Instruction Manual

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Appendix
(In the panel window, the three digits after “E” indicate an error number.)
Error No. Error name Description, action, etc.
A13 Flash-ROM write request error when erase is incomplete When updating, a flash-ROM write command was received before a flash-ROM
erase command. Check the update program file and perform update again.
A14 Busy-status reset timeout error at EEPROM write A busy-status reset timeout occurred after executing EEPROM write. A15 EEPROM write request error due to no-EEPROM in target An EEPROM write request was received for a driver or other unit with CPU not
equipped with EEPROM.
A16 EEPROM read request error due to no-EEPROM in target An EEPROM read request was received for a driver or other unit with CPU not
equipped with EEPROM.
A17 Message checksum error (IAI protocol reception) The checksum in the received message is invalid. A18 Message header error (IAI protocol reception) The header in the received message is invalid. Invalid header position (message is
9 bytes or less) is suspected, among other reasons.
A19 Message station number error (IAI protocol reception) The station number in the received message is invalid.
A1A Message ID error (IAI protocol reception) The ID in the received message is invalid.
A1C Message conversion error The transmitted message does not match the message format or contains invalid
data. Check the transmitted message.
A1D Start mode error A start not permitted in the current mode (MANU/AUTO) was attempted.
A1E Start condition non-satisfaction error Start was attempted when the start condition was not satisfied, such as when an all-
operation-cancellation factor (see the 7-segment display: Drive-source cutoff, mode switching, error, auto-start switch OFF edge, deadman switch, safety gate, emergency stop, etc.) was present or the flash ROM was being written.
A1F Axis duplication error (SIO x PIO) The applicable axis is currently in use.
A20 Servo-control-right acquisition error (SIO x PIO) The servo control right is not available. A21 Servo-control-right duplicate-acquisition error (SIO x PIO) The servo control right has already been acquired. A22 Servo-control-right non-acquisition error (SIO x PIO) An attempt to retain the servo control right has failed. A23 Absolute-data backup battery voltage-low warning (Main
analysis)
The voltage of the absolute-data backup battery is low. Check the battery connection or replace the battery.
A25 Step count specification error The specified number of steps is invalid. A26 Program count specification error The specified number of programs is invalid. A27 Program non-registration error The applicable program is not registered. A28 Reorganization disable error during program run A program-area reorganization operation was attempted while a program was
running. End all active programs first.
A29 Active-program edit disable error An edit operation was attempted to a program currently not running. End the
applicable program first.