrective measures:

• Check resistor for dirt.

• Make sure resistor is sufficiently ventilated.

• Contact the SMA Serviceline.

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No. Description 222 Error text:

Error type 2

Ambient temperature

Cause of error:

The ambient temperature is higher than 51 °C.

Corrective measure:

• Check the cooling concept.

• Check the fans.

• Check the ambient conditions.

• Check the sensor.

400 Error text:

internal failure of inverter bridge

Error type 2/3

Cause of error:

Internal inverter bridge fault (e.g. symmetry fault, board voltage, undertemperature, sensor broken).

Corrective measures:

If this error occurs frequently, contact the SMA Serviceline.

402 Error text:

Error type 2

ser. com. with inverter bridge disturbed

Cause of error:

• T he R S48 5 commun ica tio n betwee n th e in verter b rid ge and th e Su nny Central Control is interrupted.

• The inverter bridge or the Sunny Central Control may be faulty.

Corrective measures:

• Check the RS485 wiring.

• If this is a permanent error, please contact the SMA Serviceline.

408 Error text:

Error type 3

PV Overvoltage

Cause of error:

DC voltage is too high on the generator side.

Corrective measures:

• Immediately disconnect the PV generator from the Sunny Central! Danger of damage to the Sunny Central!

•Check DC voltage.

• Check module wiring and system design.

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No. Description 409 Error text:

Error type 3

IGBT Stack Temperature

Cause of error:

Heat sink temperature is too high (software).

Corrective measures:

• Check that the cooling fans of the inverter bridge are working properly.

• Clean soiled air inlet or heat sink.

• Ambient or cooling air temperature too high.

• If this error occurs frequently, contact the SMA Serviceline.

410 Error text:

Error type 3

IGBT Stack Error Sum

Cause of error:

Internal inverter bridge fault (e.g. DC overvoltage, overtemperature, defective driver, overcurrent).

Corrective measures:

If this error occurs frequently, contact the SMA Serviceline.

411 Error text:

Error type 3

IGBT-Overcurrent or UVW-Phase Error ADAPSCP

Cause of error:

Internal inverter bridge fault.

Corrective measures:

If this error occurs frequently, contact the SMA Serviceline.

412 Error text:

Error type 3

Overcurrent

Cause of error:

Internal inverter bridge fault.

Corrective measures:

If this error occurs frequently, contact the SMA Serviceline.

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No. Description 420 Error text:

Error type 3

ADAPSCP Overtemperature

Cause of error:

Heat sink temperature is too high (hardware threshold)

Corrective measures:

• Check that the cooling fans of the inverter bridge are working properly.

• Clean soiled air inlet or heat sink.

• Ambient or cooling air temperature too high.

• If this error occurs frequently, contact the SMA Serviceline.

421 Error text:

Error type 2

ADAPSCP Overvoltage DC Voltage link

Cause of error:

DC voltage is too high on the generator side (hardware threshold).

Corrective measures:

• Immediately disconnect the PV generator from the Sunny Central! Danger of damage to the Sunny Central!

•Check DC voltage.

• Check module wiring and system design.

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15.1.5 Events

Event Explanation

> LVRT LVRT (Low Voltage Ride Through) is activated > Netz-Parameter Adjusting the grid parameters > NSM Power limitation via NSM (grid security management) activated < NSM Power limitation via NSM (grid security management) deactivated > FRQ-Derating Power limitation via frequency activated < FRQ-Derating Power limitation via frequency deactivated

15.2 Clearing Errors

1. Rectify the cause of the error.

2. Select "

Operating data > Faults > Current Faults

Active fault or warning

If a fault or warning is present, it is displayed with the date and time of its occurrence.

3. Press [ENTER]. ☑ The display begins to blink.

4. Press [ ↓ ] once. ☑The word "quit" appears in the display.

5. To quit the error, press [ENTER] twice.

☑ The error is now cleared. The message shown on

the right appears in the display.

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Contact SMA Solar Technology AG

16 Contact

If you have technical problems concerning our products, please contact the SMA Serviceline. We require the following information in order to provide you with the necessary assistance:

• Type of Sunny Central

• Sunny Central serial number

• Type and number of the connected modules

•Communication type

• Fault or warning number displayed

• Display message in Sunny Central Control

SMA Solar Technology AG

Sonnenallee 1 34266 Niestetal, Germany Tel. +49 561 9522 299 Fax +49 561 9522 3299 SunnyCentral.Service@SMA.de www.SMA.de

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SMA Solar Technology AG Legal Restrictions

The information contained in this document is the property of SMA Solar Technology AG. Publishing its content, either partially or in full, requires the written permission of SMA Solar Technology AG. Any internal company copying of the document for the purposes of evaluating the product or its correct implementation is allowed and does not require permission.

