6–24 PQMII POWER QUALITY METER – INSTRUCTION MANUAL
CHAPTER 6: MONITORING
• Van/Vbn/Vcn/Vab/Vbc MAX THD: These messages display the maximum total
harmonic value for each voltage input and the time and date of its occurrence. The
setpoint
S1 PQMII SETUP ÖØ CLEAR DATA \ÖØCLEAR MAX THD VALUES is used to clear this value.
Phase to neutral voltages will appear when the setpoint
S2 SYSTEM SETUP ÖØ CURRENT/
VOLTAGE CONFIGURATION ÖØ VT WIRING
is set to “Wye”. Line to line voltages will appear
when
VT WIRING is set to “Delta”.
6.4.3 Data Logger
PATH: ACTUAL VALUES Ö A3 POWER ANALYSIS ÖØ DATA LOGGER
These message display the current status of Data Loggers 1 and 2. The Data Logger can
be set up and run only from the EnerVista PQMII Setup Software. See 4.5.4 Data Logger and
7.6 Data Logger Implementation for additional details on the Data Logger feature.
It is possible to stop the data loggers from the PQMII front panel using the
S2 SYSTEM SETUP
ÖØ DATA LOGGER ÖØ STOP DATA LOGGER 1(2) setpoint.
6.4.4 Event Recorder
PATH: ACTUAL VALUES Ö A3 POWER ANALYSIS ÖØ EVENT RECORDER
The PQMII Event Recorder runs continuously and records the number, cause, time, date,
and metering quantities present at the occurrence of each event. This data is stored in
non-volatile memory and is not lost when power to the PQMII is removed. The Event
Recorder must be enabled in
S1 PQMII SETUP ÖØ EVENT RECORDER ÖØ EVENT RECORDER OPERATION.
The Event Recorder can be cleared in
S1 PQMII SETUP ÖØ CLEAR DATA ÖØ CLEAR EVENT RECORD.
Data for the 150 most recent events is stored. Event data for older events is lost. Note that
the event number, cause, time, and date is available in the messages as shown in the
following table, but the associated metering data is available only via serial
communications.
Note
The event data stored for POWER OFF events does not reflect values at the time of
power-off.
These messages display the 150 most recent events recorded by the event recorder. The
list of possible events and their display on the PQMII is shown below.
DATA LOGGER [Z] DATA LOG 1: STOPPED:
0% FULL
MESSAGE
DATA LOG 2: STOPPED:
0% FULL
EVENT RECORDER [Z] 3: POWER ON
12:00:00am 01/01/03
MESSAGE
2: POWER OFF
12:00:00am 01/01/03
MESSAGE
1: CLEAR RECORDS
12:00:00am 01/01/03
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