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SMU01C
User Manual

5 Power System Configuration

Issue 03 (2015-01-05)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd

12

5

Power System Configuration

5.1 Basic Lead-Acid Battery Parameters

Principles

Battery management includes battery boost charging and float charging management,
discharge detection and capacity detection, etc. This management is performed based on the
basic battery parameters. Therefore, configure these basic parameters as required to ensure the
normal battery management.

Parameters

Table 5-1

Basic battery parameters

Parameters

Description

Batt String

If no battery is connected, set

Batt String

to 0.

If one or more battery strings are connected, set

Batt String

to 1.

Capacity

Equals to the total capacity of all connected batteries.

Charge Coef

The maximum charging current of the battery is determined by the
charge

coefficient

multiplied by battery capacity.

Examples:

If the battery capacity is 100 Ah and the maximum charging current is
10 A, set the charge coefficient to 0.10.

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Summary of Contents for SMU01C

Page 1: ...SMU01C V300R002C03 User Manual Issue 03 Date 2015 01 05 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ... 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 docum...

Page 3: ...ntions The symbols that may be found in this document are defined as follows Symbol Description Indicates an imminently hazardous situation which if not avoided will result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Indicates a potentially hazardous situation which if not avoided may result in minor or moderat...

Page 4: ...n document issues are cumulative The latest document issue contains all the changes made in earlier issues Issue 03 2015 01 05 Updated Table 6 3 LVD parameter description to add parameters related to load power off Updated Table A 1 LCD menu to add the LLVD function The matching software version is V300R002C03SP10 Issue 02 2014 03 05 Updated Table 9 1 Alarm list to optimize alarm names Updated Tab...

Page 5: ... LCD Operations 9 5 Power System Configuration 12 5 1 Basic Lead Acid Battery Parameters 12 5 2 Communications Parameters 13 6 VRLA Battery Management 15 6 1 Battery Charging 15 6 1 1 Float Charging 15 6 1 2 Boost Charging 16 6 2 Low Voltage Disconnection Protection 17 7 Rectifier Management 21 7 1 Querying Operating Information 21 7 2 Setting Intelligent Hibernation Parameters 22 8 Maintenance 25...

Page 6: ...Mains Fault 35 9 5 2 AC Over Volt 35 9 5 3 AC Under Volt 36 9 5 4 DC Over Volt 36 9 5 5 DC Under Volt 36 9 5 6 Batt Over Temp 37 9 5 7 Batt Under Temp 37 9 5 8 Amb Over Temp 37 9 5 9 Amb Under Temp 37 9 5 10 Batt Operation 38 9 5 11 Batt Over Curr 38 9 5 12 Load Fuse Trip 38 9 5 13 Batt loop Trip 38 9 5 14 Rect Fault 39 9 5 15 Singl Rect Fault 39 9 5 16 Multi Rect Fault 39 9 5 17 Rect Comm Fault 3...

Page 7: ... module that monitors Huawei box type power modules Figure 1 1 shows an SMU01C Figure 1 1 SMU01C 1 2 Network Diagrams The SMU01C manages batteries and rectifiers and monitors the operating environment for the power system according to the ambient temperature and battery temperature displayed on the liquid crystal display LCD Figure 1 2 shows the SMU01C network diagrams for reference only ...

Page 8: ... four dry contact outputs Provides two dry contact inputs Provides ports for battery temperature sensors and ambient temperature sensors Supports Chinese and English as displayed languages Is hot swappable 1 4 Functions Table 1 1 shows the main functions of the SMU01C Table 1 1 SMU01C functions Category Function Battery management Battery boost charging and float charging management Battery test m...

Page 9: ...igh temperature protection Low voltage disconnection LVD protection Battery imbalance detection Battery capacity detection Rectifier management Rectifier operating information Rectifier power on off control Rectifier output voltage and current limiting Energy saving Intelligent rectifier hibernation Detection AC voltage DC voltage Load current Battery current and temperature Ambient temperature ...

