3.7.4 Single load connection, Remote Sensing
3.7.5 Multiple load connections, radial distribution method
Remote Sensing is used in cases where, 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 the power supply chassis or the load
ground. The optimal point for the shield ground should be determined by experimentation. At Remote
Sensing, the maximum voltage drop allowed at the load wires is 0.5V per wire.
In cases of 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.
Fig. 3-2: Remote Sensing, single load.
Fig. 3-3: Multiple load connections with distribution terminal
2
2
- LS
- LS
+ S
- V
- S
- S
+LS
+LS
+S
+S
On/Off
On/Off
+ V
- S
COM
COM
Output Good
Output Good
P
P
VRFV
VRFV
VCVP
VCVP
VRFI
VRFI
VCCP
VCCP
RCVP
RCVP
EXTERNAL CONTROL
CONNECTOR
(ZUP rear panel view)
EXTERNAL CONTROL
CONNECTOR
(ZUP rear panel view)
LOAD
LOAD #1
LOAD #2
LOAD #3
POWER
SUPPLY
POWER
SUPPLY
To Load Terminals
Shield
+
+
+
+
_
_
_
_
RCCP
RCCP
1
1
+S
- V
+LS
- LS
+V
- S
15
