KEPCO BOP 1KW-MG Operator Manual, Firmware Ver.2.38 to 2.47 - Manual (Page 143)

BOP-1K 080709
4-15
22.Connect a +0V ±0.1mV d-c reference voltage to external reference, A2A5J6 pin 11, refer-
enced to pin 12 (GND1) of the BOP analog I/O port.
23.Press # - EXTERNAL, ! - ZERO to set the BOP to zero volts across the sense resistor
(corresponding to zero current). Adjust as needed until the DVM reads as close to zero as
possible within the limits specified in Table 4-4 for CURRENT ZERO. Press
% twice.
24.Press @ - GAIN, ! - ZERO to set the BOP to zero volts across the sense resistor (corre-
sponding to zero current). Adjust as needed until the DVM reads as close to zero as possible
within the limits specified in Table 4-4 for CURRENT ZERO. Press
% twice.
25.Connect +10.0V ±0.1mV d-c reference voltage from the external voltage source to External
reference, pin 11, referenced to pin 4 (SGND) of the BOP Analog I/O Port connector
(A2A5J6), Press
@
- GAIN,
@
- POSITIVE. Measure the current by reading the voltage
across the sense resistor. Adjust as needed until the DVM reads as close to zero as possible
within the limits specified in Table 4-4 for CURRENT ZERO. Press
%
twice.
26.Press
#
- EXTERNAL,
@
- POSITiVE. Measure the current by reading the voltage across
the sense resistor. Adjust as needed until the DVM reads as close as possible above the
nominal full scale value within tolerance specified in Table 4-4 for +FULL SCALE CURRENT.
Press
% three times.
27.Connect the DVM to pin 6 (IOUT_M_UNIT) referenced to pin 1 (SGND) of the PAR/SER
CONTROL IN connector (A2A5J3). Press
#
- EXTRL CONTROLS,
!
- Iout, and
!
-
ZERO to set the BOP output current to zero. Adjust as needed until DVM reads 0V ±1mV
d-c. Press
% once.
28.Press @ - POSITIVE. With DVM still connected to pin 6 (IOUT_M_UNIT) referenced to pin
1 (SGND) of the PAR/SER CONTROL IN connector, adjust as needed until DVM reads +10V
±1mV d-c. Press
% twice.
29.Connect a 0V ±0.1mV reference to pin 3 (S_IN_PARALLEL) referenced to pin 1 (SGND) of
the PAR/SER CONTROL IN connector (A2A5J3). Press
#
- PARALLEL, and
!
- ZERO to
set the BOP output current to zero. Connect DVM across the sensing resistor. Adjust as
needed until DVM reads as close to zero as possible within tolerance specified in Table 4-4
for CURRENT ZERO. Press
%
once.
NOTE: Accuracy of the +10V d-c reference must be ±0.1mV d-c in order for the calibrated unit
to meet published specifications.
30.Connect a +10.0V ±0.1mV d-c reference to pin 3 (S_IN_PARALLEL) of the PAR/SER CON-
TROL IN connector (A2A5J3). Press
@
- POSITIVE to set the BOP to maximum output cur-
rent. Adjust as needed until DVM reads as close as possible above the nominal full scale
value within tolerance specified in Table 4-4 for +FULL SCALE CURRENT. Press
%
three
times.
31.Save the calibration levels by first using the keys or the ADJUST control to enter data such
as the calibration date, e.g., 12/21/2004 in the ASCII area of the display. The date entered
in this manner is reported in the *idn? query. Then press
$
- SAVE.