CONSTANT
CURRENT
MODE
4.
USING THE 400XAC IN CONSTANT CURRENT MODE
1) Turn ON the OC FOLD parameter.
From the Set screen, press the “<more>” soft key and then press SYSTEM in the
next screen.
In the System Parameters Menu, use the up or down arrow soft keys to highlight the
“OC FOLD” parameter. Press EDIT to change the parameter.
Press CHANGE to set the highlighted parameter to ON. Press ENTER to save
changes and press EXIT two times to return to the Set screen.
2) Program a current Hi-Limit, which represents the constant current you will
provide to the load.
Press EDIT from the Set screen.
Use the up and down arrow soft keys to highlight the “A Hi-Lmt” parameter. Press
EDIT to change the parameter.
Use the Numeric Keypad to enter the desired current limit. Press ENTER to save
changes and then press EXIT to return to the Edit Parameters Menu. The limit set will
be the constant current output.
3) Program the voltage.
From the Edit Parameters Menu, use the up or down arrow soft keys to highlight the
“Voltage” parameter. Press EDIT to change the parameter.
Using the Numeric Keypad enter the voltage which should be set higher than the
nominal load voltage. This allows the current to adjust to the Hi-Limit value.
Press ENTER after you enter the voltage and press EXIT twice to return to the Set
screen.
