Switch Point Reference (Sptref); Switch Point Teach Offset; Switch Point Hysteresis - Banner LTF Series Instruction Manual

Time of flight laser distance sensor
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Pulse the remote input 1 to 6 times to select the desired mode.
Pulses
1
2
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6

3.6.8. 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

3.6.9. 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 > D_OUT > TchMd > Offset
Remote Input: Not available
Default: 0 mm

3.6.10. 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.
Action
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© Banner Engineering Corp. www.bannerengineering.com
Result
The selected mode flashes and the sensor returns to
Run mode.
Mode
Alarm
Health
Swtch
Swtch
Wnd
Wnd
S
P
ENSOR
ROGRAMMING
22

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