opto engineering LT2PR Series User manual

USER MANUAL
LT2PR Series
LED pattern projectors
v1.1 - eng LIGHTING

Contents
1 GENERAL INFORMATION 4
1.1 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Forbidden use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.3 Revisions ......................................... 5
1.4 Ordering code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 WARRANTY AND CERTIFICATIONS 7
2.1 Warranty ......................................... 7
2.2 CE Declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 FCC Declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 RoHS, REACH and WEEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5 Product EoL (end-of-life) handling . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 INTRODUCTION 9
3.1 Manual and conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Product identification data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Storage and use conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3.1 Storage conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3.2 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.4 Photobiological safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 Cleaning and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 GETTING STARTED 15
4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Product installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Pattern and stop replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.4 Lens installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.5 Spacer adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2

5 TECHNICAL SPECIFICATIONS 22
5.1 Hardware dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2 LEDcolor ......................................... 24
5.3 Connectors and pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.4 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.5 Electrical protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.6 Thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.7 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.7.1 Continuous mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.7.2 Strobe mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.7.3 Signal timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.8 Status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.9 I/O circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.9.1 NPN input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.9.2 PNP input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.9.3 Analog dimming input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

LT2PR | USER MANUAL
1 GENERAL INFORMATION
1.1 Disclaimer
Always use and store Opto Engineering®products in the prescribed conditions in order to ensure
their proper operation: failing to comply with the prescribed conditions may shorten the product
lifetime and/or result in malfunctioning, performance degradation or failure.
Be aware that incorrect operation of this equipment may cause dangerous situations or significant
financial losses. It is essential that the users ensure that the operation of the product is suitable
for their applications.
All trademarks mentioned herein belong to their respective owners.
Except where prohibited by law:
•All hardware, software and documentation are provided on an "as is" basis.
•Opto Engineering®accepts no liability for consequential loss, of any kind.
Upon receiving your Opto Engineering®product, visually examine it for any damage that could be
occurred during shipping. If the product is damaged upon receipt, please notify Opto Engineering®
immediately.
1.2 Forbidden use
Please read the following notes before using this product.
Contact your distributor or dealer for any doubts or further advice.
•Do not disassemble, modify or repair the product yourself. It may cause permanent malfunc-
tioning, fire hazard or electric shock, possibly resulting in serious injury;
•Do not place the product in dusty, humid or hot places or near flames. These conditions may
cause malfunctioning and damage, fire or electric shock, possibly resulting in serious injury;
•Do not spray or apply pesticides or other volatile chemicals on or in the proximity the product;
•This device must not be used in applications where its failure could pose a safety hazard or
damage to other equipment. Keep in mind that if the device is used in a manner not foreseen by
the manufacturer, the protection provided by its circuits and by its enclosure may be impaired;
•This is a low voltage device. As such, the voltage between any combination of applied signals
must not exceed the supply voltage at any time;
•Higher voltages may cause a fault and could pose a safety hazard;
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•This device has limited protection against transients caused by inductive loads. If necessary, use
external protection devices like fast diodes or other specific transient protectors;
•Do not allow foreign objects to enter the unit or drop into holes, terminals and other openings
or gaps. This may cause fire or electric shock, possibly resulting in serious injury;
•Disconnect the power cable before moving the product. Failure to comply with this precaution
may damage the power cable or cause fire or electric shock, possibly resulting in serious injury;
•Do not scratch, cut, open or twist the power cables. It may cause malfunctioning, fire or electric
shock, possibly resulting in serious injury;
•If the power cable is damaged or cracked, please contact our technical support and do not use
the product. Damaged cables may cause malfunctioning, fire or electric shock, possibly resulting
in serious injury;
•Do not insert or remove the plug of the power cable with wet hands. It may cause electric shock,
possibly resulting in serious injury;
•Do not use the product in presence of flammable gas. It may cause outbreaks and flames, pos-
sibly resulting in serious injury;
•If you notice any abnormality such as smell, smoke or overheating, turn off the power and dis-
connect the power cables. Continuing to use the product in these conditions may cause fire or
electric shock, possibly resulting in serious injury;
•If you have dropped the product or damaged the product case, turn off the power and disconnect
the power cables. Continuing to use the product in these conditions may cause fire or electric
shock, possibly resulting in serious injury.
