Laird PR-59 User Manual
  1. Manuals
  2. Brands
  3. Laird Manuals
  4. Temperature Controller
  5. PR-59
  6. User manual

Laird PR-59 User Manual

Temperature controller and lt- interface
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
PR-59 Temperature Controller
and LT- Interface
User Manual Version 1.2

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the PR-59 and is the answer not in the manual?

Questions and answers

Related Manuals for Laird PR-59

Summary of Contents for Laird PR-59

  • Page 1 PR-59 Temperature Controller and LT- Interface User Manual Version 1.2...

  • Page 2: Table Of Contents

    Introduction to LT- Interface and PR-59 ..................3 Introduction ..........................3 1.2 Compatibility ..........................3 1.3 Feature List of LT-Interface and the PR-59 .................. 3 2. Quick Start Guide ..........................4 3 Commands Overview ......................... 7 3.1 View Menu ............................ 7 3.2 Regulator Menu ..........................

  • Page 3: Introduction To Lt- Interface And Pr-59

    1. Introduction to LT- Interface and PR-59 1.1 Introduction Thank you for purchasing the TC-XX-PR-59 programmable controller. The unit is designed for reversible (cooling/heating) control of Thermoelectric Assemblies that require precise temperature control accuracy. The controller not only regulates the temperature, but also features two programmable fan outputs and an alarm output relay.

  • Page 4: Quick Start Guide

    If load current is higher than 15A, sufficient cooling of the controller is needed. Install the software onto PC. Software can be downloaded from lairdthermal.com website on the TC-XX-PR-59 product page. Connect power supply, communication wire, sensor and thermoelectric assembly/modules (TEM’s) to the controller according to the picture below.
  • Page 5 The applied voltage should not exceed the voltage rating of the TEM(s)/TEA. Also note that the solder pads on the board may have to be shorted depending on the applied voltage, see picture below. If TC-WIRE3 is used for the T1 sensor, interconnect the red and brown wires at the sensor connection end.
  • Page 6 FLASH memory. Enter “Regulator > Save to FLASH”. Otherwise the parameters will be lost at power down. To retrieve the configuration that is in the PR-59, press “RETRIEVE” and the parameters will be uploaded from the PR-59 to the LT-Interface.

  • Page 7: Commands Overview

    3. Commands Overview 3.1 View Menu To change visible views. Toolbar Add or remove Toolbar Status Bar Add or remove Status Bar Runtime View Show or hide the runtime data window. 3.2 Regulator Menu To send or receive commands and data to and from the regulator unit. Connect To connect regulator board to serial interface connection.

  • Page 8: Setup Menu

    Runtime Data This is the transfer mode between the interface and control board. Runtime data should be IEEE754 type at all times. Only change this if you are advised by Laird Thermal Systems Runtime Graph Runtime graph can sometimes be difficult to see especially when multiple parameters are highlighted.

  • Page 9: Logfile Menu

    3.4 Logfile Menu Log data on a file, which can be referenced and compared to other log files. Start Click Start to log all runtime data onto a file. When the log file is activated, runtime data from the regulator is stored to a tab-separated text file, which can be opened in Excel formatted for further data analysis.

  • Page 10: User Tabs

    the controller you need to save to FLASH. Otherwise settings will be lost at power down, ref Section 3.2. Click RETRIEVE to upload settings from the controller board. Input Displays live feedback from the controller board, calculated with user settings to indicate values. Regulator Information Displays the set point and temperature point used in the regulator control loop.

  • Page 11: Runtime

    5.2 Runtime Runtime tab allows user to visually monitor operation parameters of controller. A live running time scale graph appears that allows user to view main power, thermistors, temperature set points, input current draw, input voltage to TEMs, input power to fans and PID parameters. The live data graph is updating data continuously when connected to the regulator board.

  • Page 12: Alarm

    5.3 Alarm Alarm settings Alarm tab allows user to input alarm settings for input voltage, output current, limits on current to fans and high/low temperature limits for up to four thermistors. If alarm is activated unit will shut down until user resets controller.

  • Page 13: Sensor

    The FAN tab allows user to control two fans (hot side fan and cold side fan) independently by turning on fans permanently, only in heating mode and/or cooling mode, during specific temperature set points, during specific hysteresis range, under specified voltage limits or turning off during specific dead bands.
  • Page 14 If a custom NTC is used and parameters are set manually, then set the low and high values to match the expected temperature range in the application. This will result in obtaining best accuracy. If a PT sensor is used, select PT mode and assemble the jumper on the PR-59 board, ref the product...

  • Page 15: Regulator

    Sensor 4 is mounted on the metal bracket of the PR-59 and is monitoring the temperature of the bracket so the PR-59 does not over heat. Default alarm level is set to 60°C and if it is reached, an external fan is required for additional cooling.
  • Page 16 0 to 100%. Note that it is the average power that is reduced with PWM (Pulse Width Modulation), so the peak voltage is still approximately the same as applied to the PR-59. This is why applied voltage to the PR-59 should not be higher than Vmax of the load.
  • Page 17 Heating Gain/Cooling Gain Adjusts the effectiveness of the output elements to accommodate uneven output power in the thermoelectric modules. This allows for a better balance between the power in cooling and heating mode. Decay when stopped When the regulator is stopped the internal register values used in the PID regulator will decay to zero with the speed of the value selected in this field.

  • Page 18: Error Handling

    An error message will be shown in the main view if an error is received from the controller. Error when writing data – error 3 [Timeout – echo msg]: • The LT-Interface does not get an expected response from the PR-59. Check the following: Controller is connected to the computer.

  • Page 19: Contact Laird Thermal Systems

    Have a question or need more information about Laird Thermal Systems? Please contact us via the web. www.lairdthermal.com Trademarks © Copyright 2019-2021 Laird Thermal Systems, Inc. All rights reserved. Laird™, the Laird Ring Logo, and Laird Thermal Systems™ are trademarks or registered trademarks of Laird Limited or its subsidiaries. LTS-PR-59-Serial-Command-Interface-User-Manual-090621...

Table of Contents