Rockwell Automation 57C329 Remote I/O Communications, AutoMax - Manual (Page 51)

3Ć25
3.5.4 Installing the Remote Drive Interface Head
(M/N 57C329)
Use the following procedure to install the Remote Drive Interface
Head:
Step 1.
Refer to the mounting dimensions in figure 3.17. The
Remote Drive Interface Head is designed to be mounted
vertically (either in an enclosure or on a mounting surface
to ensure proper air flow for cooling). Additional Remote
Drive Interface Heads may be mounted as close as the
mounting feet will allow. When designing your layout,
keep in mind that the Local I/O Interface cable (M/N 45C8)
is 10 feet long. You must ensure that the cables can reach
from the Remote Drive Interface Head to each drive.
Step 2. Mount the Remote Drive Interface Head on the panel and
attach it securely with #10 (M5) bolts or studs. Examples
of attaching the Remote Drive Interface Head to the
mounting surface are shown in figure 3.18.
Step 3. Using figure 3.19, locate the two No. 10 studs provided on
the Remote Drive Interface Head for grounding purposes.
The Remote Drive Interface Head must be properly
grounded to minimize personnel hazard and to ensure
proper operation. The ground path, when using a 1KVA
transformer, should have less than 10 milliohms
resistance. The grounding wire must be a minimum size of
14 AWG. The insulation should be green for U.S.A.
applications.
Step 4. Connect a green wire from earth ground to either stud on
the Remote Drive Interface Head housing. For proper
termination, a lug should be used. A star washer (toothed
lock washer) should be used under the lug to ensure
effective grounding to the Remote Drive Interface Head.
If the Remote Drive Interface Head is to be mounted on a
properly grounded subĆpanel, remove all paint, coating,
and corrosion where the Remote Drive Interface Head is to
be mounted. (Paint on the mounting surface will prevent
good electrical contact.) Use a star washer between the
subĆpanel and the Remote Drive Interface Head for a
good electrical connection.
DANGER
THE OPEN FACEPLATE TERMINALS CAN POSE A SHOCK HAZARD IF
TOUCHED WHEN POWER IS APPLIED. THE GUARD COVERING THE TERMINAL
STRIP MUST BE REINSTALLED AFTER TERMINATIONS ARE MADE. FAILURE
TO OBSERVE THIS PRECAUTION COULD RESULT IN SEVERE BODILY INJURY
OR LOSS OF LIFE.
Step 5. Refer to figure 3.21 and use the following procedure to
connect input power to the Remote Drive Interface Head:
a.) Using a screwdriver, remove one of the screws from
the plastic guard covering the terminal strip and slide
the guard to the left to expose the terminals.
b.) Turn off and lock out or tag all sources of incoming
power. Make certain that no voltage is present on the