1.3 Revisions
In Table 1are listed all the user manual revisions.
In the column Description are listed all the relevant differences between different revisions.
Rev. Date Description
1.0 22/09/2023 First manual release
1.1 18/12/2023 Added absolute maximum ratings
Table 1: Manual revisions
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1.4 Ordering code
The product part number is composed as follows:
LT2PRZZ-X-Y
The ordering code is explained in Table 2.
Code Description Options Value
ZZ Power XP ~40W pulsed / ~20W continuous
UP ~90W pulsed / ~45W continuous
X LED color W white, 5700 K
CG Conversion green (only for UP version)
UV405 UV, 405 nm
B blue, 465 nm
G green, 525 nm
R red, 625 nm
IR850 IR, 850 nm
-Y Variant none Standard
-C Compact version (no integrated driver,
only for XP version)
Table 2: Ordering code
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2 WARRANTY AND CERTIFICATIONS
2.1 Warranty
The device warranty is 12 months from the effective delivery date with reference to the device
serial number.
Warranty covers the replacement or the repair of the defective part (components, device or part
of it) with the exclusion of dismantling and shipping costs.
The replacement of one or more components does not renew the warranty period of the entire
device.
The electronics and parts subjected to normal use or deterioration due to atmospheric agents
and external environment are excluded from the warranty. Also, all failure caused by the lack
of, insufficient or incorrect maintenance performed by unskilled or unauthorized personnel or
due to unintended use or unauthorized replacements, alterations or repairs is excluded from the
warranty.
The general validity of the warranty depends on:
•Maintenance being performed correctly as described in the device manual;
•The intended use of the device as specified in this manual.
2.2 CE Declaration
The LT2PR family is conformal to the EMC directive 2014/30/EU and therefore comply with the
following standards:
Standard Date of issue Description
EN 61326-1 2013 Electrical equipment for measurement, control and
laboratory use - EMC requirements
EN 62471 2008 Photobiological safety of lamps and lamp systems
2.3 FCC Declaration
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful inter-
ference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
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LT2PR | USER MANUAL
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver
isconnected.
•Consult the dealer or an experienced radio/TV technician for help.
2.4 RoHS, REACH and WEEE
LT2PR products are conformal to the following directives and standards:
•RoHS 2011/65/EU
•REACH 1907/2006/EC
•WEEE 2012/19/EU
2.5 Product EoL (end-of-life) handling
Observe the following guidelines when recycling this equipment or its components. Production of
this equipment required the extraction and use of natural resources. The equipment may contain
substances that could be harmful to the environment or human health if improperly handled at
the product’s end of life. In order to avoid release of such substances into the environment and to
reduce the use of natural resources, we encourage you to recycle this product in an appropriate
system that will ensure that most of the materials are reused or recycled appropriately.
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LT2PR | USER MANUAL
3 INTRODUCTION
3.1 Manual and conventions
Opto Engineering®SpA, with its registered office in Strada Circonvallazione Sud 15, 46100 Mantova
(Mn) - Italy, hereinafter the manufacturer, provides all the necessary information in this installa-
tion, use and maintenance manual in a clear and simple way to install, use and service the LT2PR
products.
The recipients of this manual are all those who have the knowledge, experience and capability of
understanding the standards, prescriptions and safety measures indicated in this manual. Such
people will be later identified as qualified personnel who are authorized to transport, install, use
and service the products described in this manual.
This material can only be used by the customer whom this manual has been delivered to, in order
to install, use and service the product.
The manufacturer will retain the right to modify or improve the manual and/or the product re-
ferred to in this manual without any prior notice.
The following typographical conventions are used in this document:
NOTE: notes contain important information. Highlighted outside the text to whom they refer
CAUTION: these indications highlight procedures that, if not observed in their
entirety or in part, can cause damage to the machine or to the appliances
HAZARD: these indications highlight procedures that, if not observed in their
entirety or in part, can cause injuries or affect the health of the operator
3.2 Product identification data
LT2PR LED projectors are identified with a label placed on the lateral side of the packaging box and
on the back side of the cable tag, attached to the product.
