KEPCO BOP-GL 1KW, Operator'S Manual

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BOP-1K-GL 111315
• Sending VOLT:PROT:MODE EXT allows the voltage protect limits to be controlled by
pins 6 and 14 of the Analog I/O port. Sending CURR:PROT:MODE EXT allows the cur-
rent protect limits to be controlled by pins 5 and 13 of the Analog I/O port.
• Sending VOLT:PROT:MODE LESS allows the voltage protect limits to be controlled by
the lesser absolute value between that selected by the digital VOLT:PROT:LIM com-
mands and the analog voltage on pins 6 and 14 of the Analog I/O port (see PAR. 3.4.2.1
for details).
• Sending CURR:PROT:MODE LESS allows the current protect limits to be controlled by
the lesser absolute value between that selected by the digital CURR:PROT:LIM com-
mands and the analog voltage on pins 5 and 13 of the Analog I/O port (see PAR. 3.4.2.1
for details).
3.4 ANALOG REMOTE MODE PROGRAMMING
The recommended method for asserting Analog control requires that the unit be powered up
with power-up switches S3-1 through S3-5 set to 00000 (see Figure 2-2 and Table 2-2). This
sets up the following:
• The main channel is controlled by the external reference at pin 11 of the Analog I/O port
(see Table 2-12).
• The limit channels are controlled by the reference voltages at pins 5, 6, 13 and 14 of the
Analog I/O port (only two pins are active, determined by which limit channel is
active) (see Table 2-12).
• The mode (voltage/current) is determined by the state of pin 2 of the Analog I/O port (see
Table 2-12).
Analog mode may be configured remotely using either VOLT:MODE EXT (PAR. B.94) or
CURR:MODE EXT (PAR. B.27) to enable the external reference in both voltage and current
mode. Digital programming may be restored remotely by sending either VOLT:MODE FIX (PAR.
B.94) or CURR:MODE FIX (PAR. B.27).
Pins of the Analog I/O port can also be used selectively to control the unit if the unit is powered
up with power-up switches S3-2 and S3-5 set to on (see Figure 2-2 and Table 2-2). This allows
the other S3 switches to selectively establish the following:
• Establish voltage or current mode (PAR. 3.3.9).
• Control the main channel using the BOP as a power amplifier (PAR. 3.4.1).
• Establish the protection limits (PAR. 3.4.2).
3.4.1 CONTROLLING THE OUTPUT USING THE BOP AS A POWER AMPLIFIER
The BOP can function as a power amplifier by means of the External Reference input at the
Analog I/O port. This analog signal controls the main channel of the BOP. To use the BOP as a
power amplifier see the following instructions for using the external reference for establishing
the maximum full scale output.: PAR. 3.4.1.1 for fixed gain, PAR. 3.4.1.2 for variable gain.