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PICOLAS PL-TEC-2-1024 User Manual

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PL PL PL PL- - - - TEC
TEC- - - - 2 2 2 2 - - - - 1024
TEC
TEC
1024
1024
1024
Rev. 11
Rev.
11. . . . 10
10
Rev.
Rev.
11
11
10
10

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Summary of Contents for PICOLAS PL-TEC-2-1024

  • Page 1: Tec-2-1024

    User Manual User Manual User User Manual Manual Rev. Rev. 11 11..10 Rev. Rev. PL PL PL PL- - - - TEC TEC- - - - 2 2 2 2 - - - - 1024 1024 1024 1024...

  • Page 2: Table Of Contents

    Table of Contents PL-TEC-2-1024..........................1 Table of Contents ........................2 Description of Connections......................3 How to get started with an PLB-21 ..................... 7 How to get started without an PLB-21 ..................7 Dos and Don’ts ........................... 8 Absolute Maximum Ratings ......................8 Functional Description ........................

  • Page 3: Description Of Connections

    Description of Connections The following drawing shows all connections which are available to the user. 4 Holes for Heatsink (3.1 mm trough) TEC connector screw terminals (refer to table) NTC and Switch PT100 (shown in upper connectors position) (see table) LDP-C-BOB-Connector (Pin 1 marked) RS232 / PLB-Conn.(Pin 1 marked) Supply voltage 12..48V, 50 V max.
  • Page 4 For a more convenient use of the driver (e.g. in laboratory use) we recommend the optional available product accessory LDP-C-BOB. Please see LDP-C-BOB manual for further details. Pin-Assignments and Description of the MOLEX-Pinheaders. The pictures are in the same view than the overview picture. Pin Number Description Direction...
  • Page 5 Pin-Assignments and Description of the Thermistor-Pinheaders. The pictures are in the same view than the overview picture. Warning: For improved EMI noise immunity the leads of the thermistors must be kept floating. The GND-Pins of the PT100 can be used for shielding. Shielding must be kept single ended, too.
  • Page 6 Pin-Assignments and Description of the TEC srew terminals. The pictures are in the same view than the overview picture. Output Dual Channel Single name operation Channel Picture of the pcb in same position as in main operation overview Switch in Switch in shown position lower...

  • Page 7: How To Get Started With An Plb-21

    How to get started with an PLB-21 What to do Note Step # Unpack your Device. Connect the PLB-21 Use PLB-21 Pinheader and special cable Apply the supply voltage. Apply any voltage between 12 V and 48 V at “VCC” with respect to GND. Wait until “pulser-ok”...

  • Page 8: Dos And Don'ts

    Dos and Don’ts Never make a short at the output. This will not do any harm to the laser driver but will yield in an incorrect current measurement. Mount the driver on an appropriate heat sink. The driver will shut down under over temperature circumstances.

  • Page 9: Functional Description

    Functional Description The PL-TEC operating principle is based on the LDP-CW 2050. LDP-CW operates with four parallel buck converters (S1, S2, D1, D2, L1; S3, S4, D3, D4, L2; S5, S6, D5, D6, L3; S7, S8, D7, D8, L4). Every single converter has an independent control loop with a current sensor (Imeas1, Imeas2, Imeas3 and Imeas4).

  • Page 10: Power Supply

    Power Supply The power supply must be able to cover the output power plus the internal power losses (refer to next chapter). Example: You have a 48 V power supply. The maximum TEC power will be 240 W at 6 A. The total power consumption will be: 240 W + 12 W = 252 W.

  • Page 11: Mechanical Dimensions

    Mechanical Dimensions Over all height: 30 mm All dimensions in mm...

  • Page 12: Power On Self Test

    PLB-21 below. If the TEC is connected to a PC, all operating parameters can be accessed via a serial RS232 terminal program or the PicoLAS protocol. For a detailed description of the serial text protocol and the PicoLAS protocol see below.

  • Page 13: Controlling The Driver Using A Plb-21

    Controlling the driver using a PLB-21 When the PLB-21 is connected the first time to the driver the user is asked to download a new driver. This must be confirmed with “yes” for working the PLB-21 properly. Menu Structure Menu Structure Menu Structure Menu Structure The following diagram shows the structure of the PLB-21 menu which affects the driver.
  • Page 14 Setpoint In this menu point the setpoint temperature for channel 0 and 1 can be modified. Furthermore the actual temperatures can be read. 1: 1: 1: 1: stp. stp. F F F F stp. stp. 1 1 1 1 This value defines the setpoint temperature of TEC channel 1 in dual channel mode or the setpoint temperature in single channel mode.
  • Page 15 Defaults The driver can load a default setting each time it powers up or the user commands it to do so. This is done within this Submenu. Def. pwron Def. pwron Def. pwron Def. pwron When enabled, the driver loads the saved settings each time it powers up. Load Load Load...

