Parallel configuration operation check – AMETEK ReFlex User Manual
Page 127
AC Power Supplies
ReFlex Power™
4-42
M380056-01 Rev K
Open the aux relay: OUTP[n]:AUXR 0
Open the main isolation relay: OUTP[n]:STATE 0
Set 280VAC range
SOUR[n]:VOLT:RANGE 1
Repeat steps 2 through 8
Turn off the output with the following command:
*RST[n]
P
ARALLEL
C
ONFIGURATION
O
PERATION
C
HECK
1. Before attempting to verify parallel operation, perform the power-on test
of the individual modules per the section, Power-On Check, and then the
standalone operation test per section, Standalone Configuration.
2. Connect the outputs for parallel operation per the section, Parallel
Configuration. Ensure that the outputs and remote sense are
appropriately hardwired prior to issuing any of the paralleling SCPI
commands.
3. Connect appropriate instrumentation for measuring the output voltage
and current, as well as a load.
4. Configure the modules into a parallel group with the following command,
where [n1] is the master module of the group. Although the example is
for two modules, it could be extended to a greater number by listing
additional parameter slot numbers, [n].
SYST:GRO:DEF:PAR [n1],[n2]
5. Verify that the parallel group has been properly set up with the following
command. SYST:GRO:CAT:PAR?. The response to the query is a listing
of the master module of the parallel group. For example, a group of
modules with a master in slot 3 and a slave in slot 7 would return the
parameter, 1003. The parameter, [1000+n1], is the sum of 1000 and
the slot number of the master module; the master module is the left-most
module of the parallel group.
6. Turn on the isolation and remote sense relays, turn on the output
converters, and program full scale voltage and current with the following
commands. The parameter,
current of the particular model under test. The parameter, [1000+n1], is
the sum of 1000 and the slot number of the master module; the master
module is the left-most module of the parallel group. For example, if the
master module is located in slot 1, the parameter value would be 1001.
OUTP[1000+n1]:STATE 1