Exclusion of liability

The general terms and conditions of delivery of SMA Solar Technology AG shall apply. The content of these documents is continually checked and amended, where necessary. However, discrepancies cannot be

excluded. No guarantee is made for the completeness of these documents. The latest version is available online at www.SMA.de or from the usual sales channels.

Guarantee or liability claims for damages of any kind are excluded if they are caused by one or more of the following:

• Damages during transportation

• Improper or inappropriate use of the product

• Operating the product in an unintended environment

• Operating the product whilst ignoring relevant, statutory safety regulations in the deployment location

• Ignoring safety warnings and instructions contained in all documents relevant to the product

• Operating the product under incorrect safety or protection conditions

• Altering the product or supplied software without authority

• The product malfunctions due to operating attached or neighboring devices beyond statutory limit values

• In case of unforeseen calamity or force majeure The use of supplied software produced by SMA Solar Technology AG is subject to the following conditions:

• SMA Solar Technology AG rejects any liability for direct or indirect damages arising from the use of software developed by SMA Solar Technology AG. This also applies to the provision or non-provision of support activities.

• Supplied software not developed by SMA Solar Technology AG is subject to the respective licensing and liability agreements of the manufacturer.

SMA Factory Warranty

The current guarantee conditions come enclosed with your device. These are also available online at www.SMA.de and can be downloaded or are available on paper from the usual sales channels if required.

Trademarks

All trademarks are recognized even if these are not marked separately. Missing designations do not mean that a product or brand is not a registered trademark.

The Bluetooth Solar Technology is under license.

SMA Solar Technology AG

wor d mark an d logos are registe red tradem arks owned by Bluet ooth SIG, I nc. and a ny use of su ch marks by SMA

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4."4PMBS5FDIOPMPHZ"(

XXX4."EF

SMA SC 200 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Notes on this Manual

1.1 Area of validity

1.2 Target Group

1.3 Additional Information

1.4 Symbols Used

2 Safety

2.1 Appropriate Usage

2.2 Safety Instructions

2.3 Identifying the Sunny Central

2.4 Operating Modes

3 Grid Security Management

3.1 What are the requirements?

3.2 Active Power Limitation

3.3 The Solution from SMA Solar Technology

4 Control Elements

4.1 Overview

4.2 Sunny Central

4.2.1 Indicator Lights

4.2.2 Key switch

4.2.3 AC Main Switch

4.2.4 Emergency Stop

4.3 Sunny Central Control

4.3.1 Functions of the Control Buttons

4.3.2 Description of the Display Symbols

5 Menu

5.1 Display Messages During Operation

5.2 Menu Overview

5.2.1 Operating data

5.2.2 Spot Values

5.2.3 Long-Term Data

5.2.4 Device Set-up

5.3 Adjusting the Display Contrast

5.4 Setting the Language

5.5 Changing the Date and Time

5.6 Enter Password

5.7 Display Firmware Version

5.8 Deleting the Daily Values of the Energy Yield

6 Measuring Channels

6.1 Adding Further Measurement Channels

6.2 Resetting the Display of Measurement Channels to the Factory Setting

6.3 Retrieving Measurement Data

6.3.1 Retrieving Measurement Data at the Sunny Central Control

6.3.2 Retrieving Measurement Data via Sunny Data Control

6.4 Deleting Measurement Data

7 Parameters

7.1 Description of the Parameter Functions

7.2 Default Parameter Settings

7.3 Changing Parameters

7.4 Resetting Parameters

7.5 Saving Parameters

8 Sending Data

8.1 Selecting Remote Info

8.2 Activating Email Reports

8.3 Selecting Report Types to Send

8.3.1 Daily Report "System Info"

8.3.2 Hourly Report "Errors, Warnings and Events"

8.4 Entering or Changing an Email Address

8.5 Sending a Test Report

9 Analog Inputs

9.1 Detecting External Sensors

9.2 Calculating Gain and Offset

9.3 Configuring External Sensors

9.3.1 ExtSolIrr and ExtGloIrr

9.3.2 Displaying Sensor Values

9.4 Configuring External Messages

9.4.1 Setting ExtAlarm

9.4.2 Activating TmpExt C

10 Active Power Limitation

10.1 Procedure for Setting Active Power Limitation

10.2 Active Power Limitation via Grid Frequency

11 Grid Monitoring

11.1 Grid Connection after Fault Clearance

11.2 Behavior of Grid Limits over Time when Breaches Occur

11.3 Setting the Medium-Voltage Level (applicable only to HE devices)

11.4 Disconnection Protection Ramp (DCRmp)

12 External Grid Monitoring Relay (optional)