Nilfiskfood MU421 Control Panel for Hybrid Units User Manual

June 5, 2024
nilfiskfood

Nilfiskfood MU421 Control Panel for Hybrid Units

Nilfisk Food MU421 Control Panel for Hybrid Units

Description

This software manual describes the operation of the control panel of the advanced Single Booster unit (SB and SBHL). The advanced SB unit is operated via the control panel (see below illustration).

  • OFF
    • Button (1) switches OFF the unit.
  •  ON/STANDBY
    • Button (2) switches ON the unit.
  • ERROR
    • Error light indicator (3).
  • NAVIGATION BUTTONS
    • The four ”arrow” navigation buttons (4) are used for navigation in the display menu. Pressing the ”OK” button activates the menu and confirms any activity displayed

DISPLAY

Display layoutNilfisk Food MU421 Control Panel for Hybrid Units
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  • When switched on the display will show an arrow symbol in the top right corner equivalent to the active navigation buttons on the control board.
  • The arrows illustrate that it is possible to scroll up and down between the menus. Scrolling to the right makes it possible to enter a value. Set the value scrolling up (+) or down (-) to set the value higher or lower accordingly. Confirm by pressing ok.
  • A letter combination for easy reference in connection with service work will appear in the top right corner of the display.

Modes

Power On

The very first time the unit is switched on, we recommend setting date and time in the Setup menu, settings, display EP. If date and time is not set, date and time will count from the pre-set default date and time

Set date and time using navigation buttons.

Standby
The start up display will look as the one below. Display for SB model with High- and Low pressure – Select either HP or LP using arrows up & down

Run Mode

Single Booster with high and low pressure

The following screen displays will appear when the unit is in Run Mode.

  • Screen display for High pressure unit in Run Mode.
  • Scroll down to return to STANDARD pressure.
  • Screen display STANDARD pressure.
  • Scroll up to choose HP and scroll down to choose LP.
  • Screen display for Low Pressure unit in Run Mode.
  • Scroll up to return to STANDARD pressure.Nilfisk Food MU421 Control Panel for Hybrid Units 6

Please note that you will remain in HIGH or LOW pressure Run Mode until otherwise is selected.

Power Of

  • When the unit is off the display will only show a small dot in the top right corner.
  • In Off mode it is possible to access all menus without the pump running by pressing the OK button on the panel.
  • Dot is equivalent to the OK confirm button on the panel

Error/WarningNilfisk Food MU421 Control Panel for Hybrid Units
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  • In case of an error, “ ERROR” will appear on the display screen.
  • Press the OFF button to switch of unit.
  • If the error remains when the unit is switched ON again, please Press right arrow to see current error.
  • In case of a warning, “WARNING” will appear on the display screen. When a warning is detected the machine will either stop or run with limited performance until the cause of the warning has been improved (eg. inlet pressure).
  • To see further error/warning list and possible cause and remedy go to section 5.2.

Content of Main- and Submenus

The control panel contains the below main menu screen displays. Scroll between the menus using the navigation buttons. Each main menu contains submenus which will be described subsequently.

Overview of Main- and Sub-menus

  • Info (A)
    •  Σ Counters total (AA)
    •  Σ Counters trip (AB)
    •  Service center(AD)
    •  Machine info (AE)
  • Errors (B)
  • Setup (C) (default password 6802)
    •  Password (CA)
    •  Settings (E)
    • Post run time (ED)
    • Dry run level (EE)
    • Standard pressure (ER)
    • High pressure (EA)
    • Low pressure (EB)
    • Startup method (EY)
    • Pressure start level(EX)
    • Startup delay (EW)
    • Quick Start level (EC)
    • Auto off delay (EZ)
    • Accelleration time (EU)
    • Date & Time (EP)
    • Service text (EJ)
    • Inverter power (EO)
    • Backlight intensity (EI)
    • Display contrast (EV)
    • User password (EL)
    • Standard settings (EK)
  • Languages & units (F)
    • Language (FA)
    • Units (FB)
  • Supply Tank (H)
    •  Readings (R)
    • Pump state (RA)
    • Outlet pres. (RB)
    • Water temp (RC)
    • Supply pressure (RD)
    • Flow Status (RF)
    • Tank control OFF (HA)
    • LLA Detect Delay (HB)
  • Communication (I)
    • Firmware Upgrade by cable (IC)
    • Firmware Upgrade by infrared (ID)
  • I/O Settings (J)
    • Output 1 (JA)
    • Output 2 (JB)
    • Input (JC)
  • Installation (K)
    • Install password (KA)
  • Resets (D)
    • Reset trip counters(DA)
  • Readings (R)
    • Pump state (RA)
    • Outlet pres. (RB)
    • Water temp (RC)
    • Supply pressure (RD)
    • Flow Status (RF)

