Fanuc Beta I SVPM Alarms and Error Codes
Fanuc Beta I SVPM Alarms for series A06B-6134 and A06B-6164.
The below table lists alarms related to the servo amplifier module.
| Alarm Code | Description of Alarm/Error |
| 1 | Inverter: Internal cooling fan stopped |
| 2 | Inverter: Control power supply under voltage |
| 5 | Inverter: DC link under voltage |
| 6 | Inverter: Overheat |
| F | Inverter: Cooling fan stopped |
| 8. | Inverter: IPM alarm (L axis) |
| 9. | Inverter: IPM alarm (M axis) |
| A. | Inverter: IPM alarm (N axis) |
| 8. | Inverter: IPM alarm (OH) (L axis) |
| 9. | Inverter: IPM alarm (OH) (M axis) |
| A. | Inverter: IPM alarm (OH) (N axis) |
| b | Inverter: motor current alarm (L-axis) |
| c | Inverter: motor current alarm (M-axis) |
| d | Inverter: motor current alarm (N-axis) |
| U | Inverter: FSSB communication error (COP10B) |
| Alarm Code | Description of Alarm/Error |
| STATUS2 Alarm Code 2 | Inverter: Control power supply undervoltage. |
| STATUS2 Alarm Code 5 | Inverter: DC link undervoltage |
| STATUS2 Alarm Code 6 | Inverter: Overheat |
| STATUS2 Alarm Code P | Communication error between amplifier modules |
| STATUS2 Alarm Code – STATUS1 Alarm Code 33 | The main circuit capacitor was not recharged within the specified time. |
| STATUS2 Alarm Codes, 8, 9 and A | Inverter: IPM alarm |
| STATUS2 Alarm Codes, 8, 9 and A | Inverter: IPM alarm (OH) |
| STATUS2 Alarm Code, b, c and d | Inverter: DC link current alarm |
| STATUS2 Alarm Code U | Inverter: FSSB communication error |
If an alarm occurs in the spindle amplifier module the ALM LED lights red in the STATUS 1 display and the two digit 7 segment LEDs indicate the alarm code
| Alarm Code | Description of Alarm/Error |
| 01 | The inside temperature of the motor is higher than the specified temperature. |
| 02 | The actual motor speed is largely deviated from the commanded speed. |
| 06 | The temperature sensor is abnormal. Or the temperature sensor cable is broken. |
| 07 | The motor rotates at a speed exceeding 115%( standard setting) of the maximum allowable speed. |
| 09 | The temperature of the heat sink has risen abnormally. |
| 12 | An excessively large current flowed into the main circuit. This alarm indicates that the power module (IPM) of the main cicruit detected an error. Such as an excessive load or over current. |
| 15 | This alarm is issued only when output switching control or spindle switching control is used. The SVPM does not support output switching control and spindle switching control. |
| 18 | A sum check is abnormal |
| 19 & 20 | The offset voltage of the phase U (alarm code 19) or phase V (alarm code 20) current detection is excessively high. A check is made when the power is turned on. |
| 21 | The specified polarity of the position sensor is incorrect. |
| 24 | Serial communication data transferred between the CNC and SVPM contain an error. (Note: This alarm is issued also if the CNC power is off. This is not a failure though) |
| 27 | The signal of the a position coder is disconnected. |
| 29 | An excessive load ( standard setting: load meter reading of 9.5V) has been applied continuously for a certain period (standard setting: 30 seconds) |
| 31 | The motor failed to rotate as specified and has stopped or is rotating at a very low speed. |
| 32 | LSI memory for serial communication is abnormal. A check is made when the power is turned on. |
| 34 | Parameter data outside the specified range was set. |
| 36 | The error counter overflowed. |
| 37 | After emergency stop signal input, the motor is accelerated without being decelerated. This alarm is issued also when the motor is not deactivated (the motor is not decelerated completely) when the acceleration/deceleration time ( initial parameter setting: 10 seconds) has elapsed after emergency stop signal input. |
| 41 | The position where the one rotation signal of the α position coder is generated is incorrect.
|
| 42 | The one rotation signal of the α position coder is not generated. |
| 46 | The one rotation signal of the position coder cannot be detected normally during thread cutting. |
| 47 | The count value of α position coder signal pulses is abnormal. |
| 50 | A value obtained by internal calculation in spindle synchronization exceeded the allowable range. |
| 52 & 53 | The synchronziation signal ( ITP) in communication data transferred to and from the CNC stopped. |
| 54 | A large current flowing in the motor for a long time was detected. |
| 73 | The signal of the motor sensor is disconnected. |
| 75 | An abnormality was detected during control program transfer processing. |
| 79 | An abnormality was detected during control program initialization. |
| 81 | The position where the one rotatation signal of the motor sensor is generated is incorrect. |
| 82 | The one rotation signal of the motor sensor is not generated. |
| 83 | The SVPM checks the pulse counts of phases A and B each time a one rotation signal is detected. The alarm is issued when a pulse count beyond the specified range is detected. |
| 84 | The spindle sensor signal was disconnected. |
| 85 | The one rotation signal of the spindle sensor occured in an incorrect location. |
| 86 | No spindle sensor one rotation signal occured. |
| 87 | A spindle sensor signal is abnormal. |
| A1 & A2 | The control program is not running. An error was detected when the control program was running. |
| C0, C1 & C2 | An error occured in serial communication data between the CNC and spindle amplifier module. |
| 35 | There is a large difference between the motor speed calcualted from the position coder and the motor speed estimated with the spindle software. |
Alarms Common to Servo and Spindle Units
| Alarm Code | Description of Alarm/Error |
| STATUS2 Alarm Code – STATUS1 Alarm Code 30 | SVPM The main circuit power module (IPM) has detected an abnormal condition. |
| STATUS2 Alarm Code – STATUS1 Alarm Code 59 | A cooling fan for the control circuit has stopped. |
| STATUS2 Alarm Code – STATUS1 Alarm Code 58 | The temperature of the main circuit heat sink has risen abnormally. |
| STATUS2 Alarm Code – STATUS1 Alarm Code 51 | In the main circuit, the DC voltage (DC link) has dropped. |
| STATUS2 Alarm Code – STATUS1 Alarm Code 33 | The main circuit capacitor was not recharged within the specified time. |
| STATUS2 Alarm Code – STATUS1 Alarm Code b1 | The control power supply voltage decrease |
| STATUS2 Alarm Code – STATUS1 Alarm Code 11 | In the main circuit, the DC voltage at the DC link is abnormally high. |
| STATUS2 Alarm Code – STATUS1 Alarm Code 04 | The input power supply is abnormal (open phase) |