Micromod Micro-DCI: 53MC5000 PLC AND PRINTER INTERFACES - Manual (Page 19)

2.0 INSTALLATION
2.1 53MC5000 PROCESS CONTROL STATION INSTALLATION
The PCS instruction bulletin described in the Preface of this book should be referenced for the in-
stallation procedure.
2.2 MOUNTING THE RS-232/485 ITB
The RS-232/485 ITB is designed for snap-mounting into non-conductive, 2.9 inch (74 mm) wide
PVC track that is either surface direct mounted (wall mounted) or mounted on DIN rail (32 or 35
mm) with adapters.
This ITB is not provided with an enclosure. It may be mounted within a user provided enclosure as
protection against environmental hazards and mechanical damage, and to provide operating per-
sonnel with suitable protection from electric shock.
WARNING
The RS-232/485 ITB when properly installed in the non-conductive,
2.9 inch (74 mm) wide PVC track snap-mount channel, complies with
ANSI/ISA, UL, CSA, and IEC safety requirements with respect to
accessibility to a potential shock hazard when installed in a service
access area that can only be accessed, by use of tool, by qualified
service personnel. It is the user’s responsibility to provide
supplementary protection against accidental contact with these ITBs
mounted in an operator access area where access can be gained
without the use of a tool.
The 2.9 inch (74 mm) wide PVC track is available in 4 foot (1.2 m) lengths as
part number 129A003U03 for wall mounting and for DIN rail mounting. To mount the PVC
track on either the 32 mm or 35 mm DIN rails, order kit part number 614B958U01, which con-
tains 24 DIN Adapters. DIN rails are NOT available from MicroMod Automation Inc. and must
be purchased locally.
As shown in Figure 2-1, the elongated mounting holes for the PVC track are centered 2 inches
(50.8 mm) apart, as well as the two parallel rows of adapter holes. The track can be mounted di-
rectly to the wall with screws through the elongated holes or it can be mounted on 32 mm or 35
mm DIN rail with DIN Adapters that are inserted into the adapter holes. It is not necessary to snap
all 24 adapters into a single 4 foot PVC track section.
General considerations when snap-mounting the RS-232/485 ITB to the PVC track are as follows:
• The ITB can be mounted horizontally or vertically.
• Minimum above board clearance is 3 inches (76.2 mm) for connector cable bends, but 7
inches (177.8 mm) is more desirable to allow access space above the track surface for instal-
lation of wires and connectors to the ITB.
Section 2. Installation
INSTALL
2-1