Application Note: LDP-V xx-100 with the PLCS-21 and PLB-21

Associated products:
LDP-V 03-100,
LDP-V 50-100,
LDP-V 80-100, LDP-V 240-100, PLCS-21, PLB-21, LDP-V Kit This application note briefly describes how to connect a PLB-21 to various laser diode drivers of the LPD-V series via the PLCS-21.

  • The PLCS-21 acts as a function generator and a RS-232 translator.
  • The PLB-21 is a human interface that allows an easy evaluation and testing, you can easily modify operation parameters of your laser diode.

The PLB-21 cannot be connected directly to the LDP-V driver.

What to do?

Picture


Unpack your driver.


Connect the monitor cable to the power monitor SMC socket of your driver. Connect the current monitor cable to the current monitor SMC socket on your driver. Cables are part of the LDP-V Kit. Refer to the scope scaling printed beneath the socket or stated in the datasheet.


Plug the PLCS-21 onto the top of the LPD-V driver and fix it with three M3 screws (delivered with the PLCS-21).


Connect the leads of the power supply unit to the PLCS-21. You may take the wall plug converter that is part of the LDP-V Kit for powering the device.


Controlling

Option 1:

Connect the PLCS-21 to a PC using a USB cable. Please refer to the PLCS-21 manual for the terminal settings. The LDP-V is powered through the PLCS-21.


Option 2:

Connect the PLCS-21 to the PLB-21. The LDP-V driver and the PLB-21 are then supplied with power by the PLCS-21.


Important note

Never connect both, USB and PLB-21, at the same time. In this case the PLB-21 would be electronically disconnected and state that it is “waiting for a device”.


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