BANNER 194135 LTF Time of Flight Laser Distance Sensor User Guide

BANNER 194135 LTF Time of Flight Laser Distance Sensor User Guide

Product Description Quick Start Guide

Laser distance sensor with both analog and discrete (switched) outputs
This guide is designed to help you set up and install the LTF Time of Flight Laser Distance Sensor. For complete information on programming, performance, troubleshooting, dimensions, and accessories, please refer to the Instruction Manual at www.bannerengineering.com. Search for p/n 194135 to view the manual. Use of this document assumes familiarity with pertinent industry standards and practices.

WARNING:

• Do not use this device for personnel protection
• Using this device for personnel protection could result in serious injury or death.
• This device does not include the self-checking redundant circuitry necessary to allow its use in personnel safety applications. A device failure or malfunction can cause either an energized (on) or de-energized (off) output condition.

Features and Indicators

Three LED indicators provide an ongoing indication of the sensing status.
Analog Output LED Indicator
Solid Amber = Displayed distance is within the taught analog output window
Off = Displayed distance is outside the taught analog output window
Power LED Indicator
Solid Green = Normal operation, power On and laser On
Flashing Green (1 Hz) = Power On and laser Off (laser enable mode)
Discrete Output LED Indicator
Solid Amber = Discrete Output is On
Off = Discrete Output is Off

Display

The display is a 2-line, 8-character LCD. The main screen is the Run mode screen, which shows the real-time distance measurement and the analog output measurement.

Buttons and Icons

Use the sensor buttons Down, Up, Enter, and Escape to program the sensor and to access sensor information.

Down and Up Buttons
Press Down and Up to:

• Access the Quick Menu from Run mode
• Navigate the menu systems
• Change programming settings
• Change individual digit values in distance based settings

When navigating the menu systems, the menu items loop. Continued on page 2

Laser Description and Safety Information

Class 2 Lasers
Class 2 lasers are lasers that emit visible radiation in the wavelength range from 400 nm to 700 nm, where eye protection is normally afforded by aversion responses, including the blink reflex. This reaction may be expected to provide adequate protection under reasonably foreseeable conditions of operation, including the use of optical instruments for intrateam viewing.

Class 2 Laser Safety Notes
Low-power lasers are, by definition, incapable of causing eye injury within the duration of a blink (aversion response) of 0.25 seconds. They also must emit only visible wavelengths (400 to 700 nm). Therefore, an ocular hazard may exist only if individuals overcome their natural aversion to bright light and stare directly into the laser beam.

Sensor Installation

NOTE: Handle the sensor with care during installation and operation. Sensor windows soiled by fingerprints, dust, water, oil, etc. may create stray light that may degrade the peak performance of the sensor. Blow the window clear using filtered, compressed air, then clean as necessary using 70% isopropyl alcohol and cotton swabs or water and a soft cloth.

Mount the Device

1. If a bracket is needed, mount the device onto the bracket.
2. Mount the device (or the device and the bracket) to the machine or equipment at the desired location. Do not tighten the mounting screws at this time.
3. Check the device alignment.
4. Tighten the mounting screws to secure the device (or the device and the bracket) in the aligned position.

Wiring Diagrams

Sensor Programming

Program the sensor using the buttons on the sensor or the remote input (limited programming options).
From Run mode, use the buttons to access the Quick Menu and the Sensor Menu. See “Quick Menu ” on page 4, Key definition for ” (keyrefName}” not found in the DITA map., and the instruction manual (p/n 194135) for more information on the options available from each menu. For TEACH options, follow the TEACH instructions in the instruction manual.
In addition to programming the sensor, use the remote input to disable the buttons for security, preventing unauthorized or accidental programming changes. See the instruction manual for more information.

Quick Menu

The sensor includes a Quick Menu with easy access to view and change the analog and discrete output switch points. Access the Quick Menu by pressing Down or Up from Run mode. When in the Quick Menu, the current distance measurement displays on the first line and the menu name and the analog value alternate on the second line of the display. Press Enter to access the switch points. Press Down and Up to change each digit. Press Enter to move right one digit. After reviewing each digit, press Enter again to save the new value and return to the Quick Menu. Press Cancel to ignore any changes made if only some digits have been changed.

LTF Sensor Menu (MENU)
Access the Sensor Menu by pressing Enter from Run mode. The Sensor Menu is also accessible from the Quick Menu: navigate to MENU and press Enter. The Sensor Menu includes several submenus that provide access to view and change sensor settings and to view sensor information.

