KEPCO BOP-MG 1KW, Руководство оператора

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BOP HIPWR 111315
3-21
Accessing the BOP after the output is disabled in BATTERY mode is
hazardous because (1) high current arcing is possible and (2) either the
external battery voltage, or the voltage (±Voltage Protection max) on the
BOP output terminals may be dangerous. Therefore, for battery and
constant-voltage-type active electronic loads it is recommended that
two properly rated external switches be installed for safety: one in
series with the battery, and one across the BOP output. After the unit is
set to OFF, first open the switch in series with the battery, then close
the switch across the BOP output to ensure safety before handling
BOP connections. When connecting the battery, the switch across the
output should be opened after the connections are complete and then
the switch in series with the battery should be closed. If the constant-
voltage-type active electronic load is adjusted to zero before handling
the power supply-to-load connections, only the switch across the BOP
output is required.
BATTERY . This mode is necessary for the power supply to function properly and safely with
either battery or constant-voltage-type active electronic loads. This mode prevents the battery
from discharging during the OFF state. When the output is disabled (set to OFF), the BOP will
go to current mode, current will be set to the calibrated zero value, with voltage protect and cur-
rent limit set to maximum. In this way the battery will not be discharged while the output is OFF.
However, even if properly calibrated, the zero current has a tolerance of ±0.01% of nominal
rated current. Therefore the battery will be very slowly charged or discharged by this non-zero
current value, depending on its polarity. For constant-voltage-type active electronic loads this
mode stops energy flow during the OFF state. Table 3-6 indicates how the power supply
responds to a command to go from Output ON to OFF.
CAUTION: When working with battery mode, if the output is set to ON by *RST (see
PAR. 3.5.3.1.3) and the battery is charged above 0.01V, the unit will sink 105%
of I
O
max.
To configure, press
%
from the power-up screen, then highlight Load Type and press
!
to
modify. (If a Password is required, see PAR. 3.2.4.3 for instructions.) Highlight Active, Resistive
or Battery (see explanations and associated WARNINGS above) and press
$
to save. Then
press
$
to save for power-up,
#
to abort, or
%
to apply the changes (without saving for
power-up) and exit. After configuring, the new setting will be effective when the power supply
goes from output on to output off.
To restore factory default (Active), press
%
from the power-up screen, highlight Load Type,
press
!
, then press
@
to restore default. Press
$
to save for power-up or
%
to exit.
3.3.6.1 BATTERY CHARGING/DISCHARGING USING THE BOP
The BOP can charge/discharge batteries using either voltage mode or current mode. The rec-
ommended configuration is to use voltage mode with remote sense connections.
3.3.6.1.1 BATTERY OPERATIONS USING VOLTAGE MODE
Using voltage mode with remote sensing connections provides more accurate voltage control of
the battery, avoiding the effects of both parasitic voltage drops on the connection wiring and the
battery’s internal resistance.
WARNING