Banner L-GAGE LTF User manual

L-GAGE®LTF Time of Flight Laser Distance
Sensor with IO-Link
Instruction Manual
Original Instructions
195393 Rev. G
19 May 2020
©Banner Engineering Corp. All rights reserved
195393

Contents
1 Product Description .........................................................................................................................................................3
1.1 Models ............................................................................................................................................................................................ 3
1.2 Overview ......................................................................................................................................................................................... 3
1.2.1 Features and Indicators ............................................................................................................................................................4
1.2.2 Display ......................................................................................................................................................................................4
1.2.3 Buttons .................................................................................................................................................................................... 4
1.3 Laser Description and Safety Information ...................................................................................................................................... 5
2 Sensor Installation .......................................................................................................................................................... 6
2.1 Mount the Device ............................................................................................................................................................................6
2.2 Wiring Diagrams ..............................................................................................................................................................................6
2.3 Connecting to RSD1 ....................................................................................................................................................................... 6
3 Sensor Programming ......................................................................................................................................................8
3.1 Quick Menu .....................................................................................................................................................................................8
3.2 Sensor Menu (MENU) ...................................................................................................................................................................... 9
3.3 Remote Input .................................................................................................................................................................................. 9
3.4 Locking and Unlocking the Sensor ...............................................................................................................................................11
3.5 Discrete Output Menu ...................................................................................................................................................................11
3.5.1 Two-Point TEACH .................................................................................................................................................................. 12
3.5.2 Midpoint TEACH ....................................................................................................................................................................13
3.5.3 Adjust Switch Point One ....................................................................................................................................................... 15
3.5.4 Adjust Switch Point Two ....................................................................................................................................................... 16
3.5.5 TEACH Switch Point ..............................................................................................................................................................16
3.5.6 Adjust Switch Point ............................................................................................................................................................... 17
3.5.7 Mode ..................................................................................................................................................................................... 17
3.5.8 Switch Point Reference (SPtRef) ............................................................................................................................................18
3.5.9 Switch Point TEACH Offset ...................................................................................................................................................18
3.5.10 Switch Point Hysteresis .......................................................................................................................................................19
3.5.11 Timer .................................................................................................................................................................................... 20
3.5.12 Polarity ................................................................................................................................................................................. 20
3.6 Input Menu (INPUT) ....................................................................................................................................................................... 21
3.6.1 Input Type ............................................................................................................................................................................. 21
3.6.2 Input Active ........................................................................................................................................................................... 21
3.7 Measure Menu (MEASURE) ...........................................................................................................................................................22
3.7.1 Speed .................................................................................................................................................................................... 22
3.8 Display Menu (DISPLAY) ................................................................................................................................................................23
3.8.1 Units ...................................................................................................................................................................................... 23
3.8.2 Zero and Shift ........................................................................................................................................................................23
3.8.3 View .......................................................................................................................................................................................24
3.8.4 Sleep ..................................................................................................................................................................................... 25
3.9 Information Menu (INFO) ................................................................................................................................................................25
3.10 Reset Menu (RESET) ....................................................................................................................................................................25
3.10.1 Factory Default Settings .......................................................................................................................................................26
4 Sync Master/Slave ........................................................................................................................................................27
5 Additional Remote TEACH Procedures ........................................................................................................................28
5.1 TEACH Both Discrete Output Switch Points Together .................................................................................................................28
5.2 TEACH Both Discrete Output Midpoints Together .......................................................................................................................28
6 Specifications ............................................................................................................................................................... 30
6.1 Repeatability Performance ............................................................................................................................................................ 31
6.2 Dimensions ................................................................................................................................................................................... 32
7 Troubleshooting ............................................................................................................................................................33
8 Sensor Menu Full Map ...................................................................................................................................................34
9 Accessories ................................................................................................................................................................... 35
9.1 Cordsets ........................................................................................................................................................................................ 35
9.2 Brackets ........................................................................................................................................................................................36
9.3 RSD1 Remote Display ................................................................................................................................................................... 36
10 Banner Engineering Corp. Limited Warranty ..............................................................................................................38
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link

1 Product Description
Laser distance sensor with dual discrete (switched) outputs and IO-Link.
