SC4850E-ZYT User Mannual (V100R001_01).pdf

SC4850E-ZYT V100R001

User manual

Issue

01

Date

2012-02-15

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd. Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

http://www.huawei.com

Email:

[email protected]

Issue 01 (2012-02-15)

Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd

i

SC4850E-ZYT User manual

About This Document

About This Document Purpose This document describes the SC4850E-ZYT solar controller in terms of its main functions, appearance, application scenarios, configurations, port description, installation, commissioning, and maintenance.

Intended Audience This document is intended for: 

Technical support engineers



Maintenance engineers



Test engineers

Symbol Conventions The symbols that may be found in this document are defined as follows.

Symbol

Description Alerts you to a high risk hazard that could, if not avoided, result in serious injury or death. Alerts you to a medium or low lo w risk hazard that could, if not avoided, result in moderate or minor injury. Alerts you to a potentially hazardous situation that could, if not avoided, result in equipment damage, data loss, performance deterioration, or unanticipated results. Provides a tip that may help you solve a problem or save time. Provides additional information to emphasize or supplement important points in the main text.

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About This Document

Change History Changes between document issues are cumulative. The latest document issue contains all the changes made in earlier issues.

Issue 01 (2012-02-15) This issue is used for first office application (FOA).

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Contents

Contents About This Document .................................................................................................................... ii 1 Introduction.................................................................................................................................... 1 1.1 Principles ............................................................ .............................................................. ................................ 1 1.2 Features ............................................................................................................................................................ 2 1.3 Functions ............................................................ .............................................................. ................................ 2 1.4 Technical Parameters ............................................................... ............................................................... .......... 9

2 Installation and commissioning............................................................................................... 11 2.1 Safety Regulations ......................................................................................................................................... 11 2.2 Installation And Cable Connection ................................................................ ................................................. 11 2.2.1 Installation Preparation ......................................................................................................................... 11 2.2.2 Installing Controller ................................................................................................ .............................. 13 2.2.3 Connecting Cables ................................................................................................................................ 15 2.2.4 Sealing Cable Entry Holes ............................................................................................................ ........ 17 2.3 Commissioning .............................................................................................................................................. 18 2.3.1 Startup Check ................................................................. ............................................................... ........ 18 2.3.2 Power On And Commissioning ............................................................ ................................................. 18 2.4 Final Steps .......................................................... .............................................................. .............................. 20

3 Use of monitoring board............................................................................................................ 22 3.1 Front Panel ..................................................................................................................................................... 22 3.2 Querying Status ............................................................. .............................................................. ................... 23 3.3 Querying Active Alarm ...................................................................... ............................................................ 25 3.4 Setting Parameters ......................................................... .............................................................. ................... 26 3.5 Maintenance ....................................................... .............................................................. .............................. 29 3.6 Querying History Alarm .......................................................... ............................................................... ........ 30

4 Appendix ......................................................................................................................................31 A Acronyms and Abbreviations.................................................................................................. 33

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1 Introduction

1

Introduction

This chapter introduces the principles, features, functions and technical parameters of the SC4850E-ZYT solar controller (controller for short).

1.1 Principles The controller is used in the solar energy system for the outdoor wireless communication stations. The photovoltaic arrays supplies power to the controller. The controller controls the photovoltaic arrays to start working or to stop working, to generate voltage and current to charge the batteries and supply the load. During nights and cloudy days, the batteries sustain the load. The schematic diagram of the solar energy system is shown in Figure 1-1. Figure 1-1 Schematic diagram of the solar energy system



By controlling the input power panel, the controller stabilizes the battery voltage within a specified range, and determines the battery charge state according to the capacity and voltage of the battery.



When the battery voltage is too low, the output power panel will disconnect the loads to protect the battery.

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1 Introduction 

The controller has a monitoring board, which is used to monitor the operation of the controller, control each input power panel and output power panel, and carry out battery management.



The monitoring board provides the RS232/RS485 port, alarm dry contact input port, alarm dry contact output port, battery temperature sensor port and so on.

1.2 Features 

The large LCD enables you to understand the operation conditions of the controller and the battery status.



The controller uses PWM mode and ON/OFF mode to control photovoltaic array input, taking full advantage of solar energy input.



The parallel connection two controllers can work together for power supply.



The controller has ultra low radiation. The advanced EMC design satisfies IEC61000-4 requirements.



The safety design of the controller is compliant with IEC60950-1 standard.



The controller provides excellent battery management functions, including battery undervoltage disconnection (BLVD), temperature compensation, and auto voltage regulation.



The controller has complete protection functions and fault alarm functions.

1.3 Functions The controller has the following functions: array management function, protection function, measurement function, alarm function, alarm input function, alarm output function, control function, communication function, display function, history data record function and battery management function. The detailed descriptions are given below.

Array management function The controller uses PWM mode (default) and ON/OFF mode to charge batteries. In PWM mode, the controller controls the switching of the arrays and takes full advantage of the solar energy system through high frequency switch according to operation status of the solar energy system. In ON/OFF mode, the controller performs switching control of the arrays through switching on and off of the power module.