Content of the Info menu

  • Please note that the Info menu is only for display – all data must be typed in via the setup menu!Nilfisk Food MU421 Control Panel for Hybrid Units 10
  • Displays accumulated consumption of power and operation hours.
  • Displays accumulated consumption of power and operation hours.To reset the trip counter go to the setup menu.Nilfisk Food MU421 Control Panel for Hybrid Units 12
  • Displays name and tel. no. of service technician.Nilfisk Food MU421 Control Panel for Hybrid Units 13
  • This display view is only ment as an example, SW ID and CT ID shows the current SW version.
  • Displays Software version and Pump size, machine configuration and inverter software version.

Content of the Errors menu – CAUSE & REMEDY

Example of Error log screen display:

  • All error occurrences will be stamped with date and time.
  • E indicates Error number. P indicates Pump number

Error ListNilfisk Food MU421 Control Panel for Hybrid Units
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Hybrid Units 16

Content of the Setup sub menu SettingsNilfisk Food MU421 Control Panel
for Hybrid Units 17

Content of Setup menuNilfisk Food MU421 Control Panel for Hybrid Units
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Password Note: The default user password is 6802. Enter the settings menu to change the default password. To avoid unintended access to the system the your local service technician. can insert a blocking preventing access to the password-controlled menus.

  • * Set Post run time.
    • Set dry run level.
    • Set standard pressure.
    • Set high pressure.
    • Set low pressure.Nilfisk Food MU421 Control Panel for Hybrid Units 24
      • Set Quick start level.
      • Set date and time
      • Enter name and tel. no of Your local service technician.
      • Set rated power of frequency inverter
      • Set the backlight intensity.Nilfisk Food MU421 Control Panel for Hybrid Units 29
      • Create new user password (default 6802).

Submenu Language & UnitsNilfisk Food MU421 Control Panel for Hybrid Units
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Submenu Supply tankNilfisk Food MU421 Control Panel for Hybrid Units
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Submenu CommunicationNilfisk Food MU421 Control Panel for Hybrid Units
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Submenu I/O SettingsNilfisk Food MU421 Control Panel for Hybrid Units
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Output 1 options:

  •  None – No function
  •  Error – Active if an error are detected
  •  Run/Stop – Active if booster is running and not active when it is stopped.
  •  Standby /off – active if booster is running or in standby.

Output 2 options:

  •  None – No function
  •  Delay start – Gives a signal at this port, before starting the pump.
  • The length of the delay is set in the settings menu, startup delay. This function could for instance be used to secure start-up of the pressure pump before starting the unit.

Input

  •  None – No function
  •  Release – unit unable to start before this signal is present.
  •  Setpoint – Output pressure is controlled by external voltage source.
  •  Chem. Low – Low level in chemistry can

Submenu Installation

Submenu ResetNilfisk Food MU421 Control Panel for Hybrid Units
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Content of ReadingsNilfisk Food MU421 Control Panel for Hybrid Units
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**

**Upgrade Firmware

Upgrading from software 5.02 or higher.

