Technical Manual for EA350 Analog Pulse Type Servo Driver V101 : The position deviation is too high :
Input phase loss 244 Improper setting of overspeed judgment parameter Check whether the overspeed parameter is set too small Set a proper overspeed reference value The speed input command changes too sharp Check whether the analog voltage signal is abnormal Adjust the change rate of the input signal or adjust filtering The encoder is disturbed Check whether lines are properly laid and whether the system is grounded Adjust the line layout and ground the system reliably Reason for alarm Inspection Handling method The value of alarm for a position following error is too small Check whether parameter P1-20 is set properly Increase the set value of P1-20 The pulse command frequency is higher than the requirement of the specification Check the pulse command frequency Adjust the pulse frequency to make it no higher than the requirement of the specification The gain setting is too small Check if the setting is appropriate Properly set the gain value The torque limit is too low Check the torque limit value Properly adjust the torque limit value The load inertia is too high Calculate the ratio of the load to the rotor inertia of the motor Reduce the load inertia or reevaluate the motor capacity Reason for alarm Inspection Handling method Main circuit power abnormal Check whether power lines L1, L2 and L3 are loose or there is only single-phase input Make sure a normal three-phase power source is connected; if the abnormality persists, send the product to the distributor or manufacturer for repair Drive parameter setting error Set the single-phase power supply to three- phase power supply for the driver Set the parameter correctly