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This label is used to identify the part number and serial number of the product and contain some
basic information on power consumption and current draw. A box label example is shown in Fig-
ure 1. A cable tag label example is shown in Figure 2.
Figure 1: Example of box label.
Figure 2: Example of cable tag label.
3.3 Storage and use conditions
3.3.1 Storage conditions
Storage environment between -10°C and 60°C.
Avoid thermal shock by not exposing the product to sudden changes in temperature.
Store the product in a dry place: storage environment with relative humidity (RH) less than 80%
(no condensation).
3.3.2 Operating conditions
Extreme temperatures affect the product functionality, compromising LED irradinace and lifetime.
Avoid any thermal shock and exposure of the product to sudden changes in temperature.
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The product includes high power LEDs: it’s very important to dissipate an appropriate amount of
heat (if necessary, operate the device with a forced air cooling system).
Environment specifications Values
Operating temperature 0-40 ◦C
Storage temperature 0-50 ◦C
Operating temperature humidity 20-85%, non condensing
Installation Indoor use only
IP rating IP30
Table 4: Environment operating specifications.
In general, avoid to store and use the product in the following environments:
•Environments with strong electric/magnetic fields.
•Places exposed to direct sunlight, rain or snow.
•Environments exposed to particular gas and dangerous substances.
•Extremely vibrating systems.
•Dusty places.
•Extremely humid places.
•Excessive hot/cold environments.
On the outer surface of the device you will find the following label to indicate the presence of hot
surfaces:
Figure 3: Hot surface label located on the outer surface of the device
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LT2PR | USER MANUAL
HAZARD: The entire outer surface of the product can reach high temperatures
due to internal power dissipation. Do not handle with bare hands when oper-
ating and wait for a sufficient amount of time after shutdown before handling
the product.
CAUTION: Product case temperatures can highly differ in case of poor heat
dissipation. The product implements a thermal shutdown protection in order
to avoid excessive damage to the internal electronics.
CAUTION: If used outside of the specified temperature range, the expected life
of the product might consistently decrease. Opto Engineering®will not be re-
sponsible for product life reduction due to excessive thermal stress.
3.4 Photobiological safety
LT2PR series has been tested against EN 62471:2008 (photobiological safety of lamps and lamp
system). The norm classifies LED lightings in 4 distinct groups, according to their hazardousness
degree. For LT2PR series, the risk group is reported in Table 5.
HAZARD: Never look directly at the source with your eyes. Despite infrared
light is invisible to the eyes, eye damage may occur. To know if the illuminator
is ON, please refer to led indicator (Section 5.8). In all cases, Opto Engineering
recommends the use of protection glasses.
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LT2PR | USER MANUAL
Part number Risk
Group
Risk phrase
LT2PRXP-W 2 CAUTION. Possibly hazardous optical radia-
tion emitted from this product. Do not stare
at operating lamp. May be harmful to the
eye.
LT2PRXP-UV405 3 WARNING. UV emitted from this product.
Avoid eye and skin exposure to unshielded
products.
LT2PRXP-B 3 WARNING. UV emitted from this product.
Avoid eye and skin exposure to unshielded
products.
LT2PRXP-G 1
LT2PRXP-R 1
LT2PRXP-IR850 2 CAUTION. IR emitted from this product. Do
not stare at operating lamp.
LT2PRXP-W-C 1
LT2PRXP-UV405-C 3 WARNING. UV emitted from this product.
Avoid eye and skin exposure to unshielded
products.
LT2PRXP-B-C 2 CAUTION. Possibly hazardous optical radia-
tion emitted from this product. Do not stare
at operating lamp. May be harmful to the
eye.
LT2PRXP-G-C 1
LT2PRXP-R-C Exempt
LT2PRXP-IR850-C 1 NOTICE. IR emitted from this product. Use
appropriate shielding or eye protection.
