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11
Non-Intrinsically Safe Wiring
WARNING
: Always lock out and tag electrical circuit breakers while installing or servicing
this equipment and any related equipment. A potentially lethal electrical shock hazard and the
possibility of an explosion or fire from a spark can result if the electrical circuit breakers are
accidentally turned on during installation or servicing.
IMPORTANT
: Non-intrinsically safe wiring cannot be run in the same conduit as intrinsically safe
wiring. Non-IS modules should always be installed to the left of the moveable isolation barrier.
Controller Module (CM)
The Controller Module (CM) is a non-IS module that acts like the brain of your console. The CM
handles all of the communication between the modules and then sends that information to your
output devices. You can use the optional touch screen LCD or external printer (depending on
model and configuration) as output devices to communicate with your system. The CM links to
the status lights on the front of the console and the LCD via a flexible cable connector.
Flexible cable connector
The flexible cable is installed at the factory and is just long enough to allow the door to fully
open. It is protected from high power wiring by the metal shroud attached to the CM.
NOTE
: The cable should not be deformed, but should be freely folded back into the shroud so
that it does not get pinched when the door is closed. If the flexible cable does become detached,
it can easily be reattached.
To reattach the flexible cable connector, identify the two sides of each end: there are metal bands
on one side and no metals bands on the other. It hooks into the CM by inserting one end of the
ribbon into the LCD connector with it’s metal bands facing to the left so that a metal-to-metal
connection is made with the LCD connector’s pins. After the ribbon has been correctly inserted
all of the way into the LCD connector so that the metals bands are no longer showing above the
connection, it should hold itself firmly in place. Once the flexible cable connector is properly
attached to the CM’s LCD connector, hook it up to the corresponding connector on the inside of
your console’s door by making the same kind of metal-to-metal connection that you made while
inserting it into the CM’s faceplate.
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