Foxboro 9791007-XXX Technical Product Guide for Tricon Systems
Heat from the equipment mounted within the enclosure is convected naturally and is
dissipated by the exterior surfaces of the enclosure. For operating in ambient
temperatures up to 55° C (131° F), natural convection is supplemented by two
redundant fans that circulate air within the sealed enclosure.
The fans and temperature within the enclosure are monitored by the Enclosure
Monitoring Unit (EMU) that provides a diagnostic alarm on fan deterioration or
enclosure over temperature.
Leave a minimum of 150 mm(6 in) space between adjacent cabinets or a cabinet and
a wall, to allow the flow of air to cool the cabinet.
Cable Entry
| HIMA | X-BLK01 632590802 |
| HIMA | X-DI1601 985210222 |
| HIMA | X-DO1201 985210204 |
| HIMA | X-FAN 18 03 |
| HIMA | X-FAN1003 993201013 |
| HIMA | Z1001 |
| HIMA | Z1004 999100402 |
| HIMA | Z1006 |
| HIMA | Z6011 |
| HIMA | Z6012 |
| HIMA | Z6013 |
| HIMA | Z6018 |
| HIMA | Z7116 |
| HIMA | Z7116/3236/C5 |
| HIMA | Z7126 |
| HIMA | Z7127/6217/C8/I |
| HIMA | Z7128 |
| HIMA | Z7130 |
Bottom cable entry for power, communication, and field cables is through customer
supplied cable glands that maintain the enclosure protection classification, or optional
factory fitted Multi Cable Transit (MCT).
Modular Baseplate Mounting
The enclosure contains two 8-position standard 200 Series modular baseplates for
Foxboro DCS Fieldbus Modules (FBMs), and two 2-position baseplates for the
FCM2F10s. These are mounted on two vertical DIN rails as shown in Figure 1. page
7. The FBMbaseplates include signal connectors for the FBMs, redundant
independent DC power connections, system cable connections, module fieldbus
connections, and time synchronization connections.
For more information on the modular baseplates, see Standard 200 Series
Baseplates (PSS 41H-2SBASPLT).
Field Termination Assemblies
Termination Assemblies (TAs) are installed on the DIN rails mounted at the sides of
the FBM baseplates. The Universal I/O modules are connected to the TAs with pre
installed system cables.
The TAs are supplied with redundant 24 V DC, protected by fuses that are monitored
by the Fuse Monitoring Unit (FMU).
The enclosure is shipped with TAs fitted with passive feed-through signal conditioners
which you can replace with the signal conditioners listed in the section Termination
Assemblies and Signal Conditioners, page 8.