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Wavelength Electronics LD2TC5 LAB User Manual

Laser diode driver & temperature controller with intellitune
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Laser Diode Driver & Temperature Controller
CONTENTS
GENERAL OVERVIEW
SAFETY
QUICK CONNECT GUIDE
PIN DESCRIPTIONS
ELECTRICAL SPECIFICATIONS
THEORY OF OPERATION
INSTRUMENT OVERVIEW
GENERAL OPERATING INSTRUCTIONS
TC OPERATING INSTRUCTIONS
LD OPERATING INSTRUCTIONS
TROUBLESHOOTING
ERROR MESSAGES
ADDITIONAL TECHNICAL NOTES
MECHANICAL SPECIFICATIONS
CABLING SPECIFICATIONS
WARRANTY & CERTIFICATION
Laser Type
Laser Type
Laser Type
B
A
C
USER GUIDE
Laboratory Series
— with IntelliTune
Applies to Product Revision A
ORDERING INFORMATION
2
PART NUMBER
3
LD2TC5 LAB
4
6
LD5TC10 LAB
7
9
LDTC INTLK KIT
9
12
TC/SENSOR
MATING D-SUB
17
WCB407
20
WCB408
23
WCB409
25
WCB319
27
WCB326
28
WCB327
28
THERMISTORS
31
LDMOUNT-5A
e
Pb
RoHS
© October 2019
®
DESCRIPTION
2 A, 10 V Laser Diode Driver
5 A, 15 V Temperature Controller
5 A, 10 V Laser Diode Driver
10 A, 15 V Temperature Controller
One included with each instrument
BNC Terminator 50 Ω
DB15 Male Connector Kit (LD Type A/B)
DB15 Female Connector Kit (LD Type C)
One included with each instrument
TE/RH/Sensor Male DB15+2 Connector Kit
TE/RH/Sensor DB15+2 Cable
LD Type A/B DB15 Cable
LD Type C DB15 Cable
TC to LD Mount Cable
Type A/B Laser to LD Mount Cable
Type C Laser to LD Mount Cable
Various Thermistors Available
Butterfly Laser Diode Mount
R
T
AD590
LM335
RTD

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Summary of Contents for Wavelength Electronics LD2TC5 LAB

  • Page 1 ORDERING INFORMATION GENERAL OVERVIEW PART NUMBER DESCRIPTION SAFETY 2 A, 10 V Laser Diode Driver LD2TC5 LAB 5 A, 15 V Temperature Controller QUICK CONNECT GUIDE 5 A, 10 V Laser Diode Driver PIN DESCRIPTIONS LD5TC10 LAB 10 A, 15 V Temperature Controller...

  • Page 2: General Overview

    GENERAL OVERVIEW ULTRA-STABLE TEMPERATURE FEATURES CONTROLLER & LOW-NOISE COMPLIANCE VOLTAGE LD2TC5 LAB LD5TC10 LAB LASER DRIVER (BOTH MODELS) 10 V The LDTC LAB series instruments combine best-in-class low 10 A 15 V noise, high-end digital control laser diode driver technology •...

  • Page 3: Power Cords

    • The LDTC LAB instrument is intended to be used to control CAUTIONS thermoelectrics, resistive heaters, laser diodes and other similar equipment. Please contact Wavelength Electronics for other The LDTC LAB instrument has no user-serviceable possible applications. parts. Other than the fuses, the LDTC LAB instrument •...

  • Page 4: Quick Connect Guide

    QUICK CONNECT GUIDE CONFIGURE LD INTERLOCKS CONNECT THE POWER 1. For the passive interlock, short Pin 2 and Pin 3 on the On the back panel, insert the female end of the IEC AC power appropriate LD D-SUB on the rear panel (this is already cable into the Power receptacle and then plug the male end into the AC power source.
  • Page 5 ADJUST TEMPERATURE toggle whether the bias voltage for the photodiode is enabled or disabled. SETPOINT 3. Press the blue text next to "PD Range" until the value 1. Press to access the TC Control Screen. matches the appropriate current range for the photodiode. The available options are 500 μA, 5 mA, and 10 mA.

  • Page 6: Pin Descriptions

    PIN DESCRIPTIONS LASER DIODE DRIVER D-SUBS THERMOELECTRIC / RESISTIVE HEATER AND SENSOR D-SUB Figure 8. Female 15+2 D-SUB Figure 5. Female 15-Pin D-SUB for Type A/B laser diodes Table 2. TE OUT/SENSOR D-SUB Pin Description DESCRIPTION Sensor – Sensor + IC Sensor (AD590–...

