Danfoss VLT HVAC Drive FC 102 Instruction Manual

Also see for VLT HVAC Drive FC 102: Operating instructions Service guide Programming guide Installation guide Installation guide

Contents

2-10 Brake FunctionOption: Function:Available selections depend onparameter 1-10 Motor Construction:[0] Asynchron:[0] off[1] Resistor brake[2] AS brake[1] PM non-salient:[0] off[1] Resistor brake[0] Off No brake resistor installed.[1] ResistorbrakeBrake resistor incorporated in the system, fordissipation of surplus braking energy as heat.Connecting a brake resistor allows a higher DClink voltage during braking (generating operation).The resistor brake function is only active inadjustable frequency drives with an integraldynamic brake.[2] AC brake AC Brake will only work in Compressor Torquemode in parameter 1-03 Torque Characteristics.2-17 Over-voltage ControlOption: Function:[0] Disabled No OVC required.[2] * Enabled Activates OVC.NOTICE!Parameter 2-17 Over-voltage Control will not have effectwhen parameter 1-10 Motor Construction = [1] PM, non-salient SPM.NOTICE!The ramp time is automatically adjusted to avoidtripping of the adjustable frequency drive.3-02 Minimum ReferenceRange: Function:Sizerelated*[ -999999.999 -par. 3-03ReferenceFeed-backUnit]Enter the Minimum Reference. TheMinimum Reference is the lowestvalue obtainable by summing allreferences. The Minimum Referencevalue and unit matches the config-uration choice made inparameter 1-00 Configuration Modeand parameter 20-12 Reference/Feedback Unit, respectively.NOTICE!This parameter is used inopen-loop only.3-04 Reference FunctionOption: Function:[0] Sum Sums both external and preset referencesources.[1] External/PresetUse either the preset or the external referencesource.Shift between external and preset via acommand on a digital input.3-10 Preset ReferenceArray [8]Range: Function:0 %* [-100 - 100 %]P3-03P3-020 50 100%P3-10 130BB036.10Figure 6.10How to Program Instruction ManualMG11F522 Danfoss A/S © 08/2014 All rights reserved. 916 6