To Next PageTo Next PageWhy does Newport LDC-3706 Controller output go off intermittently?
If the Newport Controller output goes off intermittently, first check the interlock circuit, as an intermittent interlock can turn the output off. Also, ensure that the AC power cord connection is secure. Power-line drop-outs may reset the unit, and the output will be off when power is restored.
Why is Newport LDC-3706 responding slowly to remote commands?
To resolve slow or unexpected responses to remote commands on the Newport Controller, verify that no two devices are set to the same GPIB address and ensure there are fewer than 15 devices on the bus. Check the configuration of the GPIB controller card or COM port, paying attention to the terminating character. Confirm that the total GPIB cable length is less than 20 meters (65 feet). To isolate the issue, remove all other instruments from the bus. If this resolves the problem, reconnect them one at a time to identify any conflicts or improper GPIB function.
What to do if Newport Controller powers on, but no current output?
If the Newport Controller powers on but there is no current output, check the interlock pins on the LASER input connector on the rear panel. These pins must be shorted either directly or through a switch. If an “Open Circuit Error” is displayed, check the load connections and try again. Also, verify that the OUTPUT ON switch is activated, and the corresponding LED should be lit.
What to do if output current at limit, cannot be lowered on Newport Controller?
If the Newport Controller's output current is at its limit and cannot be lowered: * If in POWER mode, check the monitor diode (feedback) connections and try reversing the polarity of the monitor photodiode. Also, check the photodiode bias adjustment in the LASER (PARAMETER) menu. * If in constant current mode, check the current set point and current limit setting. If the set point is much greater than the desired limit setting, several turns of the adjust knob may be required to lower the output below the limit.
What to do if Newport LDC-3706 is not being recognized by USB?
If the Newport Controller is not being recognized by USB, verify the USB cable connection between the controller and the computer. Also, make sure that the correct drivers are installed.
How to troubleshoot if Newport LDC-3706 does not power up?
If the Newport Controller does not power up, ensure the power cord is securely connected and test the wall outlet with a known working device. Check the voltage selector on the rear panel to match your region's power supply; incorrect settings can damage the instrument. Note that there are no user-serviceable fuses, but internal fuses exist. If problems persist, contact customer support at ILX Lightwave.
What to do if Open circuit error E503 or Voltage Limit error E505 prevents output from reaching desired value on Newport LDC-3706?
The LDC-3706 has an adjustable laser compliance voltage. If the Newport Controller displays an open circuit error E503 or voltage limit error E505, preventing the output from reaching the desired value, check if the LASER voltage limit setting is too low. Also, check the laser connections.
What to do if Newport LDC-3706 Controller reads “Internal Communication Error”?
If the Newport Controller displays “Internal Communication Error”, the instrument must be returned to ILX Lightwave.
General| Brand | Newport |
|---|---|
| Model | LDC-3706 Series |
| Category | Controller |
| Language | English |
