KEPCO BOP-ME 1KW, Руководство оператора

Страница: 98 / 234

3-22
BOP HIPWR 091719
3.3.4.3 EXTERNAL LIMITS
These limits are external analog signals which are converted within the BOP to digital signals
that program the protection channels only: current protect in voltage mode and voltage protect
in current mode. The range of each analog input signal is +1V to +10V, corresponding to a
range for clamping the output between minimum, 10% of nominal (positive and negative), to
+max/–min of nominal rating. Refer to PAR. 3.4.5 for details on implementing external limits.
Table 3-4 explains the effect that these limits have in both voltage and current mode, and refer-
ences the corresponding paragraph for changing the parameter in either local or remote mode.
3.3.5 ENABLING/DISABLING DC OUTPUT POWER
The BOP output can be disabled (OFF) or enabled (ON) by toggling the STANDBY key in local
mode or sending the SCPI OUTPut ON or OUTPut OFF command (see PAR. B.21) via the
selected digital remote control bus (see PAR. 3.5). The behavior of the unit when disabled
depends on the Load Type setting (see PAR. 3.3.7 and Table 3-6 for details).
3.3.6 USING THE TRIGGER PORT TO CUSTOMIZE OUTPUT ON/OFF OPERATION
The Trigger Port, pin 2 (see Table 2-3) can be used to set the output on or off via a single remote
signal. The Trigger port can be configured either locally, using the front panel, or remotely, using
the OUTP CONT command. (see PAR. B.23).
From the front panel press
%
from the power-up screen to enter the General Setup menu (Fig-
ure 3-8), then highlight Load Type and press
!
to modify. (If a Password is required, see PAR.
3.2.4.3 for instructions.) Press down or up arrow key to highlight the Remote On-Off option, then
press
!
to open the Output Configuration screen and show choices. Highlight Disabled, High
Is Off, Low Is Off, High Is On, Low Is On, or LowPulseOff (see Table 2-3 for details), and press
$
to save or
#
to abort. Then press
$
to save for power-up, or
#
to apply the changes
(without saving for power-up) and exit. To restore factory default (LowPulseOff), press
@
from
the Output Configuration screen, then press
$
to save for power-up or
%
to exit.
3.3.7 DETERMINING HOW THE UNIT RESPONDS WHEN OUTPUT IS OFF (LOAD TYPE)
The BOP supports three Load Type selections (see Table 3-6) which determine how the power
supply responds when the output is off: ACTIVE, RESISTIVE and BATTERY. (Load type CUS-
TOM (not normally active) permits customized settings to be implemented; for details contact
consult factory.) These selections are designed to provide proper operation with different load
types. It is important to note that the Load Type selection does not affect the settings of the
power supply for ON state; it only affects the main internal reference level and the protection lev-
els during the OFF state.