Multiple Load Connection With Distribution Terminals; Grounding Outputs - Delta D750 User Manual

User Manual
D750
DC Power Supply

2.8.9 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.2-
5). If remote sensing is required, the sensing wires should be connected to the distribution
terminals or at the most critical load.
Power
Supply

2.8.10 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.
There is a potential shock hazard at the RS232/485 and the IEEE ports when
using power supplies with rated or combined voltage greater than 400V with the
Positive Output of the power supplies is grounded. Do not connect the Positive
Output to ground when using the RS232/485 or IEEE under the above conditions.
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+V
- V
-Rem.sense
-Local sense
+Local sense
+Rem.sense
Fig.2-5: Multiple loads connection with distribution terminal
Rated Output shall not float outputs more than +/-600VDC
above/below chassis ground.
OUTPUT TERMINAL GROUNDING
Distribution terminal
+V
- V
WARNING
Models > 60VDC
WARNING
!
+
Load#1
-
+
Load#2
-
+
Load#3
-