Grundfos Alldos DDI-209 User Manual - Industry Surplus Australia

FE: e.g. "7" (only for Flow Monitor)• Use the "Up" and "Down" buttons to set the"number of error strokes permitted duringoperation". If the number of error strokes isexceeded, the "Flow error" error messageappears.Selection of unit (display)"Unit l/h" or "Unit gph" appears in the display.• Use the "Up" and "Down" buttons to switchbetween:– "Unit l/h": Unit Q = l/h, and– "Unit gph": Unit Q = gal/h.• Press the "Start/Stop" button (confirm the settingand close the service level), or• press the "Menu/Info" button for a minimum of10 seconds (confirm the setting and open thepump selection).Pump selectionCaution"-0.4", "-2.2", "-2.5", "-5.5", "-13.8" or "-20" appearsin the display.• Use the "Up" and "Down" buttons to switchbetween the pump types DDI 0.4-10, DDI 2.2-16,DDI 2.5-10, DDI 5.5-10, DDI 13.8 and DDI 20-3.• Select your pump type, which is indicated on thepump nameplate.• Press the "Start/Stop" button and switch thepower supply off, then back on again (confirm thesetting and close the service level).9.8 Resetting to default settingsYou can reset the first and second function levels tothe default settings while the power supply is beingconnected.NoteThe actual pump type must always beselected to ensure error-free operationof the electronic control function.Otherwise the displayed pump andsignals differ from the actualconditions.The service level settings (pump type,unit of display for the dosing flow, inputand output settings) and the values forthe total dosing capacity and operatinghours counter remain as they are.The pump is disconnected from the power supply.1. Simultaneously press the "Up" and "Down"buttons and hold them down.2. Switch on the power supply.– "boot" appears in the display.3. Release the "Up" and "Down" buttons.– All modified settings at the first and secondfunction levels are reset to the default settings.9.9 Current signal control0-20 mA / 4-20 mAFor controlling the dosing pump via an externalcurrent signal of 0-20 mA (4-20 mA)Fig. 47 Display: 0-20 mA current signal controlFig. 48 Display: 4-20 mA current signal control• The flow rate is proportional to a current inputsignal of 0-20 mA (4-20 mA).• Above 19.5 mA, the pump runs in continuousoperation at maximum dosing flow (Q max. ).• Below 0.2 (4.2) mA, the pump switches off.NoteNote0-20mAAnalogl/h0Run4-20mAAnalogRun2.50Default setting for Q max. is the dosingflow up to 3 bar (default calibrationvalue). Once the pump has beencalibrated, the current signals must beweighted. See sections 9.9.2 Withcalibrated pump and 9.9.3 Setting theweighting.The pump must be started first in thisoperating mode (LED lights up greenand "Run" appears in the display).• Use the "Start/Stop" button to start or stop thepump.4-20 mA current signal controlIf the current input signal falls below 2 mA, the errorrelay is switched, as an error has probably occurredat the signal source or on the cable.• The error signal relay switches on. The LEDflashes red.• "4-20 mA" and "ERROR" flash in the display.4-20mAAnalogRun0.000ERRORl/hl/hTM03 6603 4506TM03 6604 4506TM03 6605 4506Fig. 49 Display: 4-20 mA current signal control47