Sepradel DG-3O1I-17 User Manual
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Sepradel DG-3O1I-17 User Manual

Three channel delay generator
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User MAnual Rev. F
Soluciones y Tecnologías de Control
Embebido SAPI de CV
Bélgica 304A, Altamira, TAMPS, MX, 89606
+52 1 833 3894054

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  • Page 1 User MAnual Rev. F Soluciones y Tecnologías de Control Embebido SAPI de CV Bélgica 304A, Altamira, TAMPS, MX, 89606 +52 1 833 3894054...

  • Page 2: Environmental Specifications

    Therefore, high voltage pulses that may be applied by mistake to the input or outputs of the DG-3O1I-17, will not be transmitted to the computer equipment or to the external power supply. The protection is in both directions, that is, some damage to the computer or transitory equipment in the power line, nor will it be passed to the DG-3O1I-17 output lines..

  • Page 4: Table Of Contents

    About the input parameter "Wait Time" ................8 Using the Delay Generator as a Bounce Filter ..............8 Material and Mechanical Dimensions ..................9 Turning the DG-3O1I-17 On and Off ..................9 Equipment Configuration and Control from Touch Screen ............11 Configuring the Input Channel....................12 Configuring Output A ......................
  • Page 5 Example of Connection with commercial Quantel USA Laser with Source and Control Type ICE450 ..............................27 Configure the Quantel USA laser .................... 27 Configure DG-3O1I-17 Delay Generator ................. 28 DG-3O11-17 Input Configuration ..................28 Configuration of Output B for Q-Switchof the Quantel laser ..........29 Output C Configuration for Optical Spectrometer .............

  • Page 6: Unpacking And Inspection

    Components included When you receive your container, verify that at least the following items are present: 1. The Delay Generator DG-3O1I-17 2. Wall eliminator with 9VDC output and 100VAC - 220AC input 3. A commercial invoice or final component list (useful in case of adding an optional accessory to the shipment, such as a power spigot adapter for a region other than America).

  • Page 7: Security Advice

    Off” on page 9 If a DG-3O1I-17 output is modified in terms of output logic, a level change will occur in it, for example from 0V to 5V and the external laser that is connected to said output can detect the pulse as a command to perform a laser shot, so if the proper precautions are not taken you would inadvertently get a laser shot, with the risks that this implies.

  • Page 8: Technical Characteristics

    Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Technical characteristics Model DG-3O1I-17 • • Three independent TTL outputs The outputs are configurable as to type of logic (positive / negative), width of the •...

  • Page 9: Introduction

    DG-3O11-17 as part of an automated installation. The DG-3O1I-17 can be understood as a device that with one input stimulus pulse generates three output pulses. These output pulses are generated some time after the input stimulus and with the following properties: 1.
  • Page 10 Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 By changing the logic type of an output, the corresponding indicator will also change color. In negative logic, for example, the output will remain high at all times and the indicator light will be red, and will only change to low during the pulse width time that has been configured in said output.

  • Page 11: Input

    Internal Structure of the Delay Pulse Generator The following figure shows in a simplified way the structure or internal logic of the Pulse Generator with Programmable Delays DG-3O1I-17. The function of Counting pulses at the input will be detailed later, but basically allows the Device to activate the outputs only when a certain number of pulses have arrived at the input.
  • Page 12 "Selector" module, but "Out A" only receives pulses directly from "IN" through its "Delay A". Such configuration of outputs allows in those applications where it is necessary to control the firing of a flash lamp from the DG-3O1I-17 uninterruptedly, while an optical switch (Q-switch active) is...
  • Page 13 Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 activated only every certain number or count of shots in the flash lamp. Then, the control of the flash lamp would be taken directly from "Out A" while the active Q-switch would be controlled from "Out B"...
  • Page 14 Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Fig. 5. Behavior of the outputs with respect to an input pulse, pulse counter deactivated and with output channels C and A in negative logic...

  • Page 15: Device Behavior Activating The Pulse Counter

    Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Fig. 6. Behavior of the outputs with respect to a negative logic input pulse, with falling edge detection activated at IN input Device behavior activating the pulse counter Fig.

  • Page 16: About The Input Parameter "Wait Time

    Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Fig. 8. Behavior of the outputs with the Pulse Counter activated to detect 4 rising edges, regardless of the time variation between input edges About the input parameter "Wait Time"...

  • Page 17: Material And Mechanical Dimensions

    The equipment is powered on as soon as the 9VDC-12VDC DC-IN power supply is connected to the DG-3O1I-17, or to the USB bus of a PC or Cell phone charger. The equipment has a low power consumption of 2.5W maximum. At the end of a day, it is recommended to first turn off or disconnect the laser connected to the DG-3O1I-17 and then disconnect the external power supply from the delay generator.

  • Page 19: Equipment Configuration And Control From Touch Screen

    +52 1 833-389-4054 Equipment Configuration and Control from Touch Screen When energizing the DG-3O1I-17 equipment, its inputs and outputs will be automatically configured with the last configuration used. When turning on the equipment, the home screen similar to the one shown in the following figure will appear on the touchscreen.

