Psm Module - GE PACSystems RX3i User Manual

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PSM Module

1-2
In addition to configuring the PSM module upon project
download from PME, the RX3i CPU can control the PSM module
by updating configuration data from the RX3i in the form of %AQ
data words and %Q mode control bits during each sweep.
The PSM module provides calculated data to the CPU in the
form of %AI data words and %I status bits each sweep. The
information sent by the PSM module includes power system
measurements and discrete fault status.
Connectors
The PSM module provides two Mini-D 20-pin connectors that
accept the GRID 1 and GRID 2 voltage and current signals from
the Terminal Assembly.
Indicators
Four LEDs provide status indications for the PSM system.
RUN Green
Red
Off
FLT Green,
blinking
Green,
steady
Red
Off
GRID 1
Green
Red
Off
GRID 2 Green
Red
Off
PACSystems* RX3i Power Sync and Measurement System – February 2013
The module is operating correctly and
communicating with the RX3i.
The module is operating without
backplane communication.
The module is not operating.
During the period when GREEN is ON,
Grid 2 can be connected to Grid 1.
Grid 1 and Grid 2 can be connected and
there are no faults.
The module has detected a fault
condition.
The module has not detected a fault and
the grids are not synchronized.
Indicates a voltage signal has been
detected on Grid 1.
A frequency out-of-range condition has
been detected on Grid 1.
No zero crossing signal of Grid 1 has
been detected during the last 250 ms
time period.
Indicates a voltage signal has been
detected on Grid 2
A frequency out-of-range condition has
been detected on Grid 2.
No zero crossing signal of Grid 2 has
been detected during the last 250 ms
time period.
RUN FLT
GRID 1 2
PSM001
CAL
GRID 1
CAL
GRID 2
GFK-2749