How to judge the difference between servo motor and servo drive - Database & Sql Blog Articles

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When troubleshooting a drive system, the first step is to check for any error messages or alarm numbers displayed on the drive. Once you identify the specific alarm code, refer to the manual for detailed information and possible solutions. If no alarms are present, it might indicate a drive malfunction. However, there could also be cases where the servo itself is functioning properly, but the control signal is incorrect, leading to improper operation.

In addition to checking the drive’s error messages, another effective method is to perform component replacement. For example, swapping the X-axis and Z-axis servos (if they are of the same model) can help determine if the issue lies with the servo itself. Another approach is adjusting parameters—such as locking the X-axis so that the system doesn’t detect it. However, when swapping axes, even if the models are identical, differences in load, torque, or gear ratios may cause issues, especially in imported equipment.

If the machine is domestically produced, the servo parameters are often pre-set and not adjusted during use, which usually avoids such problems. Still, it's important to verify whether the X-axis and Z-axis motors have similar torque capabilities, if the motor is directly connected to the screw, and what the electronic gear ratio is. These factors can significantly affect performance and should not be overlooked during diagnostics or maintenance.

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