M32 QS - Cryogenic Control Systems, Inc.
Contents
1. A Quick Start Guide to the Model 32 32B ar Slehae pM 32 Temperature Controller Control Alarm Power Stop Control BASIC FRONT PANEL OPERATION Pressing the Power key will toggle the controller s AC power on and off This key must be pressed and held for two seconds Pressing the Stop key will immediately disengage both control loops Pressing the Control key will engage them Pressing the Home key will return the screen to the Home display from anywhere in the sub menus The Home display is the primary display for instrument status and can be configured by pressing the Display key CONTROL LOOP SETPOINTS To access the setpoint for the control loops press the Set Pt key and then use the and keys to select Loop 1 or Loop 2 Use the keypad to enter the desired setpoint and press the Enter key to set it and return to the Home display CLEARING A LATCHED ALARM During an alarm condition the Alarm LED on the front panel will light and an audio alarm will optionally sound To view the status of all alarms press the Alarm key To reset a latched alarm press the Alarm key and then the Home key DISPLAY OPTIONS The display time constant and display resolution fields may be accessed by pressing the Sys key The SYS Display TC field is used to smooth temperature data with filters from 0 5 to 64 seconds This is useful in noisy SYS Display TC 0 5SM environments to provide stable readings The display resolution field2. F Manual control mode A constant heater output power is applied The Pman field selects the output power as a percentage of full scale Standard PID control The Pgain Igain and Dgain fields hold the PID values Igain is in seconds and Dgain is in inverse seconds PID control mode where the PID coefficients are generated from a stored user supplied PID table Temperature ramp control CONFIGURING THE LOOP 2 OUTPUT The second control loop of a Model 32B controller is a fixed 10 Watt output that is matched to a 50Q resistive load Therefore there are no load resistance or range settings to configure On the standard Model 32 the second control loop is a zero to 10 0 Volt output that is intended to drive a booster supply or other voltage controlled device It is not a heater output Rear Panel Connections Cryogenic Control Systems Inc Model 32 32B Temperature Controller 100 240VAC 50 60Hz 175W Max Made in USA AC POWER CONNECTION Before connecting AC power check the input voltage setting through the window on the power entry module to ensure that it is set properly SENSOR CONNECTIONS Silicon Diode and all resistor type sensors should be connected to the Model 32 using the four wire method It is strongly recommended that sensors be connected using shielded twisted pair wire Wires are connected as shown below and the shield should be connected to the metal backshell of the connector JU Function Exc
3. SYS Display RS is used to set the number of significant digits shown in temperature displays Settings 1 2 3 or Full CONFIGURING A TEMPERATURE SENSOR To configure an input channel for a specific temperature sensor press the ChA key for input A or the ChB key for input B The first line of this menu is used to change the sensor units An example is shown here Change the sensor units by using the right and left arrow keys or 4 When the desired units are shown press the Enter key to make the selection The current temperature is continuously displayed Home A 77 123 KM Loop 1 Loop 2 Esc ChA ChB Config Sys u O O PID Sensors Table ES Display Enter Set Pt Alarm Next go to the sensor selection field by pressing the down arrow key Use the right and left arrow keys and 4 to scroll through the available sensors When the ASen Pt100 385 W desired sensor is shown press the Enter key to make the selection __Sensor___ Description Cd None Disable input channel PHIK385 10009 Platinum RTD Cd RhFe 27 1mA Rhodium lron 279 1mA excitation RO 105 DC 10uA SI RO 105 RuOx sensor RO 600 AC SI RO 600 RuOx sensor AC excitation Thermocouples type K E and T Direct input to the controller Visible only on re pas z units with the Thermocouple option yP installed User Sensor 1 User supplied sensor t User Sensor2 User supplied sensor 2 User Sensor 3 User sup
4. itation l Sense V Do not connect i Sense V Excitation I a kRWN Cryogenic Control Systems Inc PO Box 7012 Rancho Santa Fe CA 92067 QS32 0406a IEEE488 2 c Note The input connectors on the Model 32 will mate with either DIN 5 or DIN 6 plugs Wiring is identical If a DIN 6 plug is used Pin 6 is not connected Thermocouple sensors use a special connector that is provided with the controller Sensor connection is made at the screw terminals Proper polarity of the sensor wires is required LOOP 1 CONNECTION Primary Heater Output Loop 1 connections are made using two pin banana plugs Pin One HI is the positive output and Pin Two Lo is the ground return The shield of the output cable should be connected to the third pin of the banana plug Ensure that the heater is floating as the Model 32 does not support grounded heaters For more information refer to the users manual section titled Rear Panel Connections Telephone 858 756 3900 Fax 858 759 3515 E mail sales cryocon com www cryocon com
5. plied sensor 3 TC type K For advanced information on sensor configuration see the user s manual section titled Configuring a Sensor CONFIGURING A USER SENSOR User sensors may be entered from the front panel However it is much easier to enter them via one of the remote I O ports Please refer to the user s manual chapter titled Cryo con Utility Software For details on front panel entry or edits refer to Configuring a Sensor CONFIGURING THE LOOP 1 OUTPUT Before using the Loop 1 main heater control output it is essential that the proper load resistance and output range be selected LJ Press the Loop 1 key to go to the Control Loop Setup menu for Loop 1 LJ Use the up arrow and down arrow keys and to scroll to the Htr Resistance field and then use the left and right arrow keys and 4 to select between a 500 and a 250 heater and then press the Enter key L1Htr Resistance 50Q W LJ Use the up arrow and down arrow keys and to scroll to the Range field and then select Hi Mid or Low LJ Next the control type usually PID should be set This is done by scrolling to the Type field and selecting the desired loop control mode For information on how to determine PID values for the control loop please refer to the user s manual section titled Autotuning for automatic generation or to Appendix D Tuning Control Loops Description Control loop is OF
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