KEPCO BHK-MG 200W (Full Rack) Series - Manual (Page 91)

BHK-MG (OPR) 022014
3-47
Iout
DP
= Output current programmed digitally (from either local keypad or remote GPIB bus)
(See above for definitions of Rs and V
EXT
.)
3.6.5 PROGRAMMING WITH EXTERNAL CURRENT SOURCE (1 mA)
Figures 3-17 and 3-18 are simplified diagrams of the BHK-MG showing the jumper configuration
and external connections required for analog programming using a current source (1mA). Fig-
ure 3-17 shows the configuration for programming of either output voltage when the unit is in
voltage mode, or voltage limit when the unit is in current mode. Figure 3-18 is a similar diagrams
for programming either output current when the unit is in current mode, or current limit when the
unit is in voltage mode
CAUTION
Observe the following to avoid damage to the power supply. The external current source
output must be isolated from ground (floating output), or be powered from an a-c source that is
isolated from ground to avoid short-circuiting the internal sensing resistor.
FIGURE 3-17. ANALOG PROGRAMMING OF OUTPUT VOLTAGE (VOLTAGE MODE) OR VOLTAGE
LIMIT (CURRENT MODE) USING CURRENT SOURCE (1mA) (CS)