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UCC BI general wiring standards
To achieve reliable operation of the UCC BI the following should be observed:
- All signal cables MUST be screened and all cable screens should be connected electrically to the cable connector's metal shells.
- It is recommended that cable screens should only be connected to the functional earth (via the connector shell) of the UCC BI and
SPA2-2. To avoid earth loops, cable screens should not be directly attached to the CMM's functional earth. - The grounding must be continuous between all equipment in the installation.
- All cable connectors should be secured to the UCC BI and SPA2-2 by the connector jack screws (where present).
NOTE: The UCC BI and SPA2-2 electronic zero volt rails are connected to their respective ground planes at star points within the UCC BI, the SPA2-2, and also to the protective ground of the SPA2-2 ac supply.
Naming convention
Function | Description |
|---|---|
signal | active high |
/signal/ | (active low) |
reserved | Do not use. For Renishaw purposes only. |
signal + | Positive differential pair |
signal - | Negative differential pair |