KEPCO BOP-GL 1KW Operator Manual Firmware Ver.3.05 and higher - Manual (Page 117)

BOP-1K-GL 022814
4-7
commands as needed (see PAR. 4.3a) until the DVM reading is as close to zero as possible
within tolerance specified in Table 4-3 for VOLTAGE ZERO.
13.Set the BOP to zero volts output by sending
CAL:ZERO
. Disconnect the +10V d-c reference
voltage from the analog I/O port external reference pin (A2A5J6 pin 11) of the BOP, then con-
nect 0V ±0.1mV d-c reference voltage from the external voltage source to +V_LIM_EXT (pin
14), –V_LIM_EXT (pin 6), +I_LIM–EXT (pin 13) and –I_LIM–EXT (pin 5) referenced to pin 12
(GND1) of the BOP analog I/O connector (A2A5J6), then send the
VLIM:ZERO
command fol-
lowed by the
CAL:ZERO
command. This enables the BOP to recognize that the voltage at the
±V_LIM_EXT pin is 0V.
14.Set the BOP to zero amperes output by sending
CAL:CLIM ZERO
. Then send the
CAL:ZERO
command. This enables the BOP to recognize that the voltage at the ±I_LIM–
EXT pin is 0V.
15.Connect +10.0V ±0.1mV d-c reference voltage from the external voltage source to
+V_LIM_EXT (pin 14), –V_LIM_EXT (pin 6), +I_LIM–EXT (pin 13) and –I_LIM–EXT (pin 5)
referenced to pin 12 (GND1) of the BOP analog I/O connector (A2A5J6), then send
CAL:VLIM MAX
, then
CAL:ZERO
commands. This enables the BOP to recognize that the
voltage at the +V_LIM_EXT pin is 10.0V.
16.Send
CAL:CLIM MAX
, then
CAL:ZERO
commands. This enables the BOP to recognize that
the voltage at the +I_LIM–EXT pin is 10.0V.
17.Set the BOP to minimum (maximum negative) output by sending
CAL:VLIM MIN
, then
send the
CAL:ZERO
command. This enables the BOP to recognize that the voltage at the
–V_LIM_EXT pin is 10.0V.
18.Set the BOP to minimum (maximum negative) output by sending
CAL:CLIM MIN
, then send
the
CAL:ZERO
command. This enables the BOP to recognize that the voltage at the –I_LIM–
EXT pin is 10.0V.
19.Connect a 0V ±0.1mV d-c reference to pin 8 (S_IN_SERIAL) of the PAR/SER CONTROL IN
connector (A2A5J3) referenced to COM S terminal at the rear panel (use mating connector
supplied with the unit, P/N 142-0488 to gain access to PAR/SER CONTROL IN connector
pins). Set the BOP to zero volts output by sending
CAL:SER ZERO
. Connect the DVM to the
BOP OUT S and OUT COM terminals and send
CAL:DATA
commands as needed (see PAR.
4.3a) to adjust the BOP output until the DVM reads as close to zero as possible within toler-
ance specified in Table 4-3 for VOLTAGE ZERO.
NOTE: Accuracy of the 10V d-c reference must be ±0.1mV in order for the calibrated unit to
meet published specifications.
20.Connect a –10V ±0.1mV d-c reference to pin 8 (S_IN_SERIAL) of the PAR/SER CONTROL
IN connector (A2A5J3) referenced to COM S terminal at the rear panel. Set the BOP to max-
imum positive output voltage by sending
CAL:SER MAX
. Measure the voltage output using
the DVM. Send
CAL:DATA
commands as needed (see PAR. 4.3b) until the DVM reading is
as close as possible to +10V.
21.Send
CAL:ZERO
to prepare for current calibration. After sending the command, the BOP out-
put will be set to zero volts. Refer to Figure 4-2 to connect the C terminals of the Kelvin type
sense resistor to the BOP and connect the DVM to the P (probe) terminals of the sense