Analog Input / Input Change (Objects 30/32 - GE 489 Communications Manual

Generator management relay
Hide thumbs Also See for 489:
Table of Contents

Advertisement

Note
CG.5.4 Analog Input / Input Change (Objects 30/32)
66
INDEX
ROLLOVER
POINT
20
50000
21
50000
22
50000
23
50000
24
50000
25
50000
26
50000
27
50000
28
50000
29
50000
30
50000
31
50000
32
50000
33
50000
34
50000
35
50000
36
50000
37
50000
38
50000
The counters cannot be cleared with the Freeze/Clear function codes (9/10). Instead, the
control relay output block points can be used to clear groups of counters. There is only one
copy of each counter, so clearing a counter via Modbus or the front panel display causes
the corresponding DNP counter point to be cleared and vice-versa.
In the following table, the Format column indicates that the associated data point format is
determined by the entry in Data Formats on page CG–42. For example, an "F1" format is
described in that table as a (16-bit) unsigned value without any decimal places. Therefore,
the value read should be interpreted in this manner. Many of the values reported by the
489 have a size of 32-bits and have had their upper and lower 16-bit components assigned
to separate points. Where indicated, refer to the appropriate note following the table for
more detail.
Table CG–7: Counters Point List
DESCRIPTION
Number of Reactive Power Trips
Number of Reverse Power Trips
Number of Underpower Trips
Number of Stator RTD Trips
Number of Bearing RTD Trips
Number of Other RTD Trips
Number of Ambient RTD Trips
Number of Thermal Model Trips
Number of Inadvertent Energization Trips
Number of Analog Input 1 Trips
Number of Analog Input 2 Trips
Number of Analog Input 3 Trips
Number of Analog Input 4 Trips
Number of Loss of Excitation Circle 1 Trips
Number of Loss of Excitation Circle 2 Trips
Number of Ground Directional Trips
Number of High Set Phase Overcurrent Trips
Number of Distance Zone 1 Trips
Number of Distance Zone 2 Trips
489 GENERATOR MANAGEMENT RELAY – COMMUNICATIONS GUIDE

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents