Janome JR3000 Series Operation Manual page 8

If using auxiliary axis functions to operate a motor, such as a servo motor, that
produces feedback and/or a motor with high output etc., or when using auxiliary axes
in the formation of a robot etc., we ask that you perform a risk assessment on your side
and take any necessary safety measures.
If Using Auxiliary Axis Functions in a Way that Require Safety Measures
Always set up a safety enclosure or cover the robot with a guard so the
moveable parts cannot be touched.
Anyone within the maximum reach of the robot and the auxiliary axes it is controlling
may be injured. Using the I/O-S connector accessory, set up an emergency stop
interlock system that cuts off the motor power to the auxiliary axes and is
triggered when the entrance to the safety enclosure is opened. Make sure there is
no other way of entering the restricted area.
Furthermore, put up a "No Entry" or "Do Not Operate" warning sign in a clearly
visible place.
Example:
Specifications
FOR YOUR SAFETY
Danger
7 Desktop Robot JR3000