User`s manual
8 RX3i Power Sync and Measurement System
GFK-2748
%I Bit Offset
Value
57
GRID 1 VIImbalanceAlarm: 0 = OK, 1 = ANSI 60 Alarm
58
GRID 1 UnderFreqAlarm: 0 = OK, 1 = ANSI 81U Alarm
59
GRID 1 OverFreqAlarm: 0 = OK, 1 = ANSI 81O Alarm
60 - 64
Reserved
65
GRID 2 ClampedFreq: 0 = OK, 1 = Line Frequency outside the range (40 - 70 Hz)
66
GRID 2 ClampedInput: 0 = OK, 1 = some inputs have signal clamped
67
GRID 2 MixedPolarity: 0 = OK, 1 = At least one phase PT/CT has wrong polarity
68
GRID 2 NegSeqAlarm: 0 = OK, 1 = ANSI 46 Alarm
69
GRID 2 UnderVoltAlarm: 0 = OK, 1 = ANSI 27 Alarm
70
GRID 2 ReversPwrAlarm: 0 = OK, 1 = ANSI 32 Alarm
71
GRID 2 OverCurrAlarm: 0 = OK, 1 = ANSI 50 Alarm
72
GRID 2 OverVoltAlarm: 0 = OK, 1 = ANSI 59 Alarm
73
GRID 2 VIImbalanceAlarm: 0 = OK, 1 = ANSI 60 Alarm
74
GRID 2 UnderFreqAlarm: 0 = OK, 1 = ANSI 81U Alarm
75
GRID 2 OverFreqAlarm: 0 = OK, 1 = ANSI 81O Alarm
76 – 80
Reserved
LEDs
LED
State
Definition
RUN
Green
The module is operating correctly and communicating with the RX3i.
Red
The module is operating without backplane communication.
Off
The module is not operating.
FLT
Green, blinking
During the period when GREEN is ON, Grid 1 can be connected to Grid 2.
Green, steady
Grid 1 and Grid 2 are connected.
Red
The module has detected a fault condition.
Off
The module has not detected a fault and the grids are not synchronized.
GRID 1
Green
Indicates a voltage signal has been detected on Grid 1.
Red
A frequency out-of-range condition has been detected on Grid 1.
Off
No zero crossing signal of Grid 1 has been detected during the last 250 ms
time period.
GRID 2
Green
Indicates a voltage signal has been detected on Grid 2
Red
A frequency out-of-range condition has been detected on Grid 2.
Off
No zero crossing signal of Grid 2 has been detected during the last 250 ms
time period.