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Figure b-4. setting limits, B.26 [source:]current[:level]:limit:pos? query, B.26 – KEPCO BOP 1KW-MG Operator Manual, Firmware Ver.4.08 to 4.11 User Manual

Page 163: Sour, B.26, b.26, B.26, b, Curr:lim:pos

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BOP-1K 070212

B-9

FIGURE B-4. SETTING LIMITS

B.26 [SOURce:]CURRent[:LEVel]:LIMit:POS? QUERY

CURR:LIM:POS?

Syntax:

Short Form: [SOUR:]CURR[:LEV]:LIM:POS?
Long Form: [SOURce:]CURRent[:LEVel]:LIMit:Positive?
Returns

Description: Identifies the positive software limit value of output current that the unit can source (quadrant 1, Figure

1-3) or sink (quadrant 4).

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.