INSTALLATION
SETUP/PHYSICAL INSTALLATION
3 - 6
WBPEEUI240752A0
®
NOTE:
Due to the number of pins on the P3 connector, 12 inputs
are separate while the remaining two pairs share input terminals.
The positive (+) side of point 7 and 8 are tied together in each group
(refer to Table
). For IMDSI12 module, these points must use the
same contact voltage (24 VDC, 48 VDC, 125 VDC or 120 VAC) set
by the jumpers.
Termination Configuration
A termination unit (TU) or termination module (TM) connects
the field device wiring to the INFI 90 OPEN system. The termi-
nal blocks (connection points) are located on the TU or TM.
Configuration of the TU or TM is required to accept the digital
field inputs sent to the DSI module. Refer to the appendices for
additional information.
Physical Installation
NOTE: This installation section provides instructions pertaining to
the physical installation of the digital input module only. For com-
plete cable and termination information, refer to the applicable
instruction manual (Table
The DSI module inserts into a standard INFI 90 OPEN module
mounting unit (MMU) and occupies one slot. To install:
1. Verify the slot assignment of the module.
2. Verify that a dipshunt is in the I/O expander bus socket on
the MMU backplane between the I/O module and control module.
3. For TU or TM devices, connect the hooded end of the termi-
nation cable from the TU or TM to the MMU backplane. To do
this, insert the connector into the backplane slot in the same
slot as the one assigned to the digital input module. The
latches should snap securely into place.
4. Align the digital input module with the guide rails in the
MMU; gently slide the module in until the front panel is flush
with the top and bottom of the MMU frame and the module is
seated in the cable to the termination device.
5. Push and turn the two captive retaining screws on the
module faceplate one half turn to the latched position. It is
latched when the slots on the screws are vertical and the open
ends face the center of the module.
WARNING
Disconnect power before installing dipshunts on the MMU
backplane. Failure to do so will result in contact with cabinet
areas that could cause severe or fatal shock.