EA Technology UltraTEV Monitor, Operating Manual

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EA Technology UltraTEV Monitor
TM
Operating Manual 2178L014
38
8 Wall Mount SCADA Interface
The Monitor contains several SCADA interfaces to enable the user to incorporate the Monitor within
a separate control system. Each Hub Unit is equipped with 4 configurable Outputs and 2 isolated
Inputs. Further information regarding these inputs and outputs is given below. Please see the
section 12 for further details of alarm settings.
8.1 Outputs
The SCADA relay outputs are configured as shown in Figure 277. In normal operation the contacts
are held in the “Clear” state (appropriate LED indicator is switched o ff). In the event of an alarm
condition, or power loss, the outputs will switch into the alarm state (with appropriate indicator
being in ON state
– unless power has been lost).This is shown in Figure 288 as the “Alarm” state.
All outputs are electrically isolated from the Hub Unit itself.
Figure 27: SCADA Relay Configuration – Normal operation
Figure 28: SCADA Relay Configuration – Alarm, Fault Condition or power loss.
8.2 Inputs
The Monitor Hub Unit incorporates two electrically isolated inputs which can be used to detect the
presence of a DC voltage (12-90V) applied to the input terminals. See section 17.3.12 Hub Isolated
Inputs for input specifications.
Note: Switch configuration
is Software Controllable
Input
Alarm
Clear
COM
Input
Alarm
Clear
COM