  • Page 20: Configuring The Input Channel

    Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 For the personalization of the home screen, the user can send a file in JPG format with their design, the dimensions must be 270 x 50 pixels. You can also leave the customizable area blank.
  • Page 21 Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 “Enable Mark/No mark Without checking, the equipment works in normal Counter?” mode, each input pulse will be followed by pulses at the outputs with their respective programmed delays. If...
  • Page 22 Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 time between pulse and pulse of the input packet could be random, as it happens in some multipulse lasers with saturable passive type optical switch (Q-Switch passive). Then, to obtain a...
  • Page 23 Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 In the title section “Example of Connection with commercial Quantel USA Laser with Source and Control Type ICE450” on page 27, An application of the pulse counter is described, for the...

  • Page 24: Configuring Output A

    Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. Configuring Output A www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Pressing the touch button denoted by "A" on the main screenl (see Fig. 10), the configuration of output channel “A” will be accessed, as shown in the following figure.
  • Page 25 Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Tabla 2. Controls Description of Output Channel A, similar to Channel B and C Control Range of Values Function “Invert digital Mark/No mark Unchecked: the output will be positive logic. With mark: output?”...

  • Page 26: Configurando Salida B

    Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. Configurando Salida B www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Pressing the touch button denoted by "B" on the main screen (see Fig. 10), the configuration screen for output channel “B” will be accessed, similar to the following figure.

  • Page 27: Configuring Output C

    Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. Configuring Output C www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Pressing the touch button denoted by "C" on the main screen (see Fig. 10), the configuration screen for output channel “C” will be accessed, similar to the following figure.

  • Page 28: Manual Trigger With Touch Button "Soft Trigger

    Manual trigger with touch button "Soft Trigger" www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Once the input and output channels have been configured, it is recommended to verify the parameters by manually triggering the outputs. In order not to depend on the arrival of the input pulses, a button called “Soft Trigger”...

  • Page 29: Display Contrast Regulation

    Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. Display contrast regulation www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 The “ABOUT” button, present in the lower left corner of the Home Screen, see previous figure, provides access to equipment information, web contact and display contrast regulation, to regulate its brightness level.

  • Page 31: Active Q-Switch Generic Laser Connection Example

    The following figures show suggestions for interconnection of these commercial lasers with the DG-3O1I-17 delay generator and an optical spectrometer. In such a way that great control flexibility is obtained from both the laser and the spectral reading device. Although the suggested...
  • Page 32 Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 you must also set the ideal delay between the sync pulse of the flash lamp and the pulse destined for the spectrometer. As a general rule, it is recommended to first adjust the delay of channel “C”...
  • Page 33 20. Fig. 27. Lamp control, Q-Switch and spectrometer from the DG-3O1I-17, the shot is made from a button on the touch screen or with a square pulse generator (not shown in the image) that is connected to the IN input...

  • Page 34: Trigger Control Via Usb

    Fig. 28. Lamp control, Q-Switch and spectrometer from DG-3O1I-17 connected to a PC for repetition of the trigger command with programmable frequency The DG-3O1I-17 equipment is recognized by the PC via the USB bus as a serial port, for example COM3 (the port number may vary and is automatically assigned by the PC).

  • Page 35: Ice450

    Fig. 31. Laser flash lamp menu, with internal mode selected Then access the configuration menu of the optical switch triggering or Q-Sw, to configure it in external mode (EXT), since the Q-Switch will be externally controlled by the DG-3O1I-17. See the...

  • Page 36: Configure Dg-3O1I-17 Delay Generator

    DG-3O11-17 Input Configuration The input of the DG-3O1I-17 will later be connected to the BNC connector of the Quantel laser, which is the output of the flash lamp signal and may be marked as “Lamp OUT”...

  • Page 37: Configuration Of Output B For Q-Switchof The Quantel Laser

    Quantel laser flash lamp at 20 Hz, you will get laser shots at 2 Hz. Configuration of Output B for Q-Switchof the Quantel laser Output “B” of DG-3O1I-17 will be connected to the Q-Switch In input connector of the Quantel laser. According to page 13 of the consulted manual , the pulses for said input must be TTL compatible and with a width of not less than 100 µs.
  • Page 38 Connect the DG-3O1I-17 to the laser. Note that if you adjust the channel B assigned to the Q- Sw, you may have to readjust the C delay of the spectrometer, since both delays are triggered from the same input signal, and therefore the time difference between channel B and C is what will be effectively regulating the quality of the capture spectra.
  • Page 39 Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Fig. 36. Interconnection of the retarder with the Quantel laser and the spectrometer, lamp output to the retarder input, channel B of the retarder to the QS input of the Laser, Channel C to the trigger input of the...

  • Page 41: Passive Q-Switch Laser Connection Example

    The following figure shows an assembly to trigger an optical spectrometer using the DG-3O1I-17 from the analog signal of a PDA10A type photodiode module from the manufacturer Thorlabs.
  • Page 42 Fig. 38. Example of LIBS experiment with Sepradel Laser with passive Q-Sw, Spectrometer triggering from the optical detection of a laser pulse...

  • Page 43: Problem Resolution

    Soluciones y Tecnologías de Control Embebido S.A.P.I. de C.V. www.sepradel.com contacto@sepradel.com +52 1 833-389-4054 Problem resolution If there are synchronism problems with the external equipment that you are controlling, it is suggested to consider the following points: • Check continuity and good condition of BNC cables.

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