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1 Introduction

Protection function Table 1-1 Protection function

Function

Description

Remark

Input overcurrent protection

When one photovoltaic panel route has overcurrent (adjustable, see 3.4 Setting Parameters for the setting range), the controller will carry out current control. If the current is too large, the corresponding MCB will trip.

When the fault is clear, the controller will resume automatically. The tripping MCB should be switched on manually.

Output short-circuit protection

When one load output is short-circuited, the The fault must be cleared corresponding MCB will trip. before the MCB of a short-circuited load output can close.

Battery overcurrent protection

In case of battery overcurrent, corresponding MCB will trip.

Over temperature protection

When the battery temperature is over 50°C In overtemperature (adjustable, see 3.4 Setting Parameters), the protection state, the controller will generate an overtemperature battery will disconnect the alarm. photovoltaic panel, When the battery temperature is over 60°C lowering the utility rate in (adjustable, see 3.4 Setting Parameters), the sunny days. Therefore the controller will disconnect the photovoltaic overtemperature function panel input and perform overtemperature is disabled by default. When the battery protection. temperature is normal, the controller will resume automatically.

Surge protection

The controller has an internal SPD that can achieve surge protection. When the SPD is found faulty, the controller will generate an SPD fault alarm. Compliant with Class C surge protection standard.

the

The MCB needs to be closed manually

If the SPD is faulty, users need to replace it manually.

Measurement function Table 1-2 Measurement function

Signal

Measurement range

Accuracy

Environmental requirement Ambient temperature: 25°C

Open circuit voltage photovoltaic panel

of

36 V DC–100 V DC

±0.2 V DC

Operating current photovoltaic panel

of

0A – 50A

± 0.5A

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1 Introduction

Signal

Measurement range

Accuracy

Busbar/ battery voltage

36 V DC – 60 V DC

±0.2 V DC

Total charge/ discharge current of the batteries

-20A – +50A

± 0.5A

Load current

0A – 20A

± 0.5A

Battery temperature

-20° – 80°C

± 3°C

Environmental requirement

Alarm function The alarms are displayed on the LCD of the monitoring board, and are indicated by indicators. The alarms can be set through the monitoring board. The setting method is described in3.4 Setting Parameters. Table 1-3 Alarm function

Alarm Name

Alarm level

Alarm Symptom

Alarm Triggering Condition

Alarm Clearance Condition

HighVolt Alarm

Minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD shows Batt Over Volt

The busbar voltage is higher than the battery overvoltage alarm threshold

The busbar voltage is lower than the battery overvoltage alarm threshold

LowVolt Alarm

Minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD shows LowVolt Alarm

The busbar voltage is lower than the battery undervoltage alarm threshold

The busbar voltage is higher than the battery undervoltage alarm threshold

LVD

Critical

The red indicator on the LCD turns on, and the Active Alarm on the LCD shows that the LVD Alm

The busbar voltage is continuously lower than the load undervoltage disconnection threshold

The busbar voltage is higher than the LVD threshold

Array OverVolt

Minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD shows Array OverVolt

The open circuit voltage of the array is higher than the Array OverVolt threshold

The open circuit voltage of the array is lower than the Array OverVolt threshold

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1 Introduction

Alarm Name

Alarm level

Alarm Symptom



Array OverCurr

Minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD displays Array OverCurr

The working current of the array is higher than the Array OverCurr threshold

The working current of the array is lower than the Array OverCurr threshold

Array lost

Minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD displays Array Lost

After deterring array lost

Array is connected normally

Array reverse

Critical

The red indicator on the LCD turns on, and the Active Alarm on the LCD displays Array reverse

The input polarities of the array are reversely connected,

The open-circuit voltage is higher than 0V

* M1 Short Alm

Critical

The red indicator on the LCD turns on, and the Active Alarm on the LCD displays that the M1 Short Alm

The M1 board is short circuited

The faulty is clear

* M1 Break Alm

Critical

The red indicator on the LCD turns on, and Active Alarm on the LCD displays that the M1 Break Alm.

The M1 board is circuit open.

The faulty is clear

Batt Over-temp

Minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD displays Batt Over-temp

The battery temperature is higher than the battery overtemperature alarm threshold

The battery temperature is lower than battery over-temperature alarm threshold (5°C)

Load Over Curr

Minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD displays Load Over Curr

The load current is higher than the Over LoadCurr threshold

The load current is lower than the Over LoadCurr threshold

SPD fault

Minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD displays SPD Fault

The SPD is faulty

The SPD functions properly

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1 Introduction

Alarm Name

Alarm level

Alarm Symptom



Controller fault

Minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD displays Controller Fault

The control board is faulty or when the two parallel controllers communicate is faulty.

The control board functions properly

Battery circuit open

Critical

The red indicator on the LCD turns on, and the Active Alarm on the LCD displays Battery circuit open

The battery circuit is open

The battery circuit is closed

Load MCB trip

Critical

The red indicator on the LCD turns on, and the Active Alarm on the LCD displays Load MCB Trip

The load MCB trips

The load MCB is closed

Aux Charge Fail

Notes: M1 board is the power-con trol board in controller.

