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83
-
507
-
013 Rev. D
25
WARNING
OUTPUT TERMINAL GROUNDING
There is a potential shock hazard at the RS232/RS485 and the IEEE ports when
using power supplies with rated or combined voltage greater than 400V
with the
Positive Output of the power supplies grounded. Do not connect the Positive
output to ground when using the RS232/RS485 or IEEE under the above cond
i-
tions.
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. R
e
fer to Fig.3
-
14 for sense
connector location.
3.10.1
Sense wiring
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
regulatio
n 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 reg
u-
lation is less critical.
Table 3
-
4: J2 terminals
Terminal
Function
J2
-
1
Remote positive sense (+S)
J2
-
2
Local positive sense. Connected internally to the positive output terminal (+LS).
J2
-
3
Not connected (NC)
J2
-
4
Local negative sense. Connected internally to the negative output terminal (
-
LS).
J2
-
5
Remote
negative sense (
-
S).
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 ar
e shielded to prevent accidental contact with hazardous voltages.
Fig.3-14: J2 Sense connector location
ON
OFF
SW1
J2