• High performance time of flight measurement
• Up to 24 m range
• Reliably detects challenging targets
• Fast set up with intuitive interface
WARNING: Not To Be Used for Personnel Protection
Never use this device as a sensing device for personnel protection. Doing so could lead to serious injury
or death. This device does not include the self-checking redundant circuitry necessary to allow its use in
personnel safety applications. A sensor failure or malfunction can cause either an energized or de-
energized sensor output condition.
1.1 Models
Family Connector
Q = Rotatable M12/Euro QD
QP = PVC M12/Euro Pigtail QD
QD models require mating cordset
Q
Range (m)
12
LTF
12
Laser
Class
C2
C2 = Class 2 LD = Laser diffuse
KLD
Output
Sensing
Mode
K= (2) NPN/PNP discrete
with I/O Link
= 12 m
24 = 24 m
1.2 Overview
The LTF Time of Flight Laser Distance Sensor with IO-Link is designed for precise, long-distance measurements. A 2-line
LCD shows the real-time distance measurement, in either millimeters or inches, when the sensor is in Run mode.
See Factory Defaults for a list of sensor default settings.
Models with current or voltage analog outputs are available.
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link
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1.2.1 Features and Indicators
Power LED
Indicator
Discrete Output 1
LED Indicator
Display
Discrete Output 2
LED Indicator
Push Buttons
Figure 1. Features
Three LED indicators provide ongoing indication of the sensing
status.
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 Indicators
Solid Amber = Discrete Output is On
Off = Discrete Output is Off
1.2.2 Display
Figure 2. Display 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.
1.2.3 Buttons
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.
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 check mark 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.
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link
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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.
1.3 Laser Description and Safety Information
CAUTION: Use of controls or adjustments or performance of procedures other than those specified
herein may result in hazardous radiation exposure. Do not attempt to disassemble this sensor for repair.
A defective unit must be returned to the manufacturer.
1.3 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.
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.
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.
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link
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2 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.
2.1 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.
2.2 Wiring Diagrams
shield
+
12–30 V dc
D1_Out / IO-Link
D2_Out
Input
–
* User-configurable PNP/NPN setting
3
1
2
4
5
NPN
or
PNP
Load
Load
Figure 4. IO-Link Models
Key
2
3
4
1
5
1 = Brown
2 = White
3 = Blue
4 = Black
5 = Gray
2.3 Connecting to RSD1
The following diagram depicts the connection of the LTF to the optional RSD1 accessory.
MQDEC3-503SS
Double Ended Shielded
MQDEC3-506SS
MQDEC3-515SS
MQDEC3-530SS
MQDEC2-506
Flying Lead Shielded
MQDEC2-515
MQDEC2-530
RSD1
LTF
MQDEC3-503SS
Double Ended Shielded
MQDEC3-506SS
MQDEC3-515SS
MQDEC3-530SS
Figure 5. LTF to RSD1
Use these cordsets to connect the RSD1 to the LTF sensor or to other devices, such as PLC inputs, IO-Link masters, or
control systems.
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link
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5-Pin Male Threaded and 5-Pin Female Quick Disconnect M12/Euro-Style Cordset with Shield—Double Ended
Model Length "L1" Style Pinout (Male) Pinout (Female)
MQDEC3-503SS 0.91 m (2.99 ft)
Female Straight/Male Straight
1
4
5
3
2
2
3
4
1
5
MQDEC3-506SS 1.83 m (6 ft)
MQDEC3-515SS 4.58 m (15 ft)
MQDEC3-530SS 9.2 m (30.2 ft)
M12 X 1.0 - 6 g
14.5
ø 5.9
14.5
“L1”
47.4 47.4
M12 X 1.0 - 6 H
1 = Brown
2 = White
3 = Blue
4 = Black
5 = Gray
5-Pin Threaded M12/Euro-Style Cordsets with Shield—Single Ended
Model Length Style Dimensions Pinout (Female)
MQDEC2-506 2 m (6.56 ft)
