Haefely Technology AXOS5 - 9 Voltage Dips & Interrupts; General Information; Interrupts; Dips

26 AXOS
5
Compact immunity test System
9 Voltage dips & interrupts
9.1 General information
For the voltage dips & interrupts only the EUT will be only connected through the output (L, N, PE) in the front view.
The EUT Supply Input (L, N, PE) in the rear view gets connected to the power supply. For verification of the signal,
Pos.4 and Pos.5 in Figure 5-1 can be connected to the oscilloscope. Only these five outputs in Figure 5-1 can be used,
when applying or verifying voltage dips & Interrupts at the EUT. Further adjustments of the operation menu will be
described in the following under captures.
9.2 Interrupts
Only the voltage interrupts it is possible to create without an external transformer. To create those interrupts there must
be a connection between V dip and N via banana plug, as seen in Figure 9-1. Additionally, an external powers supply
source has to be connected to EUT supply Input. Afterwards it can be selected between pre-compliance mode and
standard operating menu. The entering of “duration”, “interval”, “test time”, “synchronization” via touch screen by
pressing each specific function (Figure 9-3). When pushing the function name a purple bow opens up and defines the
parameter in the graphic. After successfully selecting the key parameter, the “start” button can be pushed and the
parameter gets applied.
Figure 9-1: Voltage interrupts electrical installation
9.3 Dips
To create the Voltage dips an external transformer is necessary, because a second voltage level is required. When
purchasing the DIP 116 from the HAEFELY TEST AG the position 5 at the rear view graphic can be used. The Figure
9-2 gets displayed when DIP 116 is successfully connected. Exact hardware configuration of DIP 116 is described in
capture 9.3.1. Fully compatibility is guaranteed with the AXOS
5
.
Figure 9-2: DIP 116 Transformer connected
Only in this case the V dip voltage can be proportionally controlled regarding to the U1 nominal voltage via the touch
screen or via remote software. Moreover all other adjustments are compatible with the AXOS
5
. Reference voltage
according to the U1 nominal can be selected. V dip can either be 0%, 40%, 70% or 80% in reference to U1 nominal,