Installation
Local and Remote Sensing
54
Operating Manual for XFR 1.2kW Series Power Supply
Table 2.5
Rear Panel J10 Sense Connector Terminals and Functions
Using
Remote
Sensing
Use remote sensing during voltage mode operation to shift the power supply’s
regulation point from its default position at the rear panel output terminals to the load
or distribution terminals by using a separate pair of wires to allow the control
circuitry to monitor the load voltage. This allows the power supply to compensate
for voltage losses in the load lines which will otherwise degrade the regulation of the
supply. Line drop is subtracted from the total voltage available at the output.
Terminal Name
Function
J10-1
Return Sense (–SNS)
Remote negative sense connection.
Default connection to terminal 2.
J10-2
Negative Output (Return or RTN) Connected internally to negative output.
J10-3
N/C
No connection.
J10-4
Positive Output (+OUT)
Connected internally to positive output.
J10-5
Positive Sense (+SNS)
Remote positive sense connection.
Default connection to terminal 4.
WARNING
There is a potential shock hazard at the sense points when using a power supply
with a rated output greater than 40 V. Ensure that connections at the load end
are shielded to prevent contact with hazardous voltages.
!
CAUTION
Ground the sense line shield in one place only. Locations include: the power
supply’s return output connection at the load, the power supply’s return output at
its negative output terminal, or at the power supply’s chassis.
!
CAUTION
Do not use remote sensing with multiple supplies connected in series.
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