Danfoss VLT HVAC Operating Instructions Manual

Also see for VLT HVAC: Instructions Operating instructions Design guide Instruction Instruction manual

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5. 6-11 Terminal 53 High Voltage. Set maximumexternal voltage reference on Terminal 53 at 10 V.(This sets the maximum input signal at 10 V.)Q3-21130BT765.106-11 Terminal 53 HighVoltage10.00 V14.7% 0.00A 1(1)Analog ReferenceIllustration 5.56. 6-14 Terminal 53 Low Ref./Feedb. Value. Setminimum speed reference on Terminal 53 at 6Hz.(This tells the frequency converter that theminimum voltage received on Terminal 53 (0 V)equals 6 Hz output.)130BT773.11Q3-2114.7 % 0.00 A 1(1)Analog Reference6 - 14 Terminal 53 LowRef./Feedb. Value000020.000Illustration 5.67. 6-15 Terminal 53 High Ref./Feedb. Value. Setmaximum speed reference on Terminal 53 at 60Hz. (This tells the frequency converter that themaximum voltage received on Terminal 53 (10V)equals 60 Hz output.)130BT774.11Q3-2114.7 % 0.00 A 1(1)Analog Reference6 - 15 Terminal 53 HighRef./Feedb. Value50.000Illustration 5.7With an external device providing a 0-10 V control signalconnected to frequency converter terminal 53, the systemis now ready for operation. Note that the scroll bar on theright in the last illustration of the display is at the bottom,indicating the procedure is complete.Illustration 5.8 shows the wiring connections used toenable this set up.53556-1* +A53U - I130BB482.100-10VIllustration 5.8 Wiring Example for External Device Providing0-10 V Control Signal (frequency converter left, external deviceright)5.3 Control Terminal ProgrammingExamplesControl terminals can be programmed.• Each terminal has specified functions it is capableof performing• Parameters associated with the terminal enablethe function• For proper frequency converter functioning, thecontrol terminals must beWired properlyProgrammed for the intended functionReceiving a signalSee Table 2.4 for control terminal parameter number anddefault setting. (Default setting can change based on theselection in 0-03 Regional Settings.)The following example shows accessing Terminal 18 to seethe default setting.1. Press [Main Menu] twice, scroll to parametergroup 5-** Digital In/Out Parameter Data Set andpress [OK].130BT768.102-** Brakes3-** Reference / Ramps4-** Limits / Warnings5-** Digital In/Out14.6% 0.00A 1(1)Main MenuIllustration 5.9About Frequency Converter P... VLT® HVAC Drive Operating InstructionsMG11AH02 - VLT® is a registered Danfoss trademark 355 5