Restrictions Of Measured Data - Mitsubishi EMU4-BM1-MB User Manual

8.2 Restrictions of measured data

Measurement and communication do not performed in a few seconds (about 10seconds) after the power loading to this device.
Measurement and communication do not performed in a few seconds after the configuration or the change of the rating to it.
Behaviors during operation are as follows.
Measured item
Current Current is 0A when input current is lower than cut-off setup value.
Voltage Indicate "0V" if RMS value is under 11V. (*1)
Power Indicate "0W", "0var" or "0VA" if indicated voltage values of all phases are 0V or indicated current values of them are 0A.
Reactive power
Apparent power
Power factor Indicate "100.0%" if indicated voltage values of all phases are 0V or indicated current values of them are 0A.
Frequency Voltage condition:
Indicate "0Hz" if voltage V12 (voltage V1N for 3P4W) is 0V.
Frequency condition:
Indicate "0Hz" if frequency is under 44.5Hz.
Indicate "0Hz" if frequency is over 99.9Hz.
RMS value of Voltage condition:
harmonic voltage Indicate "0V" at each phase if voltage is 0V.
Indicate "0V" at all phase if voltage V12 (voltage V1N for 3P4W) is 0V.
0V is displayed in each phases when displayed voltage is 0V.
Indicate "0.0V" at all phase if voltage V12 (voltage V1N for 3P4W) is 0V.
Frequency condition:
Indicate "0V" at all phases if frequency is under 44.5Hz.
Content rate of Voltage condition:
harmonic voltage Indicate "0V" at each phase if voltage is 0V.
(modulation Indicate "0%" at all phase if voltage V12 (voltage V1N for 3P4W) is 0V.
distortion) 0%V is displayed in each phases when displayed voltage is 0V.
Indicate "0.0%" at all phase if voltage V12 (voltage V1N for 3P4W) is 0V.
Frequency condition:
Indicate "0%" at all phases if frequency is under 44.5Hz.
RMS value of Current condition:
harmonic current Indicate "0A" at each phase if voltage is 0A. 0VAis displayed in each phases when displayed current is 0A.
Frequency condition:
Indicate "0A" at all phases if frequency is under 44.5Hz.
Voltage condition:
Indicate "0A" at all phase if voltage V12 (voltage V1N for 3P4W) is 0V.
Indicate "0.0%" at all phase if voltage V12 (voltage V1N for 3P4W) is 0V.
Content rate of Harmonic current condition:
harmonic current Indicate "0%" at each phase if harmonic current (total) is 0A. 0% is displayed in each phases when harmonics current is
(modulation 0A.
distortion)
Frequency condition:
Indicate "0%" at all phases if frequency is under 44.5Hz.
Voltage condition:
Indicate "0V" at all phase if voltage V12 (voltage V1N for 3P4W) is 0V.
Indicate "0.0%" at all phase if voltage V12 (voltage V1N for 3P4W) is 0V.
Pulse converted When use of upper / lower limit alarm = on and upper / lower limit alarm element = pulse count (upper limit), it is fixed to
value 999999 when 999999 have been exceeded.
When use of upper / lower limit alarm = OFF or upper / lower limit alarm element ≠ pulse count (upper limit), counting
restarts from 0 when 999999 have been exceeded.
Operating Indicate "999999h" if operating time is over 999999h.
time(*2)
Current Indicate "9999.99" if operating time is over 9999.99.
unbalance rate
Voltage Indicate "9999.99" if operating time is over 9999.99.
unbalance rate
*1: In single-phase, three-wire system, indicate "0V" if RMS value is under 22V.
*2: Operation time is reference value.
Supplement -------------------------------------------------------------------------------------------------------------------------------------------
 This unit takes a few seconds after change rating setup and the setup. While time measuring operation can't
conduct. ( MEA**. LED is turned off)
Please reference to

Behaviors of this unit and Indication of Small-size Display Unit
7.3.2 about restriction of measured data in simple measuring mode.
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