User`s manual

RX3i Power Sync and Measurement System 5
GFK-2748
Configuration
The PSM module is configured using the Proficy Machine Edition programming software, version 7.50 or later.
Configuration parameters are used to set nominal values for Grid1 and Grid2 voltage, current and frequency, and to calibrate
the PSM system for specific Potential Transformer and Current Transformer gains, increasing the accuracy of the measured
values. Configuration parameters are also used to set ANSI device threshold and delay values.
A Mode Control register, consisting of 32 bits in %Q memory, selects operational and measurement modes. This application
must apply initial values to these bits and can change them while the PSM is running.
The application can change a single configuration parameter in run mode by modifying the two-word Parameter Write register
in %AQ memory.
Mode Control Bits
The RX3i CPU sends 32 %Q bits of Mode Control data to the PSM module every sweep. The application logic must apply
initial values to these bits on the first RX3i scan. The application can change these settings during operation to modify
measurement modes in response to changing conditions.
%Q Bit
Offset
Function
1
GRID 1 Operation: 0 = disabled, 1 = enabled
If disabled, the PSM system does no measurements for the GRID 1 power grid.
Note: Both grids (bits Q1 and Q17) must be enabled in order for the PSM module to act as a grid
synchronizer.
2
GRID 1 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.
Do not change this value in run mode.
3
GRID 1 Grid Operational Mode: 0 = single phase, 1 = three-phase
4
GRID 1 Connection mode.
Works with the Operational Mode setting to determine system type.
• For single phase mode: 0 = Three single phases
1 = Three-wire, single phase (120/240) using PTA and PTB
• For three-phase mode: 0 = WYE, 1 = DELTA
5
GRID 1 PTA_CA measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables in the PACSystems RX3i Power Sync and Measurement System User's
Manual, GFK-2749.”
6
GRID 1 CTA measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
7
GRID 1 PTB measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
8
GRID 1 CTB measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables in GFK-2749.”
9
GRID 1 PTC measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
10
GRID 1 CTC measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
11
GRID 1 CTN measurement: 0 = not measured, 1 = measured
Refer to “Reconstructed Variables” in GFK-2749.
12
GRID 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.