Rockwell Automation 1608P ProDySC User Manual, 25 and 50 A - Manual (Page 22)

22 Rockwell Automation Publication 1608P-UM001A-EN-P - July 2013
Chapter 5 Display Screen
Table 5 - System Status Description
Voltage Sag Events
A voltage sag is defined as the period when input RMS voltage drops to less than
88.5% of the rated DySC voltage. Details of each voltage sag and corresponding
ProDySC protection are captured and saved to the voltage sag log.
Voltage Sag Log
The "Voltage Sag Log" screen (See Figure 17 ) displays a list of the last 61 voltage
sags. Reach this screen by pressing "VOLTAGE SAGS" button on the "HOME"
screen.
Figure 17 - Voltage Sag Log
Table 6 - Voltage Sag Log Description
Description Function
System Status
Overall system status including current operational status, availability to correct sags, and
internal cabinet temperature
Phase Status
Voltage, current, frequency, and static switch temperature are displayed for all phases. The
percentage displayed following the voltage and current is the percent of nominal value for the
ProDySC. Nominal values are listed on the “View Model Information” screen.
Waveforms
A sample of a 4 cycle waveform that includes real-time line voltage, load voltage, or load
current can be selected for display
Description Function
# Unique ID within the list (0-60) to identify the voltage sag
Time Start time and date of the voltage sag
Check Mark Denotes the ProDySC protected the voltage sag
RMS % Worst-case RMS voltage (percent of nominal) across all phases
Duration Duration of the voltage sag
Note: Use the up/down arrows to navigate through the list. Press the “SELECT” button to view additional details about
the voltage sag