Appendix B: Stopping Time And Stopping Distance At Emergency Stop - Epson GX Series Manual

Industrial Robot: SCARA Robots GX series Manual

6.2 Appendix B: Stopping Time and Stopping Distance at Emergency Stop

The stopping time and stopping distance at an emergency stop are shown in the graphs for each model.
The stopping time is the length of time corresponding to the "Stopping time" in the figure below. Be sure to confirm that a safe
environment is provided where the robot will be installed and operated.
For models equipped with a safety board such as RC700-E, the stopping time and stopping distance when using the Safety
Limited Speed (SLS), Safety Limited Position (SLP), and Soft Axis Limiting are equivalent to those of the emergency stop.
Symbol
a Motor speed
Emergency stop, Maximum Speed of SLS exceeded, monitoring areas and Joint Angle Limit of SLP exceeded,
b
restricted range of Soft Axis Limiting exceeded
c Time
d Stopping time
Conditions
The stopping time and stopping distance depend on the parameters (setting values) that were set for the robot. These graphs
show the times and distances for the following parameters.
Accel: 100, 100
Other settings: Default
Explanation of legend
The graphs are displayed for each Weight setting value (at 100%, approx. 66%, and approx. 33% of the maximum payload, and
at the rated load).
Horizontal axis: Arm speed (Speed setting)
Vertical axis: Stopping time and stopping distance at each arm speed
Time (sec): Stopping time (sec)
Distance (deg): J1 and J2 stopping distance (degree)
Distance (mm): J3 stopping distance
When single failures are taken into account, the following adjustments are used.
Stopping distance and angle: Each axis reaches the mechanical stop
Stopping time: Add 500 ms
Description
Rev.7
401