Banner LTF Series User manual

BANNER ENGINEERING CORP. January 24, 2023
LTF Time of Flight Laser Distance Sensor Quick Start Guide
Product Description
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
Display
Buttons and Icons
Use the sensor buttons Down, Up, Enter, and Escape to program the sensor and to access sensor information.
Figure 1: Features
Three LED indicators provide an ongoing indication of the sensing status.
Analog Output LED Indicator
Solid Amber = Displayed distance is within the taught analog out-
put window
Off = Displayed distance is outside the taught analog output win-
dow
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
Figure 2: shown in Run Mode
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.
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.
Analog Output
LED Indicator
Power
LED Indicator
Discrete Output
LED Indicator
Up and Down
Buttons
Enter Button
Escape Button
Display

2 © Banner Engineering Corp. www.bannerengineering.com
LTF TIME OF FLIGHT LASER DISTANCE SENSOR QUICK START GUIDE BANNER ENGINEERING CORP.
Laser Description and Safety Information
CAUTION
!
RETURN DEFECTIVE UNITS TO THE MANUFACTURER.
Use of controls or adjustments or performance of procedures other than those specified herein may result in haz-
ardous radiation exposure.
• Do not attempt to disassemble this sensor for repair. A defective unit must be returned to the manufacturer.
Class 2 Laser Models
CAUTION
!
NEVER STARE DIRECTLY INTO THE SENSOR LENS.
Laser light can damage your eyes.
• Avoid placing any mirror-like object in the beam. Never use a mirror as a retroreflective target.
Enter Button
Press Enter to:
• Access the Sensor Menu from Run mode
• Access the submenus
• Move right one digit in distance based settings
• Save changes
In the Sensor Menu, a checkmark in the lower right corner of the display indicates that pressing Enter accesses a submenu.
Press Enter to save changes. New values flash rapidly and the sensor returns to the parent menu.
Escape Button
Press Escape to:
• Leave the current menu and return to the parent menu
• Return to Run mode from the Quick Menu
IMPORTANT: Pressing Escape discards any unsaved programming changes.
In the Sensor Menu, a return arrow in the upper left corner of the display indicates that pressing Escape returns to the parent menu.
Press and hold Escape for 2 seconds to return to Run mode from any menu or remote teach.
A lock symbol displays in the upper left corner of the display to indicate when the sensor is locked.
For Safe Laser Use - Class 2 Lasers
• Do not stare at the laser.
• Do not point the laser at a person’s eye.
• Mount open laser beam paths either above or below eye level, where practical.
• Terminate the beam emitted by the laser product at the end of its useful path.
Reference IEC 60825-1:2007, Section 8.2.

© Banner Engineering Corp. www.bannerengineering.com 3
BANNER ENGINEERING CORP LTF TIME OF FLIGHT LASER DISTANCE SENSOR QUICK START GUIDE
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, , 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 program-
ming changes. See the instruction manual for more 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 intrabeam viewing.
Figure 3: FDA (CDRH) warning label
(Class 2)
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.
Figure 4: Analog Current Model Figure 5: Analog Voltage Model
Key
1 = Brown
2 = White
3 = Blue
4 = Black
5 = Gray
shield
+
12-30V dc
D_Out
A_Out
Input
–
Load
* User-configurable PNP/NPN setting
4-20 mA
3
1
2
4
5
NPN
or
PNP
shield
+
12-30V dc
D_Out
A_Out
Input
–
Load
* User-configurable PNP/NPN setting
3
1
2
4
5
NPN
or
PNP
0-10V
2
3
4
1
5

4 © Banner Engineering Corp. www.bannerengineering.com
LTF TIME OF FLIGHT LASER DISTANCE SENSOR QUICK START GUIDE BANNER ENGINEERING CORP.
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.
Figure 7: Quick Menu Map (Window Mode)
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 informa-
tion.
Figure 6: Accessing the menus
See Quick Menu on page 4 See
from Run Mode
Access
Quick Menu
Access
Sensor Menu
Quick Menu
4mA Pt (value)
MENU
20mA Pt (value)
SPt1 Pt (value)
SPt2 Pt (value)
access Sensor
Menu (Top Menu)
Run
Mode
set value with
or
Save setting
and return to
Quick Menu
Cancel and
return to
Quick Menu
* In Setpoint Mode,
SPt1 Pt is replaced by SPt
and SPt2 Pt is not available.

