YASKAWA A1000 Series Quick Start Manual

Also see for A1000 Series: Installation manual Technical manual Quick start guide Technical manual Manual

Contents

5 Troubleshooting100 YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide◆ Fault Detection■ Fault Displays, Causes, and Possible SolutionsFaults are detected for drive protection, and cause the drive to stop. When a fault occurs, the fault output terminal MA-MB-MC is triggered. Faults have to be cleared manually after removing the cause to start running the drive again.Table 49 Detailed Fault Displays, Causes, and Possible SolutionsDigital Operator Display Fault NameboL Braking Transistor Overload FaultThe braking transistor has reached its overload level.bUSOption Communication Error• After establishing initial communication, the connection was lost.• Only detected when the run command frequency reference is assigned to an option card.Cause Possible SolutionNo signal received from the PLC. • Check for faulty wiring.• Correct the wiring.• Check for disconnected cables and short circuits. Repair as needed.Faulty communications wiring or a shortcircuit exists.A communications data error occurred dueto noise.• Check the various options available to minimize the effects of noise.• Take steps to counteract noise in the control circuit, main circuit, and ground wiring.• Ensure that other equipment such as switches or relays do not cause noise. Use surge suppressors ifnecessary.• Use only recommended cables or other shielded line. Ground the shield on the controller side or onthe drive input power side.• Separate all communication wiring from drive power lines. Install an EMC noise filter to the drivepower supply input.The option card is damaged. • Replace the option card if there are no problems with the wiring and the error continues to occur.The option card is not properly connected tothe drive.• The connector pins on the option card are not properly lined up with the connector pins on thedrive.• Reinstall the option card.Digital Operator Display Fault NameCE MEMOBUS/Modbus Communication ErrorControl data was not received for the CE detection time set to H5-09.Cause Possible SolutionFaulty communications wiring or a shortcircuit exists.• Check for faulty wiring.• Correct the wiring.• Check for disconnected cables and short circuits. Repair as needed.Communication data error occurred due tonoise.• Check the various options available to minimize the effects of noise.• Take steps to counteract noise in the control circuit, main circuit, and ground wiring.• Use only recommended cables or other shielded line. Ground the shield on the controller side or onthe drive input power side.• Ensure that other equipment such as switches or relays do not cause noise and use surgesuppressors if required.• Separate all communication wiring from drive power lines. Install an EMC noise filter to the drivepower supply input.Digital Operator Display Fault NameCFControl FaultA torque limit was reached continuously for three seconds or longer while ramping to stop in OpenLoop Vector Control.or<1>CPF00 or CPF01<1>Control Circuit ErrorCPF02 A/D Conversion ErrorAn A/D conversion error or control circuit error occurred.CPF03 Control Board Connection ErrorConnection error between the control board and the driveCPF06 EEPROM Memory Data ErrorThere is an error in the data saved to EEPROM.