York YCAS0130 manual Micro Panel Contents, Service Mode Viewing Inputs And Outputs

Micro Panel Contents

SERVICE MODE: VIEWING INPUTS AND OUTPUTS

All digital and analog inputs and digital outputs can be viewed by pressing the FUNCTION key and the press- ing of the OPER DATA key. The UP and DOWN arrow keys can then be used to scroll through the inputs and outputs.

Each analog input will display the name of the measured value, the input plug/pin number on the microboard, the voltage read on the input, and the voltage converted to pressure or temperature. An example is shown below:

S Y S	1 S U C T P R J 1 3 - 7
X . X	V D C = X X X X PSIG

Each digital input will display the name of the measured value, the input plug/pin number on the micro board, and the state of the input (ON or OFF). An example is shown below:

S Y S 1 R U N P E R M

J 4 - 5 I S O F F

Each digital output will display the name of the item controlled by the output, the output plug/pin number on the microboard and the state of the output (ON and OFF). An example is shown below:

S Y S	1 L L S V
J 7 - 3	I S O F F

FORM 201.19-NM1 (204)

SERVICE MODE: OUTPUT ENABLE

The Service Mode allows the user to enable and disable the outputs (except compressor). To enter the Service Mode, turn the UNIT switch off and press PROGRAM, 9675, ENTER. A message will be displayed for 2 sec- onds indicating that the service mode has been enabled. Service Mode will time out after 60 minutes and return to the normal mode. Service mode can also be disabled by turning the UNIT switch on or by powering the 115 VAC off and on.

Once Service Mode is entered, all of the outputs will be turned off. The outputs can be turned on by pressing.

FUNCTION and then the OPER DATA key and scroll- ing past the input displays to the output displays. The arrow keys are used to scroll forward and backwards in the displays, while the ENTER key is used to toggle the outputs on and off. Only one output will be allowed on at a time. The only exception will be the compressors which cannot be turned on and off in this mode.

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