Straight
44 Typ.
ø 14.5
M12 x 1
2
3
4
1
5
1 = Brown
2 = White
3 = Blue
4 = Black
5 = Gray
MQDEC2-515 5 m (16.4 ft)
MQDEC2-530 9 m (29.5 ft)
MQDEC2-550 15 m (49.2 ft)
MQDEC2-506RA 2 m (6.56 ft)
Right-Angle
32 Typ.
[1.26"]
30 Typ.
[1.18"]
ø 14.5 [0.57"]
M12 x 1
MQDEC2-515RA 5 m (16.4 ft)
MQDEC2-530RA 9 m (29.5 ft)
MQDEC2-550RA 15 m (49.2 ft)
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link
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3 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 p. 8 and Sensor
Menu (MENU) on p. 9 for more information on the options available from each menu. For TEACH options, follow the
TEACH instructions.
In addition to programming the sensor, use the remote input to disable the buttons for security, preventing unauthorized or
accidental programming changes. See Remote Input on p. 9 for more information.
from Run Mode
Access
Quick Menu
Access
Sensor Menu
See Quick Menu on p. 8 See Sensor Menu (MENU) on p. 9
Figure 6. Accessing the Menus
3.1 Quick Menu
The sensor includes a Quick Menu with easy access to view and change the 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 discrete output switch points 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.
Quick Menu
D1 SPt1 (value)
Run Mode
D1 SPt2*(value)
D2 SPt1 (value)
D2 SPt2*(value)
Spt2 not available unless in
Window Mode
set value with
or
Save setting
and return to
Quick Menu
Cancel and
return to
Quick Menu
access Sensor
Menu (Top Menu)
Figure 7. Quick Menu Map (Window Mode)
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link
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3.2 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.
3.3 Remote Input
Use the remote input to program the sensor remotely. The remove input is disabled by default. Activate remote input using
the buttons to navigate to the Input Type menu option.
The remote input provides limited programming options and is Active Low by default. For Active Low, connect the gray
input wire to ground (0 V dc), with a remote switch connected between the wire and ground. To use the Active High
function, configure the sensor for Active High using the buttons on the sensor, then connect the gray input wire to V+ (12 to
30 V dc). Pulse the remote input according to the diagram and the instructions provided in this manual.
The length of the individual programming pulses is equal to the value T: 0.04 seconds ≤ T ≤ 0.8 seconds.
Exit remote programming modes by holding the remote input low for > 2 seconds, or waiting for the automatic 60-second
timeout, or by pressing and holding Escape for 2 seconds. The sensor returns to Run mode without saving any new
settings.
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link
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5x
6x
4x
3x
2x
1x Set Window Size to X1, then back to Run mode
Set Window Size to X2, then back to Run mode
Set Window Size to X3, then back to Run mode
Set Window Size to X4, then back to Run mode
Set Window Size to X5, then back to Run mode
Set Window Size to X6, then back to Run mode
1x
2x
1x
1x
8x
Enter Remote TEACH RMT TCH with measurement value
Enter Remote Setup REMOTE SETUP
Teaching..(D1SPt1) TchSPt1 (D1) with measurement value, then to TchSPt2 (D1)
Teaching..(D1SPt2) TchSPt2 (D1) with measurement value, then back to Run mode
1x
REMOTE TEACH
REMOTE SETUP
D1 Sensor Mode D1-Mode with current value
Window Size WndSize with value
Sensor Lock / Unlock Locks or Unlocks Sensor
Lock Sensor
Unlock Sensor
Reset to Default Settings Resets Sensor to Factory Default Settings
0.04 seconds < T < 0.8 seconds
Timing between Pulse groups > 1 second
Pulse Timing (T)
NOTE: Follow procedure for the TEACH/SET method
(highlighted in black box) chosen in the TEACH Selection menu.
Timeout is 60 seconds.
