Danfoss VLT 2800 Manual
Also see for VLT 2800: Operating instructionsManualInstruction manualQuick guideDesign guide
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Setup 2 contains the following preset references:Par. 215 Preset reference 1 = 40.00%Par. 216 Preset reference 2 = 50.00%Par. 217 Preset reference 3 = 70.00%Par. 218 Preset reference 4 = 100.00%This table shows what the output frequency is:Preset ref.,msbPreset ref.,lsbSelection ofSetupOutput frequency[Hz]0 0 0 2.50 1 0 51 0 0 101 1 0 17.50 0 1 200 1 1 251 0 1 351 1 1 50Connection of mechanical brakeUse of the relay for 230V AC brakePar. 302 Digital input = Start [7]Par. 304 Digital input = Coasting stop inver-ted [2]Par. 323 Relay output = Mechanical brakecontrol [25]Mechanical brake control [25] = '0' => Brake is closed.Mechanical brake control [25] = '1' => The brake isopen.See more detailed parameter settings under Control ofmechanical brake .NB!Do not use the internal relay for DC brakesor brake voltages > 250 V.Counter stop via terminal 33The start signal (terminal 18) must be active, i.e. logical'1', until the output frequency is equal to the reference.The start signal (terminal 18 = logical '0') must then beremoved before the counter value in parameter 344has managed to stop the VLT frequency converter.Par. 307 Digital input = Pulse input [30]Par. 343 Precise stop function = Counter stopwith reset [1]Par. 344 Counter value = 100000Use of internal PID-controller - closed loop proc-ess control1. Connect the frequency converter to mainsand motor cables as usual.2. Connect transmitter (feedback signal) to +terminal 12 and - terminal 60 (applies to 2-wire transmitters 4-20 mA). (Connect trans-mitters with 0-10 V DC to + terminal 53 and -terminal 55).NB!Connect terminal 55 as - and terminal 60as + for current signal (0/4-20 mA) andterminal 53-55 for voltage signal (0-10 VDC) if transmitters with separate voltagesupply are used.3. Connect the start signal between terminal 12and 18, 12-27 must be connected or set to nofunction (parameter 304 = 0).4. Set all parameters in the Quick Menu andenter the Main Menu (to enter the Main Menu:Press Quick Menu and + simultaneously).5. Set the following parameters:100 = Process controller closed loop [3]MG.27.E2.02 - VLT is a registered Danfoss trademark 57Installation |
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