Yaskawa drive troubleshooting

The GA500 is Yaskawa’s industrial AC microdrive and the successor Yaskawa names for the V1000. Codes are short text (oC, ov, Uv1, GF). The same text can be a fault or a minor fault/alarm: when the ALM LED stays lit it is a fault that stopped the drive; when it flashes it is an alarm and the drive keeps running.

The V1000 is Yaskawa’s compact vector drive, still widely installed. Yaskawa Europe phased out the V1000 (CIMR-VC models) from 1 March 2023 and changed it to discontinued on 1 March 2024, with no new orders from March 2024; it names the GA700 and GA500 as replacements for the A1000, V1000 and J1000. Availability in other regions was not confirmed. V1000 fault names largely match the GA500 for the common codes covered on the GA500 pages.