Sorensen SFA Series, Operation Manual

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Operation Sorensen SFA Series
model, each 100 millivolts of programming voltage equals 3 amps of
output current. See Figure 3–6 for connection requirements.
+
-
1
13
23 IP RTN
COM 6
+
-
16 IP 10V
IP 5V 10
0-5 VDC
VOLTAGE
SOURCE
0-10 VDC
VOLTAGE
SOURCE
Figure 3–6. Remote Current Programming Using 0-5 VDC or 0-10 VDC Voltage Source
3.4
REMOTE SENSING
Remote voltage sensing is recommended at all times, whether you connect
sensing leads to the load or directly to the output terminals. Remote sensing at
the load provides the best load regulation and most accurate voltage readback.
In applications where the load is located some distance from the power supply,
or the voltage drop of the power output leads significantly interferes with load
regulation, remote voltage sensing should definitely be used.
CAUTION!
If the power supply is operated with load power lines disconnected and
sensing line connected, internal power supply damage may occur. (Output
current then flows through sensing terminals.)
To use remote voltage sensing, connect the power supply as described below.
See Figure 3–7 for connection requirements.
Connect sensing leads from the load positive to J3-1 and the load negative to
J3-2. A shielded, twisted-pair, hookup wire is recommended to avoid potential
noise interference.
3-12 M550292-01 Rev C