THORLABS DC3100 Series, Operation Manual

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5 Maintenance and Repair
DC3100 33
Figure 34 Error Message
The following table summarizes possible errors:
Error Explanation and Impact Elimination
Clipped to
Limit Error The current of the LED was
reduced to the set current limit.
This
can happen in the
'External Control Mode', when
a voltage was applied to the
external trigger input at the rear
side representing a current,
which is higher than the limit.
Decrease the input voltage.
Over
Temperature
Error The temperature within the
DC3100 case reached the
maximum limit and the LED is
switched off. Make sure that the ventilation
slots are not covered. It is
necessary to ensure an air
ventilation through the DC3100
unit.
Software
Installation
failed The software cannot be
installed on the computer. Be sure to have
administrative rights on your
computer, which enables you
to install software at all. Ask
your system administrator to
give you such rights or to do
the installation himself. See
Installation for details.
LED cannot
be switched
on After pressing the LED button
the LED does not emit light. Check if the LED current is set
to a value larger than 0mA.
One of the three operation
Modes has to be selected
before you can switch on the
LEDs.