20 • The WAGO-I/O-SYSTEM 750Mechanical SetupWAGO-I/O-SYSTEM 750ETHERNET TCP/IP2.6.5 Plugging and Removal of the ComponentsWarningBefore work is done on the components, the voltage supply must be turnedoff.In order to safeguard the coupler/controller from jamming, it should be fixedonto the carrier rail with the locking disc To do so, push on the upper grooveof the locking disc using a screwdriver.To pull out the fieldbus coupler/controller, release the locking disc by pressingon the bottom groove with a screwdriver and then pulling the orange coloredunlocking lug.Fig. 2-5: Coupler/Controller and unlocking lug g01xx12eIt is also possible to release an individual I/O module from the unit by pullingan unlocking lug.Fig. 2-6: removing bus terminal p0xxx01xDangerEnsure that an interruption of the PE will not result in a condition whichcould endanger a person or equipment!For planning the ring feeding of the ground wire, please see chapter 2.6.3.
