Yaskawa UV (blinking) fault code meaning

Series: L7

Main circuit undervoltage (warning)

drive

Meaning: The following conditions occur when no run signal is present; the main circuit DC voltage is below the setting of L2-05 (undervoltage detection level); the inrush current control contactor is open; the control power voltage is at or below the undervoltage level (CUV value); refer to the causes for UV1, UV2, and UV3 in Table 7.1

Possible causes

Source: Yaskawa L7 Series Elevator Drive User Manual, Fault Diagnosis P266