KEPCO KLP Series (older -1200 models) Operator Manual - Manual (Page 97)

KLP 073008
B-11
FIGURE B-4. PROGRAMMING AS A CURRENT STABILIZER
B.43 [SOURce:]CURRent:[:LEVEL]TRIGgered[:AMPlitude] COMMAND
CURR:TRIG
Syntax: Short Form: [SOUR:]CURR[:LEV]:TRIG[:AMP]
Long Form: [SOURce:]CURRent[:LEVel]:TRIGgered[:AMPlitude]
= digits with decimal point and Exponent, e.g., 2.71E+1 for 27.1
Description: Programs current value to be transferred to output by *TRG commands. Actual output current
will depend on load conditions. If the value exceeds the maximum for the model being programmed,
error message -222,”Data out of range” is posted in output queue. If value exceeds CURR:LIM:HIGH
value, a value corresponding to the current limit will be programmed. NOTE: A voltage trigger level
must be entered at least once. Related Commands: CURR. (See example, Figure B-1.)
B.44 [SOURce:]CURRent:[:LEVEL]TRIGgered[:AMPlitude]? QUERY
CURR:TRIG?
Syntax: Short Form: [SOUR:]CURR[:LEV]:TRIG[:AMP]?
Long Form: [SOURce:]CURRent[:LEVel]:TRIGgered[:AMPlitude]?
Return Value: = digits with decimal point and Exponent, e.g., 2.71E+1 for 27.1
B.45 [SOURce:]FUNCtion:MODE COMMAND
FUNC:MODE
Syntax: Short Form:FUNC:MODE {VOLT | CURR}
Long Form: FUNCtion:MODE {VOLT | CURR}
Description: Establishes the operating mode of the power supply. VOLT = Constant Voltage mode (CV).
CURR = Constant Current mode (CC). Default operating mode is CV.
NOTE: The following example assumes KLP 75-33-1200 with virtual model set for 36V, 33.33A and output
operating in current stabilization mode. See Figure B-3 for directions on programming virtual
model limits.
VOLT 32.1;CURR 4 Programs output voltage for 32.1V, output current for 4A.
OUTP ON Enables output. NOTE: Load determines output operating mode; if
load resistance is less than 32.1/4, output will operate as current sta-
bilizer.
MEAS:CURR? Returns measured output current, approximately 4E0 assuming cur-
rent stabilizer operation.
CURR? Returns 4E0 (4A, programmed output current).
CURR 3.3E-1 Programs output current to 0.33A. NOTE: For this model, 0.4A is the
minimum load current (see Table 1-1), therefore although 0.33 value
is programmed; load current will not be less than 0.4A. No explicit
indication is given regarding this change.
CURR? Returns 4E-1 (0.4A).
CURR? MAX Returns 3.333E1 (33.33A, the virtual model current setting).
CURR:PROT .5 For this model, minimum overcurrent protection is 0.6 x 33.33 =
20A,(see PAR. 3.2.7), therefore power supply returns error message
-222 (Data out of range, ESR bit 4 =1) and the limit remains
unchanged.
CURR:PROT 25 Programs overcurrent protection limit to 25A.
CURR:PROT? Returns 2.5E1 (25A).
CURR 26 Returns error message -301 (Value bigger than limit, ESR bit 3=1) and
current setting remains unchanged at 0.4A.
CURR:PROT?MAX Returns 4E1 (maximum allowable overcurrent protection limit for
model is 40A, 20% above maximum current (33.33A) for KLP 75-33-
1200, regardless of virtual model setting).