ABB S800 I/O - AI880 Module Details

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3BSE 020 923R101 69
Proceed as follows to check analog channels:
– Set the output value, and check that the corresponding output shows this
value on the display. Then measure the value on the screw terminal block
of the corresponding MTU, and if practical, at the process.
– When checking analog output signals use a multimeter to test that an
output signal is obtained over the complete signal range.
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When the test of the control system is complete, and the plant functions
satisfactorily, the following actions should be taken:
• Check that all S800 I/O modules are properly inserted in the MTUs.
• Check that all terminal screws on MTUs are properly tightened and that all
grounds are good.
• Check that all cable connectors are properly mated.
• Check that all cable coverings or tie wraps are installed properly to avoid cable
wear.
• Check that no tools or debris from installation remain in the cubicle. Clean the
cabinet.