Yamaha RCX240 User Manual page 5

c
CAUTION
Continuous operation while the ball screw is resonating may cause the ball
screw to wear out prematurely.
[5] Duty
To achieve maximum service life for the single-axis robots, the robot must be operated
within the allowable duty (50%).
The duty is calculated as follows:
Duty (%) =
Operation time + Non-operation time
If the robot duty is too high, an error such as "overload" or "overheat" occurs. In this case, increase
the stop time to reduce the duty.
Operation time
Before using the robot controller (Be sure to read the following notes)
×100
3