Renishaw MP12 Installations- Und Anwenderhandbuch Seite 40

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1. LED (yellow) – START signal status.
Lit when a START signal is transmitted to
the probe. This LED will either flash once
when a machine controlled START signal
is commanded, or flash continuously at
one second intervals when the system is
set to 'Auto-Start' mode and is awaiting a
probe transmission signal.
APPENDIX 4
OMI (OPTICAL MACHINE INTERFACE)
The OMI is fully described in
User's guide H-2000-5062
2. LED (red, yellow, green) – infrared SIGNAL
strength received from probe.
As long as there is power to the system, this LED
will always be lit. It is a tri–colour LED and indicates
as follows:
Red
Yellow –
Green –
Note:
1. During a start transmission, the SIGNAL LED will
change through red to yellow and green. This is the
normal power-up sequence.
2. The SIGNAL LED will flash (yellow or green) if
optical interference is being received whilst the
probe is not transmitting.
– Signal received from the probe is either
too weak or not there at all (i.e. no
signal).
Signal received is marginal, i.e. the
OMI is at the edge of its operating
envelope. Correct operation in this
region cannot be guaranteed.
Signal received is good and system will
operate correctly.