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Eltek Flatpack2 Touchscreen Controller Kit Adam Maurer VK4GHZ, 28 July 2020This controller connects to a single Eltek Flatpack2 HE 48V/2000W (or 48V/3000W) rectifier and providesmonitoring of these parameters: AC Volts inDC Volts outLoad currentIntake temperatureOutput temperatureOperating statusAlarm & warning messagesConnectionsPower:use supplied 2-way 0.1" polarised connector. Connect to Flatpack2’s DC outputCAN bus:use supplied 3-way 0.1" polarised connector. Connect to Flapack2’s CAN busTouch Screen: use supplied 4-way lead, taking note of wire coloursController board mounting suggestionUse adhesive feet (4 supplied) to fix PCB to Flatpack2 enclosure.Page 1
120 ohm CAN bus termination jumperAs supplied, the 120 ohm CAN bus termination resistor is enabled.To remove the 120 ohm termination on the CAN bus adapter board:Disconnect power. Lift off CAN adapter board, remove J1 jumper. Refit board.If the CAN bus lead is relatively short and J1 jumper is fitted, a 120 ohm resistor at the rear of the FP2 (ie; on thebreakout PCB) may not be required.Touch Screen Protective LayerTo prevent scratches, remove protective layer film AFTER the screen cut out and mountingholes have been prepared in the enclosure, and you are ready for final screen installation.Controller ScreensMain ScreenOutput voltage can be shifted up or down in 200mV steps by touching the UP/DOWN arrows.This does not affect the default start up voltage.Main Screen SET ButtonShort touch:resets screen saver (if Screen Saver is enabled)Long touch:takes you to the Set Menu pagePage 2
Parameter Font and ColoursForeground and background colours of each parameter (Status, ACV in, Intake Temp, Output Temp, DCV out, I out,Warning messages, Alarm messages) can be adjusted to your preference.Example: Set DC Volts Output Font:Simply touch the parameter to set the colour and font.Font/Colour Settings pageThere is a choice of two fonts.Touch the checkbox to toggle between fonts.Adjust R, G & B sliders to set the desired foregroundand background colours.Touch Exit to save and exit.Set MenuHelp Screens?(question mark), touch that text to seeWhere you see acontext sensitive help.To exit help screens wait 10 seconds for automaticreturn or touch Exit to exit help screen immediately.Page 3
Screen Settings page Screen brightness5 - 100% Screen saver in minutesenter 0 to disable screen saverThis value is displayed on the main page Output voltage 2 decimal place checkboxunchecked 1 decimal placeGeneral Settings pageInitial settings on this page are from factory testing.You will need to set these for yourselfwhen you have connected to your ownFlatpack2. Current Limit entered as deciAmps by keypadeg: 2 0 0 deciAmps 20.0 A Long ‘walk-in’ checkboxunchecked short walk-inchecked long walk-inSetting walk-in & current limit – not what you expect!Initially toggle walk-in checkbox for desired preference.Touch the current limit number entry box to enter your desired current limit value in deciAmps.Exit General Settings.Walk-in and current limit are only set when the outputvoltage is adjusted up or down with the arrow buttonsIf you have already set your default start-up volts, it’s safe to adjust volts down by 200mV, and then back up again.This will set walk-in and current limit to your preferences. Complaints should go to Eltek!A change of walk-in takes effect next time the Flatpack2 is powered up.Current Limit Keypad page Current Limit in deciAmpseg: 2 0 0 20.0 Ampseg: 0 5 0 5.0 AmpsPage 4
Set Default Volts pageFlatpack 2's default start-up voltage can be set between 43.50 - 57.60V.To set the desired start-up voltage touch number entry box for keypad pageSet Default Voltage Keypad page Voltage entered as deciVolts on keypadeg: 4 8 0 0 48.00VNote: an invalid entry will create an error messageTouch OK to exit keypadTouchorSet Default Volts: wait 15 seconds before voltage changesExit: will cancel setting voltagePage 5
Warnings & AlarmsIf an alarm state or warning state (or both) is detected, the appropriate icons become red.Touching either of these icons will take you to the Warning/Alarms page.Warnings/Alarms pageThe rectifier's serial number is also displayed on this pagewww.vk4ghz.comVK4GHZForum: www.vklogger.comPage 6
Complaints should go to Eltek! A change of walk-in takes effect next time the Flatpack2 is powered up. Current Limit Keypad page . Flatpack 2's default start-up voltage can be set between 43.50 - 57.60V. To set the desired start-up voltage touch number entry box for keypad page Set Default Voltage Keypad page Voltage entered as deciVolts on keypad eg: 4 8 0 0 48.00V Note: an invalid .
