SESOTEC PRIMUS+ - Replacement of Electronic Boards; Replacing the CU Electronics Board PRIMUS

7. Errors and error remedying
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7.4 Replacement of electronic boards
The Control-Unit PRIMUS+ consists of the following three boards: CU electronics board (2),
IO electronics board (5) and display board (7).
2
1
3
6
5
4
7
7.4.1 Replacing the CU electronics board PRIMUS+
1. Disconnect voltage supply and external circuits and open the cover at the electronics housing.
2. Remove connectors and remove the fastening screws (1).
3. Remove the CU electronics board (2).
4. Install the new board in reverse order, but do not connect mains power supply!
The data memory is located on the CU electronics board (evaluation electronics board).
The memory contains all device and product parameter settings.
If this memory device is transferred to a new board no new settings must be performed.