© Banner Engineering Corp. www.bannerengineering.com 5
BANNER ENGINEERING CORP LTF TIME OF FLIGHT LASER DISTANCE SENSOR QUICK START GUIDE
Figure 8: Sensor Menu Map
Run
Mode
Enter Quick Menu Loop
(see Quick Menu diagram)
MENU A_OUT
MENU D_OUT
MENU INPUT
Ente
r
Top Menu
(Continued on right side)
(Continued from left)
T
op Men
u
MENU MEASURE
MENU DISPL
A
Y
MENU INFO
MENU RESET
Sub Menus
Top Men
u
Sub Menus
or
or
Go Back to Parent Menu
Select Menu Item
Press to Save Settin
g
Press and Hold to Go Back
to Run Mode
OffDly 0 ms
Off1Sho 0 ms
OnDly 0 ms
On1Sho 0 ms
Adj20mA +12000mm
Adj4mA +00050mm
Tch4m
A
50mm
Tch20m
A
12000mm
Tch2Pt Tch20m
A
Tch2Pt Tch4m
A
WndSize +02000mm
Tch12m
A
6000mm
TchMid Tch12m
A
TchMid WndSize
Slope Negative
Slope Positive
LossSig 20.5 mA
LossSig Hold
LossSig 3.5 mA
TchSPt1 50mm
TchSPt2 12000mm
Tch2Pt TchSPt2
Tch2Pt TchSPt1
WndSize +00020mm
TchMdPt 6000mm
TchMid TchMdPt
Offset 0 mm
TchMid Offset
TchMid WndSize
Mode Health
Mode Alarm
Timer On1Sho
Timer OffDly
Polarity NPN
Polarity PNP
Mode Swtch
Mode Swtch
Mode Wnd
Mode Wnd
Active High
Active Low
Type LasrEnbl
Type Teach
Type Trigge
r
Type SyncMst
r
Type SyncSlve
Type Disabled
Trigge
r
Average
Trigger Sample
Speed Standard
Speed Fast
Speed Medium
Speed Slow
Trigger Max
Trigger Min
Trigger Range
Trigger TrackMax
Trigger TrackMin
Timer Off1Sho
Timer OnDly
AdjSPt2 +12000mm
AdjSPt1 +00050mm
Sleep 1min
Sleep Disabled
Units in
Units mm
V
iew Invert
View Normal
Sleep 5min
Sleep 15min
Sleep 60min
Version 1.0.0
Model LTF12I
P/N 94849
S/N F..S..P..D..
A_OUT Adj4m
A
A_OUT Ad
j
20m
A
A_OUT Tch2pt
A_OUT TchMid
A_OUT Slope
A_OUT LossSi
g
D_OUT Tch2Pt
D_OUT TchMid
D_OUT Mode
D_OUT Polarit
y
D_OUT Time
r
INPUT Active
INPUT T
y
pe
MEASURE Tri
gg
e
r
MEASURE Speed
D_OUT Ad
j
SPt1
D_OUT Ad
j
SPt2
DISPLA
Y
Sleep
DISPL
A
Y
Units
DISPL
A
Y
View
INFO Version
INFO Model
INFO P/N
INFO S/N
RESET No
RESET
Y
es
Zero Fa
r
Zero Nea
r
DISPL
A
Y
Zero
Shift Auto
Shift Of
f
DISPL
A
Y
Shift
Default Settin
g
Offset 0 mm
TchMid Offset
Shift TchZero
(
in SPt mode onl
y)
SPtRef Object
SPtRef Backgrnd
Offset 0 mm
(
in SPtRef Custom
mode onl
y)
SPtRef Custom
Hyst Auto
D_OUT Hyst
D_OUT SPtRe
f
D_OUT Offset

6 © Banner Engineering Corp. www.bannerengineering.com
LTF TIME OF FLIGHT LASER DISTANCE SENSOR QUICK START GUIDE BANNER ENGINEERING CORP.
Specifications for the LTF Sensor
Certifications
Linearity/Accuracy
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 overvoltages
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
Boresighting
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
Banner Engineering BV
Park Lane, Culliganlaan 2F
bus 3, 1831 Diegem,
BELGIUM
Turck Banner LTD Blenheim
House, Blenheim Court,
Wickford, Essex SS11 8YT,
Great Britain
Industrial
Control
Equipment
3TJJ