LT2PRUP-W 3 WARNING. UV emitted from this product.
Avoid eye and skin exposure to unshielded
products.
LT2PRUP-UV405 3 WARNING. UV emitted from this product.
Avoid eye and skin exposure to unshielded
products.
LT2PRUP-B 3 WARNING. UV emitted from this product.
Avoid eye and skin exposure to unshielded
products.
LT2PRUP-G 1
LT2PRUP-CG 1
LT2PRUP-R 1
LT2PRUP-IR850 3 WARNING. IR emitted from this product. Do
not look at operating lamp.
Table 5: LT2PR EN62471 risk group.
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LT2PR | USER MANUAL
3.5 Cleaning and maintenance
When cleaning the product, please remember:
•To avoid disassembling the product.
•To avoid liquids or inappropriate cleaning chemicals like benzene, alcohol, spray-like clean-
ers.
•To use an appropriate soft cloth or soft brush.
The lens of the product can be cleaned using compressed air or a cotton swab soaked with iso-
propyl alcohol or acetone.
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LT2PR | USER MANUAL
4 GETTING STARTED
4.1 Overview
LT2PR products are LED pattern projectors with on-board controller1.
L2PR pattern projector are designed to operate in both continuous and pulsed mode with an easy
hardware interface. LT2PR pattern projector can operate with mostly of the C-mount lenses avail-
able on the market.
4.2 Product installation
The pattern projector is provided with two M3 threaded holes on each side, allowing for flexible
and robust mounting. It is recommended to mount the pattern projector to a metal object using
a metal bracket in order to facilitate the heat dissipation. Before installing the product make sure
to align it correctly, as requested by your application.
Room should be provided to ensure a good cables setting on the back of the pattern projector as
well as free air flux in order to dissipate the generated heat.
Figure 4: Schematic drawing of LT2PRXP device with the M3 threaded holes highlighted.
1Does not apply to -C versions.
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LT2PR | USER MANUAL
Figure 5: Schematic drawing of LT2PRUP device with the M3 threaded holes highlighted.
Figure 6: Schematic drawing of the -C variant device with the M3 threaded holes highlighted.
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LT2PR | USER MANUAL
4.3 Pattern and stop replacement
In order to change the pattern, first you have to remove the mount by unscrewing the set screws
(Figure 7). Then, with a locknut you release the mount ring (Figure 8), freeing the pattern and the
stop underneath. The latter two elements can then be taken out, changed, and repositioned to the
initial configuration. Then, proceed to reassemble the product by following these steps backwards
(Figure 9).
Figure 7: First step: disassemble the mount by unscrewing the set screws.
Figure 8: Second step: release the mount ring.
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LT2PR | USER MANUAL
Figure 9: From left to right: mount, stop, pattern, ring. When replacing the pattern, the elements
must be placed in the order shown.
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4.4 Lens installation
The product is compatible with lenses with image circle up to 1.1inches (17.6mm).
In order to ensure better homogeneity for lenses with smaller image circle, it is necessary to sub-
stitute the stop of the optical assembly by following the same procedure of Section 4.3. In fact,
3 different stops, for image circle 1.1inches (17.6mm), 1inches (16 mm) and 2/3inches (11 mm)
respectively, are provided with the product.
4.5 Spacer adjustment
The projector should be compatible with all the fixed focal lenses, but in some cases it may prove
necessary to intervene on the spacer so to obtain the desired degree of homogeneity of illumina-
tion.
In order to adjust or add the spacers, first disassemble the mount by unscrewing the set screws
(Figure 7). Using a spanner wrench, remove the phase adjust ring (Figure 10). Then, unscrew the
4 M3 T10 screws so as to remove the corresponding part of the assembly, thus leaving the spacer
free (Figure 11). The latter can then be changed or combined with other spacers. In particular, two
spacers are provided with the product (Figure 12): one is already mounted, the other is additional.
Finally, proceed to reassemble the product by following these steps backwards.
CAUTION: It is important to operate in a clean environment. Please, do not
touch the optics with bare hands.
CAUTION: It is strongly recommended to handle electronics with ESD protection
devices.
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