43
83503001 Rev G
3.9.7. Connecting Single Loads, Local Sensing (default).
Fig.3-11 shows recommended load and sensing connections for a single load. The
local sense lines shown are default connections at the rear panel J2 sense connector.
Local sensing is suitable for applications where load regulation is less critical.
-
-
Rem.sense
Local sense
Local sense
Rem.sense
+
+
Load lines, twisted
pair, shortest length
possible.
+V
-V
Load
+
Power
Supply
Fig. 3-11 Single Load Connection, Local Sensing
3.9.8. Connecting Single Loads, Remote Sensing
Fig.3-12 shows recommended remote sensing connection for single loads. Remote
sensing is used when, in Constant Voltage mode, the load regulation is important at the
load terminals. Use twisted or shielded wires to minimize noise pick-up. If shielded
wires are used, the shield should be connected to the ground at one point, either at the
power supply chassis or the load ground. The optimal point for the shield ground
should be determined by experimentation.
-
-
Rem.sense
Local sense
Local sense
Rem.sense
+
+
Sense lines. Twisted
pair or shielded.
+V
-V
Load
+
Power
Supply
Load lines. Twisted pair
shortest length possible.
Fig. 3-12: Remote Sensing, Single Load
3.9.9. Connecting Multiple Loads, Radial Distribution Method
Fig.3-13 shows multiple loads connected to one supply. Each load should be
connected to the power supply’s output terminals using separate pairs of wires. It is
recommended that each pair of wires will be as short as possible and twisted or
shielded to minimize noise pick-up and radiation. The sense wires should be connected
to the power supply output terminals or to the load with the most critical load regulation
requirement.