Specifications for the LTF Sensor

Supply Voltage
12 V DC to 30 V DC
Power and Current Consumption (Exclusive of Load)
Normal Run Mode: < 2.1 W
Current consumption < 85 mA at 24 V DC
Supply Protection Circuitry
Protected against reverse polarity and transient overvoltage’s
Construction
Die-cast zinc housing; acrylic window

Maximum Torque
2.6 N·m (23.0 in-lbs)
Sensing Beam
Visible red, 660 nm
Sensing Range — LTF12
90% White Target: 50 mm to 12000 mm
18% Gray Target: 50 mm to 11000 mm
6% Black Target: 50 mm to 7000 mm
Sensing Range — LTF24
90% White Target: 50 mm to 24000 mm
18% Gray Target: 50 mm to 18000 mm
6% Black Target: 50 mm to 11000 mm
Ambient Light Immunity

40000 lux
Delay at Power Up
2 seconds
Measurement Output Rate
0.5 ms
Output Configuration
Analog output: 4 to 20 mA or 0 to 10 V, depending on model
Discrete output rating: Discrete NPN/PNP is user-configurable
Output Ratings
Discrete Output: 100 mA maximum (protected against continuous overload and short circuit)
OFF-state leakage current (PNP): < 10 μA at 30 V
OFF-state leakage current (NPN): < 200 μA at 30 V
Output saturation voltage (PNP outputs): < 3 V at 100 mA
Output saturation voltage (NPN outputs): < 1.6 V at 100 mA
Analog current output (LTF…I Models):1 kΩ maximum at 24 V; maximum load resistance = [(Vcc-4.5)/0.02 Ω] Analog voltage output (LTF…U Models): 2.5 kΩ minimum load resistance
Remote Input
Allowable Input Voltage Range: 0 to Vcc
Active Low (internal weak pullup—sinking current): High State > 4.3 V at 740 μA maximum; Low State < 1.3 V at 800 μA maximum
Active High (internal weak pulldown—sourcing current): High
State > 4.3 V at 1.7 mA maximum; Low State < 1.3 V at 1.6 mA maximum
Minimum Window Size, Analog and Discrete 10 mm
Bore sighting
100 mm radius at 12000 mm
Temperature Effect
50 mm to 12000 mm: ±0.25 mm/°C (typical)
12000 mm: ±0.5 mm/°C (typical)
Resolution
LTF12: < 0.3 mm to 3 mm
LTF24: < 0.3 mm to 4 mm
Resolution measured as twice repeatability with white target at slow response speed at 20 °C. See repeatability curves for more detail.
Beam Spot Size
6.5 mm at 50 mm
10 mm at 7500 mm
12.5 mm at 12000 mm
35 mm at 24000 mm
Beam spot size is calculated as 1.6 times the D4σ measured diameter
Response Time
Fast: 1.5 ms
Standard: 8 ms
Medium: 32 ms
Slow: 256 ms
Storage Conditions
–30 °C to +65 °C (–22 °F to +149 °F)
Operating Conditions
–20 °C to +55 °C (–4 °F to +131°F)
90% at +55 °C maximum relative humidity (non-condensing)
Shock
MIL-STD-202G, Method 213B, Condition I (100G 6x along X,
Y, and Z axes, 18 shocks), with device operating
Repeatability
See Performance Curves
Environmental Rating
IP67; NEMA 6
Vibration
MIL-STD-202G, Method 201A (Vibration: 10 Hz to 55 Hz, 0.06 inch (1.52 mm) double amplitude, 2 hours each along X, Y and Z axes), with device operating
Application Note
For optimum performance, allow 15 minutes for the sensor to warm up

Certifications

Linearity/Accuracy

Required Overcurrent Protection
⚠ WARNING: Electrical connections must be made by qualified personnel in accordance with local and national electrical codes and regulations.
Overcurrent protection is required to be provided by end product application per the supplied table. Overcurrent protection may be provided with external fusing or via Current Limiting, Class 2 Power Supply.

Supply wiring leads < 24 AWG shall not be spliced.
For additional product support, go to www.bannerengineering.com.

Repeatability Performance

Banner Engineering Corp Limited Warranty

Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of shipment. Banner Engineering Corp. will repair or replace, free of charge, any product of its manufacture which, at the time it is returned to the factory, is found to have been defective during the warranty period. This warranty does not cover damage or liability for misuse, abuse, or the improper application or installation of the Banner product.

THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED (INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE), AND WHETHER ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR TRADE USAGE.

This Warranty is exclusive and limited to repair or, at the discretion of Banner Engineering Corp., replacement. IN NO EVENT SHALL BANNER ENGINEERING CORP. BE LIABLE TO BUYER OR ANY OTHER PERSON OR ENTITY FOR ANY EXTRA COSTS, EXPENSES, LOSSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM ANY PRODUCT DEFECT OR FROM THE USE OR INABILITY TO USE THE PRODUCT, WHETHER ARISING IN CONTRACT OR WARRANTY, STATUTE, TORT, STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE.

Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any obligations or liabilities relating to any product previously manufactured by Banner Engineering Corp. Any misuse, abuse, or improper application or installation of this product or use of the product for personal protection applications when the product is identified as not intended for such purposes will void the product warranty. Any modifications to this product without prior express approval by Banner Engineering Corp will void the product warranties. All specifications published in this document are subject to change; Banner reserves the right to modify product specifications or update documentation at any time. Specifications and product information in English supersede that which is provided in any other language. For the most recent version of any documentation, refer to: www.bannerengineering.com.

For patent information, see www.bannerengineering.com/patents.

Document title: LTF Time of Flight Laser Distance Quick Start Guide Part number: 194136 Revision: F Original Instructions © Banner Engineering Corp. All rights reserved.

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References

• Banner Engineering
• Patents

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