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There is a potential shock hazard at the RS-232/RS-485 and the LAN/IEEE/USB 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 RS-232/RS-485 or LAN/IEEE/USB port 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 Figure 3-14 for sense connector location.
3.10.1
Sense Wiring
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
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 the J2 terminals assignments. With local sensing, the Output voltage regulation is
made at the output terminals. This method does not compensate for voltage drop across the load wires,
therefore it is recommended only for low load current applications or where the load regulation is less critical.
Terminal
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
OUTPUT TERMINAL GROUNDING
WARNING
contact with hazardous voltages.
Figure 3-14: Sense Connector Location
Function
Table 3-4: J2 Terminals
83-517-000 Rev. A
34
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