19
Error Code
Cause of The Problem 
Status and Measurement 
ER0. 9 
1. Machine solenoid shorted. 
  2. Main board power transistor is faulty.   
  Motor still can run, but all output signals and operation box pattern sewing function will be invalid..   
     Please check the machine solenoids; or the solenoid resistance value is 2 Ω less. 
          Please check all the power transistors, which related to solenoid.   
ER0. 11 
 If parameter 【121.ANU】  is set ON, but auto needle up is 
malfunction when the power turned on. 
    Motor and machine will be shutting down. 
          Please check the synchronizer up position signal. 
     Please check the control box. 
          Please check the machine head to see if objects stuck in the motor pulley, or rotate not smoothly. 
ER0. 12 
Power on, no synchronizer signal or not connected. 
Automatic starts the clutch mode. 
     Please check the synchronizer. (also check the connection and model) 
ER0. 14 
  Using PSU signal without sewing material when【106. PSN】= OFF 
 Motor stops. 
   Please check the「PSU」sensor circuitry and its signal.   
ER0. 15 
  Using PSD signal without sewing material when【106. PSN】= OFF 
 Motor stops. 
   Please check the「PSD」sensor circuitry and its signal. 
ER0. 16 
1. Safety switch is either faulty or bad connection. 
2. Parameter【075. SFM】setting not match the machine head model.
 Motor stops. 
      Please check the safety switch. 
   Please check the parameter【075. SFM】setting, make sure it match machine head safety switch 
ER0. 51 
1. Motor overloads for more than 20 seconds during one sewing. 
2. Motor’s coil is defective. 
3. Machine head is too crude to rotate smoothly. 
 Motor stops. 
      Please check to see if the machine head is too heavy to sew. 
      Please check to see if the sewing material is too thick to sew. 
      Please check the motor coils to see if it is defective. 
      Please check the machine head to see if it is too crude to rotate smoothly.     
 
Digital Alphabet  English Alphabet  Cause of The Problem  Status and Measurement 
 
POWER  OFF 
1. AC power shut down or bad connection. 
2. Power board OI 1 sensor circuitry faulty.   
 Motor stops 
      Please check the AC power and connection. 
Please check the power board OI 1 circuitry. 
 
EM STOP 
  An emergency stop signal activated when Parameter 
【149. IND】= ES. 
  Motor emergent stop. 
      Restart the power to return normal operation. 
 
From the library of: Diamond Needle Corp