6.5 Alarm DetectionAlarms are drive protection functions that do not operate the fault contact. The drive will return to original status whenthe cause of the alarm has been removed.During an alarm condition, the Digital Operator display flashes and an alarm output is generated at the multi-functionoutputs (H2-01 to H2-03), if programmed.Investigate the cause of the alarm and Refer to Alarm Codes, Causes, and Possible Solutions on page 266 for theappropriate action.u Alarm Codes, Causes, and Possible SolutionsTable 6.10 Alarm Codes, Causes, and Possible SolutionsLED Operator Display Minor Fault NameAEr Station Address Setting Error (CC-Link, CANopen, MECHATROLINK)Option card node address is outside the acceptable setting range.Cause Possible SolutionsMinor Fault(H2-oo =10)Station number is set outside the possiblesetting range.• Set parameter F6-10 to the proper value if a CC-Link option card is used• Set parameter F6-20 to the proper value if a MECHATROLINK option card is used.• Set parameter F6-35 to the proper value if a CANopen option card is used.YESLED Operator Display Minor Fault Namebb BaseblockDrive output interrupted as indicated by an external baseblock signal.Cause Possible SolutionsMinor Fault(H2-oo =10)External baseblock signal entered viamulti-function input terminal (S1 to S7). Check external sequence and baseblock signal input timing. No outputLED Operator Display Minor Fault NamebUSOption Communication Error• After initial communication was established, the connection was lost.• Assign a run command frequency reference to the option card.Cause Possible SolutionsMinor Fault(H2-oo =10)Connection is broken or master controllerstopped communicating.• Check for faulty wiring.• Correct the wiring.• Repair ground wiring or disconnected cables.YESOption card is damaged. If there are no problems with the wiring and the fault continues to occur, replace theoption card. YESThe option card is not properly connectedto the drive.• The connector pins on the option card are not properly lined up with the connectorpins on the drive.• Reinstall the option card.YESA data error occurred due to noise.• Check options available to minimize the effects of noise.• Take steps to counteract noise in the control circuit wiring, main circuit lines andground wiring.• Try to reduce noise on the controller side.• Use surge absorbers on magnetic contactors or other equipment causing thedisturbance.• Use cables recommended by Yaskawa, or another type of shielded line. The shieldshould be grounded on the controller side or on the drive input power side.• All wiring for communications devices should be separated from drive input powerlines. Install an EMC noise filter to the input side of the drive input power.YESLED Operator Display Minor Fault NameCALL Serial Communication Transmission ErrorCommunication has not yet been established.Cause Possible SolutionsMinor Fault(H2-oo =10)6.5 Alarm Detection266 YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
