User's Manual

4. Commissioning
MF0145AUA.doc Manual for ION
®
-M7P/7P/17P Page 25
4.2.4. Grounding (Earthing)
Grounding must be carried out. Connect an earth-bonding cable to the grounding
connection provided at the outside of the Remote Unit (see section 4.2.3
Connections). Do not use the grounding connection to connect external devices.
figure 4-6 Grounding bolt with loosened hex nut (left) and schematic view (right)
After loosening the hex nut, connect the earth-bonding cable between the two
washers as illustrated in the above. Then, fasten all parts again with the hex nut.
 Note: Ground of a second unit (for example RU + EU) has to be connected to
the same equipotential bonding terminal as the Remote Unit. Use
bonding cables of the same length, as short as possible and with a
large wire cross section. Follow local electrical code practices.