Maiman Electronics LLC
SF8300
23
24.
Troubleshooting guide
Problem
Potential causes
Solution
Driver doesn’t turn on
– OR –
There is no output
The device is in the
locked state
The driver and the temperature controller
can only be turned on with shorted
Interlock.
For more details see paragraph 18.1.
The device will not work if thermistor is
unplugged. This situation may occur if you
connect dummy load without thermistor.
For more details see paragraph 18.2.
Incorrect pinout of the
laser diode
Check if the laser diode pinout is match to
driver model. For more details see
paragraph 15.
Onboard switch were set
to ON before power up
the device
Please power up the device with switches
OFF and unconnected pins 2, 3 of analog
control connector.
For more details see paragraphs 18.6 and
18.7.
An error is triggered
when the driver is
turned on
The current protection
threshold is too low
Change the current protection threshold
of the driver. For more details see
paragraph 18.4.
The driver is turned on at
high current with a
driver short installed
When the driver is turned on at high
current with a driver short installed, a
current surge may occur. Due to this surge
the protection is triggered.
Use the driver short jumper to configure
driver with required values. Remove this
jumper before turning on the driver.