Chapter 7—Logging

63230-300-212

Min/Max Logs

April 2001

 

 

MIN/MAX LOGS

Min/Max Log

Interval Min/Max/Average Log

There are two Min/Max logs:

Min/Max log

Interval Min/Max/Average log

When any real-time reading reaches its highest or lowest value, the circuit monitor saves the value in the Min/Max log.You can use SMS to view and reset this log. For instructions, refer to the SMS online help. You can also view the min/max values from the display. From the Main Menu, select Min/Max and then select the value you’d like to view, such as amperes, volts, or frequency. See “Viewing Minimum and Maximum Values from the Min/Max Menu” on page 39 in this manual for detailed instructions. The Min/Max log cannot be customized.

In addition to the Min/Max log, the circuit monitor has a Min/Max/Average log. The Min/Max/Average log stores 23 quantities, which are listed below. At each interval, the circuit monitor records a minimum, a maximum, and an average value for each quantity. It also records the date and time for each interval along with the date and time for each minimum and maximum value within the interval. For example, every hour the default log will log the minimum voltage for phase A over the last hour, the maximum voltage for phase A over the last hour, and the average voltage for phase A over the last hour. All 23 values are preconfigured with a default interval of 60 minutes, but you can reset the interval from 1 to 1440 minutes. To setup, view, and reset the Min/Max/Average log using SMS, see ”Reading and Writing Registers” in the SMS online help. The following values are logged into the Min/Max/ Average log:

Voltage Phase A–B

Voltage Phase B–C

Voltage Phase C–A

Voltage N–G

Current Phase A

Current Phase B

Current Phase C

Current Phase N

Current Phase G

kW 3-Phase Average

kVAR 3-Phase Average

kVA 3-Phase Average

kW Demand 3-Phase Average

kVAR Demand 3-Phase Average

kVA Demand 3-Phase Average

THD Voltage A–N

THD Voltage B–N

THD Voltage C–N

THD Voltage A–B

THD Voltage B–C

THD Voltage C–A

True Power Factor 3-Phase Total

Displacement Power Factor 3-Phase Total

102

© 2001 Schneider Electric All Rights Reserved

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Schneider Electric 4000 MIN/MAX Logs, Min/Max Log Interval Min/Max/Average Log, Logging 63230-300-212 Min/Max Logs April