AMETEK PLA-PLW User Manual
Page 94

Parameter:
0 to maximum value; MIN; MAX
Units:
Watt.
Example: “POW:PROT:UND 1.5”- sets the under power protection to 1.5 Watts.
POW:PROT:UNDER:DEL
This command sets the delay time for under-power protection. When the input power falls below the programmed power
limit for the programmed delay period, the Electronic Load input is off.
Parameter:
0 to maximum value
Units:
ms.
Example: “POW:PROT:UNDER:DEL 1200”- sets the under-power protection delay time to 1200 ms.
POW:TRIG
This command sets the input voltage level that is to be applied on occurrence of a trigger in the constant power mode. If
the Electronic Load is not in the CP mode when the command is sent, the programmed TRIG level becomes a stored
IMM level that takes effect when the Load changes to CP mode. The rate of input change is in accord with the slew rate
in effect.
Parameter:
0 to maximum value; MIN; MAX
Unit:
Watt.
Example: “POW:TRIG 100” – sets the power trigger value to 100 W.
POW:TLEV
This command sets the transient voltage level in CP mode. When the transient subsystem is on, the Electronic Load will
switch between the main level and transient level at a rate determined by the slew rate in effect. If the programmed
transient power level is below the main voltage level, the switching will not occur until the main level is below the value
of POW:TLEV. The IEEE488.1 command, “PTR” can also be used.
Parameter:
0 to maximum value; MIN; MAX
Unit:
Watt
Example: “POW: TLEV 50” – sets the power trigger level to 50 W
POW:SLEW
This command sets the power slew rate in CP mode. The programmed slew rate is in effect for all voltage changes except
INP:ON or OFF. The hardware implementation selects a slew rate that is closest to the POW:SLEW value. To determine
the actual value, use the query POW:SLEW?.
Parameter:
0 to maximum value; MIN; MAX
Unit:
Watt/
Ps
Example: “POW:SLEW 6”- sets the power slew rate to 6W/
Ps
POW:DUTY
This command sets pulse duty cycle, as a percentage of the total cycle, of continuous transient mode in CP mode. If the
Electronic Load is operating in another mode, the duty cycle is stored until the Load changes to continuous mode.
Parameter:
2 to 98; MIN; MAX
Unit:
%
Example: “POW:DUTY 50” – sets a 50% duty cycle for transient power mode.
POW:FREQ
This command sets pulse frequency of continuous transient mode in Hz. If the Electronic Load is operating in another
mode, the pulse frequency is stored until the Load changes to continuous mode.
Parameter:
0.25 to 20000; MIN; MAX
Unit:
Hz
Example: “POW:FREQ 1000” – sets a 1000Hz frequency for transient power mode.
POW:LIM:MAX
This command sets and queries the maximum input power level that is to be applied immediately in the constant power
mode.
Parameter:
0 to maximum value; MIN; MAX
Units:
Watt.
Example: “POW:LIM:MAX 50” – sets maximum power input level to 50 Watts.
POW:LIM:MIN
This command sets and queries the minimum input power level that is to be applied immediately in the constant power
mode.
Parameter:
0 to maximum value; MIN; MAX
Units:
Watt.
Example: “POW:LIM:MIN 50” – sets minimum power input level to 50 Watts.
4-8