4  MONITORING AND OPERATING THE CONTROLLER.....................................96 
4.1  Overview.......................................................................................................................................96 
4.2  Operator Interface .........................................................................................................................97 
4.3  Entering a Security Code ..............................................................................................................97 
4.4  Lockout Feature ............................................................................................................................98 
4.5  Monitoring Your Controller........................................................................................................100 
4.5.1  Annunciators ....................................................................................................................100 
4.5.2  Viewing the operating parameters....................................................................................101 
4.5.3  Diagnostic Messages........................................................................................................102 
4.6  Start Up Procedure for Operation ...............................................................................................104 
4.7  Control Modes ............................................................................................................................105 
4.7.1  Mode Definitions .............................................................................................................105 
4.7.2  What happens when you change modes...........................................................................106 
4.8  Setpoints......................................................................................................................................106 
4.9  Timer...........................................................................................................................................108 
4.10  Accutune III.............................................................................................................................109 
4.10.1  Tune for Simplex Outputs ............................................................................................110 
4.10.2  Tune for Duplex (Heat/Cool) .......................................................................................111 
4.10.3  Using AUTOMATIC TUNE at start-up for Duplex (Heat/Cool).................................112 
4.10.4  Using BLENDED TUNE at start-up for Duplex (Heat/Cool)......................................113 
4.10.5  Using MANUAL TUNE at start-up for Duplex (Heat/Cool).......................................113 
4.10.6  Error Codes...................................................................................................................115 
4.11  Fuzzy Overshoot Suppression .................................................................................................116 
4.12  Using Two Sets of Tuning Constants......................................................................................116 
4.13  Alarm Setpoints.......................................................................................................................118 
4.14  Three Position Step Control Algorithm...................................................................................120 
4.15  Setting a Failsafe Output Value for Restart After a Power Loss.............................................121 
4.16  Setting Failsafe Mode..............................................................................................................122 
4.17  Setpoint Rate/Ramp/Program Overview .................................................................................122 
4.18  Setpoint Rate ...........................................................................................................................123 
4.19  Setpoint Ramp .........................................................................................................................123 
4.20  Setpoint Ramp/Soak Programming .........................................................................................125 
5  INPUT CALIBRATION.......................................................................................132 
5.1  Overview.....................................................................................................................................132 
5.2  Minimum and Maximum Range Values .....................................................................................133 
5.3  Preliminary Information..............................................................................................................135 
5.4  Input 1 or 2 Set Up Wiring .........................................................................................................136 
5.4.1  Thermocouple Inputs Using an Ice Bath..........................................................................136 
5.4.2  Thermocouple Inputs Using a Thermocouple Source......................................................137 
5.4.3  RTD Inputs.......................................................................................................................137 
5.4.4  Radiamatic, Millivolts, Volts or Thermocouple Differential Inputs................................138 
12/04  UDC3200 Universal Digital Controller Product Manual  vi