Troubleshooting
7
7.3 List of Fault, Minor Fault, Alarm, and Error Codes
YASKAWA SIEPC71061753C GA500 Technical Manual 251
7.3 List of Fault, Minor Fault, Alarm, and Error Codes
Table 7.2 shows the possible fault, minor fault, alarm, and error codes.
The display codes are in alphabetical order. Search the table for the code shown on the keypad, and identify its
causes and possible solutions.
Note:
The number in parentheses adjacent to the code in the table identifies the fault code or minor fault code (hex. number) that was read
during MEMOBUS/Modbus communications.
Example: AEr (0032)
Table 7.2 List of Fault, Minor Fault, Alarm, and Error Codes
Display (Hex.) Name ALM LED Type Ref.
AEr (0032) Station Address Setting Error Flashing Alarm 277
bAT (0085) Keypad Battery Low Voltage Flashing Alarm 277
bAT (0402) Keypad Battery Low Voltage Illuminated Fault 256
bb (0008) Baseblock Flashing Alarm 277
bCE (008A) Bluetooth Communication Error Flashing Alarm 277
bCE (0416) Bluetooth Communication Fault Illuminated Fault 256
boL (0045) Braking Transistor Overload Flashing Alarm 277
boL (004F) BrakingTransistor Overload Fault Illuminated Fault 256
bUS (0015) Option Communication Error Flashing Alarm 277
bUS (0022) Option Communication Error Illuminated Fault 256
bUSy Busy - Not an alarm. 278
CALL (001D) Serial Comm Transmission Error Flashing Alarm 278
CE (0014) Modbus Communication Error Flashing Alarm 278
CE (0021) Modbus Communication Error Illuminated Fault 256
CF (0025) Control Fault Illuminated Fault 257
CoF (0046) Current Offset Fault Illuminated Fault 257
CP1 (0087) Comparator 1 Limit Fault Flashing Alarm 278
CP1 (0414) Comparator 1 Limit Fault Illuminated Fault 257
CP2 (0088) Comparator 2 Limit Fault Flashing Alarm 279
CP2 (0415) Comparator 2 Limit Fault Illuminated Fault 257
CPEr Control Mode Mismatch - Backup Function Runtime Error 295
CPF00 Control Circuit Error Illuminated Fault 258
CPF01 Control Circuit Error Illuminated Fault 258
CPF02, CPF03 (0083, 0084) Control Circuit Error Illuminated Fault 258, 258
CPF06 (0087) Control Circuit Error (EEPROM memory Data Error) Illuminated Fault 258
CPF08 (0089) Terminal Board Connection Error Illuminated Fault 258
CPF11 - CPF14 (008C - 008F) Control Circuit Error Illuminated Fault 258 - 259
CPF16 - CPF24 (0091 - 0099) Control Circuit Error Illuminated Fault 259 - 260
CPF38 (00A7) EEPROM Memory Data Error Illuminated Fault 260
CPyE Error Writing Data - Backup Function Runtime Error 295
CrST Remove RUN Command to Reset Flashing Not an alarm. 279
CSEr Control Mode Mismatch - Backup Function Runtime Error 295
CyC (0033) MECHATROLINK CommCycleSettingErr Flashing Alarm 279
CyPo (0029) Cycle Power to Accept Changes Flashing Alarm 279
dCE1 (041A) Communication Error1 Illuminated Fault 260
dCE2 (041B) Communication Error2 Illuminated Fault 260
dEv (0011) Speed Deviation Flashing Alarm 279
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