Lakeshore 330 - Chapter 2 Installation; 2.3 Definition of Rear Panel Connections; 2.4 Sensor Input Settings; 2.5 Grounding and Shielding

Lake Shore Model 330 Autotuning Temperature Controller User’s Manual
ii Table of Contents
Chapter/Paragraph Title Page
3.2.7 SoftCal ............................................................................................................................. 3-5
3.2.7.1 SoftCal Errors ............................................................................................................... 3-5
3.2.7.2 Customer-Performed SoftCal ....................................................................................... 3-6
3.2.7.3 Entering Voltage Values from a Lake Shore SoftCal Report........................................ 3-6
3.3 Control Functions ................................................................................................................ 3-8
3.3.1 Heater .............................................................................................................................. 3-8
3.3.2 Setpoint and Control ........................................................................................................ 3-8
3.3.2.1 Voltage Resolution (Models 321-1X, -3X, & -4X Only)................................................. 3-9
3.3.2.2 Resistance Resolution (Model 330-2X Only)................................................................ 3-9
3.3.3 Ramp ............................................................................................................................... 3-9
3.3.4 AutoTune ......................................................................................................................... 3-9
3.3.4.1 Initial Values of PID Parameters in Autotuning Mode................................................. 3-10
3.3.4.2 Minimum Overshoot ................................................................................................... 3-10
3.3.4.3 Minimum Time To Setpoint ........................................................................................ 3-10
3.3.4.4 Gain Only.................................................................................................................... 3-10
3.3.5 Manual Control Settings (PID) ....................................................................................... 3-10
3.3.5.1 Setting Gain (Proportional) ......................................................................................... 3-10
3.3.5.2 Setting Reset (Integral)............................................................................................... 3-10
3.3.5.3 Setting Rate (Derivative)............................................................................................. 3-11
3.3.5.4 Effect of Temperature on Tuning Parameters............................................................ 3-11
3.3.6 Zone Setting................................................................................................................... 3-11
3.4 Interface and Miscellaneous Functions............................................................................. 3-13
3.4.1 Baud............................................................................................................................... 3-13
3.4.2 Address.......................................................................................................................... 3-13
3.4.3 Local .............................................................................................................................. 3-13
3.4.4 Instrument Reset and Factory Default Settings ............................................................. 3-13
3.4.5 Power Up (PUP) Configuration...................................................................................... 3-14
3.5 Thermocouple Controller Operation (Model 330-4X Only) ............................................... 3-15
3.5.1 Sensor Attachment ........................................................................................................ 3-15
3.5.2 Thermocouple Curve Selection ..................................................................................... 3-15
3.5.3 Thermocouple Compensation From Front Panel .......................................................... 3-15
3.5.4 Thermocouple Compensation From Remote Interface ................................................. 3-15
3.5.5 Internal Offset Adjustment ............................................................................................. 3-15
3.5.6 Curve Format................................................................................................................. 3-15
4 REMOTE OPERATION.......................................................................................................................... 4-1
4.0 General ............................................................................................................................... 4-1
4.1 IEEE-488 Interface.............................................................................................................. 4-1
4.1.1 IEEE-488 Interface Settings ............................................................................................ 4-1
4.1.2 IEEE-488 Command Structure ........................................................................................ 4-1
4.1.2.1 Bus Control Commands ............................................................................................... 4-2
4.1.2.2 Common Commands ................................................................................................... 4-2
4.1.2.3 Interface and Device Specific Commands ................................................................... 4-2
4.1.3 Status Registers .............................................................................................................. 4-2
4.1.3.1 Status Byte Register and Service Request Enable Register ........................................ 4-2
4.1.3.2 Standard Event Status Register and Standard Event Enable Register........................ 4-3
4.1.4 Example IEEE Setup and Program ................................................................................. 4-4
4.1.4.1 GPIB Board Installation ................................................................................................ 4-4
4.1.4.2 Run the Example QuickBasic Program ........................................................................ 4-4
4.1.5 Notes On Using the IEEE Interface ................................................................................. 4-4
4.2 Serial I/O Interface .............................................................................................................. 4-7
4.2.1 Serial Interface Hardware Configuration.......................................................................... 4-8
4.2.2 Sample BASIC Serial Interface Program......................................................................... 4-8
4.2.3 Notes On Using The Serial Interface............................................................................... 4-8