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD displays Aux Charge Fail.

The Auxiliary charge battery abnormally

The Batt voltage up to 53V or Auxiliary is turned out

Temp Sensor Fail

minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD displays “Tem p Sensor Fail”

Battery temperature sensor disconnected or fault alarm threshold

Battery temperature sensor connection properly.

Input Alarm

Minor

The yellow indicator on the LCD turns on, and the Active Alarm on the LCD displays “Input Alarm”

The Input dry contact status is alternative alarm threshold.

The status goes back formaly

Batt Over Curr

Minor

The red indicator on the LCD turns on, and the Active Alarm on the LCD displays that the Batt Over Curr.

The battery charge The battery current is higher charge current is than the product of lower than the battery rated product of battery capacity rated capacity multiplying multiplying current limit current limit coefficient. coefficient.

Notes: M1 board is the power-control board in controller.

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1 Introduction

Alarm input function Table 1-4 Alarm input function

Dry contact type Normally-open, Normally-closed

Dry contact state 

Normally-open: open upon normal input; closed upon alarm input



Normally-closed: closed upon normal input; open upon alarm input

Alarm output function Table 1-5 Alarm output function

Output dry contact SN

Output dry contact alarm

Output contact 1

dry

Controller fault (settable, see Table 3-4 in 3.4 Normally-open. Setting Parameters3.4 Setting Parameters)

Output contact 2

dry

Battery undervoltage (settable, see Table 3-4 in 3.4 Setting Parameters)

Dry contact state

Control function The controller has two control modes: auto control and manual control. 

In auto control status, the controller will perform control functions according to preset parameters and logic automatically.



In manual control status, users can control connections of the photovoltaic panels and loads through keyboard on the controller panel or host.

Communication function The controller can communicate with the host through RS485/RS422 port. The controller parameter, maintenance parameter and adjustment parameter can be set through the host. It can read the measurement values, active alarms, history alarms and history data. The protocol format complies with the master/slave protocol.

Parallel connection The controller can work in parallel-connection model. Each controller communicates with the host through RS485 and can port. They can identify host/master controller automatically and communicate with computer or monitor. The parallel connected controllers can synchronize automatically.

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1 Introduction

Display function The controller uses a 128 × 64 LCD, which displays real-time controller and battery status, measurement values and alarms.

Historical data record function The controller can record data up to 31 days, including the data about: −

The highest battery temperature every day

−

The lowest battery temperature every day

−

The highest battery voltage every day

−

The lowest battery voltage every day

The controller can record 100 historical alarms, including the following alarm information: −

Alarm content

−

Alarm start time and end time

−

Load current and battery voltage in the alarm time (available through the hos t)

Battery management function 



According to input current and voltage, battery capacity, load status and busbar voltage, the controller performs battery management to ensure the efficient charge and discharge of the battery, so as to prolong the battery lifetime and make efficient use of the solar energy. In the auto-state, the controller carries out automatic control according to the preset parameters and logic in order to make full use the energy input from the array.



In battery FC mode, the busbar voltage is controlled within ±0.6V of the preset FC point.



In battery BC mode, the busbar voltage is controlled within -1.2V of the preset BC point.



If controller uses PWM mode, the conditions for FC/BC transition are as follows:



In battery FC state, the controller will control the battery to enter BC mode when the FC voltage decreases to a point lower than the preset “FC to BC voltage” and BC interval has been more than 1 hour.



In battery BC state, the controller will control the battery to enter FC mode when the B C voltage is -1.2V higher than the preset BC voltage and BC has kept for more than 2 hours, or when BC time has reached the maximum time limit.



If controller uses ON/OFF mode, controller will manage array input based on the default ON/OFF logic.

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In the manual state, you can control the On/Off of the photovoltaic panels and connection/disconnection of loads through the operation panel or through the host.

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1 Introduction

1.4 Technical Parameters Table 1-6 Controller technical parameters

Type

Item

Description

Environment

Operating temperature

-20°C – +55°C

Storage temperature

-40°C – +70°C

Relative humidity

0 – 95%RH

Altitude

≤5500m (derating is necessary above 3,000m. Rated current decreases 5A for every 1000m higher)

Others

No conductive dust or erosive gases. No possibility of explosion

Input route

9 routes

Input current

Rated current: 50A. Overcurrent alarm point: 55A (adjustable. See 3.4 Setting Parameters)

Input voltage

Rated input voltage: 48 V DC. maximum open circuit voltage: 96 V DC

Output route

25A × 1 (MCB), 10A × 2 (MCB), 6A × 1(MCB)

Output current

Rated load current: 20 A

Output voltage

Rated voltage: 48 V DC

DC input

DC output

Maximum allowable output voltage: 60 V DC

Battery configuration

EMC

Efficiency

≥ 99%

Input interface

One route. If the route is open, the controller will stop working

Capacity

50 Ah - 5000 Ah

Conducted emission

Class B IEC61000-4

Radiated emission

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Immunity to EFT

Level 3 IEC 61000-4-4

Immunity to ESD

Level 3 IEC61000-4-2

Immunity to surges


Immunity to radiation


Immunity conduction


to


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1 Introduction

Type

Item

Description

SPD

Lightning protection features

The photovoltaic arrays input port and load port are configured with SPD, whose rated capacity is 20 kA and maximum capacity is 40 kA

Safety

Standard

Compliant with IEC60950 standard

Insulation resistance

At temperature of 15°C - 35°C and relative humidity not higher than 90%RH, apply a test voltage of 500 V DC. The insulation resistance between DC circuit and earth is not less than 2 MΩ

Insulation strength

(Remove the SPD from the system before the test.) Input/ output circuit to earth: 1414 V DC Input/ output circuit to communication output circuit: 2828 V DC Input/ output circuit to dry contact: 1414 V DC Communication output circuit to dry contact: 1414 V DC For all the three tests above, there should be no breakdown or flashover within 1 min, with leakage current not bigger than 10 mA

Other

Mechanical

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MTBF

100000hr (Bellcore TR-332 reliability forecast), at 25°C

Protection level

IP55

ROHS

Compliant with R5 requirement of ROHS

Dimension (mm)

260 (W) × 195 (H) × 390 (D)

Weight (kg)

≤ 10 (without packaging)


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2 Installation and commissioning

2

Installation and commissioning

This chapter introduces installation, cable connection, commissioning and later-phase works. Before installation, read through 2.1 Safety Regulation and Safety Precaution, and then follow the instructions to carry out the installation and connect cables step by step.

2.1 Safety Regulations Certain components in this controller have hazardous voltage and current. Adhere to the following instructions: 

Only qualified personnel with sufficient knowledge of the controller can carry out the installation. The safety precautions and local safety rules shall be adhered to during the installation.



All external circuits that are below 48 V DC and connected to the controller must comply with the requirements of SELV as defined in IEC 60950.



Make sure that the power to the controller is cut off before any operations can be carried out within the controller.



After the installation and the commissioning, the controller shall be kept locked and the key should be kept in possession by corresponding personnel.



The wiring of the power distribution cables should be arranged carefully so that the cables do not come in contact with the maintenance personnel.



All the tools must be insulated and antistatic.

2.2 Installation And Cable Connection 2.2.1 Installation Preparation Unpacking inspection 

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The equipment should be unpacked and inspected after it arrives at the installation site. The inspection shall be carried out by representatives of both the user and HUAWEI Co., Ltd.


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2 Installation and commissioning 

To inspect the equipment, you should open the packing case, take out the packing list and check whether the equipment is correct and complete accordingly to the packing list. Make sure that the equipment is delivered intact.

Preparing cables The cable should be selected in accordance with relevant industry standards. The CSA of DC cable depends on the current flowing through the cable, the allowable voltage drop and load peak current. The cable list is given in Table 2-1. Table 2-1 Cable list

Connection point

Recommended CSA

Battery to controller

16 mm

Controller grounding cable

10 mm

2

2

Recommended cable color

Recommended max. distance

Blue for negative and black for positive

13 m

Yellow-green

1.8m

Note: the actual cable CSA and color may differ in actual configuration

Select the battery cable CSA according to Table 2-2. Table 2-2 Battery cable CSA selection

Battery fuse rated current

Max. battery current

Min. cable CSA

100 A

60 A

16 mm

2

Terminal specs

Max. cable length (allowable voltage drop: 0.5V)

H shape terminal

8m

Note: 1. The specs are applicable at ambient temperature of 25°C. If the temperature is higher or lower than this, the CSA of the cable should be increased. 2. The battery cable should reach at least +70°C heat durability

Select the load cable CSA according to Table 2-3. Table 2-3 DC load selection

Load route rated current

Max. output current

Min. cable CSA

25 A

20 A

6 mm

10 A

8A

4 mm

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Max. cable length (volt drop: 0.5V, with min. CSA)

Max. cable length (volt drop: 0.5V, with max. CSA)

2

19 m

52 m

2

19 m

52 m


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Load route rated current

Max. output current

Min. cable CSA

Max. cable length (volt drop: 0.5V, with min. CSA)

Max. cable length (volt drop: 0.5V, with max. CSA)

10 A

8A

4 mm

2

19 m

52 m

6A

5A

4 mm

2

19 m

52 m



To make sure that the MCB works properly upon overloads, the MCB capacity should be kept within 1.5 - 2 times the rated load capacity.



The CSA of the grounding cable should be not less than 6 mm .



The battery MCB and load MCBs use H shape terminal to connect. Or users use cables with insulation layers broken up to connect to the load MCBs.



There are six PG21 cable entry holes at the bottom of the controller.

2

2.2.2 Installing Controller The controller installation modes include wall mounting and mast mounting. Before determining the specific installation position of the cabinet, make sure that there is an 800 mm maintenance space in the front of the cabinet. The installation steps are shown in Figure 2-1. 1. Mount expansion bolts into the wall through the eight installation holes shown in Figure 2-1, it is recommended to use M4× 8 bolts to install the four hangers. Figure 2-1 Installation dimesions(unit:mm)

2. In either wall mounting or mast mounting, it is recommended to use M10 socket spanner and M10 × 16 bolts. The installation diagrams of wall mounting and mast mounting are shown in Figure 2-2 and Figure 2-3.

