KEPCO BOP-GL 1KW Operator Manual Firmware Ver.3.05 and higher - Manual (Page 76)

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BOP-1K-GL 022814
• If S3 is set to 101xx (x = set as desired, S3-3 = 1, S3-4 = 0, S3-5 = 1), –V Protect Max
and –C Protect Max are internally set to maximum (1.01 x nominal (rated) values. +V
Protect Max and +C Protect Max are Internally set to min. (box).
• If S3 is set to 110xx (x = set as desired, S3-3 = 0, S3-4 = 1, S3-5 = 1), +V Protect Max
and +C Protect Max are internally set to maximum (1.01 x nominal (rated) values. –V
Protect Max and –C Protect Max are Internally set to min. (box).
• If S3 is set to 111xx (x = set as desired, S3-3 = 1, S3-4 = 1, S3-5 = 1), ±V Protect Max
and ±C Protect Max are internally set to maximum (1.01 x nominal (rated) values.
Once the unit is powered up, main channel mode can be controlled by the CURR:PROT:MODE
(see PAR. B.31) and VOLT:PROT:MODE (see PAR. B.98) commands.
• Sending VOLT:PROT:MODE FIXED allows the voltage protect limits to be controlled by
VOLT:PROT:LIM commands and sending CURR:PROT:MODE FIXED allows the current
protect limits to be controlled by CURR:PROT:LIM commands
• 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 2-11).
• 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 2-11).
• The mode (voltage/current) is determined by the state of pin 2 of the Analog I/O port
(see Table 2-11).