© Banner Engineering Corp. www.bannerengineering.com 7
BANNER ENGINEERING CORP LTF TIME OF FLIGHT LASER DISTANCE SENSOR QUICK START GUIDE
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
Reflectance
LTF12 LTF24
±10 mm ±25 mm ±25 mm ±50 mm ±100 mm
6% Black Card 4 m 7 m 7 m 8 m 11 m
18% Gray Card 7 m 11 m 11 m 13 m 18 m
90% White Card 12 m - 24 m - -
Supply Wiring (AWG) Required Overcurrent Protection (A) Supply Wiring (AWG) Required Overcurrent Protection (A)
20 5.0 26 1.0
22 3.0 28 0.8
24 1.0 30 0.5
LTF12 Models
Figure 9: Speed: Slow (256 ms) Figure 10: Speed: Medium (32 ms)
Figure 11: Speed: Standard (8 ms) Figure 12: Speed: Fast (1.5 ms)
6% Black Card
18% Gray Card
90% White Card
Distance in m (ft)
02
(6.6)
4
(13.12)
6
(19.7)
8
(26.2)
10
(32.8)
12
(39.4)
0
2 (0.08)
4 (0.16)
6 (0.24)
8 (0.31)
10 (0.39)
12 (0.47)
14 (0.55)
1σ Repeatability in mm (inch)
Beyond Specified Range
6% Black Card
18% Gray Card
90% White Card
Distance in m (ft)
02
(6.6)
4
(13.12)
6
(19.7)
8
(26.2)
10
(32.8)
12
(39.4)
0
2 (0.08)
4 (0.16)
6 (0.24)
8 (0.31)
10 (0.39)
12 (0.47)
14 (0.55)
1σ Repeatability in mm (inch)
Beyond Specified Range
0
2 (0.08)
4 (0.16)
6 (0.24)
8 (0.31)
10 (0.39)
12 (0.47)
14 (0.55)
6% Black Card
18% Gray Card
90% White Card
1σ Repeatability in mm (inch)
Distance in m (ft)
02
(6.6)
4
(13.12)
6
(19.7)
8
(26.2)
10
(32.8)
12
(39.4)
02
(6.6)
4
(13.12)
6
(19.7)
8
(26.2)
10
(32.8)
12
(39.4)
Distance in m (ft)
6% Black Card
18% Gray Card
90% White Card
0
2 (0.08)
4 (0.16)
6 (0.24)
8 (0.31)
10 (0.39)
12 (0.47)
14 (0.55)
1σ Repeatability in mm (inch)

8 © Banner Engineering Corp. www.bannerengineering.com
LTF TIME OF FLIGHT LASER DISTANCE SENSOR QUICK START GUIDE BANNER ENGINEERING CORP.
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 docu-
mentation 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.
LTF24 Models
Figure 13: Speed: Slow (256 ms) Figure 14: Speed: Medium (32 ms)
Figure 15: Speed: Standard (8 ms) Figure 16: Speed: Fast (1.5 ms)
1σ Repeatability in mm (inches)
2 (0.08)
00
4 (0.16)
6 (0.24)
8 (0.31)
10 (0.39)
12 (0.47)
14 (0.55)
16 (0.63)
18 (0.71)
20 (0.79)
Distance in m (ft)
4
(13.12)
8
(26.24)
12
(39.36)
16
(52.48)
20
(65.60)
24
(78.72)
18% Gray Card
90% White Card
6% Black Card
1σ Repeatability in mm (inches)
2 (0.08)
00
4 (0.16)
6 (0.24)
8 (0.31)
10 (0.39)
12 (0.47)
14 (0.55)
16 (0.63)
18 (0.71)
20 (0.79)
Distance in m (ft)
4
(13.12)
8
(26.24)
12
(39.36)
16
(52.48)
20
(65.60)
24
(78.72)
18% Gray Card
90% White Card
6% Black Card
1σ Repeatability in mm (inches)
2 (0.08)
00
4 (0.16)
6 (0.24)
8 (0.31)
10 (0.39)
12 (0.47)
14 (0.55)
16 (0.63)
18 (0.71)
20 (0.79)
Distance in m (ft)
4
(13.12)
8
(26.24)
12
(39.36)
16
(52.48)
20
(65.60)
24
(78.72)
18% Gray Card
90% White Card
6% Black Card
1σ Repeatability in mm (inches)
2 (0.08)
00
4 (0.16)
6 (0.24)
8 (0.31)
10 (0.39)
12 (0.47)
14 (0.55)
16 (0.63)
18 (0.71)
20 (0.79)
Distance in m (ft)
4
(13.12)
8
(26.24)
12
(39.36)
16
(52.48)
20
(65.60)
24
(78.72)
18% Gray Card
90% White Card
6% Black Card

© Banner Engineering Corp. www.bannerengineering.com 9
BANNER ENGINEERING CORP LTF TIME OF FLIGHT LASER DISTANCE SENSOR QUICK START GUIDE
Document title: LTF Time of Flight Laser Distance Quick Start Guide
Part number: 194136
Revision: F
Original Instructions
© Banner Engineering Corp. All rights reserved.
194136

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