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Figure 2-2 Wall mounting

Figure 2-3 Mast mounting

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2.2.3 Connecting Cables The controller uses bottom cabling method. The connection terminals are shown in Figure 2-4. Figure 2-4 Cable connection of the controller

The following precautions should be taken in the cable connection operation. 1. Before connecting battery cables, users should check the polarities of the cables against those of the batteries and switch the battery MCB to ensure safety. 2. After the check, connect the positive battery cables to the positive busbar. Connect the negative battery cables to the battery MCB. 3. Check once again that the polarities of the cables connected to the positive busbar and battery are correct.

WARNING Reverse connection or short-circuit of the battery might cause the battery to burn or other major failures, and even endanger personal safety. Only experienced processionals are allowed to connect the batteries. During the operation, pay attention to polarities and prevent shortcircuit to ensure personal safety.

Prepare cables according to Table 2-4, and connect the cables.

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Table 2-4 Cable connection description Cable

Array cables

Color

input

Battery cables

Output cables

Communication cables 1

Communication cables 2 (Parallel Connection)

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Amount

Connection

From

To Positive electrode of the controller (9 routes)

Positive (+)

Black

9

Positive electrode of the array

Negative (-)

Blue

9

Negative Negative electrode of the electrode of the array controller (9 routes)

Positive (+)

Black

1

Positive electrode of the battery string

Negative (-)

Blue

1

Negative Negative electrode of the electrode of the battery string battery of the controller (1 route)

Positive (+)

Black

4

Positive electrode of the controller (4 routes)

Negative (-)

Blue

T+

/

1

Controller J16_T+

Other monitor devices

T-

/

1

Controller J16_T-


R+

/

1

Controller J16_R+


R-

/

1

Controller J16_R-


T+

/

1

Main controller J17_T+

The other controller J16_T+

T-

/

1

Main controller J17_T-

The other controller J16_T-

4


Positive electrode of the controller (1 route)

Positive electrode of the load

Negative Negative electrode of the electrode of the controller (4 load routes)

16



Cable

Communication cables 3 (Parallel Connection)

Auxiliary power supply cable

Color

Amount

Connection

R+

/

1

Main controller J17_R+

The other controller J16_R+

R-

/

1

Main controller J17_R-

The other controller J16_R-

CAN+

/

1

Main controller J12_CAN+

The other controller J12_CAN+

CAN-

/

1

Main controller J12_CAN-

The other controller J12_CAN-

J6

Blue-Black

Connected already controller

J6 on in board

main

PGND bar

Metal

1

Positive busbar of the controller

Grounding terminal of the controller housing

Grounding cable

Yellow-green

1

Grounding screw of the controller housing

Ground support

or

Note: 1. The positive electrode of the busbar of the controller is connected to the grounding point of the controller housing at factory, users need to check it . 2. You should put the cables through the cable entry holes at the bottom, and then crimp the cable tap. The positive busbar uses OT lugs for connection. For Negative electrodes, you can either use H-shape terminals, or crimp-connect after peeling off the insulating coating. 3. The load cable is provided by the equipment that uses power. 4. Make sure that all MCBs and fuses are disconnected before the cable connection. 5. Colors of the cables can be adjusted on site according to actual situation.

2.2.4 Sealing Cable Entry Holes For outdoor controllers, users should seal the cable entry holes after the installation. The procedures are as follows: 

For used holes, tighten them with PG caps.



For holes with a small cable or with several cables, block them with caps and seal them with waterproof mud (accessory).



For unused holes, block them with cables and seal them with waterproof mud.

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Remark: It supports the installation of OMU-B. For details, please refer to the "OMU-B User Manual".

2.3 Commissioning 2.3.1 Startup Check Check the items given in Table 2-5 and record the check result. Ensure that the components are installed firmly and the cables are connected properly. Table 2-5 Checking items before startup

Type

Checking item

Content

Array Input

Input cables

The polarities are correct. The connections are proper. All the input and output MCBs are switched off

Between positive Negative terminals Output

The polarities are correct. The connections are proper. All the input and output MCBs are switched off

Output cables

Between positive Negative terminals Battery

and No shortcircuit

and No shortcircuit

Battery cables

The polarities are correct. The connections are proper

Between positive and No shortcircuit negative battery terminals

2.3.2 Power On And Commissioning The power on and commissioning procedures of the controller are as follows. 1. Battery polarity check and connection Check that the polarities of the two batteries are correct and switch on the battery MCB. Meanwhile the auxiliary power supply of the monitoring board in the controller starts to work. The monitoring unit starts self-checking. After the self-checking, the first information screen will appear, as shown in Figure 2-5.

