Jesco MAGDOS LK Operating Instructions Manual

OperationExternal On/Off via Release input 39© Lutz-Jesco GmbH 2015Subject to technical changes.150225BA-10221-02-V03Stepper Motor-driven Diaphragm Dosing Pump MAGDOS LK Operating InstructionsOn the basis of the water meter‘s values (ml/pulse, l/pulse or m3/pulse) and the delivered dosing capacity (output) , the dosing pumpautomatically determines the stroke frequency. If the dosing pump‘smaximum output is exceeded during a fast sequence of pulses, thesystem issues a warning message.i If you enter contradictory parameters, the system displays thiswhen you try to save them (Menu 3.41). It is not possible toactivate the operating mode without correcting the param-eters.11.2.2.4 Configuring the pulse input mode1. Press Setup.4 The dosing pump displays the current configuration of this operatingmode's parameters (Menu 3.31).2. Press Setup.3. Use the or key to choose a parameter of the mode and press OK.4. Press the + key to increment the parameter's value or the - key todecrement it.5. Press OK.4 The dosing pump displays the current configuration of this operatingmode's parameters (Menu 3.31).6. Press OK.4 The dosing pump displays the start screen of Pulse input mode.11.2.2.5 Starting the dosing pumpPrecondition for action:ü The dosing pump has been connected in accordance with thechapter entitled “Pulse input“ (see page 27).1. Press Start.2. Apply a pulse to the dosing pump‘s pulse input.4 The dosing pumps starts dosing immediately. The systemauto matically calculates the resulting delivery capacity and displaysit.ü Dosing pump has started.11.2.2.6 Stopping the dosing pumpè Press Stop.ü Dosing pump has stopped.11.2.2.7 Clearing the stroke bufferè Press Reset.4 All the strokes in the accumulator that are still pending are deleted.The dosing pump stops; however, it is still active and waiting for thenext pulse.ü The stroke buffer has been cleared.11.3 External On/Off via Release inputRegardless of the selected operating mode, you can start or stop theMAGDOS LK dosing pump by means of the closed switching contact onthe Release input.If you set the function (see “Set „Release input“ menu item“ on page 30),the system displays in the selected operating mode the symbol forconfiguration of the Release input (see also “Explanation of the menuicons” on page 28).Analog inputMenuStartLiterh0%0.00SetupFig. 50: Start screen of Analog input with icon for open contact11.3.1 Starting the dosing pumpIf Run = contact is set:è Close the switching contact on the Release input.ü Dosing pump has started.If Run = open is set:è Open the switching contact on the Release input.ü Dosing pump has started.11.3.2 Stopping the dosing pumpIf Run = contact is set:è Open the switching contact on the Release input.ü Dosing pump has stopped.If Run = open is set:è Close the switching contact on the Release input.ü Dosing pump has stopped.11.4 Decommissioning the dosing pumpPerform the following working steps:1. Stop the dosing pump in accordance with the selected operatingmode.2. Unplug the dosing pump‘s mains plug from the power supply.3. Disconnect all electrical connections.4. Depressurize all the hydraulic parts in the system.5. Unplug all the hydraulic connections on the dosing pump.6. Empty the dosing head.7. Remove any residual dosing medium from the dosing head byflushing the system with a washing agent. Ensure that the washingagent is compatible with the dosing medium.ü Dosing pump is decommissioned.