Fanuc · Alpha i series AC Servo Motor
A parameter has been specified incorrectly, causing an alarm. This can arise from conflicting motor ID settings, invalid values for rotation direction, zero values for critical ratios, or out-of-range settings for gains and capacities.
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Verify that parameter No.030 is set to 0 and parameter No.125 correctly contains the motor ID number.
Check parameter No.031 (direction of rotate) and set it to either '111' or '-111'.
Ensure parameter No.106 (denominator of pulses per single revolution of the motor) is not set to 0.
Review parameter No.107 (position gain) and adjust it if it is excessively large.
Check parameter No.179 (number of pulses per single revolution of the motor) to ensure it is within its valid range (e.g., greater than 8388607).
Calculate the ratio of parameter No.107 / No.105 or No.179; ensure it is not less than 0.488.