24
-
-
Rem.sense
Local sense
Local sense
Rem.sense
+
+
Load lines, twisted pair,
shortest length possible.
+V
-V
Load#1
+
-
Load#3
+
-
Load#2
+
-
Power
Supply
Fig.3-12: Multiple loads connection, radial distribution, local sense
-
-
Rem.sense
Local sense
Local sense
Rem.sense
+
+
Distribution terminal
+V
+V
-V
-V
Load#1
+
-
Load#3
+
-
Load#2
+
-
Power
Supply
Fig.3-13: Multiple loads connection with distribution terminal
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.3-13).
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.
WARNING
Models up to 60VDC Rated Output shall not float outputs more
than +/-60VDC above/below chassis ground. Models > 60VDC
Rated Output shall not float outputs more than +/-600VDC
above/below chassis ground.
25
WARNING
OUTPUT TERMINAL GROUNDING
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.
3.10 LOCAL AND REMOTE SENSING
The rear panel J2 sense connector is used to
configure
the power supply for local or remote
sensing of the output voltage. Refer to Fig.3-14 for sense connector location.
WARNING
There is a potential shock hazard at the sense connector when using a power
supply with a rated output voltage greater than 40V. Local sense and remote
sense wires should have a minimum insulation rating equivalent or greater than
the maximum output voltage of the power supply. Ensure that the connections at
the load end are shielded to prevent accidental contact with hazardous voltages.
3.10.2 Local sensing
The power supply is shipped with the rear panel J2 sense connector wired for local sensing of the
output voltage. See Table 3-4 for J2 terminals assignment. With local sensing , the output voltage
regulation is made at the output terminals. This method does not compensate for voltage drop on
the load wires, therefore it is recommended only for low load current applications or where the load
regulation is less critical.
3.10.1 Sense wiring
Table 3-4: J2 terminals
Fig.3-14: Sense connector location
Function
Remote positive sense (+S).
Local positive sense. Connected internally to the positive output terminal (+LS).
Not connected (NC).
Local negative sense. Connected internally to the negative output terminal (-LS).
Remote negative sense (-S).
Terminal
J2-1
J2-2
J2-3
J2-4
J2-5
+S +LS NC -LS -S J2
+
VDC
24
Summary of Contents for Genesys GENH6-100
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