User Manual - Rev AJ
California Instruments
9.4 Option –411: IEC 61000-4-11 Voltage Dips and Interruptions
9.4.1 General
The IEC 61000-4-11 option is capable of performing IEC 61000-4 section 11 voltage dips, short
interruptions and voltage variations immunity tests. On three phase MX Series AC sources, the
user can select one, two or all three phases to be active during the IEC 61000-4-11 tests in this
configuration.
9.4.2 Standard Revisions and EUT Classes
The–411 option supports both the first (1994-06) and the second edition (2004-03) of the IEC
61000-4-11 test standard as of firmware revision 0.31. Older firmware revisions only support the
first edition. Contact
for upgrade information. If Edition 2.0 is supported,
the standard revision
h
e M
pro
ont
panel, there is no nee
i
v
t tha
version of the standard.
Generic tests files are distributed with the MXGui program for both editions of the test standard.
Files applicable to Edition 2.0 have ED20 in their file name. Do not mix these files, as the data
setup will not be correct if you do. To load a test file, select the Mode (Dips or Vars) and test
st dard
rst, then
he File, Ope
enu to load
est parameters. T t
p
mete
a functio
the EUT clas
cover the various EUT classes. The relevant EUT class 1, 2, 3 or X is listed in the file names.
When using front panel operation, the user has to set levels for each individual test step in
S
LE
9.4.3 Initial Setu
can be selected w
d to select the rev
en using th
sion but data
XGui Windows
alues can be se
gram. From the fr
t support either
an
ara
re
fi
vision
can b
u
t
se
n of
n m
s. The different files provided with the program
the t
es
rs
e
ING
mode.
p
The user must set the operating frequency and voltage and close the output relay prior to the
start of test. It is possible to change the normal voltage (Ut) from the IEC1000-4-11 menus
before running each test.
9.4.4 Phase Selection
On three phase power source models, phase selection for individually executed dips or the
preset RUN AL
panel. The phase or
phases selected will be displayed in the upper right hand corner of the LCD as either A, B, C,
For Star (Wye) connected three-phase EUT’s,.voltage dips should be performed on both
individual Line-to-Neutral voltages as well as on all three Line-to-Line voltages. Thus, each test
should be run 6 times, each time selecting a different phase option: A, B, C, A+B, A+C and B+C.
For Delta connected three-phase EUT’s,.voltage dips, only Line-to-Line voltages dips have to be
run. Thus, each test can be run 3 times, each time selecting a different phase A+B, A+C and
B+C.
Note that the –411 option in MX Series AC sources with Firmware revision lower than 1.13 will
not support 2 phase out of 3 selections. MX Series I systems with firmware revision 1.17 or
higher and MX Series II systems with firmware revision 4.17 or higher support three phase dips
testing using the preferred method referenced in figure 4b) (A) of IEC 61000-4-11, Edition 2.0.
L selection can be made using the PHASE key on the front
AB, AC, BC or ABD.
With the introduction of Edition 2.0, three phase voltage dips testing has been redefined for both
Wye and Delta loads.
MX Series
205
