6300 Series ComboSource User’s Manual · Page 29
While in remote mode, the Remote LED also acts as an activity indicator, and
will flash whenever there is communication with the computer.
Details on how to communicate with the ComboSource can be found in the
Computer Interfacing Manual which is included on the CD that accompanied
this product.
Installing the USB Drivers
Using the ComboSource via USB is just as simple as using the serial port. In
fact, once you have installed the USB drivers, the instrument will appear as a
virtual serial port that you can use just like a normal serial port.
To install the drivers, simply plug in the instrument to your computer. When the
Add New Hardware wizard appears, insert the CD you received with the
ComboSource and follow the on-screen instructions.
Once the drivers are installed, to determine the COM port number, go to Control
Panel and select System. Once the System Properties dialog appears, choose
the Hardware tab then click on the Device Manager button. When the Device
Manager appears, click on the plus sign to the left of Ports. The port identified
as a USB Serial Port is the ComboSource. In the event you have multiple
Arroyo Instruments products plugged in simultaneously, you will need to
experiment to see which instrument was assigned to which port. For example,
you could send a *IDN? query and see which instrument goes into remote
mode.
Thermal Considerations
The ComboSource is designed to provide high power in a small enclosure.
Both the laser and TEC sections of the ComboSource can be thermally
overloaded if operated at high currents with a low voltage, and each section
handles the thermal overload condition differently.
For the TEC section, the ComboSource will automatically protect itself by
lowering the TEC current until it is no longer in an overload condition. While this
may lower the deliverable power to your TEC, it will prevent any damage to the
ComboSource. One exception to this is if you are operating in ITE (or constant
current) mode. In this morn, because you are specifying a specific drive current
for the TEC, if there is a thermal overload condition, the output will be turned off
and an E-438 error message will be generated.
For the laser section, the driver will always respond by turning the output off and
generating an E-537 error message in an overload condition. A possible fix to
this condition is lowering the Vf Limit setting in the menu (in the Laser Menu) to
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