8 local and remote sensing – American Magnetics 12100PS DC Power Supply (CE-Marked) User Manual
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OPERATING MANUAL
INSTALLATION
Release 2.0 (98/06)
2-15
2.8 Local and Remote Sensing
Use connections at the rear panel J10 sense connector to configure the
power supply for local or remote sensing
of output voltage. See Figure 2.8-1 for a drawing of the sense connector.
2.8.1 Sense
Wiring
For local sense jumpers or for remote sense wires, use wiring with a minimum insulation rating equivalent to the
maximum output voltage of the power supply. For example, select TEW-105, 105°C, 600V wiring for use with a
model 600-2 power supply. For lowest noise performance, use shielded-twisted pair wiring of 16 to 24 AWG for
remote sense lines. Strip wires 0.26" (6.5 mm) and insert securely as with any wire clamp connector.
2.8.2 Local
Sensing
We ship the
power supply with the rear panel J10 sense connector jumpered for local sensing of the output
voltage. See Table 2.8-1 for the list of connector functions and a description of local sense connections. With
local sensing, the output voltage is regulated at the output terminals (or bus bars). This method does not
compensate for voltage losses in the load lines, so it is recommended only for low current applications or
applications for which load regulation is not essential.
Note:
When using local sense connections, use the largest practical load wire size to minimize the effects of
line impedance on the regulation of the supply.
Figure 2.8-1 J10 Sense Connector
(Shown with local sense jumpers connected.)
Table 2.8-1 Rear Panel J10 Sense Connector Terminals and Functions
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 bus bar.
J10-3
N/C
No connection.
J10-4
Positive Output (+OUT)
Connected internally to positive bus bar.
J10-5
Positive Sense (+SNS)
Remote positive sense connection. Default
connection to terminal 4.
2.8.3
Using Remote Sensing
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 the power supply's chassis.
CAUTION
Do not use remote sensing with multiple supplies connected in series.