Alarm Message Meaning

Check Item

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 Servomotor was overloaded Servomotor 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 arrangment was not set properly
SV 030 Emergency Stop Emergency stop was applied Emergency stop was applied
       
       
OT 001 "+" Overtravel (Soft 1)    
OT 002 "-"  Overtravel (Soft 1)    
OT 003 "+" Overtravel (Soft 2)    
OT 004 "-"  Overtravel (Soft 2)    
OT 005 "+"Overtravel (Soft 3)    
OT 006 "-" Overtravel (Soft 3)    
OT 007 "+" Overtravel (Hard)    
OT 008 "-" Overtravel (Hard)    
OT 021 "+" Overtravel (Pre-Check)    
OT 022 "-" Overtravel (Pre-Check)    
OT 100 Spindle Alarm Spindle motor alarm signal turned on  
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.