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Figure 2-5 First information screen

Check the alarm status of the monitoring module. When the red and yellow indicators on the monitoring module are off, it means that everything is normal. After the startup, the red indicator and the yellow indicator of the monitoring module might be on. Users may remove the alarms according to Table 1-3. When the checks are normal, please switch on the input MCB of the photovoltaic array. 2. Load polarity and connection check Check that the connection of the load cables, the MCB capacity of the load is proper, and the polarities of the load are correct. After making sure that everything is okay, go on to the next step. 3. Battery busbar voltage measurement Use a multimeter to measure the battery busbar voltage. If the busbar voltage is within the normal voltage (48V - 55V), switch on one load MCB. Check that the battery busbar voltage is within the normal range after the load starts up and works normally. If the battery busbar voltage is close to 47V, do not switch on the next load MCB until the batteries are properly charged. Repeat the operation until all the loads are powered on and work normally. 4. Parameter setting Set the significant parameters according to the parameter card which is delivered with the controller. Enter the corresponding operation interface and enter the password to set the parameter, see 3.4 Setting Parameters. 1) Battery parameter setting Set the battery capacity according to the total capacity of the batteries actually configured, and set busbar overvoltage alarm point, busbar undervoltage alarm point and busbar undervoltage protection point in accordance with the battery features. If the controller is configured with battery temperature sensor, users need to set the battery overtemperature alarm point and battery overtemperature protection point. If not, users do not need to set these parameters. 2) Set system control method The controller provides two photovoltaic array control methods: PWM method and ON/OFF method. Users select control method according to their need. PWM method is recommended. 3) Local address: 4 (default). Notes: Controller local address should be setup the same as each other in parallel connection. 4) Default protocol: Master-Slave protocol.

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5) Time: in accordance with actual time and date. 6) The controller will assume defaults for the parameters not configured during the commissioning. 7) For significant parameters, it is recommended to use default settings if not specified. 8) Set jumpers of the board card according to actual s ituation, as listed in Table 2-6. Table 2-6 Jumper setting list

SN

Scree nprin t

Parameter

Settings

Default

1

SIP1

Output dry Pins1,2short-circuited:normally-closed; contact 1 pins2,3short-circuited: normally-open.

Normally-open

2

SIP9

Output dry Pins1,2short-circuited:normally-closed; contact 2 pins2,3 short-circuited: normally-open.

Normally-open

Notes: Keep default parameters.

5. General parameter setting For the photovoltaic array open-circuit-voltage too high alarm point and photovoltaic input overcurrent alarm point, set these parameter according to the maximum open circuit voltage and the shortcircuit current of the photovoltaic arrays, and the allowable setting range listed in Table 1-2 When parallel connection system, all of the two controllers parameters will be the same after Can cable connecting except Output/Input dry contact and address. If parameter of one controller is setup, the correspondence parameters of other controller keep synchronization automatically. 6. Alarm check After the parameter settings, the system status should be „No alarm‟. If the system status is „Alarm‟, check the alarm by referring to 3.3 Querying Active Alarm and clear the alarm. 7. History alarm clearing Clear history alarm generated during the commissioning by referring to 3.6 Querying History Alarm. All the alarms will be cleared out in parallel connection. 8. The return to the system information screen Press ESC to return to the system information screen.

2.4 Final Steps After the installation and commissioning, fill in the parameter card with the actual parameters. 

Clear the installation field.



Sort the accessories and store them properly.

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2 Installation and commissioning 

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Lock the controller cabinet. Keep the key.


21


3 Use of monitoring board

3

Use of monitoring board

This chapter describes the front panel of the monitoring board, and querying and setting method of the menus.

3.1 Front Panel The front panel of the monitoring board is shown in Figure 3-1. Figure 3-1 Front panel of monitoring board

Description of the indicators on the front panel is in Table 3-1. Table 3-1 Monitoring module indicator description

Indicator

Color

Normal state

Fault state

Fault cause

Run indicator

Green

Blinking at 0.5 Hz

-

The SC4850E communicates with Huawei communications equipment or OMU-B(Box Type Operation Manage Unit) properly.

-

Blinkin g at 4 Hz

Communication with Huawei communications equipment or OMU-B is interrupted.

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Indicator

Color

Normal state

Fault state

Fault cause

-

Off

The SC4850E has no power input.

Alarm indicator

Yellow

Off

On

There are minor alarms

Critical alarm indicator

Red

Off

On

There are critical alarms

The monitoring board uses a 128 × 64 LCD and a keypad with 6 keys. The interface languages are Chinese and English. Description of the keys is in Table 3-2. Table 3-2 Description of keys

Keys

Functions

ESC

Return key: Press this key to go back to previous menu

ENT

Confirmation key: Press this key to go to next menu or validate the change made to a parameter setting. After a change, only pressing ENT can validate the change

▲ ▼

Press ▲ or ▼ to scroll through the menus. When the editable options are character strings, pressing ▲ or ▼ can edit values

◄

Press ◄ or ► to move the cursor

►

On the first information screen, press ESC and you can see the software version

These four arrow keys can be used to change the value of a parameter: Press ◄ or ► to move the cursor to the parameter to be changed and press ▲ or ▼ to change the value of a parameter

3.2 Querying Status The first information screen is shown in Figure 3-2. Figure 3-2 First information screen



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The first row of the first information screen displays the date and time alternately.


