OMI-2 / OMI-2C

A combined optical receiver/interface, which conveys and processes signals between an inspection probe and the CNC machine's control.

The OMI-2 is a combined optical receiver/interface, which conveys and processes signals between an inspection probe and the CNC machine's control. The OMI-2 is compatible for use with optical machine probes that utilise Renishaw's state-of-the-art modulated optical transmission method, to provide the highest level of resistance to light interference.

The OMI-2C variant allows for integration into the machine spindle nose.

About OMI-2

The OMI-2 optical machine interface is designed to reside in the machine's working envelope. Its purpose is to send and receive probe signals. The OMI-2, like the OMI, has the added benefit of supplying totem pole (transistor) output, thus eliminating the need for a separate MI12 interface.

OMI-2 differs from the OMI in that it offers the new modular transmission method, providing increased resistance to optical interference.  

About OMI-2C

The OMI-2C is an alternative to the OMI-2, providing the same capability in a package that can be integrated into the machine's spindle housing.

The OMI-2C is suitable for use with Heidenhain and Siemens controllers.

Compatible probes

Renishaw's new generation of optical probes offers the new modulated transmission method, allowing them to be used with OMI-2, OMI-2C and OMI-2T combined interface/receiver units. These probes are also 'backward compatible'; they can be configured to communicate by the earlier legacy transmission method, so you can upgrade to a new generation probe module without having to upgrade your transmission units.

OMP40 - offers legacy and now modulated optical transmission methods

OMP60 - offers both legacy and modulated optical transmission methods

OMP400 - offers both legacy and modulated optical transmission methods

 

OMI-2 / OMI-2C specification

(refer to data sheet for full details)

Specification
Principal application	Small-to-medium machining centres and lathes
Transmission type	Infra-red optical
Transmission range & angle	Varies depending on probe.
Power supply	12 V to 30 V dc Alternatively, use the PSU3 power supply.
Cable	8 m and 15 m standard lengths. OMI-2: Screened, 13 core (each core 18 x 0.1 mm). OMI-2C: 12-core polyurethane screened (each core 7 x 0.1 mm)
Mounting	Mounting bracket allowing directional setting
Sealing	IPX8
Compatible interface	N/A

Ordering information

Part number	Description
A-5191-0049	OMI-2 interface kit (8 m)
A-5191-0500	OMI-2 interface kit (15 m)