GW Instek PSU-Series User Manual - Manual (Page 123)

ANALOG CONTROL
123
Note
The input impedance for external voltage control is
1MΩ.
Use a stable voltage supply for the external voltage
control.
Note
CV and CC Slew Rate Priority are disabled for V-I
mode (F-03) when using external voltage control.
See the normal function settings on page 99.
CAUTION
Ensure the voltage polarity is correct when
connecting the external voltage.
Ensure no more than 10.5V(F-97 = 1) or 5.25 (F-97
= 0) volts are input into the external voltage input.
External Resistance Control of Voltage Output
Background External resistance control of the voltage output
is accomplished using the analog control
connector on the rear panel.
There are two external resistance control
ranges, 0~5kΩ and 0~10kΩ, depending on the
F-97 configuration. See page 108 for details.
The output voltage (0 to full scale) can be
controlled with the external resistance rising
0kΩ~5kΩ/0kΩ~10kΩ or falling
5kΩ~0kΩ/10kΩ~0kΩ.
Rising:
For 0kΩ~10kΩ: Output voltage = full scale
voltage × (external resistance/10)
For 0kΩ~5kΩ: Output voltage = full scale
voltage × (external resistance/5)