B.PLC (Programmable Logic Controller) COMPONENT REPLACEMENT

1.TSX17 PLC (Programmable Logic Controller) Assembly

The TSX17 Programmable Logic Controller (PLC) is made up of three (3) components. The first and main component is the TSX17 PLC, then the Relay Outputs, and the Analog Inputs. The TSX17 PLC has a ram back-up lithium battery.

a.TSX17 PLC (Programmable Logic Controller) Component Replacement

1)Discontinue electrical service to the dryer.

2)Remove the coaxial (coax) cable from the TSX17 PLC.

3)Remove the four (4) screws securing the two (2) smoke colored bus terminal strips from the top and bottom of the TSX17 PLC.

4)Remove the two (2) screws securing the buss terminator from the TSX17 PLC.

5)Lift the cover off of the relay output component.

6)Remove the buss terminator from the TSX17 PLC.

7)Insert a standard flat head screwdriver into the "red" or "orange" tab and push down. At the same time, lift upward on the TSX17 PLC. This will remove the PLC from the rail.

8)To install new TSX17 PLC, reverse Step #7 thru Step #2.

9)Reestablish electrical service to the dryer.

2.Relay Output/Analog Input Module

a.Relay Output/Analog Input Module Replacement

1)Discontinue electrical service to the dryer.

2)Mark and identify the wires that will be removed for proper reinstallation.

3)Lift the cover off of the relay output and analog input then remove the two (2) screws securing the buss terminator to the module.

a)The buss terminator must also be removed from the TSX17 PLC and moved aside.

4)Insert a standard flat head screwdriver into the "red" or "orange" tab and push down. At the same time, lift up on the module being replaced.

5)To install new module, reverse Step #4 thru Step #2.

6)Reestablish electrical service to the dryer.

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ADC AD-464 service manual PLC Programmable Logic Controller Component Replacement