  • Page 7: Electrical Specifications

    ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS LD2TC5 LD5TC10 UNIT NOTE TEMPERATURE CONTROLLER Maximum Output Current Maximum Compliance Voltage [1] LASER DIODE DRIVER Maximum Output Current Maximum Compliance Voltage [1] LASER DRIVER SPECIFICATIONS LD2TC5 LD5TC10 UNIT NOTE μA Cumulative Noise (RMS) Measured from 1 Hz to 100 kHz nA / √Hz Noise Current Density Output Current Stability...

  • Page 8: Temperature Controller Specifications

    ELECTRICAL SPECIFICATIONS CONTINUED TEMPERATURE CONTROLLER LD2TC5 LD5TC10 UNIT NOTE SPECIFICATIONS OUTPUT Current Limit Range 0 to 5 0 to 10 Short Term Stability [1,2] 0.0009 °C Measured over 1 hour Long Term Stability [1,2] 0.005 °C Measured over 24 hours SENSOR COMPATIBILITY Thermistor Voltage Range 0 to 10...

  • Page 9: Theory Of Operation

    THEORY OF OPERATION INSTRUMENT OVERVIEW The LDTC LAB Series combine a precision temperature WHAT’S IN THE BOX controller and a low-noise laser diode driver in one instrument. The temperature controller delivers bidirectional current to • LDTC LAB: Combination Laser Driver and Temperature Peltier Effect thermoelectric coolers (TEC), or unidirectional Controller Instrument current to resistive heaters (RH)

  • Page 10: Rear Panel Functions

    REAR PANEL SERIAL # FUSE ~F 3.15AH 250 V (5 x 20 mm) EXT MOD CHASSIS LD TYPE A/B TE OUT SENSORS LD TYPE C 100 - 240 V~ ACTIVE LOCK 3.15 A, 50-60 Hz MAX TEC Voltage MAX LDD Voltage MAX TEC Current MAX LDD Current Figure 9.

  • Page 11: Front Panel Functions

    FRONT PANEL LD5 TC1 0 LAB Laser Diode & Temperature Control LDD ENABLE TC ENABLE Figure 10. Front Panel FRONT PANEL FUNCTIONS Table 4. Front panel Functions NAME DESCRIPTION UNLOCK allows laser output current to flow. UNLOCK icon Keylock Switch LOCK disables output current.

  • Page 12: Connect The Power

    GENERAL OPERATING LASER DIODE CONTROL TEST LOAD INSTRUCTIONS We recommend using a test load when first configuring the LDTC LAB instrument. The test load shown in Figure 12 simulates a laser load. Wiring and instrument navigation are followed by instructions NOTE: Type A and B lasers use the top DB15 (female) specific to the temperature control portion of the LDTC LAB, connector, while Type C lasers use the bottom DB15 (male)

  • Page 13: Setting Operating Parameters

    WIRE TEC/RH & LASER POWER ON AND POWER OFF SEQUENCE THERMOELECTRIC COOLER OR RESISTIVE HEATER POWERING ON Wire the thermoelectric cooler (TEC) or resistive heater (RH) Press the Power switch on the back panel to the | position. between Pins A1 and A2 on the 15+2 D-SUB. Default state upon initial power is that the Dual Monitor Screen will be visible on the display and neither Enable button will be The TEC/RH cannot be connected to the laser case.

  • Page 14: Settings Screen

    SETTINGS SCREEN SAVE/RECALL OPERATIONAL PARAMETERS 1. Press to access the Settings Screen. 1. Access the Settings Screen. 2. Press the Display value to cycle through the display and control temperature units available 2. Press to access the Save/Recall Screen. - Celsius (°C), Fahrenheit (°F), Kelvin (K) or 3.
  • Page 15 ENABLE/DISABLE OUTPUT DISABLE CONDITIONS CURRENT If certain operational parameters are exceeded or improperly configured, output current to the LD and/or TC will be disabled. On the front panel, the LDD Enable and TC Enable buttons dictate whether or not output current is enabled. Using the LASer:ENABle:OUTOFF remote command, the instrument can be configured to disable laser current if certain To enable either the LD or the TC current, push the...

  • Page 16: Change Fuses

    UPDATE THE FIRMWARE The firmware can be updated on the instrument using the rear USB connection. 1. On the Wavelength Electronics website, navigate to one of the following download locations: » Either the Temperature Controller or the Laser Driver tab on the Software Downloads page.
  • Page 17 TC OPERATING INSTRUCTIONS SELECT A SENSOR The sensor choice determines the sensor voltage to The LDTC LAB does not support TEC/RH that are temperature relationship and which sensor pins are monitored connected to the laser case. on the 15+2 D-SUB. 1.
  • Page 18 DISPLAY SENSOR CALIBRATION LINEAR VOLTAGE OR CURRENT SENSOR: Press to display the calibration coefficients for that sensor. User-defined sensor calibration Displays the slope and offset. values can be edited remotely. Set up a custom sensor using remote commands. THERMISTOR: Displays the Steinhart-Hart coefficients. Figure 30.
  • Page 19 ADJUST THE SETPOINT INTELLITUNE: INTELLIGENT AUTOTUNE 1. Press to access the TC Control Screen. IntelliTune adjusts the PID coefficients, as well as the voltage 2. Press the Setpoint temperature value and limit. turn the adjustment knob until the desired temperature is displayed. 1.
  • Page 20 INTELLITUNE CONTINUOUSLY LD OPERATING INSTRUCTIONS OPTIMIZES Once a system is run through the IntelliTune process, the PID ACCESS THE LD SCREENS coefficents are adjusted as the setpoint, tune mode, or bias current is changed. The IntelliTune setpoint does not need Ensure that the instrument is on the LD Screens to match the system setpoint if the system setpoint is very by pressing the LD Screen button if the LD...