23


3 Use of monitoring board 

The second row displays the output voltage of the controller and the load current. 55.2 V DC is output voltage and 4.6A is total load current. The content varies with the actual values.



The third row displays the controller status, which is „No alarm‟ or „Alarm‟.



The fourth row displays management mode and battery charge status. The management mode includes manual mode and auto mode. The battery charge status includes FC, BC and discharge status.

Press ▼ continuously at the first information screen, users can query the information listed in Table 3-3. Table 3-3 Query information

SN.

Status

Content

1

Batt Volt

The present battery voltage

NA

2.

Load Current

The present load current

NA

3.

Operation Status

„Auto‟ or ‟Manual‟

NA

4

PV State

„On‟, „Off‟ or „PWM‟

NA

5

PV OpenVolt

The actual array voltage

NA

6

PV Current

The present array current

NA

7

Battery Current

The present battery current

NA

8

Battery Temp

The actual battery temperature

NA

9

Batt Remain Cap

The current remaining battery capacity

NA

10

Batt Times

Chrg

The total battery charge times

NA

11

Batt Times

Disc

The total battery discharge times

NA

12

Daily Cap

Chrg

The total charge capacity of the day

NA

13

Daily Cap

Disc

The total discharge capacity of the day

NA

14

PV Input Cap

The accumulated array input capacity

NA

15

Load Output Cap

Accumulated load output capacity

NA

16

Max Temp

Batt

The maximum battery temperature of NA the day

17

Min Temp

Batt

The minimum battery temperature of NA the day

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SN.

Status

Content

18

Max Batt Volt

The maximum work voltage of the day

NA

19

Min Batt Volt

The minimum work voltage of the day

NA

20

AUX state

Chrg

The current auxiliary charge state. NA Available when auxiliary charge is enabled, that is, diesel generator, wind power system or other auxiliary equipment is used to charge batteries

21

Current Chrg Time

The current auxiliary charge time. NA Available when auxiliary charge is enabled

22

Total Time

The total auxiliary charge time. NA Available when auxiliary charge is enabled

23

Sys Run Time

Total system run time

NA

40

Comm.State

Connected/Disconnected

NA

41

GPRS IP

0.0.0.0 – 255.255.255.255

After "GPRS" option is selected for networking mode, system will display

42

GPRS State

Dialing/Dial Fail


43

SIM State

On Line/Off Line


44

GSM Signal

NA/7

NA: Haven't registered; 0-7: Means signal quality level

Chrg

Succeed/NotDial/Dial

After querying all the information, press ▲ continuously to return to the first information screen, or press ENT to enter the main menu screen, as s hown in Figure 3-3.

3.3 Querying Active Alarm 1. Press ENT at the information screen to enter the main menu, as shown in Figure 3-3.

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Figure 3-3 Main menu screen: Active alarm highlighted

2. Figure 3-3 illustrates that „Active alarm‟ is selected. Press ENT to enter the active alarm screen and view the active alarms, as shown in Figure 3-4. Figure 3-4 Active alarm screen

3. Press ▼ at the active alarm screen, users can query all the active alarms. Press ESC to return to the main menu.

3.4 Setting Parameters 1. Press ▼at the main menu screen to select the „Settings‟ submenu, as shown in Figure 3-5. Figure 3-5 Main menu screen: Settings highlighted

2. Press ENT to enter the password screen, as shown in Figure 3-6. Figure 3-6 Password screen

3. Enter the password: 640275.

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To enter the password, use ▲ or ▼ to modify numbers, and use ◄ or ► to move the cursor. After entering the password, press ENT to confirm the password and enter the Settings screen, as shown in Figure 3-7. Figure 3-7 Settings first screen

Press ▼ at the settings first screen, user can set the parameters listed in Table 3-4. Table 3-4 Setting parameters

SN

Parameter name

Setting range

Default

1

Batt capacity

50Ah - 5000Ah

300Ah

2

HighVolt Alarm

BC voltage + 1.5 V DC (min: 58.0 V DC) - 60.0 V DC

58.5 V DC

3

LowVolt Alarm

LLVD+ 0.5 V DC (min: 46.0 V DC) - 50.0 V DC

47.0 V DC

4

LLVD

43 V DC - 48 V DC

46 V DC

5

B-HighTemp Alm

35°C - B-OverTemp Prot -10°C (max: 60°C)

50°C

6

B-Temp EN

Yes, No

No

7

B-OverTemp Prot

B-HighTemp Alm + 10°C (min: 45°C) - 70°C

60°C

8

Boost Volt

min:

56.4 V DC

Prot

Chrg

54.2 V DC(Float Chrg Volt + 2.2 V DC) – max: 57.5 V DC (HighVolt Alarm - 1.5 V DC)

9

Float Chrg Volt

min: 52.0 V DC (FC to BC Volt +1.5 V DC) – 53.5 V DC max: 56.3 V DC (Boost Chrg Volt - 2.2 V DC)

10

Dry contact

NO, NC

NO

11

DryCont output 1

Array lost, battery undervoltage, battery loop open, LLVD, Battery over temperature, controller fault

Controller fault

12

DryCont output 2

Array lost, battery undervoltage, battery loop open, LLVD, Battery over temperature, controller fault

