95
CET Electric Technology
Figure 4-34 Dip/Swell Triggered Waveform
4.3.13 Phase Reversal and Phase Loss Alarm
The PMC-592 supports the Phase Reversal and Phase Loss Alarms since Firmware V1.00.05.
The following table illustrates the Phase Reversal and Phase Loss Alarm parameters and their respective
default values.
Parameters
Description
Range/Option
Default Value
Phase Reversal Alarm Enable
Bit 0 = Mains-I, Bit 1 = Mains-II
0 = Disable, 1 = Enable
0
Phase loss Alarm Enable
Bit 0 = Mains-I, Bit 1 = Mains-II
0 = Disable, 1 = Enable
0
Phase loss Alarm Time Delay
Phase loss Alarm Time Delay
0 to 9999(s)
10s
Table 4-20 Phase Reversal and Phase Loss Alarm Parameters
The logic diagrams of Phase Reversal and Phase Loss Alarm are illustrated in Figure 4-34 and Figure 4-
35, respectively. Please be informed that the Phase Reversal Alarm assumes that the “normal” Phase
Rotation is based on
Positive
or
Clockwise
rotation (ABC).
Figure 4-34 Phase Reversal Alarm Logic Diagram
Figure 4-35 Phase Loss Alarm Logic Diagram