Troubleshooting
The Stanwax Laser ILDA interface board has proved very reliable in laser projectors all over the world but occasionally problems may occur.
Below is listed a few basic things to look for if the board will not work.
Power LED lights but Bi-colour LED is out
This indicates that the projector interlock loop is open or the E-stop control pin is not grounded. Both of these conditions must be met or the LED
will not light.
Bi-colour LED lights green but the projector will not output
The Bi-LED lighting green shows the projector is ‘ready’ to start, this function must be provided. The start button should be a momentary push to
make spst switch and must be connected between pins 1 & 8 of the remote interlock connector
The Bi-colour LED lights red but the lasers are not outputting
Check that the ‘Shutter closed’ LED on the PCB is not lit. I flit it indicates that the Solid State Shutter is closed and the lasers will be
disconnected from the modulation signals. Ensure laser output is enabled in the software.
The emission LED will not light
The connection for this LED is marked for polarity, ensure that it is wired the right way round. Any standard 2-3V LED will function on this
connection and no series resistor is required.
Specification
Dimensions
– 85mm x 50mm (the board add 15mm depth to the back of the FB4)
Power
– 12-24V DC
Current
– 40mA
Start up delay
– 7seconds (factory default) or user programmable 0-60 seconds
Interlock Voltage
– 12V with series resistor for short circuit protection
Solid state shutter
- <100uS to laser extinguish (dependant on modulation speed of laser driver)
reaction time
© 2016 Stanwax Laser
As you can see the connector for projector 1 has the e-stop and start button contacts as well as the laser status Bi-Coloured
LED connected to it, the others need only have pins 1, 4 and 8 from the 9 pin connector linked between projectors. Also note
that connecting via the interlock loops the e-stop function is independent of the ILDA inputs so it does not matter if the
projectors are running of one laser controller or several, the e-stop and start function will still work.
Service Plug
If you wish to make a service plug to automatically start the projector for bench testing
purposes you can wire a 9pin DB 9 connector as shown in the diagram.
Alternatively we can supply such a plug complete with a Bi-colour LED for a small charge.
Please contact us for details using [email protected]
Using XLR leads for e-stop
As the stop system here uses just 3 pins we recommend connecting the projectors and the
e-stop using industry standard XLR leads. This makes hook-up relatively cheap and often
the run from stage to FOH can be done using a spare in house patch. We have used this
system extensively for a number of years so can verify that it is robust.
The system we employ on our own projectors, uses adaptors that connect to the 9 pin Sub-d
remote interlock connection, and we have one lead with a 5 pin XLR that runs to the e-stop,
but use 3 pin links between the projectors. If you don’t wish to have the Bi-coloured Status
LED on your stop then you can use 3 pin leads throughout, including 3 pin male and female
sockets on the projector if you have the space on the rear panel.
We recommend having a female on the e-stop (we supply modified e-stops already wired
with 5 pin XLR connections) so that the male XLR is always facing towards the e-stop. If you
employ this and the wiring standard shown right then connecting with other projectors owned
by other people and employing this system will always be a possibility.
XLR Pin Assignments
1 – Ground
2 – Stop
3 – Start
Optional connections to E-stop only
4 – Bi-LED
5 – Bi-LED (flat)
