24
Model R280
Display Is Blank
If the DCV power indicator light is off but the ON/OFF switch is illuminated, try resetting the DCV circuit breaker (CB1)
in the upper left corner of the upper back panel.
If the DCV power indicator is illuminated but the display is blank, check the display cable connections and verify the
processor is fully seated. If the connections are good, replace the display PCB.
Using the Diagnostic Display (D10)
Function D10 allows the user to see the status of all controller inputs and outputs on the main screen while continuing
to use the Dispenser. As inputs and outputs turn on and off, their corresponding segment will also turn on and off. The
diagram below identifies which segment on the display will light for each input and output.
The user can continue to use both sides of the Dispenser while in this function. If an error condition occurs while in the
function it can still be reset by pressing the Enter button on the operator panel.
This function is especially useful for checking basket sensor and accumulator home switch status. It will also allow a
technician to determine when the Dispenser is calling for each side’s drum and accumulator motors to run and when
the refrigeration compressor should be running.
Figure-15
Example
The example displayed in Figure 16 indicates the
following inputs/outputs are on.
Figure-16
L Drum Motor lit The controller is calling for the left drum motor to run.
L Basket Sensor lit The left basket sensor has detected a basket.
L Acc Motor lit The controller is calling for the left accumulator motor to run.
L Home Sensor lit The left accumulator encoder sensor has detected the home position.
Refrigeration lit The controller is calling for the refrigeration compressor to run
Power lit The controller is turned on. Mainly used as a reference light.
Compressor lit The refrigeration compressor is running.
R Acc Motor lit The controller is calling for the right accumulator motor to run.
R Home Sensor lit The right accumulator encoder sensor has detected the home position.
R Drum Motor lit The controller is calling for the right drum motor to run.
R Basket Sensor lit The right basket sensor has detected a basket.
• Left Drum Motor, • Compressor
• Left Home Sensor • Right Acc Motor
• Refrigeration • Right Basket Sensor
• Power
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