Page 10: ...ports in this manual are protected by a security mechanism Figure 2 1 shows an SMU01C panel Figure 2 1 SMU01C panel 1 Run indicator 2 Major alarm indicator 3 LCD 4 Button 5 Locking latch 6 DIN port 7 ALM port 8 Ambient temperature sensor port 9 Battery temperature sensor port 10 RS485 RS232 port 11 COM port Indicators Table 2 1 describes the SMU01C indicators ...

Page 11: ...D The SMU01C provides a liquid crystal display LCD to display power system information in real time Buttons The SMU01C provides four buttons for setting and querying parameters Table 2 2 describes the buttons Table 2 2 Button description Button Name Description or Arrow key Turns to the previous or next menu and sets parameter values Cancel Returns to the previous menu without saving the settings ...

Page 12: ...tes 9600 bit s and 19200 bit s respectively YDN protocol Huawei master slave protocol RS485 RS232 NOTE The COM ports and RS485 RS232 ports work in active standby mode Either of them is at work The RS485 and RS232 serial ports are mutually exclusive Figure 2 2 Pins of the RJ45 port Table 2 4 COM or RS485 RS232 port pin definition Pin Signal Description 1 TX Sends data over RS485 2 TX 4 RX Receives ...

Page 13: ...s when installing or replacing the SMU01C 3 1 Installing an SMU01C To install an SMU01C perform the following steps Step 1 Hold the handle of the SMU01C and insert the SMU01C into the correct position in the power system Step 2 Push the SMU01C until its front panel aligns with the front panel of the power subrack Step 3 Push the locking latch on the front panel to the right Figure 3 1 Installing a...

Page 14: ...ntial Copyright Huawei Technologies Co Ltd 8 3 2 Installing Dry Contacts and Boolean Values Signal Cables Install dry contacts and Boolean values signal cables as shown in Figure 3 2 Figure 3 2 Installing dry contacts and boolean values signal cables 1 White Contact plate 2 Dry contact ...

Page 15: ...td 9 4 LCD Operations LCD Menu Hierarchy Figure 4 1 LCD menu hierarchy Before entering Setting and Maintenance you need to enter a password The preset password is 000001 Symbol Description Table 4 1 Symbol Description Symbol Description Press the Enter button once Press the Down button once Press the Down button more than once ...

Page 16: ...ng or on the LCD and then press Enter to enter the standby screen Figure 4 2 Selecting a display language Viewing System Operating Information You can view real time information about the AC and DC status and load current on the LCD Figure 4 3 Viewing system operating information Table 4 2 System operating information Parameter Description AC voltage AC voltage calculated by rectifiers DC voltage ...

Page 17: ...enter a password before entering the Settings and Maintenance menu The preset password is 000001 Figure 4 4 shows how to change the password Step 4 Enter the page for changing user password by choosing Main Menu Settings System Settings Step 5 On the Enter New PSW page press or to specify a new password and then press Enter Figure 4 4 Changing user password End ...

Page 18: ...arameters Therefore configure these basic parameters as required to ensure the normal battery management Parameters Table 5 1 Basic battery parameters Parameters Description Batt String If no battery is connected set Batt String to 0 If one or more battery strings are connected set Batt String to 1 Capacity Equals to the total capacity of all connected batteries Charge Coef The maximum charging cu...

Page 19: ...Operation Figure 5 1 Setting basic battery parameters on the LCD 5 2 Communications Parameters Principles You can manage the SMU01C locally and remotely over the RS4985 RS232 and COM ports Table 5 2 Communications parameters Network Port Parameter Power and environment network Huawei master slave communications network COM RS485 RS232 Address Baud ...

Page 20: ...ommunications parameters Parameters Description Default Value Value Range Address Communications address for the SMU01C 0 0 30 Baud Baud rate for the SMU01C Identified by SMU01C automatically 9600 19200 LCD Operation Figure 5 2 Setting communications parameters on the LCD The SMU01C automatically identifies Baud Values in the preceding figure are for reference only ...

