Data Logging Functions - Eaton Cutler-Hammer FP-5000 Instructions Manual

IL17569
The OSC Trigger describes the events that can cause a trigger of
the waveform capture. Each event is described as:
• Trip 1 relay closing – this is by default and cannot be turned off.
• Trip 2 relay closing.
• dV/dI disturbance detection – All eight voltage and current inputs
are converted to real and imaginary phasor quantity each cycle. If
the latest cycle real or imaginary phasor quantity has changed +
12.5% from the previous cycle value, and if a voltage value is
greater than 5 volts or if a current value is greater than .5 per unit
than a waveform trigger occurs.
• Logic LG6 – Logic Gate 6 (See Section 9 Programmable Logic,
and Section 5 Table 5.7 for LG6 programming) is used to cause a
waveform trigger. This logic gate can be used to trigger on any
combination of trip, pickup and alarm events. It is a powerful
selection tool to make sure that only the waveforms needed are
captured.
• Cntrl PB – This enables a waveform trigger from the front face-
plate of the FP-5000. The menu selection can be found by
pressing the "Status/Control" button, selecting control and
pressing enter, selecting "Trig Waveform Capt" and pressing enter,
and pressing enter a second time. This trigger is useful to test the
waveform capture system.
• Comm – This enables waveform triggering through external
communication means.
Each trigger described above can be set to one of three settings:
Disable, Overwrite and Lock. If programmed as "Disable" then the
waveform trigger cannot occur. If programmed as "Overwrite" or
"Lock", when the trigger event occurs, a new waveform will be
captured if space is available. The FP-5000 will use the pro-
grammed number of record space (16, 8 or 4 records) in the
following order:
1. If a waveform record space is empty it will be used. A space is
empty when no waveform has ever been written to it or the
previous waveform was cleared after being downloaded over the
communication channel.
2. If a waveform record was recorded with an "Overwrite" trigger
then the oldest overwrite record will be written over.
3. If a waveform record has been recorded due to a "Lock" trigger
event then no other waveform capture can overwrite this record
until it has been downloaded over the communications channel.
The Trip 1 event is always a "Lock" trigger.
If all the previously recorded waveforms are locked then the new
waveform capture is lost. All new capture will be lost until wave-
forms are downloaded.

8.11 Data Logging Functions

The FP-5000 can capture selected measured data at selected
periodic intervals of time. This function is useful to capture
trends over longer periods of time. Up to 1024 sets of measured
data can be recorded. The logged data can be viewed using
the Cutler-Hammer PowerNet software package equipped with the
NPMONITOR component. Eight different measured data param-
eters will be recorded at the programmed interval.
Table 8.8 lists the setpoints used for setting up the data
logging function.
Effective June, 2001
Table 8.8 Data Logging Setpoints
Parameter Range
Mode Cont., 1-Pass
Trigger Auto, Manual
Interval(s) 1-3600
Value 1 – See text
Value 8 description below
The Mode setpoint will determine if the recording of data wraps
around to the oldest recorded values or stops recording after all
1024 data records are taken. If the setpoint is Cont the data wraps
around and is continuously recorded. If the setpoint is 1-Pass then
the data is recorded 1024 times at the programmed interval and
then stops.
The Trigger setpoint determines what will start the data logging
process. If set to Auto then upon saving and exiting the program
mode the data logging will begin. If Manual is selected then any one
of the following events will cause the data logging function to start:
• Contact Input – One of the contact inputs can be configured to
Data log Trigger, when this input becomes true the data logging
function is started.
• Control Pushbutton – A data logging function is started from the
FP-5000 front faceplate. This can be accomplished by pushing the
"Status/Control" button, selecting Control and pressing enter,
selecting Trigger Datalogger and pressing enter, and pressing
enter a second time. This function is useful for testing the data
logging function.
• Communication Channel – Using external communications
channel to initiate the data logging function.
The Interval setpoint determines how often data will be recorded.
This parameter along with the knowledge that the data will be
sampled a maximum of 1024 times sets the period of time that the
logging will take place without loss of information. If set to 1 second,
the total time of recording of data without loss is 17 minutes and 4
seconds. If set to 3600 seconds, the total time of recording of data
without loss is 42 days, 16 hours.
The Value setpoints, eight in all, describe what data values are
recorded at each interval. Eight data measurements can be
selected from the following:
• All current inputs (IA, IB, IC, IX, IR, Iavg).
• All current sequential components (I0, I1, I2).
• All phase current demand (IA Demand, IB Demand, IC Demand).
• All phase current Total Harmonic Distortion (IA THD, IB THD, IC
THD).
• All Wye voltage inputs (VA, VB, VC, VLNavg,). Use only if voltage
connection is Wye.
• All phase-to-phase voltage inputs (VAB, VBC, VCA, VLLavg).
• Auxiliary voltage (VX).
• All voltage sequential components (V0, V1, V2).
• All Wye voltage Total Harmonic Distortion (VA THD, VB THD, VC
THD). Use only if voltage connection is Wye.
• All Delta Voltage Total Harmonic Distortion (VAB THD, VBC THD,
VCA THD). Use only if voltage connection is Delta.
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