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PASS

Complete Help Docs - https://wiki.pangolin.com/

should be connected to the CYAN input on a PCAOM driver or directly to a laser diode driver.

Note that for the color signals above, ideally, any Laser Diode Driver should have diﬀerential input, and
you should connect both the + and – color signals from the PASS board directly to those drivers.

Pins 21 and 22 correspond to the Z+ and Z – signals respectively. In most cases, laser projectors
do not use these signals directly and in fact, when used with certain pieces of Pangolin software,
these signals correspond to a Safety Coordinate System. It is recommended that these be left
unconnected.
Pin 23 is connected to the ILDA input connector pin 12. This signal is reserved by ILDA for a light
sensor output, but it is essentially unused by all manufacturers. It is recommended that this pin be
left unconnected.
Pin 24 is connected to the ground connection of PASS. It is recommended that this only be used as
a ground reference for the shutter driver, and nothing else.
Pin 25 is the main Shutter output. Under normal circumstances the state of this signal will
correspond directly to pin 13 on an ILDA input connector. However, in the event of a major fault,
PASS will forcibly close the shutter using this signal. It is therefore MANDATORY that this be
connected to a shutter driver. For maximum safety, the shutter should be a fast type of shutter,
and one that also will fail-safe. This means that in the event of a mechanical or electrical failure of
the shutter, it will remain closed due to the mechanical design of the shutter. Pangolin highly
recommends shutters manufactured by the company called nm Laser Products
(

http://www.nmlaser.com

J803: Scanner Position and Light Detector Inputs

Pin 1 pr5V output, which should only be connected to the PASS light sensor.
Pin 2 is the PASS light sensor input, which ranges from 0V to +5V.
Pin 3 and Pin 5 correspond to the Signal Ground connection of PASS. Pin 3 should be connected
to the PASS light sensor. Pin 5 may or may not be connected to the scanner ampliﬁer, depending
on circumstances described below.
Pin 4 corresponds to the X Position Signal. This should be connected to the X-axis scanner
ampliﬁer.
Pin 6 corresponds to the Y Position Signal. This should be connected to the Y-axis scanner
ampliﬁer.

J804: Control Panel Signals

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5
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7
8
9
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Содержание PASS

Страница 1: ...FE LASER EXPOSURE This manual contains important information on how to install PASS in a laser projector how to perform adjustments and how to make sure that the show remains safe including a requirem...

Страница 2: ...levels of redundancy and with circuitry that is designed to fail safe In fact PASS is designed to maintain safety even in the face of several simultaneous failures Although the PASS hardware circuit...

Страница 3: ...intensity outputs PASS will also open the projector interlock signal path ILDA pins 4 and 17 As long as a fast shutter is located within the beam path and as long as the interlock signal path is used...

Страница 4: ...Monitor The Beam Power Monitor is perhaps the most unique and important aspect of PASS The Beam Power Monitor is able to make sure that the light coming out of the projector conforms to what is expec...

Страница 5: ...the PASS logic the color and intensity signals are blanked the shutter is closed and the projector interlock signal path is opened The system will remain in that state until power is recycled or until...

Страница 6: ...CAOM for color Pins 7 and 8 correspond to the Projector Interlock loop pins 4 and 17 from the ILDA connector Note that PASS will interrupt this interlock signal loop in the event of a critical fault a...

Страница 7: ...normal circumstances the state of this signal will correspond directly to pin 13 on an ILDA input connector However in the event of a major fault PASS will forcibly close the shutter using this signal...

Страница 8: ...an external Emergency Stop ESTOP switch such as a pushbutton or red mushroom type switch When this pin is connected to Pin 2 ground ESTOP is activated When Pin 1 is left oating then ESTOP is inactive...

Страница 9: ...or not PASS is ready to be activated armed If this signal is HIGH it indicates that the power supply is OK ESTOP is not activated and light is not detected and thus PASS may be activated by performin...

Страница 10: ...r light detector failure Note that unlike the other LED outputs on the control panel connector the Status LED outputs will latch in the event that a fault is detected They will remain in the latched s...

Страница 11: ...y additional ground wire from each scanner ampli er to the PASS board Doing so would introduce a ground loop which may cause distorted images If you are using a one dual axis scanner ampli er the reco...

Страница 12: ...is moved to the left on the Horizon control is monitored and PASS will only allow static or slow beams above the horizon If there is a slow moving or non moving beam below the horizon it will be exti...

Страница 13: ...red to sweep in X and or Y in order to be considered to be safe At the factory Pangolin sets this to around 5 radians per second Note that the scale of this control in radians per second depends on th...

Страница 14: ...i color LED on the PASS board Also note that the Maximum Safe Beam Power and Minimum Power adjustments are ignored if the switch 4 is turned on see switches on page 20 PASS Adjustment Procedure NOTE T...

Страница 15: ...hen it is in the audience area Once this is done with the slow moving circle COLLAPSE the Y axis change Y size to zero in the software which will project essentially a slow moving horizontal beam cent...

Страница 16: ...terms of Watts Per Square Centimeter also known as irradiance instead of Watts also known as radiant power This is an important concept that must be understood The laser safety standards are based on...

Страница 17: ...til it trips We also recommend that you run a number of test patterns and show program material with the brightness set to the maximum safe power determined above i e 27 If the projector occasionally...

Страница 18: ...e is not overloaded with light and merely delivering a saturated maximum voltage to the oscilloscope as this will arti cially lengthen the pulse width The PDA100A photodiode has an attenuator dial on...

Страница 19: ...as the nal shutter opens faster than around 1 20th of a second Generally the light sensor is fashioned as a glass window that is used to sample the outgoing laser beam at a 45 degree or so angle and d...

Страница 20: ...with the spectral attening lter attached and logarithmic ampli er board is the model SEL033 detector with model F at response ler and model A430 ampli er all available from International Light Techno...

Страница 21: ...g with the other projector features for example no doubt including a lens installed either inside or outside the laser projector to increase divergence to help ensure audience safety Finally the audie...

Страница 22: ...stments on PASS must be con gured properly for the scanning velocity and dwell time as well as the projection horizon if used Moreover the light sensor related adjustments on PASS must be con gured to...

Страница 23: ...2022 07 28 09 15 23 26 PASS Complete Help Docs https wiki pangolin com Dimensions and mounting holes...

Страница 24: ...m PASS This Agreement provides you with the authorization to use PASS subject to the terms and conditions herein If you do not agree to all the terms and conditions of this Agreement do not use PASS I...

Страница 25: ...Pangolin without Pangolin s prior written consent AGREEMENT LENGTH AND TERMINATION PROCEDURE This Agreement is e ective until terminated 4 You may terminate this Agreement at any time by sending writt...

Страница 26: ...owing deposit with the mail carrier for all other allowable forms of notice ENTIRE AGREEMENT This Agreement constitutes the entire agreement with respect to the use of 11 PASS and supersedes all prior...

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