EA180 Series Servo Drive Users Manual 8.2 Warning diagnosis and troubleshooting When the servo drive gives a warning, the warning information " AlE " will appear on the LED display. The occurrence of a warning indicates that the system has detected an abnormality, but the motor will not stop running. Please immediately check the cause of the warning and remove the problem. The warning display and its handling measures are as follows: 105 AlE02 :
Drive overheating warning Warning Scenarios Inspection Troubleshooting High ambient temperature Check whether the ambient temperature and humidity are within the allowable range Improve the cooling condition of servo drive and reduce the ambient temperature. Drive cooling fan is damaged Check whether the drive cooling fan is running during operation Replace the fan that does not work The installation direction of the servo drive or the air inlet and outlet of the cooling fan are blocked. 1: Check whether the drive installation meets the requirements 2: Check whether the radiator of the drive is blocked 1: Install the drive according to Chapter 2 2:
Clean up the blockage Servo drive is faulty Restart after power off for a period of time If the fault is still reported, replace the servo drive AlE03 : Motor overload warning Warning Scenarios Inspection Troubleshooting Motor load reaches the motor overload warning threshold set by P8-09 1: Refer to Al00D and Al00E 2: P8-09 parameter is set too small 1: Refer to Al00D and Al00E 2: Appropriately increase the set value of P8-09 AlE04 : Drive overload warning Warning Scenarios Inspection Troubleshooting Drive load reaches the drive overload warning threshold set by P8-08 1: Refer to Al00D and Al00E 2: P8-08 parameter setting is too small 1: Refer to Al00D and Al00E 2:
Appropriately increase the set value of P8-08 AlE05 : Excessive position deviation warning Warning Scenarios Inspection Troubleshooting Position following error alarm threshold is too small Verify that P1-18 parameter is appropriate Increase the set value of P1-18 The pulse command frequency is higher than the specification. Detect the pulse command frequency Adjust the pulse frequency to be lower than the specification.
Gain value is set too small Check if the set value is appropriate Set the gain value correctly Torque limit is too low Confirm the torque limit Correctly adjust the torque limit value Excessive load inertia Calculate the ratio of load inertia to motor rotor inertia Reduce load inertia or reevaluate motor capacity AlE06 : Brake overload warning Warning Scenarios Inspection Troubleshooting Braking resistor is not connected or capacity is too small. 1: Confirm the connection status of the braking resistor 2: Calculate braking resistance value 1: Reconnect the braking resistor 2:
Use a braking resistor with appropriate resistance value Excessive load inertia Check whether the total load/rotor inertia ratio is appropriate. Reduce load inertia or change to a motor with larger inertia Incorrect parameter setting Confirm the setting values of the braking resistor resistance (P8-10) and power (P8-11) parameters Set the P8-10 and P8-11 parameters correctly Check if the brake resistance derating percentage (P8-13) is appropriate When using an external brake resistor, increase the P8-13 set value if the power is sufficient Check if the deceleration time is too short Extend deceleration time