FANUC Robotics America GFK-1535A - Manual (Page 23)

2-4 VersaMax™ System Genius® Network Interface Unit User's Manual – November 2000 GFK-1535A
2
Mounting Instructions
Each rack in a VersaMax I/O Station must be installed on a single section of 7.5mm
X 35mm DIN rail. “Rack” is the term used for an NIU or Expansion Receiver, plus
up to 8 physically-connected I/O carriers. The first rack in a system is called Rack
0. If there are multiple expansion racks, Rack 0 also includes an Expansion
Transmitter module installed in the leftmost position, before the NIU.
The DIN rail used in a VersaMax installation must be electrically grounded to
provide EMC protection. The rail must have a conductive (unpainted) corrosion-
resistant finish. DIN rails compliant with DIN EN50032 are preferred.
For vibration resistance, the DIN rail should be installed on a panel using screws
spaced approximately 5.24cm (6 inches) apart. DIN-rail clamps (available as part
number IC200ACC313) can also be installed at both ends of the station to lock the
modules in position.
For applications requiring maximum resistance to mechanical vibration and shock,
the NIU and DIN-rail-mounted carriers should also be mounted on the panel, as
described on the next page.
The base snaps easily onto the DIN rail. No tools are required for mounting or
grounding to the rail.
Removing the NIU from the DIN Rail
1. Turn off power to the power supply.
2. (If the NIU is attached to the panel with a screw) remove the power
supply module. Remove the panel-mount screw.
3. Slide the NIU along the DIN rail away from the other modules until the
connector disengages.
4. With a small flathead screwdriver, pull the DIN rail latch tab outward
while tilting the other end of the module down to disengage it from the
DIN rail.