Janome JR3000 Series Operation Manual page 9

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 robot setup 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 safety guards around the robot or the auxiliary axes so the
moveable parts cannot be touched.
Anyone within the maximum reach of the robot and the auxiliary axes being
controlled by the robot may be injured. Set up an emergency stop interlock
device that cuts OFF the motor power to the auxiliary axes when the
entrance to the safety guard is opened and make sure this entrance is the only
way to access the machine.
NOTE: A stop made via a device connected to the I/O-S connector is a stop category 2.
Furthermore, put up a "Keep Out" or "Do Not Operate" warning sign in a clearly
visible place.
Example:
External Control (I/O / Fieldbus)
FOR YOUR SAFETY
Make sure to perform a separate risk assessment of the interlock device.
Danger
8 DESKTOP ROBOT JR3000