Sequoia Series 115
VOLTage:ALC
Phase Selectable
This command enables or disables the automatic voltage level control mode. If ALC is on, the output
voltage of the power source is continuously adjusted based on the voltage measurement data acquired
by the controller's measurement system. This results in increased output accuracy and load
regulation. If regulation cannot be maintained, an output voltage fault error is generated and the output
is turned off. The regulate mode (REG) may be set to enable ALC mode but disable the output volt
fault error if load regulation cannot be maintained.
Note that for the Sequoia 1U, 1-Phase and Sequoia 2U, 3-Phase, this mode is coupled with the
OUTP:IMP commands as the ALC mode and the programmable impedance functions are mutually
exclusive. Attempting to enable one while the other is active will result in a command error. The ALC
mode is also inactive during transient execution, even if it is enabled.
Command Syntax [SOURce:]VOLTage:ALC <bool>
Parameters 0 | OFF | 1 | ON | 2 | REG
Unit V/S (volts per second)
*RST Value 0
Examples VOLT:ALC 1
Query Syntax [SOURce:]VOLTage:ALC?
Returned Parameters 0 | 1 | 2
Related Commands OUTP:IMP:STAT
VOLTage
Phase Selectable
This command programs the AC rms, DC or offset output voltage level of the power source. The
voltage mode must be set for AC to accept an AC voltage. The Voltage mode must also be set to
AC+DC to accept a DC offset value.
Command Syntax [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude][:AC] <NRf+>
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]:DC] <NRf+>
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]:OFFSet<NRf
+>
Parameters 0 to maximum voltage range specified by the LIMit:VOLTage
command
Unit V (rms voltage)
*RST Value 0 volt
Examples VOLT 100 VOLT:LEV 10
Query Syntax [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]?
Returned Parameters <NR2>
Related Commands [SOUR:]MODE VOLT:TRIG
VOLTage:TRIGgered
Phase Selectable
This command selects the AC rms or DC amplitude that the output voltage will be set to during a
triggered step or pulse transient.
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