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6.5.6.3.3

 

Equalise interval 

The charge controller will automatically do an equalise charge once this timer has elapsed. 

6.5.6.3.4

 

Max charge current 

The maximum current that the batteries will ever be charged at. 

6.5.6.4

 

Battery Wizard 

 

The Battery Wizard screen allows the user to quickly select some pre-configured options. Depending 
on the selection it will pre-set the battery options as below: 

(24 / 36 / 48V) 

Sealed Lead-Acid 

Flooded Lead-Acid 

Lithium 

Bulk Initiate 

24 / 36 / 48 V 

24 / 36 / 48 V

 

24 / 36 / 48 V 

Bulk 

27.6 / 41.4 / 55.2 V  29.4 / 44.1 / 58.8 V  28.2 / 42.3 / 56.4 V 

Float 

26.4 / 39.6 / 52.8 V  26.4 / 39.6 / 52.8 V  28.0 / 42.0 / 56.0 V 

Equalise 

30 / 45 / 60 V 

Absorption period 

120 min 

120 min 

60 min 

Equalise period 

60 min 

Equalise interval 

60 days 

Max Charge Current 

85 A 

85 A 

85 A 

Sweep Interval 

30 min 

30 min 

30 min 

NOMAD USER MANUAL 

 

PAGE 

29

 

Содержание Nomad 80

Страница 1: ...NOMAD 80 User Manual...

Страница 2: ...2017 MLT Inverters 3rd Edition May 2017 NOMAD USER MANUAL PAGE 1...

Страница 3: ...ng 9 2 Advanced Features 11 2 1 Two Independent Maximum Power Point Trackers 11 2 2 Wide PV String Voltage Range 11 2 3 Ground Fault Detector Interrupter 11 2 4 Compatible with Various Battery Technol...

Страница 4: ...p Graph 20 6 4 3 Battery Graphs 21 6 4 4 Event logs 21 6 5 Settings 23 6 5 1 Settings Menu 23 6 5 2 Setup Alarms 23 6 5 3 Date Time 24 6 5 4 Relay Control 25 6 5 5 MPPT Settings 26 6 5 6 Battery Setup...

Страница 5: ...35 10 2 Battery Bank Location 35 10 3 Maintenance 35 10 4 Replacing a Battery 36 10 5 Lead Acid Battery Charging 36 10 5 1 Charging Stages 36 10 5 2 Battery charger settings 37 10 6 Lithium Battery Ch...

Страница 6: ...controller output power at high altitude 9 Figure 2 Identifying parts of the Nomad 10 Figure 3 Wall mounting 15 Figure 4 Input output connections on the Nomad 16 Figure 5 GFDI Jumper Selection Bottom...

Страница 7: ...lified electrical maintenance personnel familiar with the construction and operation of the equipment and the hazards involved Failure to observe this precaution could result in personal injury GENERA...

Страница 8: ...chedtothebottomofthemachine inside the cover 1 2 2 Contact Details Telephone 27 0 21 201 1335 Email info mltinverters com Address 103 Garfield Road Kenilworth 7708 Cape Town South Africa 1 2 3 Telepho...

Страница 9: ...rotection Ground Fault Detector Interrupter GFDI Overvoltage Photovoltaic and Battery Reverse Polarity Photovoltaic and Battery 1 3 2 Battery Input Nominal Battery Voltages 24 36 and 48 Vdc configurab...

Страница 10: ...ouch screen 4 3 inch LCD Graphs 24 hour history display of solar power production both ports battery and most recent sweep graph both ports Data and Event Logs Daily solar production kWh and peak powe...

Страница 11: ...Figure 2 Identifying parts of the Nomad PAGE 10 NOMAD USER MANUAL...

Страница 12: ...hazards since the normally grounded current carrying conductor may no longer be at ground potential The Nomad physically disconnects the PV panels to ensure site and operator safety The Nomad can be...

Страница 13: ...rnal load relays or any other simple binary logical circuit you can think of 2 7 MLT Bridge Communications Optional Add on The Bridge external optional add on enables browser based internet monitoring...

Страница 14: ...each Nomad port consult the PV panel specifications sheet and use the following formula Maximum panels per string 375 25 x 100 With Open circuit voltage at STC Coldest ambient temperature the PV pane...

Страница 15: ...roximity to the batteries Standard cables length of cable are available as optional accessories Note At high altitudes natural thermal convection natural thermal cooling of the all electrical equipmen...

Страница 16: ...s dead before touching any potential live wiring Certainelectricalconnectionsmustbeappropriatelytrainedperson Ifindoubt about anything contact MLT Inverters for assistance 1 Remove the screws that sec...

Страница 17: ...rnal protection devices such as fuses DC circuit breakers and earth leakage protection are the responsibility of the owner andnot ofMLT Inverters MLT Inverters cannot be held responsible for personal...

Страница 18: ...A solar fault exists typically an overvoltage condition Consult the screen for more information 5 2 Charge controller Status Green The Nomad is operation is normal with no faults Orange The charge con...

Страница 19: ...hboard screen shows an overview of the current charge controller operation Power coming from the each of the solar arrays and battery charging current Clicking on each of the icons takes you to the in...

