3-14
BOP HIPWR 091719
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 4.7-inch color graphical
display (LCD).
3.3.1
SETTING LOCAL MODE
When the power supply is turned on, it is automatically set to Local mode. After the unit is on, if
the display shows
F1-LOCAL
, the unit has received a remote command and
!
must be
pressed to unlock the keypad. However if the display shows
F1-LOCK
upon power up, the key-
pad has been locked by
KEYPAD @ power up
from the Power Up Settings menu (see Table 3-
7). Pressing any key allows the user to enter a password before pressing
!
; if the password is
correct, the keypad will be unlocked until the next remote command is issued. If the display
shows
F1-LOCK REMOTE
after initial power up, the keypad has been locked by the
SYST:KEYB DIS command and can only be unlocked by the SYST:KEYB ENAB command.
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. 3.2.4.2 and assign a password to “
Keyboard @ local
.“ Then the unit
will not permit local operation until the proper password has been entered (see PAR. 3.2.4.3).
NOTE: The
#
key can still be used to adjust display contrast before entering the password.
If the
!
key legend is
F1-LOCK REMOTE
, the keypad has been locked by the remote com-
mand, SYST:KEYB DIS (see PAR. B.162). 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. 3.2.4.3) and press
!
to verify. Under Menu Protection, highlight Keypad
@ Pwr-up and press F1. Highlight one 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. Table 3-4 defines the voltage
and current parameters used in this manual.
Содержание BOP-ME 1KW
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