Fanuc Beta I SVPM Alarms and Error Codes.

Fanuc Beta I SVPM Alarms for series A06B-6134 and A06B-6164. Please contact us if you need testing, a repair or an exchange part. For further product information please visit our dedicated FANUC Beta I servoPage.

The below table lists alarms related to the servo amplifier module.

Alarm CodeDescription of Alarm/Error
1Inverter: Internal cooling fan stopped
2Inverter: Control power supply under voltage
5Inverter: DC link under voltage
6Inverter: Overheat
FInverter: 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)
bInverter: motor current alarm (L-axis)
cInverter: motor current alarm (M-axis)
dInverter: motor current alarm (N-axis)
U
Inverter: FSSB communication error (COP10B)

 

Alarm Code
Description of Alarm/Error
STATUS2 Alarm Code 2Inverter: Control power supply undervoltage.
STATUS2 Alarm Code 5Inverter: DC link undervoltage
STATUS2 Alarm Code 6Inverter: Overheat
STATUS2 Alarm Code PCommunication 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 AInverter: IPM alarm
STATUS2 Alarm Codes, 8, 9 and AInverter: IPM alarm (OH)
STATUS2 Alarm Code, b, c and d Inverter: DC link current alarm
STATUS2 Alarm Code UInverter: 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 CodeDescription of Alarm/Error
01The inside temperature of the motor is higher than the specified temperature.
02The actual motor speed is largely deviated from the commanded speed.
06The temperature sensor is abnormal. Or the temperature sensor cable is broken.
07The motor rotates at a speed exceeding 115%( standard setting) of the maximum allowable speed.
09The temperature of the heat sink has risen abnormally.
12An 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.
15This 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.
18A sum check is abnormal
19 & 20The 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.
21The specified polarity of the position sensor is incorrect.
24Serial 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)
27The signal of the a position coder is disconnected.
29An excessive load ( standard setting: load meter reading of 9.5V) has been applied  continuously for a certain period (standard setting: 30 seconds)
31The motor failed to rotate as specified and has stopped or is rotating at a very low speed.
32LSI memory for serial communication is abnormal. A check is made when the power is turned on.
34Parameter data outside the specified range was set.
36The 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.
 41The position where the one rotation signal of the α position coder is generated is incorrect.

 

 42The one rotation signal of the α position coder is not generated.
46The one rotation signal of the position coder cannot be detected normally during thread cutting.
47The count value of α position coder signal pulses is abnormal.
50A 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.
54A large current flowing in the motor for a long time was detected.
73The signal of the motor sensor is disconnected.
75An abnormality was detected during control program transfer processing.
79An abnormality was detected during control program initialization.
81The position where the one rotatation signal of the motor sensor is generated is incorrect.
82The one rotation signal of the motor sensor is not generated.
83The 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.
84The spindle sensor signal was disconnected.
85The one rotation signal of the spindle sensor occured in an incorrect location.
86No spindle sensor one rotation signal occured.
87A spindle sensor signal is abnormal.
A1 & A2The control program is not running. An error was detected when the control program was running.
C0, C1 & C2An error occured in serial communication data between the CNC and spindle amplifier module.
35There 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)