OMP400 installation guide
2.2
OMP400 basics
Optical transmission method
The OMP400 can be operated in either legacy or modulated mode. The modulated mode has a
higher resistance to light interference. Certain forms of light interference can cause false triggers or
mimic a start signal and falsely activate the probe. These effects are much reduced when modulated
transmission is selected.
Legacy mode
When set to legacy mode, the probe will only function with an OMI or OMM / MI 12.
If start problems are experienced in legacy mode, activate the Legacy Start Filter ON option. This
introduces a 1 second delay to the probe switch on time, and improves the probe's resistance to false
starts caused by light interference.
NOTE: The probing program on the machine will need to take account of this delay.
Modulated mode
When set to modulated mode, the probe will only function with an OMI-2, OMI-2T OMI-2H or
OMI-2C interface.
Modulated transmission is capable of providing two different coded start signals. This allows the use of
two probes with one interface. Twin probe installations require an OMI-2T interface.
Twin probe system
To operate a twin probe system, one probe needs to be set to PROBE 1 start and the other set to
PROBE 2 start. These settings are user configurable.
In a twin probe system, such as a spindle probe and an optical tool setting probe, the spindle probe
would be set to PROBE 1 start and the tool setter to PROBE 2 start.
NOTE: When used in conjunction with an OMI-2T, the OMP400 switch on method must be set to
optical on (standard).
Trigger Logic™
Trigger Logic™ (see Section 4 - Trigger Logic™) is a method that allows the user to view and select
all available mode settings in order to customise a probe to suit a specific application. Trigger Logic™
is activated by battery insertion and uses a sequence of stylus deflection (triggering) to systematically
lead the user through the available choices to allow selection of the required mode options.
A Probe Setup app is available that simplifies this process with clear, interactive instructions and
informative videos and is available for download on the App Store and Google Play.
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