Renishaw H-1000-5068-02-A SPA1 s Installation Guide Page 19

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Installing the SPA1 17
4.0 Installing the SPA1
4.1 Preparation of SPA1 service pack
When the SPA1 service pack is received it contains all the components required to construct the following
items. These items will assist in the connection and set-up of the SPA1 unit.
4.1.1 Motor connectors
The service pack contains three motor connectors that fit the motor output from the SPA1.
Each of the three connector assemblies consist of the following:
- 1 off metal backshell
- 1 off power and signal D-type connector
- 2 off power pins
The power and signal D-type and power pins are all of the solder bucket variety and should be fitted to
the CMM wiring by a competent technician or engineer.
4.1.2 20 K potentiometer on dil header
The 20 K potentiometer on dil header must be constructed for use (if required) as detailed in section 4.5.1
step 12.
To fit a 20 K potentiometer on dil header the following procedure is recommended.
- Place the dil header on a firm surface.
- Solder two of the potentiometer legs (centre and one side) to one side of the dil header, and the other
leg to the other side, refer to figure 8 below.
Figure 8 - 20 K potentiometer on dil header
4.1.3 20 K potentiometer on 150 mm wire
The 20 K potentiometer on 150 mm wire must be constructed for use (if required) as detailed in section
4.5.1 step 3 onwards.
To construct the 20 K potentiometer on 150 mm wire the following procedure is recommended.
- Take the wire supplied in the SPA1 service pack and cut it in half.
- Solder one of the wires to two of the potentiometers legs (centre and one side).
- Solder the second wire to the other potentiometers leg.
- Solder either of the wires, with the potentiometer fitted to the other end, to pin 1 on the dil header,
refer to figure 9 below.
- Solder the other wire, with the potentiometer fitted to the other end, to pin 16 on the dil header, refer
to figure 9 below.
Figure 9 - 20K potentiometer on 150mm wire
20 K multi-turn
potentiometer
16-pin DIL
header
150 mm
20 K multi-turn
potentiometer
16-pin DIL
header
Wire
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