theme graphic - Resistance Welding Controller


 
 

Error Indications & Countermeasures

Fault signal and Trouble shooting of Resistance Welding Controller.

Each error code blinks in the "Data" area on the panel.

error_code image

Error Code Contents Countermeasures
Fault
Trouble shooting
E-01 Self-diagnosis error The program data error.
Input the schedules again.
E-12 Maximum current setting error 3.0kA > MAX CURR > 80.0kA
Set the maximum current as 3.0~80.0kA.
E-13 Current setting error CURR1,2,3 ≥ MAX CURR In case of setting current is exceeded the maximum current.
Set the current 1, 2, 3 to be lower than maximum current.
E-14 CURR1,2,3 ≤ 10% of MAX CURR When setting current is below the 10% of maximum current
Set the current to be over than 10% of the maximum current.
E-15 Current stepper Up rate setting error When the calculated value of the step up rate is exceeded the maximum current STEP UP RATE Max. current ≤ Current setting X ( 100 )
Set the calculated value of step up rate to be lower than maximum current.
E-16 When the calculated value of the step up rate is below 10% of the maximum current STEP UP RATE 10% of Max. current ≥ Current setting X ( 100 )
Set the calculated value of the step up rate to be over 10% of the maximum current.
E-20 Thermostat error The external thermostat input is open.
Check the thermostat and cooling water temperature for the contactor.
E-21 No current or toroidal coil breakage

Current is not detected.
Check the supply of weld power source.
Check if the external Weld ON (Pins12 and 13 in the terminal block) is ON.
See if enough force is applied to the electrode.
Confirm that the squeeze is set long sufficiently. Set it longer than the stroke time of the electrode.
Check the current detector coil connector for disconnection.
Check the cables of the current detector coil for breakage.

E-22 Thyristor short-circuit error Thyristor is shorted.
Check it.
E-30 Frequency error Control power and constant frequency is over ±3% of 50Hz/60Hz
Check the constant frequency.
E-41 Auto calibration error

Current is not detected.
See if enough force is applied to the electrode.
Check the current detector coil connector for disconnection.
Check the cables of the current detector coil for breakage.

 

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Designed By - Rutuj Worth Concepts