Yaskawa A.C91 fault code meaning

Series: Σ-V DC Power Input, Σ-7C, Σ-7S, Σ-7W, Σ-V, Σ-XS, Σ-XT, Σ-XW, Σ-V Large-Capacity Integrated, Large-Capacity Σ-V, Large-Capacity Σ-XS

Encoder communication position data acceleration error

servo drive

Meaning:

Possible causes

Source: DC Power Supply Input Σ-V Series User Manual, Setup P57; Σ-7C Servo Unit Troubleshooting Manual P50; Σ-7S Servo Unit MECHATROLINK-III Communication Command Type Product Manual P359; Σ-7W MECHATROLINK-III Communication Command Type RJ-45 Connector Product Manual P341; Σ-V Series User Manual MECHATROLINK-III Communication Command Type_Rotary Type P281; Σ-XS Servo Unit EtherCAT Communication Command Type Product Manual P677; Σ-XT Servo Unit EtherCAT Communication Command Type Product Manual P566; Σ-XW Servo Unit EtherCAT Communication Command Type Product Manual P618; Integrated High-Capacity Σ-V User Manual MECHATROLNK-II Communication Command Type_Rotary Type P281; High-Capacity Σ-V Series MECHATROLINK-II Communication Command Type_Rotary Type P273; High-Capacity Σ-XS Servo Unit (Integrated Converter Type) EtherCAT Communication Command Type Product Manual P606