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2.7.3
SETUP FOR REMOTE OPERATION VIA GPIB
With all power off, connect the load to the BOP using either local or remote sensing. If units are
to be connected in series or parallel, refer to PAR. 2.8. Connect the GPIB connector to the GPIB
port (see Figure 2-1 and Table 2-1). Turn power on and refer to PAR. 3.2 for power supply
basics and PAR. 3.5 for remote mode programming.
The default GPIB address is 6; to change it refer to PAR 3.5.3.1. The default configuration
allows both local and remote operation; to prevent local operation once the unit is being con-
trolled from the GPIB, see PAR. B.133. Refer to PAR. 3.5.3.1 to configure the GPIB Port.
SCPI programming is described in PAR. 3.6; Appendices A and B provide syntax for SCPI com-
mon and subsystem commands and queries implemented in this unit. All the features described
for Local Mode operation can be accomplished using remote SCPI commands.
2.7.4
SETUP FOR REMOTE OPERATION VIA RS 232C
With all power off, connect the load to the BOP using either local or remote sensing (refer to
PAR. 2.5). If units are to be connected in series or parallel, refer to PAR. 2.8. Connect the RS
232 connector to the RS 232 port (see Figure 2-1 and Table 2-1). Turn power on and refer to
PAR. 3.2 power supply basics and PAR. 3.5.6 for RS 232 operation. SCPI programming is
described in PAR. 3.6; Appendices A and B provide syntax for SCPI common and subsystem
commands and queries implemented in this unit. Refer to PAR. 3.5.3.2 to configure the RS 232
Port.
2.8
MULTIPLE UNIT CONFIGURATIONS
Parallel, series and series-parallel configurations of identical BOP units increases the rated volt-
age and current range of the power supply. Up to five units can be connected in parallel to
increase the current: I
parallel. Similarly, up to three units can be connected in series to increase the voltage: E
x N
= E
unit)
S
units may be connected in both series and parallel. The 2 X 2 configuration, two parallel
branches of two series-connected power supplies, doubles the output voltage and doubles the
output current of a single unit. The 3 X 2 configuration, two parallel branches of three series-
connected power supplies, triples the output voltage and doubles the output current of a single
unit. Multiple unit configurations require the appropriate Interconnection Kit (see Table 1-5).
For all multiple unit configurations the master reports the system output parameters: voltage
and current; the slaves report the main channel parameter: voltage for voltage mode (series
configurations) or current for current mode (parallel configurations).
Additional hex nuts are provided in the interconnection kit for sufficient cable separation so they
can be oriented as needed to fit onto the terminal.
NOTE: Multiple unit configurations require that all individual units be properly calibrated. (Units
shipped from Kepco have been factory-calibrated.) If not, refer to Section 4 to calibrate
the individual units prior to connecting them in parallel or series. Using calibrated units
ensures that the multiple unit configuration is calibrated; calibrating the multiple unit
configuration is neither needed nor possible.
Before powering up the units to be configured, first connect the units in parallel or series. Fig-
ures 2-4 (local sensing) and 2-5 (remote sensing) show the connections for three parallel-con-
nected units; Figures 2-6 (local sensing) and 2-7 (remote sensing) show the connections for
BOP HIPWR 080709
x N
MAX (one unit)
where N
MAX (parallel combination)
= I
P
MAX (parallel combination)
= number of units in series. In addition, identical
S
where N
= number of units in
P
MAX (one
2-13
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