MLT Inverters Nomad 80 User Manual Download Page 13 | Manualshive

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MLT Inverters Nomad 80 User Manual Download Page 13

2.6

Auxiliary Relay control

A single, no voltage dry-contact auxiliary relay can be controlled with the user
settings menu. This relay can be used to control external 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 and control of the
Nomad charge controller. The Bridge must be connected to an internet network.

Visit our website for further details.

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NOMAD USER MANUAL

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Summary of Contents for Nomad 80

Page 1: ...NOMAD 80 User Manual...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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

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