Et system LAB-SMS/E Series, Manual

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Sense Mode
ET System electronic GmbH 29
SENSE MODE
L
OAD CONNECTION WITHOUT
S
ENSOR
C
ONDUCTOR
Almost all our power supplies are provided with sensor conductor connectors to compensate the voltage drop on the
load. In case, these connectors are not in use, they must be short-circuited with correct polarity to the load outputs
and directly to the output connectors. By no means, current may flow over the sense connectors. In case of multiple
loads, the user has to provide a central load distribution point. To reduce peak loads and for an HF impedance termi-
nator, a 1-10 µF capacitor should be connected to the output.
If thus you paid attention to the points stated above, oscillation occurs through load or power induction and complex
load situations, please contact our company ET System.
L
OAD
D
ISTRIBUTION WITHOUT
S
ENSOR
C
ONDUCTOR
To ensure a proper use, a central load distribution situation is essential. Illustration 2 shows a correct load distribu-
tion. Illustration 1 shows an insufficient supply of load 2, load 3 etc. via parallel load conductors. In practice, it may
occur that an optimal distribution is not possible. Illustration 3 shows a mixed distribution, where at least the largest
consumers are supplied centrally.
L
OAD
C
ONNECTION WITH
S
ENSOR CONDUCTOR
The following points must be considered, when existing sense cables are connected directly to the load or to the cen-
tral load distribution point:

remove existing sense cable bridges from the power supply

directly c sense and - sense with correct polarity to the load distribution point

c sense and - sense conductors to a 1-47 µF capacitor

protect sense cable or at least twist + sense and - sense

select load line cross section, so that voltage drop is < 0.4 V

avoid overload of power supplies (voltage drop per line x current)
If thus you paid attention to the points stated above, oscillation occurs through load or power induction and complex
load situations, please contact our company ET System.