3-60
BHK-1/2-MG 030916
d. Program overvoltage value of master unit (Vovset
M
) to 1.1 x Vset
M
(step 4b).
5. To apply power to the load:
a. If load switch used, open the switch.
b. If load switch not used, press POWER ON/OFF key once on slave unit, then once on
master unit.
6. To disable power to the load:
a. If load switch used, close the switch.
b. If load switch not used, press POWER ON/OFF key once on master unit, then once on
slave unit.
c. Alternative: Turn both units off by setting POWER switch to off (down) position, first on
master unit, then on slave unit.
3.9.3
PARALLEL OPERATION
Kepco BHK-MG power supplies can be parallel-connected for increased output current, if the
precautions outlined below are followed. Two basic parallel-connection methods are generally
used: automatic (PAR. 3.9.2.1) and master-slave (PAR. 3.9.2.2).:
HANDLING HIGH VOLTAGE, LOW IMPEDANCE EQUIPMENT IS DANGEROUS, AND
POTENTIALLY LETHAL. OBSERVE ALL PRECAUTIONS LISTED IN PAR. 3.8.1., AS WELL
AS THE PRECAUTIONS LISTED BELOW.
a. Connect the chassis ground terminal, TB1-4, of all parallel-connected power supplies
to a good a-c ground (earth ground).
b. If necessary, the grounding network can be used for each one of the parallel-connected
power supplies (refer to PAR. 2.7.5.3 for additional information regarding use of the
grounding network).
c. The parallel combination of BHK-MG power supplies can operate either isolated from
ground (floating) or with either of the two output terminals of the parallel combination
grounded. When analog programming is used, however, it is recommended that the
positive output terminal of the parallel combination be grounded to avoid potentially
hazardous conditions requiring the use of fully insulated external equipment (see pre-
cautions of PAR. 3.8.1).
If the negative output terminal is grounded, special precautions are required when using
external programming sources: THE PROGRAMMING SOURCE MUST BE ISOLATED AND
INSULATED for the maximum output voltage of the parallel combination. The programming
source must be either battery powered or powered through an isolation transformer and
have “fully insulated controls and chassis” features (see also PAR’s. 3.8.2 through 3.8.5).
NOTE: The simplified schematic diagrams (Figures 3-23 through 3-25), illustrating the associ-
ated interconnections, show the power supplies configured in either slow mode for
units operating in voltage mode, or fast mode for units operating in current mode, how-
ever other combinations are also possible. Due to the low current involved, the units
WARNING
Содержание BHK-MG Series
Страница 2: ......
Страница 6: ......
Страница 16: ......
Страница 18: ...xii BHK MG030916 FIGURE 1 1 BHK MG 40W SERIES PROGRAMMABLE POWER SUPPLY...
Страница 24: ...1 6 BHK 1 2 MG OPR 030916 FIGURE 1 2 BHK 40W SERIES POWER SUPPLY MECHANICAL OUTLINE DRAWING SHEET 1 OF 2...
Страница 25: ...BHK 1 2 MG OPR 030916 1 7 FIGURE 1 2 BHK 40W SERIES POWER SUPPLY MECHANICAL OUTLINE DRAWING SHEET 2 OF 2...
Страница 26: ...1 8 BHK 1 2 MG OPR 030916 FIGURE 1 3 RA 24 RACK ADAPTER WITH TWO 1 2 RACK BHK MG 40W UNITS...
Страница 35: ...BHK 1 2 MG SERIES 030916 2 3 FIGURE 2 2 BHK MG SERIES REAR PANEL CONTROLS AND CONNECTIONS...
Страница 100: ...3 54 BHK 1 2 MG 030916 FIGURE 3 20 SERIES AUTOMATIC CONFIGURATION...
Страница 108: ...3 62 BHK 1 2 MG 030916 FIGURE 3 23 PARALLEL AUTOMATIC CONFIGURATION Eo is the output voltage of the power assembly...
Страница 113: ...BHK 1 2 MG 030916 3 67 FIGURE 3 25 PARALLEL MASTER SLAVE CURRENT MODE CONFIGURATION...
Страница 150: ......