3x
2x Teaching.. (D2SPt1) TchSPt1 (D2) with measurement value, then to TchSPt2 (D2)
Teaching..(D2SPt2) TchSPt2 (D2) with measurement value, then back to Run mode
1x
3x Teaching.. (D1D2SPt1) TchSPt1 (D1 and D2) with measurement value, then to TchSPt2 (D1 & D2)
Teaching..(D1D2SPt2) TchSPt2 (D1 & D2) with measurement value, then
1x
4x Teaching.. (D1MdPt) TchMdPt (D1) with measurement value, then back to Run mode
5x Teaching.. (D2MdPt) TchMdPt (D2) with measurement value, then back to Run mode
6x Teaching.. (D1D2MdPt) TchMdPt (D1 & D2) with measurement value, then back to Run mode
(teaches Spt in Switch Mode)
5x
6x
4x
3x
2x
1x Set Mode to Alarm, then back to Run mode
Set Mode to Health, then back to Run mode
Set Mode to Switch , then back to Run mode
Set Mode to Switch , then back to Run mode
Set Mode to Window , then back to Run mode
Set Mode to Window , then back to Run mode
D2 Sensor Mode D2-Mode with current value
2x
Run
Mode
2x
1x
4x
back to Run mode
(teaches SPt in Switch Mode)
(teaches SPt in Switch Mode)
5x
6x
4x
3x
2x
1x Set Mode to Alarm, then back to Run mode
Set Mode to Health, then back to Run mode
Set Mode to Switch , then back to Run mode
Set Mode to Switch , then back to Run mode
Set Mode to Window , then back to Run mode
Set Mode to Window , then back to Run mode
Refer to the Window size table for the acceptable values.
Figure 8. Remote Input Map
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link
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Table 1: Remote TEACH Window Sizes
Variable
Remote TEACH Window Size (mm)
LTF12 LTF24
X1 10 10
X2 20 20
X3 100 100
Variable
Remote TEACH Window Size (mm)
LTF12 LTF24
X4 500 500
X5 2000 2000
X6 11950 23950
3.4 Locking and Unlocking the Sensor
Use the lock and unlock feature to prevent unauthorized or accidental programming changes. A lock symbol displays in
the upper left corner of the display to indicate when the sensor is locked. When locked, the menus are available to view
settings, but the values cannot be changed. The remote input is also disabled, except for the unlock function.
Button Instructions
To lock or unlock the sensor using the buttons, press and hold Down and Escape simultaneously for 3 seconds.
Remote Input Instructions
1. Access the setup mode.
Action Result
Double-pulse the remote input.
T T
T
"REMOTE SETUP" displays.
2. Access the lock/unlock function.
Action Result
Four-pulse the remote input.
T T
TTT
T T
"LOCK" and the current status (unlocked or
locked) display.
3. Lock or unlock the sensor.
Action Result
Unlock : Single-pulse the remote line.
T
"Unlocked" flashes and the sensor returns
to Run mode. The sensor is unlocked.
Lock: Double-pulse the remote input.
T T
T
"Locked" flashes and the sensor returns to
Run mode. The sensor is locked and the
lock symbol displays in the upper left
corner.
3.5 Discrete Output Menu
Use this menu to view or change
• Setpoints
• Midpoint
• Mode
• Timers
• Polarity
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link
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MENU D2_OUT
or
or
Go Back to Parent Menu
Select Menu Item
Press to Save Setting
Press and Hold to Go Back
to Run Mode
OffDly 0 ms
Off1Sho 0 ms
OnDly 0 ms
On1Sho 0 ms
Tch2Pt TchSPt2
Tch2Pt TchSPt1
WndSize 20mm
TchMdPt
TchMid TchMdPt
Offset 0 mm
TchMid Offset
TchMid WndSize
Timer On1Sho
Timer OffDly
Polarity NPN
Polarity PNP
Timer Off1Sho
Timer OnDly
D2_OUT Tch2Pt
D2_OUT TchMid
D2_OUT Polarity
D2_OUT Timer
D2_OUT AdjSPt1
D2_OUT AdjSPt2
Default Setting
MENU D1_OUT
OffDly 0 ms
Off1Sho 0 ms
OnDly 0 ms
On1Sho 0 ms
TchSPt1 50mm
TchSPt2 12000mm
Tch2Pt TchSPt2