Page 21: ...er the AC input or DC output is restored rectifiers supply DC power to loads and lead acid batteries 6 1 1 Float Charging Principles Lead acid batteries discharge slowly when they are being used To compensate for the loss caused by self discharge charge lead acid batteries in float mode to ensure their full amount of electricity Float charging also helps to maintain battery capacity after a large ...

Page 22: ...y is restored After long time float charging batteries suffer great loss caused by self discharge and their activity deteriorates Boost charging is required to restore the battery activity and capacity The boost charging voltage is higher than the float voltage Parameters Table 6 2 Boost charging parameter description Parameters Description Default Value Value Range BC Volt Charge voltage at which...

Page 23: ... AC input is abnormal batteries start to power loads In this case the SMU01C drives contactors to disconnect loads and batteries in sequence based on preset disconnection parameters After the AC input resumes the rectifiers begin to power loads and charge batteries Parameters Table 6 3 LVD parameter description Parameters Description Default Value Value Range BLVD Enabled To enable or disable the ...

Page 24: ...tery voltage is lower than the value of BLVD voltage threshold the BLVD circuit is disconnected 43 0 V 38 0 V to 44 9 V 38 0 V BLVD Volt LLVD Volt LLVD To enable or disable the LLVD If the LLVD circuit is powered off disabling the LLVD means to power on the LLVD circuit No Yes No LLVD If the battery voltage is lower than the value of LLVD voltage threshold the LLVD circuit is disconnected 44 0 V 3...

Page 25: ...User Manual 6 VRLA Battery Management Issue 03 2015 01 05 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 19 LCD Operation Figure 6 3 BLVD low voltage disconnection setting on the LCD ...

Page 26: ...SMU01C User Manual 6 VRLA Battery Management Issue 03 2015 01 05 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 20 Figure 6 4 LLVD low voltage disconnection setting on the LCD ...

Page 27: ... Operating Information Principles The SMU01C monitors the rectifier operating information in real time and displays the information on the LCD Parameters Table 7 1 Rectifier operating information Parameters Description DC output voltage Detected DC bus bar voltage Module output current Sum of the output currents of all rectifiers Status Indicating the status of rectifiers ...

Page 28: ... when the load is light If the total load of the power system is light certain rectifiers in the system operate with high load and others hibernate This mechanism improves the operation efficiency of the system and saves energy Rectifiers should hibernate in turn to ensure the same aging degree If the difference between the longest rectifier running duration and the shortest rectifier running dura...

Page 29: ...scription for intelligent rectifier hibernation Parameters Description Default Value Value Range Sleep Enable Enables or disables intelligent rectifier hibernation No Yes No Best Effi Point Loading capacity for the rectifiers running at an optimal efficiency 70 60 to 80 Exch Cycle Interval between hibernation operations 7 days 5 to 30 days Min Num Rect Minimum number of running rectifiers 1 PCS 1 ...

Page 30: ...nual 7 Rectifier Management Issue 03 2015 01 05 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 24 LCD Operation Figure 7 3 Setting parameters for intelligent rectifier hibernation on the LCD ...

Page 31: ...Technologies Co Ltd 25 8 Maintenance 8 1 Viewing Version Information You can view the current monitoring software version on the LCD by choosing Main Menu Alarm Status Version Info Figure 8 1 SMU01C version information on the LCD 8 2 Setting Time and Date Figure 8 2 shows how to set time and date on the LCD ...

Page 32: ...ential Copyright Huawei Technologies Co Ltd 26 Figure 8 2 Setting time and date on the LCD 8 3 Setting the System Type Figure 8 3 shows how to set the system type on the LCD The default system type varies based on the subrack types The following figure takes the EPT4890 as an example ...

Page 33: ...SMU01C User Manual 8 Maintenance Issue 03 2015 01 05 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 27 Figure 8 3 Setting system type on the LCD ...

Page 34: ...arm list Alarm Default Alarm Severity Related Dry Contact Mains Fault Major None AC Over Volt Minor None AC Under Volt Minor None DC Under Volt Major None DC Over Volt Major None Batt Over Temp Minor None Batt Under Temp Minor None Amb Over Temp 1 Minor None Amb Under Temp 1 Minor None Amb Over Temp 2 None None Amb Under Temp 2 None None Amb Over Humi Minor None Amb Under Humi Minor None Door Alar...

