enatel rectifier commisioning

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    FIAMM Batteries are configured as standard in the CK Street CabinetCharge voltages need to be changed if Northstar are used with the Enatel

    Rectifier System.This booklet shows the differences and gives instructions how to make the

    changes.

    Commissioning and Maintenance troubleshooting approaches are

    discussed.

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     Telkom Mobile Street Cabinet Configuration Booklet

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    ABOUT ENATEL

    We are specialists in the design and manufacture o f a range of standby power solutions for thetelecom, networking, wireless and industrial markets. Enatel’s smart power design offers intelligentsolutions at an empowering price.

    Our knowledge and experience of the global marketplace, along with our talented team, enable us tocreate power supply solutions that meet each customer’s unique specifications.

    .......................................................................................................................................................................................................................................................

    ABOUT ENATEL 2 

    OVERVIEW OF THE STREET CABINET 3 

    GETTING CONNECTED WITH SM3XCONFIG -IF YOU NEED SM3XCONFIG ON YOUR LAPTOP  3 

    CHARGING OF STANDBY BATTERIES - USUALLY AGM SEALED LEAD ACID TYPE  4 

    STANDARD FIAMM AND ALTERNATIVE NORTHSTAR BATTERY CHARGE SETTINGS 4 

    EXAMPLES FROM SM3XCONFIG FOR CK STANDARD CABINET FIAMM SETTINGS 5 

    CHANGES REQUIRED IN SM3XCONFIG IF NORTHSTAR BATTERY IS INSTALLED 6 

    ALARM MAPPINGS TO RELAYS 7 

    ALARM TESTING 7 

    TROUBLESHOOTING ADVICE 10 

    TELECOM MOBILE CHECKLIST FOR SITE NAME 11 

    Draft 1 December 2010

    Due to product development specifications and pricing are subject to change without prior notice.

    Errors and omissions are e xempt.

    Pictures may be representative,

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     Telkom Mobile Street Cabinet Configuration Booklet

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    OVERVIEW OF THE STREET CABINET

    Street Cabinet Locked closed

    Street Cabinet before Huawei BTS is in stalledNote 2 Strings of FIAMM Batteries are fittedBattery capacity is supplied as 3 strings standard .

    GETTING CONNECTED WITH SM3XConfig -if you need sm3xconfig on your laptop 

    The Enatel Support CD is shipped with every system along with hard copy of the abovedocuments. Install the setup file. After installation you need to check that you can establish USB

    communications to the Enatel Controller. Plug in a USB to miniport USB cable. Rest your laptop onsomething flat and stable.

    If Scan port does not find the USB port you may have to go into Control Panel\ System\ HardwareDevice manager \ USB port and load the USB driver located in the Program file\Enatel\sm3xconfiguratio\drivers folder.

    Once USB is connected click start scanning on the monitor page and you should see the systemvoltage and currents. Provided the Enatel system is powered up !!!  

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    CHARGING OF STANDBY BATTERIES - usually AGM sealed lead acid type 

    Modern sealed lead acid batteries require precisevoltage control from an intelligent rectifier systemto maximize there performance when they arerequired to power the load during periods whenthe AC Mains is not available. Each battery can

    have different manufacturing values becauseeach manufacturer feels a different combination isvalid. The values stated on the front label are thebest ones to use.They will be stated as a charge voltage at acertain temperature. In the manufacturesapplication da ta, there will be specified a slope bywhich the voltage must be varied as the batterytemperature changes. This minimizes overchargeat high temperature and increases the batterycapacity at low temperatures. The batterytemperature sensor must be reading accuratelyand located near the centre of the battery.

    FIAMM UMTB160, FFT160, FIT180 require2.27V/Cell @ 20Cwith -2.5 mV/Cell/C rise temperature compensation

    Northstar NSB155, NSB170 require2.29V/Cell @ 20Cwith -4 mV/Cell/C rise temperature compensation

    Each battery must have its C10 and C4 rateloaded if the time re maining calculated screenis to be accurate.  A 180Ahr battery will deliver 18amps for 10 hours so C10=180, however over 4hours it will provide 20% less there C4=144 or 38Afor 4 hours. 

    STANDARD FIAMM and Alternative Northstar Battery charge settings

    Enatel Supervisory software needs to have the float voltage parameter entered for 25C so the CK shelteras supplied with a FIAMM Battery has the float voltage set to 54.2 Volts   with temperature compensationslope o f -2.5mV/C//Cell rise in battery temperature.

    ALTERNATE SETTINGS for Northstar batteries – only to be used when a F IAMM battery is notavailable 

     At 25C the float voltage that must be loaded into the Enatel Supervisory module forNorthstar  = 54.48V (2.29V x24Cells) – (4 mV x 24 Cells x 5C)The Northstar float voltage is higher because they use a higher specific gravity acid and needs morecompensation for temperature changes. i.e -4mV/C//Cell . 

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    EXAMPLES FROM sm3xconfig for CK Standard Cabinet FIAMM settings

    From configuration file 5U8(Street-Cabinet-PSC14070521-107)

    Rectifier Float Voltage Set point = 54.2 V 

    Temperature Compensation slope = -2.5mV/ C/ Cell 

    FIAMM Battery capacity = 480Ahr INSTALLER MUST Check and correct this setting if necessaryNote 3 strings of the o ld UMTB160 is 480 Ahr.Three strings of the new FIT180’s is C10 540AHr and C5 = 460AhrSee the Northstar section for how to load the correct values.

