Motor Start Statistics - GE MI-869 Instruction Manual

MOTOR START STATISTICS

Motor Start Statistics
Learned Data
NOTE:
7–4
Path: Records > Motor Start Statistics 1(5)
START DATE/TIME
Range: mm/dd/yy and hh:mm:ss
Default: 01/01/08 and 00:00:00
START ACCELERATION TIME
Range: 0.000 to 250.000 s in steps of 0.001Default: 0.000 s
START EFFECTIVE CURRENT
Range: 0.00 to 20.00 x FLA in steps of 0.01Default: 0.00 x FLA
START PEAK CURRENT
Range: 0.00 to 20.00 x FLA in steps of 0.01Default: 0.00 x FLA
Up to five starts are reported. When the buffer is full the newest record overwrites the
oldest one.
The 869 measures and records individual data records, as indicated below, all from actual
motor operation. The latest individual data record "set" can be viewed using the Learned
Data feature on the relay. The data, when input cumulatively to the Learned Data Recorder
(see below) can be used to evaluate changes/trends over time. Note that learned values
are calculated even when features requiring them are disabled.
The Learned Data recorder measures and records up to 250 data record "sets," all from
actual motor operation. The data can be used to evaluate changes/trends over time. All
available stored motor learned data records can only be retrieved using EnerVista 8 Series
Setup program from Records > Learned Data Records menu
Clearing learned data (RECORDS > CLEAR RECORDS > LEARNED DATA) resets all these
values to their minimum values and clears the stored file. The date and time is recorded
when clearing. An event 'Clear Learned Rec' is sent to the Event Record. The next record is
be captured after N successful starts.
Each of the learned features discussed below must not be used until at least N successful
motor starts and stops have occurred, where N is defined by the setting in SETPOINTS >
SYSTEM > MOTOR > NUMBER OF STARTS TO LEARN.
The last stored Motor Learned Data records can be viewed from the following menu.
Path:
Records > Learned Data
RECORDS SINCE CLEAR
This value shows the number of records since the last clearance.
LAST CLEAR DATE/TIME
Range: MM/DD/YY HH:MM:SS
This value is the date and time on which the record was cleared.
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 7: RECORDS