GE Feeder Management Relay 750 Instruction Manual

5-12 750/760 Feeder Management Relay GE Multilin5.2 S1 RELAY SETUP 5 SETPOINTS55.2.6 DATA LOGGERPATH: SETPOINTS Ö S1 RELAY SETUP ÖØ DATA LOGGERThe data logger feature samples and record up to eight (8) actual values at user-defined intervals. This recorded data maybe downloaded to the 750/760PC software for display and diagnostics. All data is stored in volatile RAM memory whichmeans that the information is lost when power to the relay is lost. Changing any setpoint affecting data logger operationclears any data that is currently in the log.The SAMPLE RATE setpoint select the time interval to record the actual value data. This setpoint multiplied by the number ofsamples to accumulate determines the duration of the data log record. For example, if the sample rate is 15 minutes andcontinuous 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 setpoint:• Continuous Mode: Enabled by setting CONTINUOUS MODE to "Enabled". At each sampling time the logger will recordthe actual value(s) programmed and store them in the log. Up to 4096 data samples per channel will be recorded afterwhich the oldest data is replaced by newly sampled data.• Trigger Mode: Enabled by setting CONTINUOUS MODE to "Disabled". The programmed actual value(s) for up to the last15 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 takesplace, data is collected until the buffer is filled, pre-trigger data collection begins in the next buffer and the relay thenwaits for the next trigger. Once all buffers have been filled, the oldest data is overwritten when a new trigger occurs.The BUFFER ORGANIZATION and TRIGGER POSITION setpoints are only applicable in trigger mode. The BUFFER ORGANZIA-TION selects the number triggers stored and the samples per channel stored for each trigger. For example, "4 x 1024" indi-cates that the last three triggers with 1024 data samples per channel can be stored in memory. Note that one buffer must DATA LOGGER [ENTER] for moreSAMPLE RATE:1 cycleRange: 1 cycle, 1 second, 1 min., 5 min., 10 min., 15min., 20 min., 30 min., 60 min.CONTINUOUS MODE:DisabledRange: Enabled, DisabledBUFFER ORGANIZATION:16 x 256Range: 2 x 2048, 4 x 1024, 8 x 512, 16 x 256Seen only if CONTINUOUS MODE is "Disabled"TRIGGER POSITION:25%Range: 0 to 100% in steps of 1Seen only if CONTINUOUS MODE is "Disabled"TRIGGER ON PICKUP:EnabledRange: Enabled, DisabledSeen only if CONTINUOUS MODE is "Disabled"TRIGGER ON DROPOUT:EnabledRange: Enabled, DisabledSeen only if CONTINUOUS MODE is "Disabled"TRIGGER ON TRIP:EnabledRange: Enabled, DisabledSeen only if CONTINUOUS MODE is "Disabled"TRIGGER ON ALARM:EnabledRange: Enabled, DisabledSeen only if CONTINUOUS MODE is "Disabled"TRIGGER ON CONTROL:EnabledRange: Enabled, DisabledSeen only if CONTINUOUS MODE is "Disabled"CHNL 1 SOURCE:Phase A CurrentRange: Any values from Table 5–16: Analog OutputParameters on page 5–87.CHNL 2 SOURCE:Phase B CurrentRange: Any values from Table 5–16: Analog OutputParameters on page 5–87.↓CHNL 8 SOURCE:FrequencyRange: Any values from Table 5–16: Analog OutputParameters on page 5–87.ENTERESCAPEð ðMESSAGEESCAPEMESSAGEESCAPEMESSAGEESCAPEMESSAGEESCAPEMESSAGEESCAPEMESSAGEESCAPEMESSAGEESCAPEMESSAGEESCAPEMESSAGEESCAPEMESSAGEESCAPEMESSAGEESCAPE