GE AF-650 GP - Troubleshooting Specific Fault Symptoms; No Display Troubleshooting Steps; Intermittent Display Fault Diagnosis

F-68 Relative Scaling Reference Resource
Option: Function:
Select a variable value to be added to the fixed value (defined in par. F-64 Preset Relative Reference). The
sum of the fixed and variable values (labelled Y in the illustration below) is multiplied with the actual
reference (labelled X in the illustration below). This product is then added to the actual reference (X+X*Y/
100) to give the resultant actual reference.
This parameter cannot be adjusted while the motor is running.
[0] * No function
[1] Analog Input 53
[2] Analog Input 54
[7] Frequency input 29
[8] Frequency input 33
[11] Local bus reference
[20] Digital Potentiometer
[21] Analog input X30-11 (OPCGPIO)
[22] Analog input X30-12 (OPCGPIO)
3.3.8 F-9# Digital Potentiometer
Parameters to configure drive digital pot-meter function.
AF-650 GP Programming Guide
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