Under What Conditions Can DSY Series Servo Motors Operate Stably for Extended Periods?

For stable long-term operation of DSY series servo motors, it is recommended to maintain the load at 70% or less of the motor’s rated torque. This ensures reliable continuous operation, extends motor lifespan, and helps avoid risks such as overload alarms or stall torque activation. Retaining a certain torque margin also allows the motor to handle transient load fluctuations, preventing issues like overheating, efficiency loss, or premature damage caused by sustained high-load operation. This recommendation is based on thermal balance and reliability design principles and is applicable to most industrial scenarios.

To monitor the actual load condition, you can check the “load rate” parameter in real time using the supporting servo software. It is recommended to regularly monitor this parameter during both commissioning and daily operation to ensure the load rate remains within the suggested range. The position for viewing the average load rate is shown below:

In special environments, such as those with poor heat dissipation, it is advisable to further reduce the load rate—for example, to below 60%—to ensure that the motor’s temperature rise does not exceed permissible limits. The following methods can help adjust the load to a reasonable range:

• Optimize the mechanical transmission ratio to reduce the load on the motor shaft.
• Adjust acceleration and deceleration times to mitigate inertial load impacts.
• Inspect the mechanical structure for issues such as excessive friction resistance or misalignment.

While DSY series servo motors support short-term overload, long-term operation should still adhere to the recommended limit of 70% of the rated torque to ensure stability and longevity.

Updated on: 30/01/2026