Upgrade display using USB Cable

  1.  Connect USB cable (Item No. 110007887) to PC USB port (Remove other USB cables connected to PC)
  2.  Connect Display cable to USB cable
  3.  In the menu go to, Setup->”password”->Communication-> Firmware upgrade by cable- >Confirm Firmware upgrade and press “OK”
  4.  Display should now be looking like this: Upgrade Ready Power Cycle and Start PC App.
  5.  Disconnect display from usb cable and connect it again (Power cycle)
  6.  Make sure the Green “ON” led and the red “OFF” led at the display is both on, display is blank
  7.  Startup PC program FWU200.exe (can be downloaded from Nilfisk Food website)
  8.  Window should be looking like this
  9.  Press ”Browse” button Select the file you will use for upgrade. Software File can be downloaded from Nilfisk Food website. The name of the file should end with “.hex”. Ex V4.14_SB_DISP.hex
  10.  When the file is located press “Open” in browser window
  11.  The file name will now be written in file text line
  12.  Press UPGRADE button in FWU 200 tool After a short while the FWU tool should start upgrading, the upgrade button should turn Yellow and change to “RUNNING” The progress bar “Program” must go to the end before the upgrade is complete (less than 1 minute)
  13.  When the upgrade is complete the FWU tool should be looking like this, Button turns Green and text changes to “DONE/NEW” Now the display is upgraded
  14.  To verify software version in display, in the menu go to, Info->Machine info
  15.  Here you will find display software version and control software version. SW ID “Display software”, HW ID “type of device”, CT ID Controller board software(if display is not connected to a control board, control software will be 0/300)

Upgrade display using IrDA Cable

  1.  Connect power to equipment
  2.  In the menu go to, Setup->”password”->Communication-> Firmware upgrade by Infrared- >Confirm Firmware upgrade and press “OK”
  3.  Display should now be looking like this Turn Off equipment and turn it on again (Power cycle)
  4.  Make sure the All three led’s are on (Green “ON”, red “ERROR” and red “OFF”) and the display is blank
  5.  Connect Irda module (Item No. 110001558) to PC USB port
  6.  Place Irda module on display module like this Startup PC program FWU200.exe (can be downloaded from Nilfisk Food website)
  7.  Window should be looking like this
  8. . Press ”Browse” button
  9. . Select the file you will use for upgrade. Software File can be downloaded from Nilfisk Food website. The name of the file should end with “.hex”. Ex V4.14_SB_DISP.hex
  10.  When the file is located press “Open” in browser window
  11.  The file name will now be written in file text line
  12.  Press UPGRADE button in FWU 200 tool After a short while the FWU tool should start upgrading, the upgrade button should turn Yellow and change to “RUNNING”
  13.  The progress bar “Program” must go to the end before the upgrade is complete (less than 1 minute)
  14.  When the upgrade is complete the FWU tool should be looking like this, Button turns Green and text changes to “DONE/NEW”
  15.  Now the display is upgraded
  16.  To verify software version in display, in the menu go to, Info->Machine info
  17. Here you will find display software version and control software version. SW ID “Displaysoftware”, HW ID “type of device”, CT ID Controller board software(if display is notconnected to a control board, control software will be 0/300)

Upgrade Inverter

  1.  Power off unit using service switch (wait for unit to discharge approximately 5 min.)
  2.  Open Inverter box
  3.  Disconnect the Display cable connected to either of the two modbus terminals4. Connect the usb cable (110007946) to either one of the modbus connectorsNilfisk Food MU421 Control Panel for Hybrid Units 52
  4.  Connect usb cable to PC
  5.  Power on inverter by using service switch (AWARE OF HIGH VOLTAGE IN INVERTER!)
  6.  Start up Firmware upgrade program (Can be downloaded from Nilfisk FOOD web)
  7.  Click browse to select upgrade file *.hex (Can be downloaded from Nilfisk FOOD web)
  8.  Click in Serial port up/down to select the com port for USB cable, if comport is not showing press “refresh” button
  9.  If necessary change inverter ID to match Inverter ID, Default is 1
  10.  Press Upload Firmware, and wait for the progress bar to reach the end and turn green
  11. The progress bar will start moving
  12.  Power off unit using service switch (wait for unit to discharge approximately 5 min.)Nilfisk Food MU421 Control Panel for Hybrid Units 54
  13.  Disconnect the usb cable from the inverter
  14.  Connect the display to Modbus connector again
  15.  Mount the lit of the inverter box
  16.  Turn unit back on.

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