KEPCO BOP-ME 1KW, Operator'S Manual

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BOP-1K 091719
B-13
B.36 [SOURce:]CURRent:MODE? QUERY
CURR:MODE?
Syntax: Short Form: [SOUR:]CURR[:LEV]:MODE?
Long Form: [SOURce:]CURRent[:LEVel]:MODE?
Return value: FIXED, LIST, TRANSIENT, EXTERNAL or GAIN
Description: Identifies active current mode. Returns LIST while list is being executed. Returns TRANSIENT after
CURR:MODE:TRAN command has been issued, but before CURR: or *TRG command executes the
transient. Returns FIXED while in fixed (default) mode of operation. Returns EXT or GAIN when exter-
nal reference is to be used to either program output current or provide proportional output current,
respectively.
Related Commands: LIST commands. (Similar to VOLT:MODE?, see Figure B-6.)
FIGURE B-5. SETTING LIMITS
B.37 [SOURce:]CURRent[:LEVel]:PROTect[:BOTH] COMMAND
CURR:PROT[:BOTH]
Syntax: Short Form: [SOUR:]CURR[:LEV]:PROT:BOTH <value>
Long Form: [SOURce:]CURRent[:LEVel]:PROTect:BOTH <value>
where <value> is between minimum (box) value (Figure 1-3) and 1% above rated (nominal) output
current.
Description: Establishes both the positive and negative protection limits for current, the maximum current the unit is
set up to source and sink; maximum is 1% greater than rated output current.
NOTES: 1. This example assumes a BOP 36-28MG power supply is operating in constant current (CC)
mode.
2 Examples below are intended only to illustrate command functions. Refer to PAR. 3.5.2 for pro-
gramming techniques to optimize performance.
CURR:LIM? Returns 28,28 (positive and negative defaults for max
current in current mode).
CURR:LIMIT:POS 10;NEG 2 Establishes the maximum positive and negative current values
that can be set in current mode.
FUNC:MODE VOLT Sets power supply in voltage mode.
VOLT 15;CURR 2 Allows the power supply to provide 15 volts positive with the
ability to source or sink up to 2 amperes. The display shows:
15.000 2.000 2.000.
CURR 10 Since the BOP is operating in voltage mode, sets the current
capability (current protect) to 10 amperes. The display shows:
15.000 10.000 10.000
CURR:PROT? Returns 10,10
CURR:PROT:NEG 1 Limits the negative current capability to 1 ampere.
CURR:PROT:LIM:NEG 5 Prevents CURR:PROT:NEG setting from exceeding
5 amperes
CURR:PROT? Returns 10,1 (the actual positive (10) and negative (1)
protection levels for the current.
---- Turn BOP power off and then on.
CURR:LIM?
Returns 28,28 the factory default levels (all the above
changes have been lost). To lock in the changed limits, the user
must send :MEMORY:UPDATE LIMITS.
CURR:PROT:LIM:POS 28.3;NEG 28 Establishes new max current protect limits (positive 28.3 and
negative 28.
CURR 28 Establishes the positive protect to be 28 amperes and the
negative protection remains 28 amperes.
CURR:PROT? returns 28,28
FUNC:MODE CURR Changes the mode of operation of the power supply to current
mode.