Table of Contents
Advertisement
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?
CURR:LIMIT:POS 10;NEG 2
func:mode volt
volt 15;curr 2
CURR 10
curr:prot?
CURR:prot:neg 1
CURR:PROT:LIM:NEG 5
curr:prot?
---- Turn BOP POWER off and then on.
curr:lim?
CURR:PROT:LIM:POS 28.3;neg 28
CURR 28
curr:prot?
func:mode curr
B.21 [SOURce:]CURRent[:LEVel]:LIMit:NEG COMMAND
Syntax:
Short Form: [SOUR:]CURR[:LEV]:LIM:NEG <value>
Long Form: [SOURce:]CURRent[:LEVel]:LIMit:NEGative <value>
Description: Establishes the negative software limit <value> for output current, i.e., sets the maximum value of out-
put current that the unit will be allowed to source (quadrant 3, Figure 1-3) or sink (quadrant 2) to the
value specified by the user. Requires MEM:UPD (PAR. B.12) to save for power up. See PAR. 3.5.2.2
and Figure 3-16 for special programming considerations.
B.22 [SOURce:]CURRent[:LEVel]:LIMit:NEG? QUERY
Syntax:
Short Form: [SOUR:]CURR[:LEV]:LIM:NEG?
Long Form: [SOURce:]CURRent[:LEVel]:LIMit:NEGative?
Returns <value>
Description: Identifies the negative software limit value of output current that the unit can source (quadrant 3, Fig-
ure 1-3) or sink (quadrant 2).
B-8
Returns 28,28 (positive and negative defaults for max
current in current mode).
Establishes the maximum positive and negative current values
that can be set in current mode.
Sets power supply in voltage mode.
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.
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
Returns 10,10
Limits the negative current capability to 1 ampere.
Prevents CURR:PROT:NEG setting from exceeding
5 amperes
Returns 10,1 (the actual positive (10) and negative (1)
protection levels for the current.
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.
Establishes new max current protect limits (positive 28.3 and
negative 28.
Establishes the positive protect to be 28 amperes and the
negative protection remains 28 amperes.
returns 28,28
Changes the mode of operation of the power supply to current
mode.
FIGURE B-4.
SETTING LIMITS
CURR:LIM:NEG
CURR:LIM:NEG?
BOP-1K 080709
Advertisement
Table of Contents
