Yaskawa Modicon 800 Series Remote I/O Network for use on Microtrac LAN - Manual (Page 10)

2 HARDWARE
9 Grounding
5/24/96
Grounding Normally the PLC gateway will be mounted and wired on a MagneTek drive
panel. However, the gateway can be mounted remotely by the customer. Also,
special consideration must be given to the 120 VAC power source and
grounding of the gateway chassis. The chassis and “green wire” ground
connection should be securely attached directly to the panel on which it is
mounted. The panel must also be securely attached to the building earth
grounding system. If the 120 VAC source is grounded, which is preferred,
ensure that the white power cord is attached to the ground source wire.
RD 3004-20