Tch2Pt TchSPt1
WndSize +00020mm
TchMdPt 6000mm
TchMid TchMdPt
Offset 0mm
TchMid Offset
TchMid WndSize
Timer On1Sho
Timer OffDly
Polarity NPN
Polarity PNP
Timer Off1Sho
Timer OnDly
AdjSPt2 +12000mm
AdjSPt1 +00050mm
D1_OUT Tch2Pt
D1_OUT TchMid
D1_OUT Polarity
D1_OUT Timer
D1_OUT AdjSPt1
D1_OUT AdjSPt2
Hyst Auto
D1_OUT Hyst
Hyst Auto
D2_OUT Hyst
Mode Health
Mode Alarm
Mode Swtch
Mode Swtch
Mode Wnd
Mode Wnd
D1_OUT Mode
SPtRef Object
SPtRef Backgrnd
D1_OUT SPtRef
(in SPt mode only)
D1_OUT Offset
SPtRef Custom
Offset 0 mm
Mode Health
Mode Alarm
Mode Swtch
Mode Swtch
Mode Wnd
Mode Wnd
D2_OUT Mode
SPtRef Object
SPtRef Backgrnd
D2_OUT
SPtRef
(in SPt mode only)
D2_OUT Offset
(in SPtRef Custom
mode only)
SPtRef Custom
Mode PFM
Offset 0 mm
(in SPtRef Custom
mode only)
WndSize +00020mm
TchMdPt 6000mm
AdjSPt2 +12000mm
AdjSPt1 +00050mm
Figure 9. Discrete Output Menu Maps
3.5.1 Two-Point TEACH
The TchSpt1 and TchSPt2 options teach the desired switch points. When using the buttons, the switch points can be
taught independently. Both values must be taught when using the remote input. The same TEACH menus exist for both the
D1_OUT and D2_OUT, but the switch points are set independently.
Note: When in Switch mode, use TEACH Switch Point on p. 16.
Navigate: MENU > Dx_OUT > Tch2Pt > TchSPt1 and navigate: MENU > Dx_OUT > Tch2Pt > TchSPt2
Remote Input: Available
Button Instructions
1. Present the target.
Action Result
Present the target. The target must be within the sensor's range.. The target's distance measurement value
displays.
2. Access the TEACH mode and TEACH the sensor.
Action Result
Navigate: MENU > Dx_OUT > Tch2Pt > TchSPt1
OR
Navigate: MENU > Dx_OUT > Tch2Pt > TchSPt2
The selected TEACH mode and "Teaching"
display while the sensor is being taught.
TEACH Accepted
The new value is shown on the second line
of the display and flashes before it is saved
and the sensor returns to the parent menu.
TEACH Not Accepted
"FAIL" and a warning message display, and
the sensor returns to the parent menu.
3. Repeat steps 1 to 2 for the other switch point, if desired.
Remote Input Instructions
1. Access the TEACH mode.
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Action Result
Single-pulse the remote input.
T
"RMT TCH" and the current switch point
value displays.
2. Present the target.
Action Result
Present the switch point one target. "RMT TCH" and the target's measurement
value display.
3. TEACH the sensor.
Action Result
Double-pulse the remote input.
T T
T
"TchSPt1 Teaching" displays while the
sensor is being taught.
TEACH Accepted
The new value displays on the second line
of the display, flashes, and the sensor goes
to "TchSPt2" and the current measurement
value.
TEACH Not Accepted
"FAIL" flashes, the sensor returns to step 2,
and "RMT TCH" displays.
4. Present the target.
Action Result
Present the switch point two target. "TchSPt2" and the target's measurement
value display.
5. TEACH the sensor.
Action Result
Single-pulse the remote input.
T
"TchSPt2 Teaching" displays while the
sensor is being taught.
TEACH Accepted
The new value displays on the second line
of the display, flashes, and the sensor
returns to Run mode.
TEACH Not Accepted
"FAIL" flashes, the sensor returns to step 2,
and "RMT TCH" displays.
3.5.2 Midpoint TEACH
Output OFF
0 mm
(500 mm) (700 mm)
(600 mm)
1000 mm
SP1 SP2
Midpoint
Output ON
Figure 10. Window and Midpoint Example
The Midpoint TEACH uses both the window size and the
TEACH midpoint to determine the actual measurement
window. For example, a window of 200 mm with a midpoint of
600 mm places the measurement window from 500 mm to
700 mm.
