Alpha Series Spindle Amplifier Alarm List (A06B-6088-Hxxx, A06B-6102-Hxxx, A06B-6078-Hxxx)
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AL-A0 Faulty SPM control PCB      
         
AL-A1 Faulty SPM control PCB      
           
AL-01 Spindle motor overheat      
  Faulty thermostat in spindle motor or faulty feedback cable.    
  Spindle motor overload, spindle motor cooling fan failure    
           
AL-02 Excessive speed deviation      
  SPM overload      
  Faulty speed sensor and / or spindle feedback cable    
  Faulty SPM      
         
AL-03 DC Link fuse blown.      
  Replace SPM      
         
AL-07 Excessive Speed      
  Incorrect speed detector parameter setting    
           
AL-09 SPM overload/ overheat      
  Check SPM internal and external cooling fan    
  Send in SPM to us for wash & test service    
           
AL-11 Over-voltage in DC link section      
  Faulty incoming power or PSM      
           
AL-12 Over-current in DC link section      
  Defective motor, power cable or SPM      
  Check motor and power cable then replace SPM    
           
AL-13 CPU Internal data memory abnormality    
  Faulty SPM      
           
AL-15 Spindle switch/output switch alarm      
  Improper spindle switching sequence      
  Faulty spindle power MCC or control circuit    
           
AL-16 RAM checksum error      
  Faulty SPM      
           
AL-18 ROM checksum error      
  Faulty SPM      
           
AL-19 Excessive U phase current detection in SPM    
  Faulty SPM      
           
AL-20 Excessive V phase current detection in SPM    
  Faulty SPM    
       
AL-24 Serial transfer data stopped    
  Faulty command cable between the CNC and spindle.    
  Faluty SPM control PCB.    
  Faulty spindle control circuit on CNC.    
       
AL-25 Serial transfer data stopped    
  Faulty command cable between the CNC and spindle.    
  Faluty SPM control PCB.    
  Faulty spindle control circuit on CNC.    
       
AL-26 The Cís contouring control speed detection signal (detector on the motor) is abnormal  
 

Faulty speed sensor, feedback cable for c axis contouring control.

 
       
AL-27 Position coder signal disconnection    
 

Faulty position coder and / or feedback cable.

   
       
AL-28 Speed detection error of C's contouring control    
  Faulty feedback sensor/ cable.    
       
AL-29 Excessive load    
  SPM overload. Check operating conditions    
       
AL-30 Input circuit over current    
  Faulty incoming power / AC reactor    
  Faulty PSM    
       
AL-31 The motor can not rotate at a specified speed.    
  Faulty speed sensor and / or spindle feedback cable    
  Faulty SPM    
           
AL-32 Faulty SPM control PCB      
           
AL-33 Insufficient DC link section charging    
  Faulty PSM      
           
AL-34

The spindle parameter setting is invalid.

   
 

Improper spindle parameter setting.

   
           
AL-35 Excessive gear ratio data setting      
 

Incorrect gear ratio parameter setting.

   
           
AL-36 Error counter overflow      
  Gear ratio and / or position gain parameters are too large    
           
AL-37 Speed detector parameter setting error    
           
           
AL-39 Detection error of 1-rotation signal for C's contouring control  
Faulty feedback sensor/ cable.
 

Incorrect parameter setting for Cís contouring control detector.

 
           
AL-40 Detection error of 1-rotation signal for C's contouring control  
  Faulty feedback sensor/ cable.    
  Incorrect parameter setting for Cís contouring control detector.    
       
AL-41 Detection error of 1-rotation signal for C's contouring control  
  Faulty feedback sensor/ cable.    
  Incorrect parameter setting for Cís contouring control detector.    
           
AL-42 Position coder signal abnormal      
  Faulty position coder and/ or feedback cable    
           
AL-43 Position coder signal abnormal      
  Faulty position coder and/ or feedback cable    
           
AL-44 Faulty SPM control PCB      
           
AL-46 Position coder signal abnormal      
  Faulty position coder and/ or feedback cable    
           
AL-47 Position coder signal abnormal      
  Faulty position coder and/ or feedback cable    
           
AL-48 Position coder 1-rotation signal abnormality    
  Faulty position coder and/ or feedback cable    
           
AL-49 Spindle synchronization control error    
           
AL-50 Spindle synchronization control error    
           
           
AL-51 Under voltage at DC link section      
  Check incoming voltage & PSM      
           
AL-52 ITP signal abnormality 1      
  CNC control error. Faulty SPM      
           
AL-53 ITP signal abnormality 2      
  CNC control error. Faulty SPM      
           
AL-54 Overload current alarm      
  SPM overload.      
  Check operating conditions of the spindle.    
         
AL-55 Power line abnormality in spindle switching/output switching  
  Faulty spindle power MCC      
  Check the magnetic contactors connected to motor power cable    
  U, V, W.    
         
AL-56 Cooling fan error Replacement cooling Fan A06B-6078 Drive A06B-6088/ 6102 Drive
  Replace Cooling fan (internal).      
  Send in SPM to us for Wash & Test email: service@kfasllc.com    
         
AL-57 Control circuit is erroneous      
  Faulty SPM control PCB      
  Replace SPM control PCB      
         
AL-58 The temperature of PSM heat sink has risen abnormally. PSM Cooling Fans
  Check PSM external cooling fan.      
  Send in PSM to us for Wash & Test email: service@kfasllc.com    
           
AL-59 PSM internal cooling fan error      
  Replace PSM Cooling fan (internal)     PSM Cooling Fans
  Send in PSM to us for Wash & Test email: service@kfasllc.com