Renishaw apply innovation SPA2, Installation Manual

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24 Hardware configuration of the SPA2
4.2 Installing the encoder option card
CAUTIONS: Connection to the protective bonding circuit: Provision for connecting the complete
machine to the protective ground (earthing) is the responsibility of the manufacturer or equipment
installer.
Isolation: The SPA 2 is isolated by removing the mains connector. It is the responsibility of the
equipment installer or user to fit additional means of isolation if indicated by risk assessment.
Earth fault/residual current protection: It is the responsibility of the machine manufacturer or
product installer to ensure an adequate level of protection for the complete machine installation.
NOTE: It is assumed that this procedure is part of the initial installation process and no mains connection
is made to the SPA 2 .
4.2.1 Recommended procedure to install the encoder interface card
1. Remove the encoder interface card from it’s packaging.
2. Attach the connection cable that is supplied with the encoder interface card to the card, see diagram
below.
3. Place the SPA
2
on a firm flat surface, with the base of the unit placed on the surface and the rear of
the unit facing towards you.
4. Remove the appropriate encoder interface connector protection cover from the rear of the SPA
2
, refer
to section 3.1 or 3.2. This is achieved by removing the six holding screws and washers from the
edges of the protection cover. Retaining the fixings.
5. Remove the top panel of the SPA 2 enclosure by removing the five lid screws and washers at the top
of the rear panel and the three screws located at the top of each side panel. Retain the fixings.
!