To use Midpoint TEACH:
1. Set the window size.
2. Set the measurement window using TEACH Midpoint
on p. 14.
L-GAGE®LTF Time of Flight Laser Distance Sensor with IO-Link
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Window Size
The D_OUT > TchMid > WndSize option sets the window size that the Midpoint TEACH uses to set the setpoint one and
setpoint two thresholds.
The taught surface must be inside the defined sensing range, and at least one setpoint (with offset applied, if any) must be
located within the sensing range.
Parameters LTF12 LTF24
Window Size Minimum 10 mm 10 mm
Window Size Maximum 11950 mm 23950 mm
Range 50 mm to 12000 mm 50 mm to 24000 mm
Default Window Size 20 mm 20 mm
Remote Input: Available
1. Access the setup mode.
Method Action Result
Push Button "WndSize" and the current window
size value display.
Remote Input
a. Double-pulse the remote input to enter
setup mode.
b. Three-pulse the remote input to enter
window size mode.
T T
T
T T
T
T
T
a. "REMOTE SETUP" displays.
b. "WndSize" and the current value
display.
2. Set the window size.
Method Action Result
Push Button
a. Use Down and Up to set the desired window size—the
value changes in increments of 2.
b. Press Enter to save the new value.
a. "WndSize" and the new value
display.
b. The new value flashes and returns
to "TchMid WndSize".
Remote Input
(Sets A_OUT
and D_OUT
window Size)
Pulse the remote input 1 to 6 times to select the desired window size.
Pulses Window Size
LTF12 LTF24
1 10 mm 10 mm
2 20 mm 20 mm
3 100 mm 100 mm
4 500 mm 500 mm
5 2000 mm 2000 mm
6 11950 mm 23950 mm
The new value flashes and the sensor
returns to Run mode.
TEACH Midpoint
The TchMdPt option sets the midpoint that determines the actual measurement window.
Navigate: MENU > Dx_OUT > TchMid > TchMdPt
Remote Input: Available
Button Instructions
1. Present the target.
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Action Result
Present the target. The target's distance measurement value
displays.
2. Access the TEACH midpoint mode and TEACH the sensor.
Action Result
Navigate: MENU > Dx_OUT > TchMid > TchMdPt
"TchMdPt Teaching" displays while the
sensor is being taught.
TEACH Accepted
The new value is shown on the second line
of the display and flashes before it is saved
and the sensor returns to "TchMid
TchMdPt".
TEACH Not Accepted
"FAIL" and a warning message display, and
the sensor returns to "TchMid TchMdPt".
Remote Input Instructions
1. Access the TEACH mode.
Action Result
Single-pulse the remote input.
T
"RMT TCH" and the current measurement
value display.
2. Present the target.
Action Result
Present the target. "RMT TCH" and the target's measurement
value display.
3. TEACH the sensor.
Action Result
Five-pulse the remote input.
T T
T
T
T
T
T
T
T
"TchMdpt Teaching" displays while the
sensor is being taught.
TEACH Accepted
The new value displays on the second line
of the display, flashes, and the sensor
returns to Run mode.
TEACH Not Accepted
"FAIL" and a warning message display, the
sensor returns to step 2, and "RMT TCH"
displays.
Window TEACH Offset
Use the D_OUT > TchMid > Offset menu to set an offset from the taught distance used during a Midpoint TEACH. By
default, the value is 0 mm because the window is centered around the taught distance. A positive offset value always shifts
the window towards the sensor.
3.5.3 Adjust Switch Point One
The AdjSPt1 option manually adjusts the value of the switch point one threshold for the Discrete Output when the sensor is
in Window mode. The value is adjustable within the sensor's range. It is required to be maintain the minimum window size
between switch points. This menu is not available when the sensor is in Switch, Alarm, or Health mode.
Remote Input: Not available
Default: 50 mm
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3.5.4 Adjust Switch Point Two
The AdjSPt2 option manually adjusts the value of the switch point two threshold for the Discrete Output when the sensor is
in Window mode. The value is adjustable with the sensor's range. It is required to be maintain the minimum window size
between switch points. This menu is not available when the sensor is in Switch, Alarm, or Health mode.
