Electron Dynamics TC M series Operation & User’s Manual

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Electron Dynamics Ltd page 1 Index 1 Introduction..............................................................................................................................1 2 Controller Functions................................................................................................................2 2.1 Sensor measurement.....................................................................................................2 2.2 CPU ................................................................................................................................2 2.3 Output driver...................................................................................................................2 2.4 Communications.............................................................................................................2 2.5 Power..............................................................................................................................2 3 Connections.............................................................................................................................3 3.1 PT100 Measurements....................................................................................................3 3.2 PT1000 Measurements..................................................................................................3 3.3 Voltage sensor measurements.....................................................................................3 3.4 NTC thermistors.............................................................................................................3 3.5 Other temperature sensors............................................................................................4 3.6 TEC connection..............................................................................................................4 3.7 Power connection...........................................................................................................4 3.8 Alarm output...................................................................................................................4 3.9 Inhibit ..............................................................................................................................4 3.10 USB.................................................................................................................................4 3.11 PCB Connector / Link positions...................................................................................4 4 LED Status...............................................................................................................................5 5 Thermal Issues........................................................................................................................5 5.1 Sensor Selection............................................................................................................5 5.2 Thermal Assembly .........................................................................................................5 5.2.1 Heat sink size........................................................................................................5 5.3 Thermal Conduction.......................................................................................................5 5.4 Peltier Size .....................................................................................................................6 5.5 Drive Limit.......................................................................................................................6 5.6 Important stability issues ...............................................................................................6 6 Temperature Controlling.........................................................................................................6 6.1 Off mode.........................................................................................................................6 6.2 On/Off control.................................................................................................................6 6.3 PID Control.....................................................................................................................7 6.4 Tuning the PID parameters............................................................................................7 6.5 Temperature test mode..................................................................................................7 6.6 Relay Feedback – Autotuning .......................................................................................8 6.7 Ziegler - Nichols open loop – step response ..............................................................8 6.8 Ziegler - Nichols closed loop – ultimate gain method.................................................8 7 Graphical User Interface.........................................................................................................8 7.1 Pull Down Menus ...........................................................................................................9 7.1.1 File Menu...............................................................................................................9 7.1.2 Port ........................................................................................................................9 7.1.3 Help........................................................................................................................9 7.2 Control ............................................................................................................................9 7.2.1 Type.......................................................................................................................9 7.2.2 None ......................................................................................................................9 7.2.3 On/Off ....................................................................................................................9 7.2.4 Proportional.........................................................................................................10 7.2.5 Integral.................................................................................................................10 7.2.6 Derivative.............................................................................................................10 7.2.7 Derivative Filter ...................................................................................................10 7.2.8 Dead band...........................................................................................................10

Electron Dynamics Ltd page 2 7.2.9 Power Up State...................................................................................................10 7.3 Set point........................................................................................................................10 7.3.1 Method.................................................................................................................10 7.3.2 Pot Range............................................................................................................11 7.3.3 Pot Offset.............................................................................................................11 7.3.4 PC Set Point........................................................................................................11 7.3.5 Control.................................................................................................................11 7.3.6 Output..................................................................................................................11 7.4 Sensor ..........................................................................................................................11 7.4.1 Type.....................................................................................................................11 7.4.2 X2, X, C Coefficients...........................................................................................11 7.4.3 NTC thermistors..................................................................................................12 7.4.4 Units.....................................................................................................................12 7.5 Output...........................................................................................................................12 7.5.1 Polarity.................................................................................................................12 7.5.2 Minimum..............................................................................................................12 7.5.3 Maximum.............................................................................................................12 7.5.4 Frequency............................................................................................................12 7.6 Alarms...........................................................................................................................12 7.6.1 Minimum Alarm ...................................................................................................12 7.6.2 Maximum Alarm ..................................................................................................12 7.6.3 Minimum OK Temperature .................................................................................12 7.6.4 Maximum Temperature.......................................................................................12 7.6.5 Operational temperature max (Only available on certain GUI).........................12 7.6.6 Maximum Temperature (Only available on certain GUI)...............................12 7.7 Report...........................................................................................................................13 7.7.1 Set point ..............................................................................................................13 7.7.2 Temperature........................................................................................................13 7.7.3 Control.................................................................................................................13 7.7.4 Output..................................................................................................................13 7.7.5 Alarms..................................................................................................................13 7.7.6 Faults...................................................................................................................13 7.7.7 Temperature OK .................................................................................................13 7.8 Reading and Setting Parameters................................................................................13 7.8.1 Read Button ........................................................................................................13 7.8.2 Write Button.........................................................................................................13 7.9 Figure TC M series Temperature Controller GUI (Java)............................................14 7.10 C++ GUI........................................................................................................................14 7.10.1 Additional features ..............................................................................................14 7.10.2 Data Logging.......................................................................................................15 7.10.3 C++ GUI ..............................................................................................................15 8 Communication Protocol.......................................................................................................15 9 Specification TC M Series ...............................................................................................16 9.1 Supply...........................................................................................................................16 9.2 Output...........................................................................................................................16 9.3 Control ..........................................................................................................................16 9.4 Set point........................................................................................................................16 9.5 Alarm.............................................................................................................................16 9.6 Sensor ..........................................................................................................................16 9.7 Measurement Accuraccy .............................................................................................16 9.8 User ..............................................................................................................................16 9.9 Format ..........................................................................................................................16

Electron Dynamics Ltd page 3 10 Sources of Information .....................................................................................................17 There is a lot of information on the internet with some of it relevant have a look at these -......17

Electron Dynamics Ltd page 1 1 Introduction Our TC M series of Temperature Controllers are designed for use with thermoelectric coolers also known as TEC’s or Peltier devices. These offer precise temperature control from –200 ºC to 100ºC at up to 0.001ºC stability. Our controller can be setup or controlled from a PC via USB this allows access to output limits, PID terms, deviation alarms and operating modes. A typical use for any precise temperature control system would be with laser diodes, infrared detection, high gain amplifiers and cold plate assemblies. The TC M series temperature controller is suitable for controlling single and multiple TEC arrays. It provides a pulse width modulated output which effective provides a continuously variable output for cooling and heating. It is programmable from a PC allowing configuration and tuning to meet system requirements. This configuration data is stored internally allowing standalone operation once programmed. Its interface and command set allow the unit to be controlled remotely, in particular this allows changing of the set point and alarm temperature settings.