TDK-Lambda Z+ series - Multiple Load Connection with Distribution Terminals; Grounding Outputs

38
3.9.10 Multiple Load Connection with Distribution Terminals
If remotely located output distribution terminals are used, the power supply output terminals
should be connected to the distribution terminals by a pair of twisted and/or shielded wires. Each
load should be separately connected to the remote distribution terminals (see Fig.3-9).
If remote sensing is required, the sensing wires should be connected to the distribution terminals
or at the most critical load.
3.9.11 Grounding Outputs
Either the positive or negative output terminals can be grounded. To avoid noise problems caused
by common-mode current flowing from the load to ground, it is recommended to ground the
output terminal as close as possible to the power supply chassis ground.
Always use two wires to connect the load to the power supply regardless of how the system is
grounded.
Load lines, twisted pair, shortest length possible.
Fig.3-8: Multiple loads connection, radial distribution, local sense
Load#1
Power
Supply
+V
-V
-Rem. sense
-Local sense
+Rem. sense
+Local sense
+
-
Load#2
+
-
Load#3
+
-
Fig.3-9: Multiple loads connection with distribution terminal
Load#1
Power
Supply
+V
-V
-Rem. sense
-Local sense
+Rem. sense
+Local sense
+
-
Load#2
+
-
Load#3
+
-
+V
-V
Distribution terminal
WARNING:
Models up to 100VDC Rated Output shall not float outputs more than +/-100VDC above/below
chassis ground.
WARNUNG:
Bei Modellen bis 100VDC Nennausgangsspannung darf der Potentialunterschied zwischen Ausgang
und Gehäuse-Erdung nicht mehr als +/-100VDC betragen.