SVPM (Combination units) Alarm Codes List

FANUC Alarm Codes >> SVPM (Combo Unit) Alarm Codes

When there’s an error with your CNC machine tool and an alarm is thrown, production halts and you’re stuck scrambling to find a solution. Refer to the table below to figure out what’s happening with your servo/spindle combination unit (SVPM) and what you must do to get it fixed.

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If you need help identifying an alarm code, please give us a call for free over-the-phone support and determine if you have failed components that need repair or full replacement.

Speak with an experienced FANUC technician at Tri Star CNC Services to get to the root of the problem and get it fixed.

SVPM (Combination units)

Alarm Code

Description

Status 1 Spindle Unit

Status 2 Servo Unit

 

1, 01

 

Motor overheat

2, 02

 

Excessive speed deviation

4, 04

 

Open phase in the converter main power supply

6, 06

 

Temperature sensor disconnected

7, 07

 

Excessive speed

9, 09

 

Main circuit overload/IPM overheat

11

 

Converter: DC link overvoltage

12

 

IPM alarm

18

 

Program sum check error

19

 

Excessive offset of the phase U current detection circuit

20

 

Excessive offset of the phase V current detection circuit

21

 

Position sensor polarity setting incorrect

24

 

Serial transfer data error

27

 

Position coder disconnected

29

 

Short-period overload

30

 

Overcurrent in the converter input circuit

31

 

Motor lock alarm

32

 

Serial communication LSI RAM error

33

 

Converter: DC link precharge failure

34

 

Parameter data out of the specifiable range

35

 

Gear ratio parameter error

36

 

Error counter overflow

37

 

Speed detector parameter error

41

 

Position coder one-rotation signal detection error

42

 

Position coder one-rotation signal not detected

46

 

Position sensor one-rotation signal detection error during thread cutting

47

 

Position coder signal error

50

 

Excessive speed command calculation value during spindle synchronization

51

 

Converter: DC link undervoltage

52

 

ITP signal error I

53

 

ITP signal error II

54

 

Current overload alarm

58

 

Converter: main circuit overload

73

 

Motor sensor disconnected

75

 

CRC test alarm

79

 

Abnormal initial test operation

81

 

Motor sensor one-rotation signal detection error

82

 

Motor sensor one-rotation signal not detected

83

 

Motor sensor signal error

84

 

Spindle sensor disconnected

85

 

Spindle sensor one-rotation signal detection error

86

 

Spindle sensor one-rotation signal not detected

87

 

Spindle sensor signal error

A, A1, A2

 

Program ROM error

b0

 

Communication error between amplifier and module

b1

 

Converter: control power supply low voltage

C0, C1, C2

 

Communication data alarm

 

2

Inverter: control power supply undervoltage

 

5

Inverter: DC link undervoltage

 

b

Inverter: motor current alarm (L axis)

 

C

Inverter: motor current alarm (M axis)

 

d

Inverter: motor current alarm (N axis)

 

8. (dot)

Inverter: IPM alarm (L axis)

 

9. (dot)

Inverter: IPM alarm (M axis)

 

A. (dot)

Inverter: IPM alarm (N axis)

 

F

Inverter: cooling fan stopped of the radiator

 

6

Inverter: overheat

 

P

Communication error between amplifier and module

 

U

FSSB communication error (COP10B)

4, 04

- (dash)

Input power supply is abnormal (open phase)

11

- (dash)

DC voltage at the DC link is abnormally high

30

- (dash)

The main circuit power module (IPM) has detected an abnormal condition.

33

- (dash)

The main circuit capacitor was not recharged within the specified time

51

- (dash)

In the main circuit, the DC voltage (DC link) has dropped.

58

- (dash)

Temperature of the main circuit heat sink has risen abnormally

59

- (dash)

Internal cooling circuit faulty

b1

- (dash)

Power supply voltage decrease

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Setting Zero Return on Fanuc machines or any CNC Machine can sometimes be difficult. Each builder has their own way to set zero return through their own side of the control.

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