16/18/21

Fanuc alarm: 935 - SRAM ECC ERROR

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
935 - SRAM ECC ERROR

Alarm Description

An error occurred in RAM for part program storage. Action: Replace the master printed circuit board (SRAM module), perform all-clear operation, and set all parameter and other data again.

Additional Suggestions & Alarm Clarification

None currently

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Fanuc alarm: 930 - CPU INTERRUPT

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, 0/00/0-mate, 0i
930 - CPU INTERRUPT

Alarm Description

CPU error (abnormal interrupt). The motherboard or CPU card may be faulty.

Additional Suggestions & Alarm Clarification

None currently

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Fanuc alarm: 926 - FSSB ALARM

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
926 - FSSB ALARM

Alarm Description

FSSB alarm. Replace the axis control card.

Additional Suggestions & Alarm Clarification

FSSB alarms sometimes occur when a fiber optic cable is bad

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Fanuc alarm: 924 - SERVO MODULE SETTING ERROR

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, 0/00/0-mate, 0i
924 - SERVO MODULE SETTING ERROR

Alarm Description

The digital servo module is not installed.
Check that the servo control module or servo interface module on the
main CPU or option 2 board is mounted securely.

Additional Suggestions & Alarm Clarification

None currently

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Fanuc alarm: 922 - SERVO ALARM (5/6/7/8 AXIS)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, 0/00/0-mate,
922 - SERVO ALARM (5/6/7/8 AXIS)

Alarm Description

Servo alarm (5th to 8th axis). A watchdog alarm or a RAM parity error
in the servo module occurred.
Replace the servo control module on the option 2 board.

Additional Suggestions & Alarm Clarification

None currently

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Post troubleshooting recommendations for (Fanuc alarm: 922 - SERVO ALARM (5/6/7/8 AXIS)) error message below.

Fanuc alarm: 921 - SERVO ALARM (5-8 AXIS)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
921 - SERVO ALARM (5-8 AXIS)

Alarm Description

Servo alarm (fifth to eighth axis). A watchdog alarm condition occurred, or a RAM parity error occurred in the axis control card. Replace the axis control card.

Additional Suggestions & Alarm Clarification

None currently

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Fanuc alarm: 920 - SERVO ALARM (1-4 AXIS)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
920 - SERVO ALARM (1-4 AXIS)

Alarm Description

Servo alarm (first to fourth axis). A watchdog alarm condition occurred, or a RAM parity error occurred in the axis control card. Replace the axis control card.

Additional Suggestions & Alarm Clarification

None currently

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Fanuc alarm: 919 - DRAM PARITY : (BYTE 7)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
919 - DRAM PARITY : (BYTE 7)

Alarm Description

A RAM parity error occurred in the DRAM module. Replace the DRAM d lDRAM module.

Additional Suggestions & Alarm Clarification

None currently

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Fanuc alarm: 918 - DRAM PARITY : (BYTE 6)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
918 - DRAM PARITY : (BYTE 6)

Alarm Description

A RAM parity error occurred in the DRAM module. Replace the DRAM d lDRAM module.

Additional Suggestions & Alarm Clarification

None currently

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Fanuc alarm: 917 - DRAM PARITY : (BYTE 5)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
917 - DRAM PARITY : (BYTE 5)

Alarm Description

A RAM parity error occurred in the DRAM module. Replace the DRAM d lDRAM module.

Additional Suggestions & Alarm Clarification

None currently

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