Page 35: ... Rect Fault Major None Rect Comm Fail Minor None Rect Protect Minor None Batt Off Major None Load Off Major None Dig Input 1 7 ALM Minor None Bat Sensor 1 2 Fail None None Amb Temp 1 2 Fail None None Humi Sensor Fail None None Major Alarm None ALM1 Minor Alarm None ALM2 9 1 2 Setting Alarm Severity Figure 9 1 shows the default severities for alarms about the SMU01C You can modify the alarm severit...

Page 36: ...ry Contact Input Ports The SMU01C provides two dry contact inputs for connecting heaters and air conditioners The SMU01C also monitors the running status of devices over the dry contacts The following example describes how to connect a heater to the DIN2 port Step 1 Figure 9 2 shows how to connect the SMU01C to a heater For connecting the signal cables between the SMU01C and the heater see Figure ...

Page 37: ...Table 9 1 shows the default configuration for the SMU01C dry contact input ports If the heater generates alarms when the dry contact is open perform step 3 to change the default DIN2 port status to Low If the heater alarm generates alarms when the dry contact is closed perform step 4 to check whether an alarm is generated Table 9 1 Default dry contact input configurations Dry Contact Default Dry C...

Page 38: ...t DIN2 port is successfully modified End 9 1 4 Associating Alarms to Dry Contact Output Ports The SMU01C provides four dry contact outputs that relate to the alarms in Table 9 1 Table 9 2 lists the default dry contact output configurations You can modify the configurations as required Table 9 2 Default dry contact output configurations Dry Contact Alarm Association Default Status NO NC ALM1 Major ...

Page 39: ...ies Co Ltd 33 Associate the AC overvoltage alarm to ALM3 Figure 9 4 shows how to associate alarms to the dry contact output ports Figure 9 4 Associating alarms to dry contact output ports 9 2 Viewing Active Alarms You can view active alarms on the LCD as shown in Figure 9 5 Parameters in the figure are for reference only ...

Page 40: ...iewing Historical Alarms A maximum of 300 historical alarms are stored You can view the historical alarms on the History Alarm page If the number of historical alarms exceeds 300 newly reported alarms will cover the former ones Figure 9 6 shows how to view the historical alarms on the LCD Parameters in the figure are for reference only Figure 9 6 Viewing historical alarms ...

Page 41: ...Figure 9 7 Figure 9 7 Deleting historical alarms 9 5 Handling Alarms 9 5 1 Mains Fault Possible Causes No AC power is supplied Measures Check whether the input voltage of the AC input circuit breaker is normal If the input voltage is abnormal supply power to the system 9 5 2 AC Over Volt Possible Causes The AC voltage exceeds the alarm threshold The AC overvoltage alarm threshold is not properly s...

Page 42: ...A rectifier is faulty The DC overvoltage alarm threshold is not properly set on the monitoring unit Measures 1 Check the Fault indicator on the rectifier If the indicator is on replace this rectifier because it is subject to overvoltage 2 Check the DC output voltage If the DC output voltage between the RTN busbar to the 48 V copper bar exceeds the DC overvoltage alarm threshold 58 V by default rec...

Page 43: ...nsor 9 5 7 Batt Under Temp Possible Causes The battery temperature alarm threshold is not properly set on the monitoring unit The heater is faulty The temperature sensor is faulty Measures 1 Adjust the battery temperature alarm threshold to a proper range 2 Replace the heater if an alarm is generated for a faulty heater 3 Replace the faulty temperature sensor 9 5 8 Amb Over Temp Possible Causes Th...

Page 44: ...f a rectifier is not connected properly reset and secure it 2 Check the storage batteries and replace faulty ones 9 5 12 Load Fuse Trip Possible Causes The load circuit breaker is OFF The circuit breaker detection wire is loose Measures 1 Check the load circuit breaker If the load circuit breaker is off but not because of short circuit switch on the load circuit breaker 2 If the circuit breaker de...

