KEPCO BOP 1KW-MG Operator Manual, Firmware Ver.2.01 to 2.37 - Manual (Page 71)

BOP HIPWR 022108
3-11
3.3 LOCAL MODE OPERATION
Local operation of the BOP power supply can be accomplished from the front panel via the 27
key keypad, and the ADJUST knob. All indications are provided by the 4-inch graphical display
(LCD).
3.3.1 SETTING LOCAL MODE
When the power supply is turned on, it is automatically set to Local mode. If the unit is in
REMOTE mode and the display shows
F1-LOCAL , pressing ! sets the unit to LOCAL mode.
3.3.1.1 KEYPAD LOCKOUT
To prevent the unit from entering local mode from the front panel once remote mode has been
entered, refer to PAR. 3.2.4.3 and assign a password to “
Keyboard @ local .“ Then the unit
will not permit local operation until the proper password has been entered (see PAR. 3.2.4.4).
NOTE: The
# key can still be used to adjust display contrast before entering the password.
If the F1 key legend is F1 - LOCAL LOCK OUT, the keypad has been locked by the remote
command SYST:KEYB DIS (see PAR. B.107). To unlock the keypad, either send SYST:KEYB
ENAB or turn the unit off then on again.
3.3.1.2 LOCAL PASSWORD PROTECTION AT POWER-UP
It is possible to require a password before the front panel controls can function when the unit is
powered up. From the power-up screen, press
% , highlight password, then ! . Enter Admin 2
password (see PAR. 3.2.4.4) and press
!
to verify. Under Menu Protection, highlight Keypad
@ Pwr-up and press F1. Highlight on of three password settings and press $ to save. Then
press
$
to save for power-up (or
%
to exit without applying the changes). When the unit is
next powered up, pressing any keypad key or rotating the ADJUST control requires entry of the
password selected above before continuing. NOTE: The
#
key can still be used to adjust dis-
play contrast before entering the password.
3.3.2 SETTING VOLTAGE OR CURRENT MODE
The BOP uses two separate channels, one to set output voltage or current and one to set the
corresponding protection limit. The main channel is determined by the
MODE key (in local
mode) which alternately selects either Voltage mode or Current mode or by SCPI command (in
digital remote mode). The protection channel is determined automatically by the main channel
selected. When Voltage mode is selected, the current protection channel is active, and when
Current mode is selected, the Voltage protection channel is active.
3.3.3 PROGRAMMING VOLTAGE OR CURRENT AND ASSOCIATED PROTECT LIMITS
From the power-up screen the settable voltage/current parameters are displayed at the bottom
of the LCD above the
HELP message (see Figure 3-3). Use Y or U to highlight the main or
protect channel. (For BOP protect limits refer to PAR. 3.3.4.2 and for external limits see PAR.
3.3.4.3.)
1. To verify that the unit is configured for internal references press $ from the power-up
screen and verify that Reference Input and Protection Limit are set to Internal, and External
Mode is set to Disable. If necessary to change a setting, use
Y or U to highlight the
parameter, and press
!
to modify. Highlight the desired selection and press
$
to save,
then press $ to save for power-up or % to exit. If analog programming is desired, refer to
PAR. 3.4.