Hitachi B2C number fault code meaning

Series: HFC-VWS

Invalid data in soft memory element (NV-RAM)

AC drive

Meaning: Check the number of times new data is stored per day. | Replace the NV-RAM. Write count is limited to about ten thousand (several stores per day → life about ten years).

Possible causes

Source: Hitachi HFC-VWS Instruction Manual P52