MAIMAN ELECTRONICS SF6040 Manuale d'uso - Pagina 12

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Maiman Electronics

14. How to get started

1. Unpack your driver;

2. Connect a dummy load (e.g. a Schottky diode) to the LD- and LD+ terminals. Please note

polarity;

3. Connect the controls (analogue and/or digital);

4. Connect the power supply. Please note polarity;

5. Rotate the current limit potentiometer clockwise several times;

6. Turn on the power supply;

7. Set the current equal to the desired current limit threshold;

8. Enable the driver;

9. Rotate the potentiometer counterclockwise slowly while the crowbar status pin becomes high;

10. Restart the power supply to reset protection;

11. Make sure the over-current protection limit is set right;

12. Make sure that all controls are working;

13. Turn off the power supply and disconnect a dummy load;

14. Connect the laser diode to the LD- and LD+ terminals. Please note polarity.

15. Cooling

The driver produces up to 15W of losses. Thus the base plate has to be mounted on a

thermal conduction surface to ensure proper operation and prevent an over-temperature

shutdown. If the conduction cooling is not enough an additional cooling may be achieved by

placing the driver into the airflow of a fan.

16. Internal protections

Several security features protect the laser diode and driver from damage. Reverse diode

protects the laser diode from reverse currents. In case of an over-current or an over temperature

condition, the control logic disables the driver and the output shorts by a crowbar clamp. A soft-

start mechanism slowly raises the current at startup to protect the laser diode against current

overshooting.

17. Software

We offer own software to control driver. You can find it at maimanelectronics.com in the

downloads section of the product page. Or contact us at [email protected].

18. Digital control description

When the input voltage applied the driver is always in "analogue current set, external enable and

allowing interlock" state. Any other state should be set any time after powering the driver if needed.

Default serial port settings:

Baud rate

Data bits

115200

Stop bits

Parity

none

SF6040

Flow control

none