YASKAWA VS mini V7 User Manual

Also see for VS mini V7: Connection manual

123.3 LED IndicatorsThe LED indicators indicate the status of the communications of the MECHATROLINK-Ior MECHATROLINK-II and the SI-T/V7 Unit.However, these indicates are for maintenance checks at Yaskawa. Use the Digital Operatorto check the status.Name Display ExplanationColor StatusRUN Green Lit Normal operation− Not lit Communications CPU stopped, resetting hardware, RAM checkerror, DPRAM check error, station address setting error, orInverter model code errorERR Red Lit Watchdog timeout error, communications error, or resetting hard-wareRed Blinking ROM check error (once)*, RAM check error (twice)*, DPRAMcheck error (3 times)*, communications ASIC self-diagnosis error(4 times) *, ASIC RAM check error (5 times)*, station address set-ting error (6 times) *, Inverter model code error (7 times) **: Indicates the number of blinking.− Not lit No communications error or self-diagnosis errorTX Green Lit Sending data− Not lit Sending of dara stopped, hardware resetRX Green Lit Searching for receiving carrier− Not lit No receiving carrier found, resetting hardwareRUN TX RXERR