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3.5
Remote Resistor Programming of Output Voltage and Output
Current
For resistive programming, the internal current sources for output voltage and/or output current
control supply 1mA current through external programming resistors connected between J1-8 and
J1-18, and between J1-7 and J1-18. The outcome voltage, as a result, of current flow across the
programming resistors is used as a programming voltage for the power supply. Resistance of 0–5
kΩ or 0–10 kΩ can be selected to program the output voltage and current from zero to full scale. A
variable resistor can control the output over the entire range, or a combination of variable resistors
and series/parallel resistors can control the output over a restricted portion of the range.
For Resistor Analog Programming wiring, refer to Figure 3–2.
Set the Remote Programming settings as follows:
1.
Short the pin J1-6 to J1-11.
2.
Press the CONF button, CONF (GREEN) LED illuminates.
3.
Rotate Voltage encoder until V.SRC or C.SRC appears on the voltage display.
4.
Rotate the Current encoder to set E.RES. Press the Current encoder for selection, display blinks
once to acknowledge the setting.
5.
Rotate the Voltage encoder until RANGE appears on the voltage display.
6.
Rotate the Current encoder to set 5 (5Kohm) or 10 (10Kohm). Press the Current encoder for
selection, display blinks once to acknowledge the setting.
7.
Exit CONF menu by pressing the Back button or the CONF button.
8
7
OUTPUT VOLTAGE PROGRAMMING
OUTPUT CURRENT PROGRAMMING
6
11
Figure 3–2: J1-Remote Resistor Programming Connection
50
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