YASKAWA VS mini V7 User Manual

Also see for VS mini V7: Connection manual

448 Protective Operations8.1 Fault Detection ProcessingFaults can be detected by two methods: Inverter fault detection and SI-T/V7 fault detection.The SI-T/V7 is notified of Inverter faults by the internal interface, and the SI-T/V7 sends theresponse data, ALARM or STATUS.The SI-T/V7 notifies Inverter of SI-T/V7 faults by the internal interface, and the faults aresimultaneously sent the response data, ALARM or STATUS.The following four types of faults can be detected. The subsequent operation varies depend-ing on the type of fault.Note: The meanings of each symbol are as follows.−: No change→: Fault notification to Inverter←: Fault notification from InverterWhen consecutive alarms occur, the SI-T/V7 provides notification of the most recent alarmwith a MECHATROLINK response data. If warnings occur simultaneously, notification pri-ority is given to the warning with the lowest warning code. If alarms and warnings aremixed together, the SI-T/V7 gives notification priority to alarms.The following table shows the response data when consecutive alarms or warnings occurs.Fault Type Description LocationAlarm Inverter alarm Major fault that causes damage to the Inverter or machinery InverterCommunications alarm Interference related to MECHATROLINK-II communications SI-T/V7Warning Inverter warning Illegal operation or minor fault not posing any immediate danger InverterCommunications warning MECHATROLINK-II communications fault warning SI-T/V7Fault Type SI-T/V7 Processing Direction ofCommunicationsResetMECHATROLINK Response LED2StatusProcessingALARM STATUSWARNG ALMInverter alarm CODE − 1 − No special processing ← RequiredCommunications alarm CODE − 1 Lit Notification to Inverter c→←dRequiredInverter warning CODE 1 − − No special processing ← RequiredCommunicationswarningCODE 1 − − No special processing None Not required