PowerFlex 750-Series AC Drives User Manual

G-12 Using DeviceLogixExample 2: Scale Block OperationThis example demonstrates how a scale block operation similar to thefeature in the PowerFlex 700VC can be achieved through the embeddedDeviceLogix in the PowerFlex 750-Series drive. A Scale Block scales aparameter value and the input of the block is linked to a parameter that isdesired to be scaled. The scale block also has both input and output highlimits and low limit parameters.Figure G.2 Scale Block High Level View1:14.551:14.18Scale In HiScale Out Hi1:14.201:14.571:14.17Scale In ValueScale Out Value1:14.11:14.561:14.19Scale 1 In LoScale Out Lo1:14.211:14.58Scale In Hi determines the high value for the input to the scale block.Scale Out Hi determines the corresponding high value for the output of thescale block.Scale In Low determines the low value for the input to the scale block.Scale Out Lo determines the corresponding low value for the output of thescale block.Scale Out Value of the block is then available for user to link to anyparameter that accepts links.Parameter ConfigurationThe following DeviceLogix parameters are configured for this example:Port ParameterNo. Parameter Value Description14.1 DLX Out 01 * Set this to where the ScaleOutput value should go *14.17 DLX In 01 * Set this to your Scale Inputvalue source *14.18 DLX In 02 Port 14: DLX Real SP2 Scale In Low14.19 DLX In 03 Port 14: DLX Real SP3 Scale In High14.20 DLX In 04 Port 14: DLX Real SP4 Scale Out Low14.21 DLX In 05 Port 14: DLX Real SP5 Scale Out High14.55 DLX Real SP2 0.0 Scale In Low value14.56 DLX Real SP3 1800.00 Scale In High value14.57 DLX Real SP4 0.000 Scale Out Low value14.58 DLX Real SP5 10.00 Scale Out High valuePowerFlex 750-Series User Manual – Publication 750-UM001C-EN-P – September 2009