Connection of the protective earth

The stepper motors are marked on the housing with the symbol for protective earth.

Connection of the protective earth 1:

Establish an electrically conductive connection with a large area

Ensure that there is an electrically conductive connection with a large area between the stepper motor and the mounting plate in the control cabinet.

Ground connections dissipate HF interference and form a protective measure according to EN 60204.

Connection of the protective earth 2:
►Place ring cable lug [1] on unpainted surface
►Place washer [2] and spring washer [3] on screw [4]
►Turn screw [4] into the threaded hole provided to fasten the
ring cable lug [1]
►Observe the tightening torque:

Screw

Tightening torque [Nm]

M4

3, strength class 8.8