EM TEST
UCS 500 Series
Operating Manual
V 3.05
6 / 57
3.2.
Rear view
1
Test supply input; channel PF1 together with
the red lamp for phase indication
2
Test supply input; channel PF2 together with
the red lamp for phase indication
3
Test supply input neutral
4
Test supply input PE
5
Sync input
6
Reference earth connection
7
HV output for Surge pulse
8
Common output for Surge pulse
1
Test supply PF1
The phase of the power supply for the EUT is connected to the banana connector PF1. The phase L is
conducted to the EUT voltage supply via PF1 if channel PF1 is selected in the set-up menu.
To guarantee a correct function of the synchronization the phase shall be connected to this input. The red lamp
than shall be alighted
2
Test supply PF2
The phase of the power supply for the EUT is connected to the banana connector PF2. This input is generally
used for voltage dip testing as per IEC 61000-4-11. At this input the reduced dip voltage is applied The phase L
is conducted to the EUT voltage supply via PF2 if channel PF2 is selected in the set-up menu. Normally a variac
is connected to PF2, e.g., 0-250V. A motor driven variac can be controlled via a 0-10V analogue control output.
To guarantee a correct function of the synchronization the phase shall be connected to this input. The red lamp
than shall be alighted
3
Test supply neutral ( PF1/PF2 )
The neutral line of the power supply for the EUT is connected to the banana connector N
4
Test supply PE ( PF1/PF2 )
The protective earth line of the power supply for the EUT is connected to the banana connector PE
5
SYNC input
An ac voltage to which the events shall be synchronized is connected to this input. If no voltage is available the
tests are started automatically in asynchronous mode. Normally this input shall be connected directly to L of the
channel PF1. The maximum input voltage is 250Vac
6
Reference earth connection
The generator has to be connected to the reference earth plane of the test set up. The connection at the rear
part of the generator is an alternative to the grounding point at the front panel
Connection EUT supply
The EUT power supply is normally connected to
the UCS plugs PF1, N and PE
A tap of a motor variac or adapting transformer for
power fail testing is connected to the connection
PF2.
The phase synchronisation SYNC must be
connected to PF1. By missing this connection all
tests runs in asynchronous mede with no phase
angle adjust for pulse release.
The earth bolt must be connected to the ground
reference.
