User`s manual
6 RX3i Power Sync and Measurement System
GFK-2748
%Q Bit
Offset
Function
13
GRID 1 Delta Mode: 0 = otherwise B phase is common, 1= with C phase common
This bit must be set to 0 if the phase B is used as the common connection for the other two voltages (North
American standard). If the phase C is used as the common in a Delta connection, this bit must be set to 1.
14
Reserved
15
GRID 1 Energy reset: When set, the accumulated energy for Grid 1 is reset and held at 0 Wh. When
cleared, the Grid 1 energy value represents the accumulated energy in Watt-Hours since power-up, or the
last reset.
16
Relay open: Works with bit 32 to control the Sync Relay operation.
For more information, see “Relay Open/Relay Close Operation” in GFK-2749.
17
GRID 2 Operation: 0 = disabled, 1 = enabled
If disabled, the PSM system does no measurements for the GRID 2 power grid.
Note: Both grids (bits Q1 and Q17) must be enabled in order for the PSM module to act as a grid
synchronizer.
18
GRID 2 Voltage selection:
0 = low voltage range (120VAC), 1 = high voltage range (600VAC)
Caution: The voltage range is determined by the physical connections in the system. Changing
this bit to a value that does not match the physical configuration will result in erroneous
power system measurements.
19
GRID 2 Grid Operational mode: 0 = single phase, 1 = three-phase
20
GRID 2 Connection mode:
Works with the Operational mode setting to determine system type.
• For single phase mode: 0 = 3 single phases ,
1 = 3-wire single phase using PTA and PTB
• For 3-phase mode: 0 = WYE, 1 = DELTA
21
GRID 2 PTA_CA measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
22
GRID 2 CTA measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
23
GRID 2 PTB measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
24
GRID 2 CTB measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
25
GRID 2 PTC measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
26
GRID 2 CTC measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
27
GRID 2 CTN measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” ” in GFK-2749.
28
GRID 2 1 Waveform Capture: changing from 0 to 1
When the PSM detects a change of this bit from a zero to one, it captures all 128 samples of all seven
variables belonging to the grid.
29
GRID 2 Delta Mode: 0 = B phase is common, 1=C phase common
This bit must be set to 0 if the phase B is used as the common connection for the other two voltages (North
American standard). If the phase C is used in a Delta connection, this bit must be set to 1.
30
Reserved
31
GRID 2 Energy reset: When set, the accumulated energy for Grid 2 is reset and held at 0 Wh. When
cleared, the Grid 2 energy value represents the accumulated energy in Watt-Hours since power-up, or the
last reset.
32
Relay close: Works with bit 16 to control the Sync Relay operation.
For more information, see “Relay Open/Relay Close Operation” in GFK-2749.