Setting Up
CI-3K50601 Project 2191 DMR2731 Rev.1 18-08-11
19
Lights all LED segments so that display segments can be
checked.
Press
to exit.
Toggles display segments alternately.
Press
to exit.
Shows the voltage and current phase sequences.
Press
to exit.
4.
Press
to exit the selected test display mode.
5.
Press
again to return to the main Set-up menu.
For the voltage and current phase sequence test to operate reliably, voltage and current inputs
must be greater than 5% of nominal.
The Phase Sequence display shows the phase relationships of the supply voltages and currents.
To obtain correct power, voltage and current readings, the indicated phase sequences should be
‘123’.
To obtain sequence test indications, the measured phase relationships must be within the following
parameters.
Three-phase four-wire mode
Measurements are referenced from L1.
Voltage:
For the voltage sequence test, the phase of L2 relative to L1 must be within the window 240 +/-
48 degrees and L3 relative to L1 must be within the window 120 +/- 48 degrees to record the
sequence V123.
Alternatively, the phase of L2 relative to L1 must be within the window 120 +/- 48 degrees and
L3 relative to L1 must be within the window 240 +/- 48 degrees to record the sequence V132.
The display shows ‘V1--‘ if a voltage phase is outside these parameters.
Current:
For the current sequence test, the phase of I1 relative to L1 must be within the window 0 +/- 48
degrees and I2 relative to L1 must be within the window 240 +/- 48 degrees and I3 relative to
L1 must be within the window 120 +/- 48 degrees to record the sequence i123.
Alternatively the phase of I1 relative to L1 must be within the window 0 +/- 48 degrees and I2
relative to L1 must be within the window 120 +/- 48 degrees and I3 relative to L1 must be within
the window 240 +/- 48 degrees to record the sequence i132.