Battery undervoltage

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SN

Parameter name

Setting range

Default

13

AUX Mode

Charge

Voltage mode, Time mode

Voltage mode

14

AUX time

trigger

00:00 - 23:30

20:00

15

AUX run time

2H - 18H

10H

16

Temp Set

Comp

Yes, No

Yes

17

Temp Coeff

Comp

0 - 100(-mV/°C.S)

72(-mV/°C.S)

18

Address

1 - 254

4

19

Comm Protocol Tel

Master-Slave, Tel Protocol

Master-Slave

20

Clear History

Yes, No

No

21

Reset parameter

Yes, No

No

22

Date & Time

Yes, No

No

23

Language

Chinese, English

English

24

Charge Mode

PWM, ON/OFF

PWM

42

Comm Method

GPRS,IP

No

43

Server IP Addr

0.0.0.0 – 255.255.255.255

0.0.0.0

44

BackupServer IP

0.0.0.0 – 255.255.255.255

0.0.0.0

45

Site ID

“A–Z”“a–z”“0–9”“#”“*”“ space”“、”“.”“-” “@” NA

46

APN Name

“A–Z”“a–z”“0–9”“#”“*”“ space”“、”“.”“-” “@” NA

47

APN Number

“A–Z”“a–z”“0–9”“#”“*”“ space”“、”“.”“-” “@” NA

48

User Name

“A–Z”“a–z”“0–9”“#”“*”“ space”“、”“.”“-” “@” NA

49

User Password

“A–Z”“a–z”“0–9”“#”“*”“ space”“、”“.”“-” “@” NA

50

SMC Number

“0–9”“+”

NA

51

NMC Number

“0–9”“+”

NA

52

OMU IP

0.0.0.0 – 255.255.255.255

0.0.0.0

53

OMU Make IP

0.0.0.0 – 255.255.255.255

0.0.0.0

54

Gateway

0.0.0.0 – 255.255.255.255

0.0.0.0

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3.5 Maintenance 1. Press ▼ at the main menu screen to select the „Maintenance‟ submenu, as shown in Figure 3-8. Figure 3-8 Main menu screen: Maintenance highlighted

2. Press ENT to enter the password screen, as shown in Figure 3-9. Figure 3-9 Password screen

3. Enter the password: 640275. To input the password, use ▲ or ▼ to modify numbers, and use ◄ or ► to move the cursor. After the input, press ENT to confirm the password and enter the maintenance screen, as shown in Figure 3-10. Figure 3-10 Maintenance screen

4. Press ► to change „Auto‟ into „Manual‟, and press ENT to confirm the setting. In the manual mode, users can perform the following array controls, as described in Table 3-5. Table 3-5 Control parameters in manual mode

SN

Control parameter

Setting range

1

PV Array

On, off

2

Load

Disconnect, Reconnect

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SN

Control parameter

Setting range

3

AUX charge

On, off

In manual mode, the monitoring board will display as shown in Figure 3-11. Figure 3-11 Array screen

3.6 Querying History Alarm 1. Press ▼at the main menu screen to select the „History alarm‟ submenu, as shown in Figure 3-12. Figure 3-12 Main menu screen: History alarm highlighted

2. Press ENT to view the history alarms, as shown in Figure 3-13. Figure 3-13 History alarm screen

3. Press ▼ at the history alarm screen, users can query all the history alarms. Press ESC to return to the main menu.

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4 Appendix

4

Appendix

Table 4-1 Hazardous substance

Parts

Hazardous Substances 6+

Plumbum

Hydrargy rum

Cadmium

Chrome

Pb

Hg

Cd

Cabinet/busb ar

×

O

Power distribution components

×

PCBA

PBB

PBDE

Cr

PBB

PBDE

O

O

O

O

O

×

O

O

O

O

O

O

O

O

O

Hardware

×

O

O

O

O

O

Cable

×

O

O

O

O

O

6+

O: Means the content of the hazardous substances in all the average quality materials of the part is within the limits specified in SJ/T-11363-2006. ×: Means the content of the hazardous substances in at least one of the average quality materials of the part is outside the limits specified in SJ/T11363-2006 (The following gives technical reasons for the items marked „×‟) Huawei Technologies Co., Ltd. has been committed to the design and manufacturing of environment-friendly products. It will reduce and eventually eliminate the hazardous substances in the products through continued efforts in research. However, limited by the current technical level, the following parts still contain hazardous substances due to the lack of reliable substitute or mature solution: 1. All solders in the products contain plumbum. 2. Copper alloy contains plumbum. 3. Switch contacts contain cadmium and cadmium compound

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4 Appendix

Parts

Hazardous Substances

About Environment Protection Period: The Environment Protection Period of the product is marked on the product. Under normal working conditions and normal use of the products observing relevant safety precautions, the hazardous substances in the product (excluding batteries or storage batteries) will not seriously affect the environment, personal safety or property in the environment protection period starting from the manufacturing date Applicable product: SC4850E-ZYT solar controller

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SC4850E-ZYT User Mannual (V100R001_01).pdf

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