  • Page 16: Controlling The Driver Via Pc

    When the TEC is connected to a PC, it allows communications over a serial text interface as well as the PicoLAS protocol. While the text interface is designed for communication with a terminal program, the PicoLAS protocol is designed as a system interact protocol.
  • Page 17 The Serial Text Interface The Serial Text Interface The Serial Text Interface The Serial Text Interface The following section describes the structure and commands of the text interface. Structure Structure Structure Structure Every command that is sent to the TEC must be completed with a CR (Enter). It consists of a command word followed by a parameter.
  • Page 18 Command Command Command Command Parameter Parameter Parameter Parameter Answer Answer Answer Answer Description Description Description Description <channel> Activates the control loop of the given channel Note: In single channel mode the first parameter <channel> must not be set! coff <channel> Deactivates the control loop of the given channel Note: In single channel mode the first...
  • Page 19 Command Command Command Command Parameter Parameter Parameter Parameter Answer Answer Answer Answer Description Description Description Description <channel> D value Returns the parameter of the D-controller of the given channel. Note: In single channel mode the first parameter <channel> must not be set! gdmin minimum D Returns the minimum parameter of the D-...
  • Page 20 Command Command Command Command Parameter Parameter Parameter Parameter Answer Answer Answer Answer Description Description Description Description smaxcur <channel> <current> Sets the maximum current of the selected channel to the given value. Note: In single channel mode the first parameter <channel> must not be set! gmaxcurmin maximum Returns the minimum output current of the TEC...
  • Page 21 The PicoLAS Protocol The PicoLAS Protocol The PicoLAS Protocol The PicoLAS Protocol The following section describes the structure and possible commands of the PicoLAS protocol. Structure Structure Structure Structure Each transmission consists of 12 bytes – called a frame as follows – which must be sent consecutively.
  • Page 22 General Commands General Commands The following list contains an overview of the general commands which are supported by every product from PicoLAS which makes use of this protocol. The explanation of the individual commands is given further below. Comm Comm...
  • Page 23 Commands for the Commands for the driver Commands for the Commands for the driver driver driver The following table contains a list of the commands which the TEC supports in addition to the generally applicable commands. An explanation of the individual commands and its parameters follows afterwards.
  • Page 24 Command Command Command Command Sent Frame Sent Frame Sent Frame Sent Frame Received Frame Received Frame Received Frame Received Frame Command Command Parameter Parameter Command Parameter Command Parameter Command Command Parameter Parameter Command Command Parameter Parameter GETTNTCMIN GETTNTCMIN GETTNTCMIN GETTNTCMIN 0x0058 0x010F 32 bit value...
  • Page 25 Description of the Individual Description of the Individual Commands Description of the Individual Description of the Individual Commands Commands Commands GETSOLL SOLL SOLL SOLL This command returns the setpoint temperature of the given channel [0|1]. The lower 32bit of the return value represents the setpoint in a 32-bit integer format in steps of 0.01 °C.
  • Page 26 GETKPMIN GETKPMIN GETKPMIN GETKPMIN The return value contains the minimum value of the P-controller. GETKPMAX GETKPMAX GETKPMAX GETKPMAX The return value contains the maximum value of the P-controller. GETKP GETKP GETKP GETKP This command returns the value of the P-controller of the given channel [0|1]. The lower 32bit of the return value represents the data in a 32-bit integer format.
  • Page 27 GETRNTCMIN GETRNTCMIN GETRNTCMIN GETRNTCMIN The return value contains the minimum possible resistance value of the NTC channels. The lower 32bit of the return value represents the data in a 32-bit integer format. GETRNTCMAX GETRNTCMAX GETRNTCMAX GETRNTCMAX The return value contains the maximum possible resistance value of the NTC channels. The lower 32bit of the return value represents the data in a 32-bit integer format.
  • Page 28 SETTNTC SETTNTC SETTNTC SETTNTC This command sets the NTC norm temperature to the given data. The bits 56 … 63 select the input NTC channel, the bits 0…31 represents the norm temperature in a 32 bit signed integer format in steps of 0.1°K.
  • Page 29 GETREGLERPARAM GETREGLERPARAM GETREGLERPARAM GETREGLERPARAM This command returns the actual parameters used by the PIC controller. The given parameter selects the data which is to be returned. Possible values are: Parameter Parameter Return value Return value Parameter Parameter Return value Return value reserved reserved reserved...

  • Page 30: Register Description

    Register description Description of the STAT Register Description of the STAT Register Description of the STAT Register Description of the STAT Register The following list contains a description of the individual STAT bits. These can be read with GETSTAT and written with SETSTAT. With SETLSTAT a complete 32 bit word must always be written. Thus, to change individual bits, the register must first be read out with GETSTAT, then the desired bits changed and then with SETSTAT passed again to the TEC.
  • Page 31 Description of the ERROR Register Description of the ERROR Register Description of the ERROR Register Description of the ERROR Register The following list contains a description of the individual bits of the ERROR register. A “1” as a bit leads to a deactivation of the drivers output. The Bits 0 and 1 are cleared every time the ENABLE pin is set low or when the CLEAERROR command is used.

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