Rockwell Automation 2711E-NKSW1 User Manual

Installation Instructions

Applicable Terminals

Contents

Replacement Keyswitch Assembly

(Catalog No. 2711E-NKSW1)

Use this replacement keyswitch with PanelView Terminals 2711-KA1,

-KC1, -TA1, -TC1, -TA4, -TC4 and PanelView 1400e Terminals Series E and earlier)

This document contains instructions for multiple terminals. Refer to the section that applies to your terminal.

Section Page

Tools Required 1 Important 2 PanelView 1200 Terminals Series A through Series C 3 PanelView 1200 Terminals Series D and Series E 9 PanelView 1200 Series F through Series G, all PanelView 1200e

PanelView 1400e Series A through Series E

14 18

Tools Required

Troubleshooting- All Terminals

Tools Required:

• flat-blade screwdriver

• phillips screwdriver

• 7/8 inch. open-ended wrench

• needle nose pliers

1 40061-135-01(C)

2 Replacement Keyswitch Assembly

Important

Replacement of the Keyswitch Assembly should be performed by a qualified technician who has experience in the service and repair of electronic equipment. In no event will Allen-Bradley LLC be responsible for indirect or consequential damages resulting from the replacement of this part.

Use an anti-static mat or wear a grounding wrist strap whenever you work with any electronic components.

ATTENTION

Make sure that the PanelView terminal’s power cord is disconnected, and that all cables have been disconnected from the rear of the terminal.

ATTENTION

The electronic components in PanelView terminals are extremely sensitive to static electricity and may be permanently damaged by electrostatic discharges. Follow proper handling procedures for electrostatic devices.

Back Up Your Application File

If you have no disk copy of the application file (as it was created in PanelBuilder) make one before opening the terminal. Upload the application file to a computer running PanelBuilder 1400e and save the file on disk.

40061-135-01(C)

Replacement Keyswitch Assembly 3

PV1200 Series A through Series C

Open the Logic Board Drawer

1. Place the terminal on its side on top of a protective surface.

2. Remove the three screws which hold the logic board drawer

closed.

3. Swing the drawer open.

40061-135-01(C)

4 Replacement Keyswitch Assembly

PV 1200 Series A through Series C (Continued)

Disconnect the Logic Board

Remove the connections from points J1, J2, J3, J4, J6, J7 and J8 on the logic board.

Note: Cables J2 and J4 are only present on color terminals; J3 is only present on monochrome terminals.

40061-135-01(C)

Replacement Keyswitch Assembly 5

Remove the Logic Board Drawer

The drawer hinges are white nylon bushings held in place by a phillips screw.

1. Remove the screw from the top hinge (the one opposite the side

with the ground wire). Using needle nose pliers, pinch the prongs on the bushing and push the bushing upwards, out of the metal tab.

2. Swing the drawer outwards, and the other bushing will detach,

allowing the drawer to be removed. The ground wire can remain attached.

40061-135-01(C)

6 Replacement Keyswitch Assembly

PV 1200 Series A through Series C (Continued)

Remove the Node Adapter and the Logic Board

The node adapter board assembly is attached to the logic board by two screws and an edge-connector plug.

1. Remove the screws and slide the assembly straight up to unplug.

2. Remove the eight phillips screws holding the logic board to the

drawer and slide out the logic board.

IMPORTANT

When removing the logic board mounting screws, note that the screw located below U7 has a plastic washer. This washer must be installed in the same position during reassembly.

40061-135-01(C)

Replacement Keyswitch Assembly 7

Remove the Keyswitch

Using a 7/8 inch wrench, remove the nut securing the keyswitch. Remove the keyswitch.

ATTENTION

Do not hold the keyswitch by the plastic section of the body. Twisting the plastic section can damage the keyswitch.

Insert the New Keyswitch

1. Slide in the replacement keyswitch and secure it to the drawer

with the nut.

2. Orient the keyswitch so that the key’s teeth face upwards. Align

the two flat surfaces of the switch with the two flat edges of the opening in the drawer.

40061-135-01(C)

8 Replacement Keyswitch Assembly

PV 1200 Series A through Series C (Continued)

Reassemble the Terminal

1. Slide in the logic board. Attach the eight mounting screws

(remember to replace the plastic washer removed earlier).

2. Plug in the Node Adapter assembly, being careful to align the

pins in the edge connector, and then secure with two screws.

3. Reattach the bushing and put the drawer back into the terminal.

4. Reconnect the logic board:

5. Reattach the ribbon cables to the logic board. With the locking

bars up, hook each cable onto the tabs in the connector as shown below. Push the connector and locking bar in to latch it closed.

Close the Terminal

Test the Terminal

40061-135-01(C)

Make sure that there are no washers, screws, or other metal objects left on or under the logic board. Close the logic board drawer and secure with three screws.

1. Apply power to the terminal. On color terminals, listen to make

sure the fan is operating.

2. Set the mode-select keyswitch on the rear of the terminal to

CONFIGURE. The Configuration Mode menu should appear. Switch to RUN; the terminal should enter Run Mode.

3. Switch to Configuration Mode and verify that all Unit Tests in the

Configuration Mode Menu are run successfully (refer to terminal user manual).

Note: If the optional user PROMs are not installed, the Memory Checksum test will indicate a failure at memory location 5000:0000. this is normal.

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