ABB eVM1 Installation And Service Instructions Manual page 96

Note
Note
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14.8 Monitoring
The monitoring Tab enables access to the IED to monitor DI/O status, CB currents, start/trip
conditions, etc. when an active communication link has been established with the electronic Device
(IED).
The left column of the Monitoring page provides the same control capabilities (CB Open/Close)
and status LEDs available on the local CB HMI.
The show pushbutton enables you to list Anomalies detected when the No Anomalies LED is
blinking.
Fig. 83
14.8.1 Digital Input monitoring
The 16 available inputs are mapped on the monitoring page according to the meanings selected
in the Input Mapping tab.
Caution: the input meanings shown are only updated after a configuration upload from the IED.
When the input signal goes High (i.e. an AC/DC voltage over the activation threshold of about 20
V is applied) for at least 10 10 ms (20 ms for opening command), the input will be active and the
associated LED on the Monitoring Tab goes from grey to yellow.
Caution: for negated digital inputs, the LED is on (yellow) when the input signal goes High but the
associated function will be executed when there is no signal and the LED is off (grey). E.g. #CB Close
disabling: when the LED is off the CB will not execute close commands because the function is
active.