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interface enclosure installation

Created by hww3. Last updated by hww3, 312 days ago. Version #2.

  The computer interface enclosure of constructed of 1/16" Aluminum sheet with a clear polycarbonate cover. The interface is open at the top and bottom edge to allow efficient cooling and access to the various connectors. An optional power switch allows the solenoid side of the interface to be turned off when the interface is not in use.

NOTE: A number of mounting holes have been provided to attach the interface enclosure to a wall, pole, casting machine, etc. Some of these holes may be difficult to access once the board has been installed in the enclosure and the top cover fitted. Take a moment to determine how you wish to mount the enclosure before beginning the assembly process and if necessary, mount the interface before continuing.

NOTE: Be careful when starting the screws, as aluminum can be cross threaded easily. If the screw doesn't start easily, remove it and verify that the screw has been started in the thread properly.

NOTE: Some revisions of the interface board do not contain screw holes along their interior. In this case, the standoffs simply provide protection from flexing the interface board when installing connections. To prevent the board from flexing upward when removing connections, always use a finger to hold the center of the board against these standoffs. 

IMPORTANT: Always remove the power connection and USB cable from the interface board before adjusting connections. Doing this will prevent any accidental shorting that may be caused by contact between the interface and tools or the enclosure itself.

1. Remove the 6 screws retaining the plastic cover.

2. Remove the cover and peel the protective sheet from the front of the cover.

3. Remove the 6 screws and metal washers from the bottom of the enclosure.

4. The plastic standoffs are attached to the bottom of the closer using a contact adhesive. This is primarily to ease installation. If any become unseated, simply align them with their screw-holes before installing the interface board.

5. Place the board in the enclosure and align the holes in the board with the standoffs in the bottom of the enclosure. For each hole, start a machine screw and washer into the hole, but do not tighten. 

6. When all mounting screws have been started, make sure the interface board is properly lined up within the enclosure and be sure that there is no metal-to-metal contact between the board and the enclosure (this should be extremely unlikely.)

7. Gently tighten each screw in turn so that the interface is held securely. It is only necessary to tighten the screws "finger tight" with a small screwdriver.

8. Remove the mounting hardware from the power swith assembly and set it to the side.

9. Insert the switch through the mounting hole in the side of the enclosure. 

10. Slip the the label tag on the switch shaft followed by the washer and retaining nut. Do not tighten the nut.

11. Connect the switch to the interface board by slipping the connector onto the 2 pin header along the top edge of the board, next to the power jack. The connector is polarized so will only fit one way. Make sure the connector is pressed all the way onto the pins (this should not require any significant force).

12. Connect the power supply to the interface board and adjust the switch so that it's on/off position aligns with the power switch label on the side of the interface. Disconnect the power.

13. Using a hex socket or wrench, tighten the hex nut holding the switch in the enclosure.

14. Place the plastic cover over the top of the enclosure and affix the 6 flat head screws.
15. Connect Ribbon cables and sensor cable, taking care to ensure they are connected to the correct connectors on the interface board.

16. Connect power and USB cables to the interface.

17. Use the power switch to control 12V power to the "caster side" of the interface. (When the USB cable is connected to a running computer, the "computer side" of the interface is always on.) 

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