Denso RC7M Manual page 11

3.9 Setting-up a safety
fence
3.10 Setting the robot's
motion space
A safety fence should be set up so that no one can easily enter
the robot's restricted space.
(1) The fence should be constructed so that it cannot be easily
moved or removed.
(2) The fence should be constructed so that it cannot be easily
damaged or deformed through external force.
(3) Establish the exit/entrance to the fence. Construct the fence
so that no one can easily get past it by climbing over the
fence.
(4) The fence should be constructed to ensure that it is not
possible for hands or any other parts of the body to get
through it.
(5) Take any one of the following protections for the entrance/
exit of the fence:
1) Place a door, rope or chain across the entrance/exit of
the fence, and fit it with an interlock that ensures the
emergency stop device operates automatically if it is
opened or removed.
2) Post a warning notice at the entrance/exit of the fence
stating "In operation--Entry forbidden" or "Work in
progress--Do not operate" and ensure that workers
follow these instructions at all times.
When making a test run, before setting up the fence,
place an overseer in a position outside the robot's
restricted space and one in which he/she can see all of
the robot's movements. The overseer should prevent
workers from entering the robot's restricted space and be
devoted solely to that task.
The area required for the robot to work is called the robot's
operating space.
If the robot's motion space is greater than the operating space, it
is recommended that you set a smaller motion space to prevent
the robot from interfering or disrupting other equipment.
Refer to the INSTALLATION & MAINTENANCE GUIDE, Chapter
2.
SAFETY PRECAUTIONS