Страница 20: ...screen contains a bar showing system status and indicates any known issues Next to it is the current date and time 6 3 Control Panel There are four button here with the followings functions Reset will...

Страница 21: ...ar Output Graphs The solar input screen graphically shows the amount of solar power that each of the two inputs delivers Input one is plotted in red and input two is plotted in blue 6 4 2 Solar Sweep...

Страница 22: ...o check if the panels are performing optimally 6 4 3 Battery Graphs The battery graph screen graphically illustrates the depletion or replenishing of the battery bank The green orange and red bar on t...

Страница 23: ...etected and the system has been shut down in order to protect the user 6 4 4 4 Battery High Voltage The charge controller has been shut down due to a high battery voltage 6 4 4 5 Low Battery Voltage T...

Страница 24: ...6 5 Settings 6 5 1 Settings Menu Selecting Alarms Date Time Relay Control MPPT Settings and Battery Setup will take you to their respective setting screen 6 5 2 Setup Alarms NOMAD USER MANUAL PAGE 23...

Страница 25: ...Nomad 6 5 3 Date Time Set the date and time to the current time using the up and down arrows In this example the date is the 21st of November 2014 with the time being 12h45 in the afternoon Green and...

Страница 26: ...owortheloadishigher than is economical to run purely of batteries The relay will open again once a bulk charge is completed 6 5 4 1 Warnings When a battery critical flag is set the auxiliary relay wil...

Страница 27: ...be configured to detect ground faults on both positively and negatively grounded photovoltaic arrays as well as negatively grounded battery banks See the Chapter 8 Ground Fault Detector Interrupter GF...

Страница 28: ...Setup 6 5 6 1 Battery Setup Access Code Before entering the custom Battery Setup screen a password will be requested The password is hard coded to 1918 6 5 6 2 Battery Voltage Setpoints NOMAD USER MA...

Страница 29: ...urrent charge is done 6 5 6 2 3 Float The battery is kept at float after the charging is complete 6 5 6 2 4 Equalise Some types of batteries require a periodical equalise charge 6 5 6 3 Battery Timer...

Страница 30: ...figured options Depending on the selection it will pre set the battery options as below 24 36 48V Sealed Lead Acid Flooded Lead Acid Lithium Bulk Initiate 24 36 48 V 24 36 48 V 24 36 48 V Bulk 27 6 41...

Страница 31: ...ns the charge controller must be manually reset by selecting the appropriate option from the control menu 7 2 Description of Warning and Faults 7 2 1 Operating Temperature Limit Reached If the interna...

Страница 32: ...tage returns to an acceptable level the charge controller will resume battery charging 7 2 4 Incorrect Nominal Voltage If the battery voltage is far outside the acceptable nominal range the charge con...

Страница 33: ...w through the ground fuse causing the fuse to blow at 600mA Once the fuse blow the voltage difference is detected and the Nomad will stop operation and display a warning message indicating that a grou...

Страница 34: ...performance Select this option if your solar panel needs to be positively grounded 8 1 4 PV Floating If you wish to leave the photovoltaic panels floating do not select any jumpers Then disable the GF...

Страница 35: ...6 5 4 Relay Control for options Pin 2 Normally Closed Relay Pin 3 Relay Common Pin 4 5V A temperature sensor with a 10mV C 0V at 0 C scale can be connected and the Nomad will automatically throttle b...

Страница 36: ...free Deep cycle batteries are available only in the flooded variety If standard batteries are suitable maintenance free type should be selected as they do not require topping up of their electrolyte d...

Страница 37: ...aninsulatedspannerwhenconnectingordisconnectingindividualbatteriesorbattery banks All electrical connection must be made aqualified person 10 5 Lead Acid Battery Charging 10 5 1 Charging Stages The No...

Страница 38: ...4 Stage 4 Float Taper Charge Period Hours 10 The current into the battery cells is reduced at a rate that allows the voltage on the cells to remain constant at the float voltage level If an auto start...

Страница 39: ...arge Current Royal 95E41R 100 Ah C20 10 A Trojan T105 T105RE 225 Ah C20 29 25 A FNB MIL15P 490 Ah C100 140 FNB MIL17P 560 Ah C100 160 FNB MIL21P 700 Ah C100 200 FNB MIL25P 840 Ah C100 240 FNB MTL25P 1...

Страница 40: ...y banks 10 6 1 Battery charger settings It is important to select the correct charging current and voltage for your batteries during the installation of your Nomad If you increase or decrease your bat...

Страница 41: ...s Analogue Charge Control selected If it is selected under MPPT settings and the appropriate cable is not connected charging is disabled 11 2 2 Why didn t I get the usual capacity from my storage batt...

Страница 42: ...d businesses GFDI A ground fault is the undesirable condition of current flowing through the grounding conductor The cause of this undesirable current flow is an unintentional electrical connection be...

Страница 43: ...Appendix A Sample Single Line Wiring Diagram PAGE 42 NOMAD USER MANUAL...

Страница 44: ...NOMAD USER MANUAL PAGE 43...

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