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Installation of OITs
PLC/
Host
Attach earth ground wire
(if included on cable)
4
STEPS:
1.
Connect the "HMI" end of the communication cable into either the RS-232/RS422 port or the RS-485
port as required for your application (HMI housing is marked).
2.
Tighten the two cable screws at each end to ensure shield ground path.
3.
Route the communication cable to the PLC. Refer to the "OIT Cable Routing" section for more
information.
4.
Connect the "PLC" end of the cable to the PLC and tighten the cable screws.
5.
Connect the green shield wire from the cable to earth ground (
present, make the ground connection inside the PLC connector.
Panel Preparation
A metal panel or mounting surface with a minimum thickness of 15 gauge (0.059 inch/3.3mm) if cold-rolled steel or
hardened steel, or 10 gauge (0.101 inch/2.6mm) if aluminum alloy (6061-T6 preferred) is required. Thinner panels or
surfaces may bow between the mounting clamps and not form a seal with the gasket.
The area of the panel or mounting surface where the gasket comes into contact must be flat and free of scratches, pits, and
other features that prevent the gasket from sealing properly. If the panel or mounting surface is not uniform, thick, flat, stiff,
or smooth enough, then a sealant such as silicone may be required.
*
Clean and deburr the panel cutout before the OIT is installed.
Port 1, PC[RS-232]/PLC[RS232]/PLC[RS422],
has a shielded male DB9P connector
Control panel
Port 1
PLC[RS-232]/[RS-422]
PC[RS-232]
Earth
GND
Shielded power cable
Output
OIT
Power
FG
Supply
The OIT requires a stiff, flat, smooth mounting surface
free of blemishes to seal properly to NEMA 4.
Tighten all screws
BATTERY
Port 2
PLC[RS-485]
+
2-Wire RS485
Communication cable specific for
the PLC/Host; twisted pair, foil
shielded, 28AWG minimum
Power & 485 Comm. connector
5-Pin Phoenix removable terminal
block connector, 0. 20" [5.08mm] ctrs.
WARNING
EXTENSION
PORT
0
) on the PLC. If this wire is not
1010-0300, Rev 02
13
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