.,
HP 6002A/HP 1000
0044
1ERORV=1BERRC1DLU)
0045 1FC1ERORV.EQ.O)
RETURN
0046 WR1TEC1LU,1000)1ERORV
0047 1000
FORMATC"HP-1B
ERROR
..
13
.....
)
0048
VOUT=NO
0049
RETURN
0050 300 WR1TEC1LU,1001)
0051 1001 FORMAH"6002A
VOLTAGE
OUT
OF
RANGE
.")
0052
RETURN
0053
END
Figure
9·4.
Programming
6002A
Voltages
(Continued)
The range digit
can
be
the number 1 specifying low range
(0-10 volts for
CV,
0-2A for CC) or the number 2 specifying
high range
(0-50 volts for
CV,
0-10 amps for CC). The mag-
nitude digits can
be
any number from 0-999 (see figure 9-3).
Since 999 is the maximum value for the magnitude digits, the
programmable output ranges are
as
shown
in
figure 9-3.
Figure
9-4
shows
a
FORTRAN
test
program
and
a
generalized subroutine which allows the 6002A to
be
pro-
grammed from
0-49.9 volts by inputting the desired voltage
value
from a user terminal. The equations required to do the
operation are straight forward and can
be
found
in
the sub-
routine.
3
Range programming for the CC operation can
be
done
in
a similiar fashion.
The
following paragraphs provide detailed operating instruc-
tions required to program the
6002A for constant voltage or
constant current operation. Refer to figures 9-5 and 9-6 for
adjustments and component
locations respectively.
Low Range CV - 0 to 9.99V (99.9% of 10V)
High Range CV - 0 to 49.95V (99.9% of 50V)
Low
Range CC - 0 to 1.998A (99.9% of 2A)
High Range
CC - 0 to 9.99A (99.9% of 10A)
Figure
9·3. 6002A
Programmable
Output
Ranges
3
See
the 6002A Operating and Service Manual, Appendix A for
more information conceming range programming.
9·4
Constant Voltage Operation
To program the supply for constant voltage operation:
a.
Connect the supply to
an
HP 1000 controller.
b.
Set the mode switches on the rear of supply to the CV '
''--./
position,
c.
Turn
on
the supply.
d.
With the supply's output terminals open, program the
supply for the desired output voltage.
e.
Connect a short across the supply's rear panel output
terminals and adjust the front panel current control for
the desired maximum output current.
If
a load change
causes this current
limit
to
be
exceeded, the supply
automatically crosses over to constant current operation
at
this preset current limit and the output voltage drops
proportionally.
Constant Current Operation
To
program the supply for constant current operation, you
must first adjust
HP-IB option
001
for
CC
operation (steps a
through
h).
a,
Turn off the supply and set mode switches to the CC
position.
b.
Turn the VOLTAGE control on the front panel fully
clockwise.
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