Remote Input: Not available
Default: 12000 mm for LTF12; 24000 mm for LTF24
3.5.5 TEACH Switch Point
The TchSPt option teaches the distance at which the switch point threshold is placed when the Discrete Output is in Switch
mode. This menu is not available when the sensor is in Window, Alarm, or Health mode.
Navigate: MENU > Dx_OUT > TchSPt
Remote Input: Available
Button Instructions
1. Present the target.
Action Result
Present the target. The target must be within the sensor's range. The target's distance measurement value
displays.
2. Access the switch point TEACH mode and TEACH the sensor.
Action Result
Navigate: MENU > Dx_OUT > TchSPt
"TchSPt Teaching" displays while the
sensor is being taught.
TEACH Accepted
The new value is shown on the second line
of the display and flashes before it is saved
and the sensor returns to "Dx_OUT
TchSPt".
TEACH Not Accepted
"FAIL" and a warning message display, and
the sensor returns to "Dx_OUT TchSPt".
Remote Input Instructions
1. Verify the sensor is in Switch mode.
2. Access the TEACH mode.
Action Result
Single-pulse the remote input.
T
"RMT TCH" and the current measurement
value display.
3. Present the target.
Action Result
Present the target. "RMT TCH" and the target's measurement
value display.
4. TEACH the sensor.
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Action Result
Five-pulse the remote input.
T T
T
T
T
T
T
T
T
"TchSPt Teaching" displays while the
sensor is being taught.
TEACH Accepted
The new value displays on the second line
of the display, flashes, and the sensor
returns to Run mode.
TEACH Not Accepted
"FAIL" flashes, the sensor returns to step 3,
and "RMT TCH" displays.
3.5.6 Adjust Switch Point
The AdjSPt option manually adjusts the value of the switch point threshold for the discrete output when the sensor is in
Switch mode. The value is adjustable within the sensor's range. This menu is not available when the sensor is in Window,
Alarm, or Health mode.
Remote Input: Not available
Default: 50 mm
3.5.7 Mode
The Mode option sets the output to the desired mode.
Navigate: MENU > Dx_OUT > Mode
Remote Input: Available
Default: Wnd mode
The following table describes the sensor modes.
Mode Description
Alarm Alarm Mode: The Discrete Output is Off while a target is detected by the sensor at any distance.
When a loss of signal occurs, the Discrete Output is On.
This mode has no associated thresholds.
Health Health Mode: The Discrete Output is On while a target is detected by the sensor at any distance.
When a loss of signal occurs, the Discrete Output is Off.
This mode has no associated thresholds.
Switch Switch Mode: The Discrete Output is On while a target is detected nearer than the switch point threshold.
When a target is detected farther than the switch point threshold or the signal is lost, the Discrete Output is Off.
Switch Switch Mode: The Discrete Output is Off while a target is detected nearer than the switch point threshold.
When a target is detected farther than the switch point threshold or the signal is lost, the Discrete Output is On.
Wnd Window Mode: The Discrete Output is On while a target is detected between the SPt1 and SPt2 thresholds. (Default)
When a target is detected outside the SPt1 and SPt2 thresholds or the signal is lost, the Discrete Output is Off.
Wnd Window Mode: The Discrete Output is Off while a target is detected between the SPt1 and SPt2 thresholds.
When a target is detected outside the SPt1 and SPt2 thresholds or the signal is lost, the Discrete Output is On.
PFM The discrete is pulsed at a frequency between 100 Hz and 600 Hz and is scaled proportional to the sensor's
D2_OUT Measurement span. Targets outside of the measurement span or a loss of signal pulse at 50 Hz.
Remote Input Instructions
1. Access the setup mode.
Action Result
Double-pulse the remote input.
T T
T
"REMOTE SETUP" displays.
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2. View the current mode.
Action Result
Double-pulse the remote input.
T T
T
The current mode displays.
3. Program the sensor.
Action Result
Pulse the remote input 1 to 6 times to select the desired mode.
Pulses Mode
1
T
Alarm
2
T T
T
Health
3
T T
T
T
T
Swtch
4
T T
TTT
T T
Swtch
5
T T
T
T
T
T
T
T
T
Wnd
6
T T
T
T
T
T
T
T
T
T
T
Wnd
The selected mode flashes and the sensor
returns to Run mode.
