Data Logger - GE Feeder Management Relay 750 Instruction Manual

5.2 S1 RELAY SETUP
PATH: SETPOINTS S1 RELAY SETUP

DATA LOGGER

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5
The data logger feature samples and record up to eight (8) actual values at user-defined intervals. This recorded data may
be downloaded to the 750/760PC software for display and diagnostics. All data is stored in volatile RAM memory which
means that the information is lost when power to the relay is lost. Changing any setpoint affecting data logger operation
clears any data that is currently in the log.
The setpoint select the time interval to record the actual value data. This setpoint multiplied by the number of
SAMPLE RATE
samples to accumulate determines the duration of the data log record. For example, if the sample rate is 15 minutes and
continuous mode is enabled then the duration of the data log record is equal to 15 min × 4096 = 61440 min = 42 days.
There are two basic modes of operation defined by the
• Continuous Mode: Enabled by setting
the actual value(s) programmed and store them in the log. Up to 4096 data samples per channel will be recorded after
which the oldest data is replaced by newly sampled data.
• Trigger Mode: Enabled by setting
15 events are recorded, each in a separate buffer. The amount of pre-trigger data that to record is also selectable.
Before the trigger occurs, pre-trigger data is gathered as required. When the programmed trigger condition takes
place, data is collected until the buffer is filled, pre-trigger data collection begins in the next buffer and the relay then
waits for the next trigger. Once all buffers have been filled, the oldest data is overwritten when a new trigger occurs.
The
BUFFER ORGANIZATION
selects the number triggers stored and the samples per channel stored for each trigger. For example, "4 x 1024" indi-
TION
cates that the last three triggers with 1024 data samples per channel can be stored in memory. Note that one buffer must
5-12
Courtesy of NationalSwitchgear.com
DATA LOGGER
ð
ENTER SAMPLE RATE:
ESCAPE
1 cycle
CONTINUOUS MODE:
ESCAPE
MESSAGE Disabled
BUFFER ORGANIZATION:
ESCAPE
MESSAGE 16 x 256
TRIGGER POSITION:
ESCAPE
MESSAGE 25%
TRIGGER ON PICKUP:
ESCAPE
MESSAGE Enabled
TRIGGER ON DROPOUT:
ESCAPE
MESSAGE Enabled
TRIGGER ON TRIP:
ESCAPE
MESSAGE Enabled
TRIGGER ON ALARM:
ESCAPE
MESSAGE Enabled
TRIGGER ON CONTROL:
ESCAPE
MESSAGE Enabled
CHNL 1 SOURCE:
ESCAPE
MESSAGE Phase A Current
CHNL 2 SOURCE:
ESCAPE
MESSAGE Phase B Current
↓
CHNL 8 SOURCE:
ESCAPE
MESSAGE Frequency
CONTINUOUS MODE
CONTINUOUS MODE
CONTINUOUS MODE
and setpoints are only applicable in trigger mode. The
TRIGGER POSITION
750/760 Feeder Management Relay
Range: 1 cycle, 1 second, 1 min., 5 min., 10 min., 15
min., 20 min., 30 min., 60 min.
Range: Enabled, Disabled
Range: 2 x 2048, 4 x 1024, 8 x 512, 16 x 256
Seen only if
Range: 0 to 100% in steps of 1
Seen only if
Range: Enabled, Disabled
Seen only if
Range: Enabled, Disabled
Seen only if
Range: Enabled, Disabled
Seen only if
Range: Enabled, Disabled
Seen only if
Range: Enabled, Disabled
Seen only if
Range: Any values from Table 5–16: Analog Output
Parameters on page 5–87.
Range: Any values from Table 5–16: Analog Output
Parameters on page 5–87.
Range: Any values from Table 5–16: Analog Output
Parameters on page 5–87.
setpoint:
to "Enabled". At each sampling time the logger will record
to "Disabled". The programmed actual value(s) for up to the last
5 SETPOINTS
5.2.6 DATA LOGGER
CONTINUOUS MODE is "Disabled"
CONTINUOUS MODE is "Disabled"
CONTINUOUS MODE is "Disabled"
CONTINUOUS MODE is "Disabled"
CONTINUOUS MODE is "Disabled"
CONTINUOUS MODE is "Disabled"
CONTINUOUS MODE is "Disabled"
BUFFER ORGANZIA-
GE Multilin