Output Calibration 
302  UDC3500 Universal Digital Controller Product Manual  3/07 
6.5  Position Proportional and Three Position Step Output Calibration 
Position Proportional control 
Position Proportional Control Output Models 
Enter the “Motor Time” as shown in Section 3.14. This model must have its 
output calibrated per the entire procedure to ensure the displayed output 
(slidewire position) agrees with the final control element position. 
Three position step control 
Three Position Step Control Output Models not using slidewire feedback. 
This model only requires that the “Motor Time” be entered as shown in Section 
3.14. 
Three Position Step Control Models using slidewire feedback. 
Enter the “Motor Time” as shown in Section 3.14. This model must have its 
output calibrated per the entire procedure to ensure the displayed output 
(slidewire position) agrees with the final control element position. 
Equipment needed 
None. 
Connections 
Apply power and leave all field wiring connected to the rear terminals. 
Procedure 
The procedure for calibrating the Three Position Step or Position Proportional control is 
listed in Table 6-7. 
Make sure LOCKOUT in Tuning Set Up group is set to NONE. See Subsection 3.4. 
ATTENTION
 For Three Position Step Control (TPSC), these prompts only appear when 
“SLIDEW” or “SW EMUL” is selected in the INPUT 3 Setup group. For Position 
Proportional Control, the Output algorithm must also be configured for “POSPROP”. The 
Motor Time must be entered in the Output Algorithm Group for both Position 
Proportional or for Three Position Step control. See Section 
3.14 for details.