Technical Manual for EA350 Analog Pulse Type Servo Driver V101 : Motor phase sequence error : Parameter setting abnormal : Braking resistor overload : Encoder overheating : Battery low alarm for the absolute type encoder : The battery voltage of the absolute type encoder is too low : Driver and motor matching error : Homing failure : Main power failure :
The system needs to be restarted 245 Reason for alarm Inspection Handling method The motor rotates in a direction inconsistent with the set direction Check whether U, V and W are properly wired Ensure proper wiring; if the abnormality persists, send the product to the distributor or manufacturer for repair Reason for alarm Inspection Handling method Some parameters of the driver are abnormal 1: The driver Code set doesn’t match corresponding model; 2:
The driver Code set doesn’t exist (beyond range) Check d2-09~d2-10 and the driver nameplate and make records; contact the distributor or manufacturer Reason for alarm Inspection Handling method No braking resistor is connected or the braking resistor connected has a too small capacity 1: Check connection of the braking resistor 2: Calculate resistance of the braking resistor 1: Reconnect the external braking resistor 2:
Use a suitable braking resistor IGBT for braking fails Check whether the IGBT for braking is damaged Send it to the distributor or manufacturer for repair The parameter is set incorrectly when an external braking resistor is connected Check the settings of the braking resistor (P8- 10) and the braking resistor power (P8-11) Set the parameter correctly Reason for alarm Inspection Handling method The absolute type encoder is overheated Check whether the ambient temperature for motor operation is too high Lower the ambient temperature or cool down the motor by forced air cooling Reason for alarm Inspection Handling method The battery voltage of the absolute type encoder is lower than 3.1V Measure the battery voltage Replace the battery (make sure the encoder and driver CN5 terminals are well connected and the battery is replaced when the driver is powered on.
If the battery is replaced when the encoder is powered off, an alarm will occur upon power-on again) Reason for alarm Inspection Handling method The battery voltage of the absolute type encoder is lower than 2.5V. Multi-turn position information is lost Measure the battery voltage Replace the battery, manually clear the multi-turn alarm information through AF-16 after power-on, power the encoder on again Fail to clear alarms after replacement of the battery Clear the multi-turn alarm information through AF-16. Reason for alarm Inspection Handling method The motor CODE set doesn’t exist. The driver and the motor do not match 1:
Check whether the motor code in the driver is consistent with that on the motor nameplate 2: The rated current of the motor is greater than that of the driver. 3: Whether the type of the encoder match that of the driver. 4: Whether the motor CODE set is complete. 1: Correctly match the driver and the motor 2:
Enter a correct motor code Reason for alarm Inspection Handling method Parameter Pb-00 is set too small Check whether a proper value is set for Pb-00 Increase the value of Pb-00 The external detector or limit switch fails Check the external detector, limit switch and wire Troubleshooting Reason for alarm Inspection Handling method The main circuit power is cut off Check whether the power supply logic is correct Adjust the power supply logic, or maintain the current status when the main circuit power needs to be cut off Reason for alarm Inspection Handling method Some operations require restart of the driver to become valid None Cut off the driver power and power it on again