EM TEST
UCS 500 Series
Operating Manual
V 5.40
12 / 99
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
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
This input is generally used for the reduced dip voltage for testing as per IEC 61000-4-11. At this PF2 input a
variac transformer is connected with a reduced voltage, e.g., 0-250V. A motor driven variac transformer 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. Umax. Sync = Umax. EUT
Connection EUT supply
AC Supply
The EUT power supply is normally connected to
the UCS plugs PF1, N and PE
A tap of a motor variac transformer or adapting
transformer for power fail testing is connected to
the connection PF2.
The phase synchronization SYNC must be
connected to PF1. By missing this connection all
tests runs in asynchronous mode with no phase
angle adjust for pulse release.
DC Supply
DC+
to PF1, and PF2 for DIPS
DC-
to N
additional PE (depends application)
Earth bolt
The earth bolt must be connected to the ground
reference.