  • Page 21: Constant Power Mode

    CHOOSE OPERATION MODE, CONSTANT POWER MODE SETPOINT & LASER TYPE In Constant Power mode, the setpoint chosen corresponds to actual current through the photodiode (proportional to output 1. Press to access the LD Control Screen. power). This mode requires the user to configure additional 2.

  • Page 22: Additional Capabilities

    MONITOR D-SUB, Pin 10 (positive) and Pin 12 (ground) while using the resistor test MODEL NUMBER TRANSFER FUNCTION load. LD2TC5 LAB 0.4 A / V LD5TC10 LAB 1 A / V CAUTION: Connect the oscilloscope across Table 6.

  • Page 23: Troubleshooting

    TROUBLESHOOTING PROBLEM POTENTIAL CAUSES SOLUTIONS The output disabled due to an interlock. appropriate interlock follow Check error messages on screen or with instructions on Error Messages Page. ERR? query If the TC output also disabled, resolve the source of that error. If LDD output The LDD output switched off unexpectedly was remotely linked to the TC status, TC failure detected.
  • Page 24 PROBLEM POTENTIAL CAUSES SOLUTIONS Set the temperature at least 10°C above ambient when using a resistive heater. A resistive heater is unable to precisely maintain temperatures near ambient because once the temperature overshoots the setpoint, the controller turns off Setpoint temperature is set too close to the and relies on ambient temperature to cool the Using a resistive heater, temperature ambient temperature.

  • Page 25: Error Messages

    ERROR MESSAGES ERROR POTENTIAL CAUSES SOLUTION Ensure the key switch is in the unlocked Key switch not properly configured. Laser output disabled due to key switch position for output current to flow. Either the provided BNC terminator, or a No connection made at the rear panel user interlock connection must be made Laser output disabled due to BNC interlock ACTIVE LOCK.
  • Page 26 ERROR POTENTIAL CAUSES SOLUTION Unlink the Laser output from the TC (See LD output is linked to TEC output state or Laser disabled due to TEC output state. LASer:ENABle:OUTOFF) or enable TC TC current is not enabled current. Laser disabled due to shorted TEC. Unlink the Laser output from TC (see TEC load connection is either open or LASer:ENABle:OUTOFF) or see TEC load...

  • Page 27: Additional Technical Notes

    ADDITIONAL TECHNICAL NOTES INDEPENDENT/LINKED OPERATION The LDTC LAB can operate with the LD and TC sides This section includes useful technical information on these independent of one another, or tied. If tied operation is topics: chosen, the user can choose which TC errors will trigger a LD output current disable using the Laser Enable Output Off register (use remote command LASer:ENABle:OUTOFF).

  • Page 28: Mechanical Specifications

    MECHANICAL SPECIFICATIONS 16.35 [415.3] 8.86 [225.0] 17.75 [450.9] 0.80 8.86 0.60 16.35 [20.3] [225.0] [15.2] [415.3] 3.47 3.47 3.91 3.91 [88.1] [88.1] [99.3] [99.3] [152.4] Dimensions in inches [mm] ±5% CABLING SPECIFICATIONS WCB407: TE/RH/SENSOR DB15+2 CABLE (NOT INCLUDED)
  • Page 29 WCB408: LD TYPE A/B DB15 CABLE (NOT INCLUDED) WCB409: LD TYPE C DB15 CABLE (NOT INCLUDED)
  • Page 30 WCB319: TC TO LDMOUNT (NOT INCLUDED) WCB326: TYPE A/B LASER TO LDMOUNT (NOT INCLUDED) WCB 327: TYPE C LASER TO LDMOUNT (NOT INCLUDED)

  • Page 31: Warranty & Certification

    Document Number: LD2TC5-LA400 written consent of Wavelength. REVISION DATE NOTES SAFETY September 2019 Initial Release There are no user-serviceable parts inside this product. Return the product to Wavelength Electronics for service and repair to ensure that safety features are maintained.

This manual is also suitable for:

Ldtc lab seriesLd5tc10 lab

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