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Yaskawa Motoman
Hardware
Controller
YRC1000 MAJOR ALARMS

How to Troubleshoot Alarm 4197 [137] or Error 4241 [137]
YRC1000 ALARM CODE 0010 CPU BOARD INSERTION ERROR (SV)
YRC1000 ALARM CODE 0011 CPU BOARD INSERTION ERROR
YRC1000 ALARM CODE 0012 CPU BOARD SETTING ERROR
YRC1000 ALARM CODE 0020 CPU COMMUNICATION ERROR
YRC1000 ALARM CODE 0021 COMMUNICATION ERROR (SERVO)
YRC1000 ALARM CODE 0030 ROM ERROR
YRC1000 ALARM CODE 0040 HARDWARE INITIALIZE ERROR
YRC1000 ALARM CODE 0060 COMMUNICATION ERROR(I/O MODULE)
YRC1000 ALARM CODE 0100 COMMUNICATION ERROR

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YRC1000 ALARM CODE 1986 SECONDARY ENCODER TYPE MISMATCH

July 24, 2025 15:26
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