3.5.8 Switch Point Reference (SPtRef)
The SPtRef menu only displays for a discrete output when it is set to switch mode. This setting cannot be changed with
remote teach.
•Object (default). Object mode automatically optimizes the switching threshold just past the taught distance, farther
away from the sensor's face.
•Background. Background mode automatically optimizes the switching threshold just in front of the taught distance,
closer to the sensor's face.
•Custom. Custom mode allows the user to define the location of the switching threshold relative to a taught distance
using the Offset menu that appears only after selecting Custom Switch Point Reference.
In Object or Background, the distance between the taught surface and the switching threshold varies depending on
measurement stability. Use object mode when teaching an object if a change in state is required when the object is no
longer present. Use background mode when teaching background so that the output state changes when a new object is in
front of the background.
Navigate: MENU > D_OUT > SPtRef
Remote Input: Not available
Default: Object
3.5.9 Switch Point TEACH Offset
Use this menu to set an offset from the taught distance after a switch point TEACH, if SPtRef is set to Custom.
By default, the value is 0 mm. A positive offset value always shifts the threshold towards the sensor.
Navigate: MENU > Dx_OUT > TchMd > Offset
Remote Input: Not available
Default: 0 mm
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3.5.10 Switch Point Hysteresis
With the default setting of AUTO, the hysteresis value applied at each threshold is automatically calculated and set based
on target, distance and measurement repeatability, with a 10 mm minimum setting.
By default, the hysteresis is applied away from the sensor. Changing the SPt Ref setting from Object to Background
changes the direction of the hysteresis.
Object
(Object)
Setpoint Reference
(SPtRef)
Mode
SPt SPt
Background
(Backgrnd)
Hyst
On
Output
(On/Off)
Off
Near Far Near Far
On
Off
Hyst
Hyst
Hyst
On
Off
On
Off
Swtch Swtch
Output
(On/Off)
Figure 11. How hysteresis affects the sensor output based on the discrete output switchpoint mode and the setpoint reference mode
Mode
SPt1
Hyst Hyst
On
Off
Near Far
Wnd Wnd
Output
(On/Off)
SPt2 SPt1
Hyst Hyst
On
Off
Near Far
Output
(On/Off)
SPt2
Figure 12. How hysteresis affects the two discrete output window modes
On
Off
Near
Far
Setpoint
Hysteresis
Signal
Output
Setpoint Mode Example: Mode = Swtch
SPtRef = Backgrnd
Figure 13. How hysteresis affects the output on/off points when if the sensor is configured with mode = Swtch_|- and SPtRef configured as Backgrnd
Press the up button ( ) to manually select a constant hysteresis value between 2 mm and 12000 mm.
Navigate: MENU > D_OUT > Hyst
Remote Input: Not available
Default: Auto
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3.5.11 Timer
The Timer option sets the delays and timers.
On/Off Delays and On/Off One-Shot timers can
be programmed between 1 to 9999 ms (a value
of 0 disables the delay/timer). Figure 14 on p.
20 defines how the delays/timers affect the
output behavior.
Navigate: MENU > Dx_OUT > Timer
Remote Input: not available
Default: 0 ms for all timers
Output
OFF Delay
ON Delay
Time
OFF 1-Shot
ON 1-Shot
ON
OFF
D
D
D
D
D
D
D
D
(D = 1 - 9999 ms)
Figure 14. Delays/Timers
Some combinations of delays/timers are not allowed. The programming menu automatically disables invalid combinations
of delays/timers. The following table shows the allowable combinations of delays/timers.
Off Delay Off One-Shot Timer On Delay On One-Shot Timer
Off Delay (OffDly) OK OK OK N/A
Off One-Shot Timer (Off1Sho) OK OK N/A N/A
On Delay (OnDly) OK N/A OK OK
On One-Shot Timer (On1Sho) N/A N/A OK OK
3.5.12 Polarity
The Polarity option sets the discrete output polarity to either PNP (current sourcing) or NPN (current sinking). The physical
wiring of the sensor and the sensor polarity setting must match.
Remote Input: Not available
Default: PNP
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