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Home Technologies Electromechanical Group Electromechanical - Industrial Electromechanical Industrial Knowledge Base The AC890 is enabled, and START is true, but the motor runs slow with high torque. Why?
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Electromechanical Industrial Knowledge Base The AC890 is enabled, and START is true, but the motor runs slow with high torque. Why?
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  • Electromechanical Knowledge Base & Frequently Asked Questions
  • +Motion and Machine Controllers
  • +General Technology Information
  • +Virtual Engineer
  • +Visualization and Human Machine Interface (HMI)
  • +Servo Drives and Servo Drive/Controllers
  • +Stepper Drives and Stepper Drive/Controller
  • +Gearheads
  • -AC/DC Industrial Drives
    • +AC10
    • +AC30
    • +DC590+ Series
    • -AC890 Series
      • What are the basic wiring connections for the AC890?
      • What software and communication cable are used for programming an AC890?
      • How to Install and Extract Parameters From a 890 or 890PX Drive Using DSE Lite?
      • 890 - Interact Xpress with the AC890
      • 890: Why am I getting over-voltage trips?
      • 890PX - Proper ethernet cable - Current Balance, Undervoltage, Missing Phase
      • Can I clone an 890 drive via the Keypad?
      • Can the AC890 be configured as an Active Front End (AFE)?
      • Can the AC890 be used in a load-sharing application?
      • Can the AC890 be used in an electronic lineshaft application?
      • Can the AC890 be used in an encoder following application?
      • Converting .001 file types to .prj file type
      • How can I get the DSE software?
      • How can I get the DSELite software?
      • How can I load different firmwares?
      • How can I recover from a COMMS CODE N error on the AC890
      • How can I troubleshoot Firewire problems?
      • How can the 890 family be configured?
      • How can the AC890 be reset to factory defaults?
      • How can you add an item to the OPERATOR MENU in an AC890?
      • How do I determine an 890 drive TAG NUMBER so it can be used in DSE890?
      • How do I know what firmware revision my AC890 is?
      • How do I make an 890 Phase move?
      • How do I startup & troubleshoot a PMAC motor on the 890?
      • Is the keypad detachable during operation?
      • Is there any additional information on troubleshooting 690+ and AC890 Frame K drives? (copy)
      • My 890 control board locked up when updating the firmware, how can I reset the control board?
      • The AC890 is enabled, and START is true, but the motor runs slow with high torque. Why?
      • The AC890's DC bus voltage is extremely high on power-up. Why?
      • The AC890PX DC bus voltage is extremely high on power up. Why?
      • What are the minimum and maximum 3-phase input voltage ratings on an 890SD, CD, CS and PX?
      • What are the reference power supplies available to terminal connections on the AC890?
      • What can I use to replace an 8902/RR/00/00?
      • What configurable I/O is available on the AC890?
      • What is the current overload rating for the AC890 drive?
      • What is the maximum operating altitude for the AC890?
      • What is the operating temperature for the AC890?
      • What kind of I/O is available on the AC890?
      • What options can be added to the AC890/890PX?
      • What safety standards does the 890 meet?
      • What slots I can put options in, and how do I install them?
      • What types of speed feedback are supported for the AC890?
      • Where do I find default configurations?
      • Why am I getting an Incompatible Power Board message?
      • Why can't I connect to my AC890 drive with the USB cable
      • Why is my AC motor running hot?
      • Why is the LED on the control board flashing 50% red and 50% green?
      • Why won't DIN3 stop my 890 drive with a default configuration in remote mode?
      • Why won't my AC890 inverter run my motor?
      • AH469479U001 card - Use 8903/??/00/00 when ordering replacements
      • AH469910U001 - Use 8904/A/US/03/00 or 8904/A/US/03/83 to order replacements
      • How do I convert AC890 Europe part numbers to US part numbers?
      • HOW DOES THE INVERSE TIME (OVERLOAD) FUNCTIONALITY PROTECT THE DRIVE (890)?
      • Runtime alert when connecting to or downloading a project to an 890 drive - DSEv3.10
    • +Legacy/Discontinued Products
    • What software and communication cable are used for programming?
    • DSE Lite, Drive Firmware, and Project Compatibilities
    • How do I update my DSE, DSELite, DSI3, DSI8000, or DSD software?
    • How do I migrate my DSE (DSE890), DSELite, DSD software to a new computer?
    • Why does DSE or DSELite crash when creating or opening a new project?
    • How can I flash the LinkNet Techbox firmware?
    • What is an Autotune and how do I run one?
    • Do you have CAD available for SSD Products? AC10, AC30, 590+, 650 (OBX), 690+ (OBX), 890
    • 6053...6054...6055...? Techbox options
    • How do I cross a Legacy or Parker European part number to modern Parker North American part numbers?
    • AC15/AC20
    • Maximum Speeds for VFD drives
    • Replacement keypad part numbers (590+ / 690+ / 890 / AC30 / AC10)
    • What is 'BOOST' in Parker VFD drives?
    • 6053 DNET Techbox Firmware Incompatibilities
    • DESAT (OVER I) Fault
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  • +Legacy (Discontinued)
  • +Other
  • Memorandum: Information on EPA ban of Persistent bioaccumulative toxin (PBT)

The AC890 is enabled, and START is true, but the motor runs slow with high torque. Why?

Revision Creation Date Revision Author
Current Revision 17 Feb 2020 5:30 PM Jack DeGrano
Revision #3 4 Sep 2019 11:02 PM Jack DeGrano
Revision #2 14 May 2019 11:09 PM Jack DeGrano
Revision #1 1 Oct 2017 9:40 AM Electromechanical and Drives Team
  • Compare Versions View current version
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