PowerFlex 750-Series AC Drives User Manual

G-16 Using DeviceLogixExample logic requirements:• If Critical High Level or High Level sensor is ON, then start the drive.– If Critical High Level sensor is ON, then switch to higher rate (90Hz)for the rest of the pumping cycle. Else run at the normal rate (60Hz)– Run until all three level sensors are OFF– Pump should run at least ‘x’ minutes at a minimum. If the Low Levelsensor fails, this prevents the High Level sensor from cycling thepump On/Off too quickly.• Annunciate a Sensor Fault condition– The Low Level sensor should never be OFF when either the HighLevel or Critical High Level sensors are ON– The High Level sensor should never be OFF when the Critical HighLevel sensor is ON– The Critical High Level sensor should never be ON when either theHigh Level or Low Level sensors are OFF• Annunciate a Critical High Level condition– The Critical High Level output should never be ON• Annunciate if pumping cycle time is longer than normal (‘y’ minutes)– Monitor the amount of time a pump cycle takes by timing how longthe drive is operating.– If greater than ‘y’ minutes, energize the Too Much Time Alarmoutput• Reset alarms / faults with a Reset pushbutton inputParameter ConfigurationThe following parameters are configured for this example.The following DeviceLogix parameters are configured for this example:Port ParameterNo. Parameter Value Description0.520 Max Fwd Speed 90.000.545 Speed Ref A Sel Port 0: Preset Speed 10.571 Preset Speed 1 60.00 Normal pumping rate (60Hz)0.573 Preset Speed 3 90.00 High speed pumping rate (90Hz)4.10 RO0 Select Port 14: DLX DigOut Sts2.DLX Sensor Fault outputDOPSts04.20 TO0 Select Port 14: DLX DigOut Sts2.DLX Critical High Level Fault outputDOPSts14.30 TO1 Select Port 14: DLX DigOut Sts2.DLX Too Much Time Alarm outputDOPSts214.33 DLX DIP 1 Port 4: Dig In Status.Input 1 Critical High Level Sensor input14.34 DLX DIP 2 Port 4: Dig In Status.Input 2 High Level Sensor input14.35 DLX DIP 3 Port 4: Dig In Status.Input 3 Low Level Sensor input14.36 DLX DIP 4 Port 4: Dig In Status.Input 4 Alarm / Fault Reset pushbuttoninputPowerFlex 750-Series User Manual – Publication 750-UM001C-EN-P – September 2009