136
Repair instruction
Chapter 16
Fault tracing and repair
9. Check that the springs on the card rail have connection to the corresponding me-
tallic area on the circuit board when the new module is inserted.
10. Reassemble the terminal.
If the REx 5xx terminal has the optional increased measuring accuracy, a file with unique cali-
bration data for the transformer module is stored in the Main processing module. Therefore it is
not possible to change only one of these modules with maintained accuracy.
Summary of Contents for REB 551-C3*2.5
Page 9: ...Contents ...
Page 21: ...12 Introduction to the installation and commissioning manual Chapter 1 Introduction ...
Page 27: ...18 Note signs Chapter 2 Safety information ...
Page 53: ...44 Installing the 56 64 kbit data communication cables Chapter 5 Installing the terminal ...
Page 59: ...50 Checking the binary I O circuits Chapter 6 Checking the external circuitry ...
Page 147: ...138 Repair support Chapter 16 Fault tracing and repair ...