KEPCO KLP Series Developer's Guide, Rev 1 - Manual (Page 116)

B-10
KLP 031113
B.39 [SOURce:]CURRent:LIMit:HIGH? QUERY
CURR:LIM:HIGH?
Syntax: Short Form: [SOUR:]CURR:LIM:HIGH? (MIN | MAX)
Long Form: [SOURce:]CURRent:LIMit:HIGH? (MIN | MAX)
Return Value: = digits with decimal point and Exponent, e.g., 2.71E+1 for 27.1
Description: Returns value representing Virtual Model current limit. CURR:LIM:HIGH? returns the current limit
programmed by CURR:LIM:HIGH. CURR:LIM:HIGH? MAX returns the rated maximum programmable
current for that model (e.g., 33 (Amperes) for KLP 75-33. CURR:LIM:HIGH? MIN returns the minimum
allowable current that can be programmed.
Related Commands: CURR:LIM:HIGH, CURR. (See example, Figure B-3.)
B.40 [SOURce:]CURRent:MODE COMMAND
CURR:MODE
Syntax: Short Form: [SOUR:]CURR:MODE (FIX | LIST | TRAN) nn
Long Form: [SOURce:]CURRent:MODE (FIXed | LIST | TRANsient) nn
nn = = time in seconds for transient
Description: Allows the user to execute or stop a list, or to execute a transient. The default mode is FIX: the
power supply executes commands normally, and LIST commands can be issued to establish the
parameters and sequence of a list.
When CURR:MODE LIST is issued, a list is executed (See LIST commands and Figure B-2). While
the list is being executed, LIST commands are not accepted and will produce a command error.
Issuing CURR:MODE FIX while the list is running will stop the execution of the list and return power
supply to settings in effect prior to running the list. If the list runs to completion, the settings of the last
step of the list will be in effect.
CURR:MODE TRAN nn (Not supported at this time, contact Kepco for more information).
Related Commands: LIST commands. (See example, Figure B-2.)
B.41 [SOURce:]CURRent:MODE? QUERY
CURR:MODE?
Syntax: Short Form: [SOUR:]CURR:MODE? Long Form: [SOURce:]CURRent:MODE?
Return value: FIXED or LIST or TRAN
Description: Identifies active voltage mode. Returns LIST while list is being executed. TRAN (transient) is not
supported at this time, contact Kepco for more information. Returns FIXED while in fixed (default)
mode of operation. Related Commands: LIST commands. (See example, Figure B-2.)
FIGURE B-3. PROGRAMMING VIRTUAL MODELS
NOTE: The following example assumes KLP 75-33-1200 with virtual model set for 75V, 16A and output
operating in voltage stabilization mode.
SYST:PASS:CEN 7533 Enables access to the protected commands. NOTE: Password
shown is factory default value for KLP 75-33-1200; values will
vary for other models (see Table B-4) and can be altered by user.
VOLT:LIM:HIGH? Returns 7.5E1 (75V, virtual model voltage rating).
VOLT:LIM:HIGH 70 Programs virtual model voltage to 70V.
VOLT:LIM:HIGH? Returns 7.0E1 (70V, new virtual model voltage rating).
CURR:LIM:HIGH? Returns 1.6E1 (16A, virtual model current rating).
CURR:LIM:HIGH 30 Programs virtual model current to 30A.
CURR:LIM:HIGH? Returns 3E1 (30A, virtual model current rating).
VOLT:LIM:HIGH? Returns 4 E1 (40V, new virtual model voltage rating). Since model
is limited to 1200W maximum output, programming the maximum
virtual model current to 30A automatically forces the maximum
voltage to be no more than 1200 / 30 = 40V.
VOLT:LIM:HIGH 33 Programs virtual model voltage to 30A. Virtual model limits are now
set to 33V and 30A.
SYST:PASS:CDIS 7533 Disables access to the protected commands (password value must
match).