ABB ACS 502 Series Installation & Start-up Manual

Contents

ABB ACS 502 Series Installation & Start-up Manual Manual pdf 72 page image

Chapter 5 – Start-up Procedure5-6ACS 502 Installation & Start-up Manual6. Check the monitored values of Operating Data Parameters 1 – 8 fornormal drive and motor operation.7. Return to Operating Data Parameter 1 (Output Frequency).8. Slowly increase the frequency value of Parameter 1. Verify that motorspeed varies as frequency varies.9. Increase the Parameter 1 frequency value to 60 Hz and return to Displaymode.10. Measure the output current in all three phases. The current should bebalanced, and should not exceed the motor or drive rating.11. If a Bypass option is supplied, check the motor rotation in bypass. Set theBypass switch to BYPASS, then to TEST. If the motor turns in the wrongdirection, swap any two input power wires.If the drive operates according to these steps, your ACS 502 is ready to usewith preset or modified macro adjustments.If the drive does not operate according to these steps, refer to Chapter 6 –Fault Tracing in this manual.Note: If you plan to use an external control device for your drive, you mustwire the control to the drive according to the wiring scheme of themacro you select. If the 115 VAC control transformer is supplied,the Option Pack macro must be selected. Refer to Chapter 3 –Installation Instructions in this manual for more information on specificexternal control wiring schemes.Refer to the Chapter 2 – Overview of the ACS 502/504, Control PanelOperation for more information on accessing and changing parameters.Keypad Control vs.External ControlThe ACS 502 can be controlled from two external control locations or fromthe Control Panel keypad. Refer to the ACS 500 Adjustable Frequency ACDrives 2 to 350 HP Programming Manual Including Application Macros,Chapter 3 – Control Operations, for additional information. The selectionbetween KEYPAD and EXTERNAL is made through Operating Data Parameter9 (Control Location).KEYPAD R1 is a direct frequency reference, set by Operating Data Parameter10 (Keypad Ref 1). KEYPAD PI goes through an application block, where itcan be manipulated when the PI-controller is selected, set by Operating DataParameter 11 (Keypad PI (REF 2)). Refer to the ACS 500 AdjustableFrequency AC Drives 2 to 350 HP Programming Manual IncludingApplication Macros, Chapter 3 – Control Operations, for additionalinformation.EXTERNAL selection will cause the ACS 502 to follow commands connectedto X50 (or TB1), such as a manual speed pot, HOA switch, Automatic Start,and Speed Signals, etc.