Basler Electric DGC-2020HD - Manual (Page 326)

316 9469300990 Rev B
AEM-2020 DGC-2020HD
Mode
The mode can be set for Over or Under. If Over mode is selected, an alarm is annunciated when the
metered input increases above the Threshold setting for the duration of the Activation Delay. If Under
mode is selected, an alarm is annunciated when the metered input decreases below the Threshold setting
for the duration of the Activation Delay.
Alarm Configuration
Each remote RTD input protection threshold item can be independently configured to annunciate an
alarm or pre-alarm, or be configured as status only when the metered input falls beyond the threshold. A
user-adjusted activation delay setting delays alarm annunciation until after the threshold has been
exceeded.
Remote RTD input protection is disabled when Alarm Configuration is set to “None”.
Logic Connections
Remote RTD input protection logic connections are made on the BESTlogicPlus screen in
BESTCOMSPlus. The RTD Input 1, Threshold 1 logic block is illustrated in Figure 197. The output is true
during a trip condition. The alarm and pre-alarm logic blocks are similar.
Figure 197. Remote RTD Input Protection Logic Block
Operational Settings
Remote RTD input protection operational settings are configured on the AEM x RTD Input #y (where x =
1 to 4 and y = 1 to 8) settings screen (Figure 198) in BESTCOMSPlus.
Figure 198. Settings Explorer, Programmable Inputs, Remote Analog Inputs, AEM 1 RTD Input #1