KFAS: Fanuc CNC Parts, Service, & Repair

  Phone: (281) 769-2671F

E-mail:  service@kfasllc.com

 

Fanuc 10/ 11 Control Alarms

SV 000: Tachogenerator Disconnect
M Series Servo - Check the connection to the motor - Remove wires from terminals 5,6,7,8 - measure between 5 and 7 or 6 and 8 should read a short. Check for tach feedback at check terminals CH2 and CH3.
AC Servo - Check the connection to the motor - Remove wires from terminals 5,6,7 - measure between each of the wires, they should all read the approx same and should be low resistance

SV 001: Motor Overload
M Series Servo - Reset overload, Check the servo transformer thermostat
AC Servo - Check the thermostat on the servo transformer and the heat fin

SV 002: Velocity Unit Breaker Off
M Series Servo - Turn off power and reset breaker
Alarm message not displayed for AC Servo

SV 003: Excess Current in Servo
M Series Servo - Disconnect servo motor and check for short to ground. Check for short circuit on transistors. Bad servo drive board
AC Servo - Disconnect servo motor and check for short to ground. Check for short circuit on transistors. Bad servo drive board

SV 004: Excess Voltage in Servo
M Series Servo - Check input voltage. Check servo motor for short circuit. Replace servo control pcb
AC Servo - Check input voltage. Check servo motor for short circuit. Replace servo control pcb

SV 005: Excess Discharge Current
M Series Servo - Discharge transistor or pcb is defective
AC Servo - Discharge transistor or pcb is defective

SV 006: Velocity Unit Power to Low
M Series Servo - Incoming power is to low. Check voltage on pins 1 and 2, and 2 and 3 on CNC2 for 19 volts ac. Replace pcb
AC Servo - Incoming power is to low. Check voltage on pins 1 and 2, and 2 and 3 on CNC2 for 19 volts ac. Replace pcb. Check 5v fuse.

SV 008: Excess Error (Stop)
Check parameters 1828 - 1830. Check incoming voltage. Master board may be bad.
Check parameters 1828 - 1830. Check incoming voltage. Master board may be bad.

SV 009: Excess Error (Moving)
Check parameters 1828 - 1830. Check incoming voltage. Master board may be bad.Check for mechanical bind.
Check parameters 1828 - 1830. Check incoming voltage. Master board may be bad.Check for mechanical bind.

SV 010: Excess Drift Compensation
Check connections to motor. Check if parameter 1834 exceeds 500. Master board may be bad
Check connections to motor. Check if parameter 1834 exceeds 500. Master board may be bad

SV 011: LSI Overflow
Check parameters 1826,1825,1820,1816. Pulse coder may be defective. Master board may be defective.
Check parameters 1826,1825,1820,1816. Pulse coder may be defective. Master board may be defective.

SV 012: Motion Value Overflow
Check CMR parameter or feedrate setting failure
Check CMR parameter or feedrate setting failure

SV 013: Improper V-Ready Off
M Series Servo - Check for a 100vac between terminals 3 and 4. Check fuse breaker is not tripped
AC Servo - Check for a 100vac between terminals 3 and 4. Check fuse breaker is not tripped

SV 014: Improper V-Ready On
Velocity control ready signal VRDY was turned on when the position control ready signal PRDY is turned off
Velocity control ready signal VRDY was turned on when the position control ready signal PRDY is turned off

SV 015: Pulse Coder Disconnect
Broken cable to Pulse Coder. Bad pulse coder. Master board may be defective.
Broken cable to Pulse Coder. Bad pulse coder. Master board may be defective.

SV 017: ILL Position Control LSI
A position control LSI fault was detected
A position control LSI fault was detected

SV 018: Unfit DSOG Frequency
Check connection to resolver. Check gain and phase shift. Position detector is bad. Inductosyn/ Resolver pcb is bad.
Check connection to resolver. Check gain and phase shift. Position detector is bad. Inductosyn/ Resolver pcb is bad.

SV 019: Unfit Pulse of Pulse Coder
An error was detected in the feedback pulse from the pulse coder
An error was detected in the feedback pulse from the pulse coder

SV 020: Unfit Phase Shift Value
Check connection to resolver. Check gain and phase shift. Position detector is bad. Inductosyn/ Resolver pcb is bad.
Check connection to resolver. Check gain and phase shift. Position detector is bad. Inductosyn/ Resolver pcb is bad.

SV 021: Unfit Pulse Coder 1 Rev On
The one revolution signal from the pulse coder was turned on at an abnormal position.
The one revolution signal from the pulse coder was turned on at an abnormal position.

SV 022: Pulse Coder 1 Rev Missing
The one revolution signal from the pulse coder was not turned on within the allowable time
The one revolution signal from the pulse coder was not turned on within the allowable tme

SV 023: SV Overload
Servo motor was overloaded
Servo motor was overloaded

SV 025: V Ready On
Velocity control ready signal VRDY was turned on instead of being turned off when the servo control was turned on.
Velocity control ready signal VRDY was turned on instead of being turned off when the servo control was turned on.

SV 026: Illegal Axis Arrange
Parameter #1023 for the servo axis arrangement was not set properly
Parameter #1023 for the servo axis arrangement was not set properly

SV 030: Emergency Stop
Emergency stop was applied
Emergency stop was applied
 

OT 001: "+" Over travel (Soft 1)
 
OT 002: "-" Over travel (Soft 1)
 
OT 003: "+" Over travel (Soft 2)
 
OT 004: "-" Over travel (Soft 2)
 
OT 005: "+"Over travel (Soft 3)
 
OT 006: "-" Over travel (Soft 3)
 
OT 007: "+" Over travel (Hard)
 
OT 008: "-" Over travel (Hard)
 
OT 021: "+" Over travel (Pre-Check)

  
OT 022: "-" Over travel (Pre-Check)
 
OT 100: Spindle Alarm

Spindle motor alarm signal turned on. Check the spindle drive unit for alarm indication.
 
OT 101: Spindle Motor Overheat
Spindle motor is overheated. Check Fan on spindle motor.
 
OT 102: Excess Velocity Error
A deviation is excessive between commanded and actual velocity of spindle motor. Transistor module bad. Spindle motor feedback sensor bad.
 
OT 103: Fuse F7 Blown
Check Fuse F7. Check transistor modules
 
OT 104: Fuse F1,F2, or F3 Blown
Check Fuse F1,F2, and F3
 
OT 105: Fuse AF2 or AF3 Blown
Check AF2 and AF3. Defective PCB
 
OT 106: Excess Velocity (Analog)
Spindle motor speed exceeded the max rating.
 
OT 107: Excess Velocity (Digital)
Spindle motor speed exceeded the max rating.
 
OT 108: Voltage (+24V) Too High
Check 24Volts, Check voltage selector switch
 
OT 109: Power Semiconductor Overload
Power semiconductor overheat Check Fan on spindle drive
 
OT 110: Voltage (+15V) Too Low
Check 15V test pin on spindle board. Check Fuses. Replace spindle Board
 
OT 111: Voltage Excess (DC Link)
The voltage on the DC Link is to high. Check incoming voltage.
 
OT 112: Current Excess (DC Link)
High current. Check motor for short. Check transistors.
 
OT 113: CPU Error
Replace spindle board
 
OT 114: Rom Error
Eprom Chips defective. Replace spindle board.
 
OT 115: Option Alarm
Auxiliary alarm for spindle motor.
 
OT 116: Disconnection Pulse Coder
Bad Pulse Coder. Broken Cable.