Page 45: ... reset the rectifiers one by one if the alarm persists replace the rectifier 9 5 15 Singl Rect Fault Possible Causes Only one rectifier is faulty and redundant rectifiers are provided Measures If the Fault indicator on a rectifier is steady red reset the rectifiers one by one if the alarm persists replace the rectifier 9 5 16 Multi Rect Fault Possible Causes Two or more than two rectifiers are fau...

Page 46: ...old or lower than the rectifier AC undervoltage alarm threshold 2 If the rectifier input voltage is within a normal range but the alarm persists replace the rectifier 3 Check whether the ambient temperature exceeds the upper threshold 9 5 19 Batt Off Possible Causes The battery voltage is below the lower threshold The battery temperature exceeds the upper threshold Measures 1 If the AC input power...

Page 47: ...ubleshooting measures for the SMU01C Table 10 1 Common SMU01C faults and troubleshooting measures Symptom Possible Cause Measures The major alarm indicator red is steady on A major alarm is generated Rectify faults based on the alarm information displayed on the LCD The Run indicator green blinks at 4 Hz Communications with the COM port fails Connect communications cables correctly Reset the SMU01...

Page 48: ...larm Minor Alarm History Alarm Rect Info Version Info SN Info Settings Batt Settings Batt String 1 0 1 Capacity 40AH 5 AH 1000 AH Charge Coef 0 15C10 0 05 C10 0 25C10 Com Settings Address 0 0 30 COM Port Baud 9600 9600 19200 RS485 RS232 Port Baud 9600 9600 19200 Mode Select Slave Slave Master DC Settings FC Volt 53 5V 47 0 V 56 5 V BC Volt BC Volt 56 5V 53 5 V 57 0 V FC Volt BC Volt DC Over Volt 1...

Page 49: ...nder Volt AC Settings Over Volt 280VAC 181 V AC 300 V AC AC Under Volt Under Volt 180VAC 60 V AC 279 V AC AC Over Volt Alarm Settings Alarm Severity Alarm Name Level Alarm Name Level Minor Major Digital Alarm Digital No 1 1 2 Mode High High Low Relay Relate Alarm Mains Fault Relate Relay None None ALM1 ALM2 ALM3 ALM4 Default Type NO NC NO Rect Settings Sleep Enable No Yes No Best Effi Point 70 60 ...

Page 50: ...e 00 00 0 23 0 59 System Type ETP48150 ETP48150 ETP4890 ETP4830 OLE Charger Applicable only to TP482000B L2 0B2 TP482000B L2 0B3 and TP482000B L2 0B4 No Yes No Charge Note The SMU01C restarts after you set OLE Charger to Yes and confirm the setting After the SMU01C restarts the battery charging status is displayed on the LCD Press Enter The parameter setting screen is displayed Stop Start Stop Max...

Page 51: ...al A LCD menu Issue 03 2015 01 05 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 45 Main Menu Second Level Menu Third Level Menu Fourth Level Menu Default Value Range CLR History ALM No Yes No ...

Page 52: ...5 non condensing Storage humidity 5 to 95 non condensing Altitude 0 4000 m When the altitude ranges from 3000 m to 4000 m the operating temperature decreases by 1º C for each additional 200 m Power supply Input voltage range 36 V DC to 72 V DC Maximum current 0 5 A DC Structure Dimensions H x W x D 41 8 mm x 97 mm x 208 mm Weight 1 5 kg EMC CE EN55022 CLASS B RE EN55022 CLASS B CS IEC61000 4 6 Pow...

Page 53: ...r Manual B Technical Specifications Issue 03 2015 01 05 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 47 Category Item Specifications Air discharge 15 kV criterion R MTBF 250 000 hours ...

Page 54: ...anual C Acronyms and Abbreviations Issue 03 2015 01 05 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 48 C Acronyms and Abbreviations L LCD liquid crystal display S SMU site monitoring unit ...

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