Having issues with Servo Motor Alarm Code No. 21 on Samsung Techwin SM321 SMT Machine? Read our step-by-step SMT maintenance solution below. If you require replacement feeders, nozzles, or sensors, contact SMTBOX for OEM-compatible parts.
Alarm Contents: Motor encoder Communication check alarm.
Operating Condition: After the control power is turned on.
Causes: Motor encoder communication parts failure.
Measures:
Servo-Amp. change.
Servo-motor change.
Causes: Motor encoder cable connection error or failure.
Measures: Motor encoder cable check and change.
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