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FORM 50.40-OM2
55YORK INTERNATIONAL
FIG. 25
DIAGNOSTICS I/O SCREEN
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.
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.
00525VIPC
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