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    CHANGES required in sm3xconfig if Northstar battery is installed 

    Rectifier Float Voltage Set point = 54.48 V

    Charging at 54 volts as per Battery technologies rectifier setting turns a Northstar 170Ahr battery into a150 Ahr as it is undercharged

    When you change the float voltage setting, the numbers will go red and a “W” will appear alongside.To write the new number into the controlers memory you must log in as customer.You must be authorized to get this password from Telkom Mobile or CK.

    Temperature Compensation Slope = -4 mV/ C/ Cell

    Make sure the temperature sensor is indeed positioned near the centre of the battery and is not stillcoiled up in the rectifiers hot exhaust air stream.

    Battery Capacity for 3 strings of NSB170

    C10 = 3 x 170 = 510 Ahr less if only two stringsC5 = 440 Ahr less be cause of the faster discharge being less efficient

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    ALARM M APPINGS to RELAYS

    By clicking of each of the four relays in the Relay/Output Logic view of sm3xconfig, you can see whatconditions create each alarm. Remember the live configuration in the Supervisory module is always thecurrent version.

    See example for Relay 1 below

    SummaryRelay 1 = Battery Integrity = Battery Temperature h igh OR Battery Temperature sensor faulty

    ( disconnect to test )Relay 2 = Battery Low = Battery below Low Float volts setpointRelay 3 = All Rectifiers failed i.e. Mains failRelay 4 = A rectifier m odule has fail e

    ALARM TESTING

     Alarm wiring needs to be tested end to end by simulating the approriate alarm condition and checking thesite and a larm name are correct at the alarm monitoring centre.

    To see what alarms in the Supervisory module are extended please look at the Relay/ Output Logic withsm3xconfig connected to the site you are working at. Beware the actual configuration is always the latestone and copies on your hard disk could be out of date.

    Here are the a larm connection details.

    () () ()

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     Telkom Mobile Street Cabinet Configuration Booklet

    RJ45 Jack to SAM (Inala system)

    Alarm Descriptions

    Your/Label Description Program Description Gate Relay No.

    Battery IntegrityBattery Temperature High OR

    1Battery Temperature Fault -

    Battery Low Low Float (Bus 1) - 2

    Rectifier Syst em Fail All Rect ifier Fail - 3

    Rectifier Module Fa il Rectifier Non Urgent - 4

    DC Fan On Battery Temperature High - -

    DC Light On

    AC Phase 1 Lost /All Rectifier Fail OR

    -AC Phase 2 Lost /All Rectifier Fail OR

    AC Phase 3 Lost /All Rectifier Fail -

    Pin 8Pin 1

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    The Battery Low Alarm signals that the battery has discharged deeply. It is triggered by the bus voltagedropping below the Low Float Volts Alarm Bus 1 Set point. Typically when the low volts a larm is set a t45.60 volts like below it means the battery is in the last third of its discharge and you can expect the siteto run for half the time the AC Mains has presently been out before the LVD disconnect at 43V occurs.LVD Set point is be low the alarm values.

    You can raise the low float alarm bus 1 set point to above the present bus voltage while the battery isdischarging to test that battery low Relay2 is working correctly provided you put it back to the originalsetting afterwards.

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    TROUBLESHOOTING ADVICE 

    There are two types of troubleshooting and each needs a different approach.

    The first is commissioning when no part of the system can be assumed to be wired or operating correctly.This requires a commissioning engineer who can understand the interfacing between the various parts ofthe plant and can check wiring then simulate alarms to test the end to end connections. Most of the majorchecks are, “Is the DC polarity of the battery and load correct.” The alarms can how ever be quite timeconsuming if they do not work first time. Sometimes several equipment specialists need to be co-ordinatedduring commissioning, but the person who has the best understanding of the systems that interact. It is ateam effort to get a BTS site going.

    The second type is when the system has run correctly for some time and develops a fault. In this scenarioone must convince themselves that something quite fundamentally simple has happened.

    Red lights mean Urgent Alarm module malfunction,Orange Light means Non Urgent Alarm symptom may go awayGreen Light is all go

    When alarms are up more detailed in formation on the type of alarm is available via the front panel orOn your laptop.

    If a rectifier has shutdown due to high DC volts it may recover by unplugging it, allow a minute and then

    plug it back in. Should the rectifiers all be shutdown then try the same and look for some interference onthe DC bar.

    If the battery voltage is very low below 43Volts the rectifiers will not be charging the battery because theyhave no AC Mains and the LVD has tripped. Restore AC power to get the site going again.

    If one or more modules are showing failed and others are going check that all three AC phases are presentbefore returning the supposed modules for repair. It is common for modules to be returned and checked asno fault found when a single AC phase is lost for long periods. This is a waste of time for all involved in therepair process.

    Other trouble shooting tips from CK Maintenance Manager

    1) Logic error, check I/O board2) For unusual high/low temperature readings check that the temperature sensors is in the correct place.3) If module has a non argent alarm on the module and not on the SM32 , push module in correctly.

    If the site has been running fine for a long time usually only one relatively simple problem exists and thesymptoms will lead you to the cause. Most parts are modular and can be replaced. Always carry a spareRM2048XP in your vehicle when going to a Rectifier failed maintenance check.

    Battery Low can initiate an operational callout where a portable generator is towed to the site and p rovidesemergency AC power until the mains is restored.

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    TELECOM MOBILE Checklist for Site Name

    Step Number Description Comment Pass/F ail

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