Fanuc

Fanuc alarm: 404 - SERVO ALARM: n-th AXIS VRDY ON

CNC Machine Control Manufacturer
Fanuc
Control Model
, 0/00/0-mate,
404 - SERVO ALARM: n-th AXIS VRDY ON

Alarm Description

Even though the n-th axis (axis 1-8) READY signal (MCON) went off, the servo amplifier READY signal (DRDY) is still on. Or, when the power was turned on, DRDY went on even though MCON was off. Check that the axis card and servo amplifierr are connected.

Additional Suggestions & Alarm Clarification

None currently

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Post troubleshooting recommendations for (Fanuc alarm: 404 - SERVO ALARM: n-th AXIS VRDY ON) error message below.

Fanuc alarm: 403 - SERVO ALARM: 3, 4TH AXIS VRDY OFF

CNC Machine Control Manufacturer
Fanuc
Control Model
, 0/00/0-mate,
403 - SERVO ALARM: 3, 4TH AXIS VRDY OFF

Alarm Description

3-axis, 4-axis servo amplifier READY signal (DRDY) went off.

Additional Suggestions & Alarm Clarification

None currently

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Post troubleshooting recommendations for (Fanuc alarm: 403 - SERVO ALARM: 3, 4TH AXIS VRDY OFF) error message below.

Fanuc alarm: 402 - SERVO ALARM: 3, 4TH AXIS OVERLOAD

CNC Machine Control Manufacturer
Fanuc
Control Model
, 0/00/0-mate,
402 - SERVO ALARM: 3, 4TH AXIS OVERLOAD

Alarm Description

3-axis, 4-axis overload signal is on. Refer to diagnosis display No. 722 or 723 for details.

Additional Suggestions & Alarm Clarification

None currently

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Post troubleshooting recommendations for (Fanuc alarm: 402 - SERVO ALARM: 3, 4TH AXIS OVERLOAD) error message below.

Fanuc alarm: 401 - SERVO ALARM: 1, 2TH AXIS VRDY OFF

CNC Machine Control Manufacturer
Fanuc
Control Model
, 0/00/0-mate,
401 - SERVO ALARM: 1, 2TH AXIS VRDY OFF

Alarm Description

1-axis, 2-axis servo amplifier READY signal (DRDY) went off.

Additional Suggestions & Alarm Clarification

None currently

Help Others
Post troubleshooting recommendations for (Fanuc alarm: 401 - SERVO ALARM: 1, 2TH AXIS VRDY OFF) error message below.

Fanuc alarm: 400 - SERVO ALARM: 1, 2TH AXIS OVERLOAD

CNC Machine Control Manufacturer
Fanuc
Control Model
, 0/00/0-mate,
400 - SERVO ALARM: 1, 2TH AXIS OVERLOAD

Alarm Description

1-axis, 2-axis overload signal is on. Refer to diagnosis display No. 720 or 721 for details.

Additional Suggestions & Alarm Clarification

None currently

Help Others
Post troubleshooting recommendations for (Fanuc alarm: 400 - SERVO ALARM: 1, 2TH AXIS OVERLOAD) error message below.

Fanuc alarm: 386 - n AXIS : DATA TRANS. ERROR (EXT)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
386 - n AXIS : DATA TRANS. ERROR (EXT)

Alarm Description

A CRC or stop bit error occurred in the communication data being received from the separate detector.

Additional Suggestions & Alarm Clarification

EXT= External feedback coder used possibly a scale or separate encoder

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Post troubleshooting recommendations for (Fanuc alarm: 386 - n AXIS : DATA TRANS. ERROR (EXT)) error message below.

Fanuc alarm: 385 - n AXIS : SERIAL DATA ERROR (EXT)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
385 - n AXIS : SERIAL DATA ERROR (EXT)

Alarm Description

Communication data from the separate detector cannot be received.

Additional Suggestions & Alarm Clarification

EXT= External feedback coder used possibly a scale or separate encoder

Help Others
Post troubleshooting recommendations for (Fanuc alarm: 385 - n AXIS : SERIAL DATA ERROR (EXT)) error message below.

Fanuc alarm: 384 - n AXIS : SOFT PHASE ALARM (EXT)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
384 - n AXIS : SOFT PHASE ALARM (EXT)

Alarm Description

The digital servo software detected invalid data in the separate detector.

Additional Suggestions & Alarm Clarification

EXT= External feedback coder used possibly a scale or separate encoder

Help Others
Post troubleshooting recommendations for (Fanuc alarm: 384 - n AXIS : SOFT PHASE ALARM (EXT)) error message below.

Fanuc alarm: 383 - n AXIS : PULSE MISS (EXT)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
383 - n AXIS : PULSE MISS (EXT)

Alarm Description

A count error occurred in the separate detector.

Additional Suggestions & Alarm Clarification

EXT= External feedback coder used possibly a scale or separate encoder. If a scale-dirt or contamination may be present on sensor or glass. Cleaning can sometimes fix the problem.

Help Others
Post troubleshooting recommendations for (Fanuc alarm: 383 - n AXIS : PULSE MISS (EXT)) error message below.

Fanuc alarm: 382 - n AXIS : COUNT MISS (EXT)

CNC Machine Control Manufacturer
Fanuc
Control Model
16/18/21, 16i/18i/21i, 160i/180i/210i, ,
382 - n AXIS : COUNT MISS (EXT)

Alarm Description

A pulse error occurred in the separate detector.

Additional Suggestions & Alarm Clarification

EXT= External feedback coder used possibly a scale or separate encoder. If a scale-dirt or contamination may be present on sensor or glass. Cleaning can sometimes fix the problem.

Help Others
Post troubleshooting recommendations for (Fanuc alarm: 382 - n AXIS : COUNT MISS (EXT)) error message below.
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