York 00497VIP Diagnostics I/O Screen, Digital Inputs, Overview, Display Only, Programmable, Home

FORM 50.40-OM2

DIAGNOSTICS I/O SCREEN

FIG. 25

OVERVIEW

This screen is accessed from the Diagnostics Screen. This screen provides a view of the analog and digital inputs for troubleshooting .

DISPLAY ONLY

Diagnostics is used to analyze the Analog Inputs at the Microboard. The voltage level of each Analog Input, as interpreted by the Microboard, is displayed. “Counts” is an Analog-to-Digital (A/D) converter value and is for manufacturing and engineering use only.

Diagnostics is also used to analyze the state of each Microboard Program Jumper and Program DIP Switch as interpreted by the Microboard. These are depicted by an LED.

PROCEDURE

Digital Inputs:

1.The Digital Inputs are listed on this screen according to a.) Microboard Program Jumpers and Program DIP Switches. Tables 2 and 3 list the functions of the Program Jumpers and Switches.

3

00525VIPC

2.If a Program Jumper is present, the applicable LED should be extinguished. If the LED is not extinguished, the Microboard is defective.

3.If a Program Jumper is not present, the applicable LED should be illuminated. If the LED is not illuminated, the Microboard is defective.

4.If a Program Switch (DIP) is in the ON position, the applicable LED should be illuminated. If the LED is not illuminated, the Microboard is defective.

5.If the Program Switch (DIP) is in the OFF position, the applicable LED should be extinguished. If the LED is not extinguished, the Microboard is defective.

6.When all desired tests have been performed, press DIAGNOSTICS key to return to MAIN DIAGNOSTICS Screen.

PROGRAMMABLE

None

NAVIGATION

Home

Causes an instant return to the Home Screen.

Diagnostics

Causes a return to the previous screen.

YORK INTERNATIONAL 55