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12
Ultra1500 Digital Drives Quick Start
Error
Text
Code
Message
Continuous Power
Overload
Encoder Type Mismatch
Encoder Communication
Error
Special Communication
Error
Position Command
Frequency Error
Publication 2092-QS001D-EN-P — July 2005
Possible Cause
Motion application requires average
drive power in excess of rated capability
Motor encoder signals do not match
drive configuration
Defective encoder
Wiring between drive and encoder is
faulty or disconnected, or EMI (noise)
disrupts encoder signals.
Communications error between host and
drive (noise)
Input frequency limit exceeded
Action/Solution
• Reduce acceleration rates.
• Reduce duty cycle (ON/OFF) of
commanded motion.
• Increase time permitted for motion.
• Use larger drive and motor.
• Check tuning.
Verify motor selection.
Replace motor.
• Verify encoder wiring.
• Contact A-B.
• Verify serial cable.
• Check for noise on serial interface.
• Verify hardware type selected in the drive
matches the physical hardware.
• Change from open collector to line drive.
• Reduce the speed command.
• Apply gearing.
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