Ametek Amrel PLA 2U, Operation Manual

Page: 98 / 162

M470039-01 REV-F Page 97
Pa ra meter: 0 to ma ximum va lue Units: ms.
Exa mple:
“POW:PROT:OVER:DEL 1200”- sets the overpower protection delay time to 1200 ms.
POW:PROT:UND
This comma nd sets a n under power protection limit to the input power tha t the Electronic Loa d a ccepts. When the input
power fa lls below the under power protection limit for the progra mmed dela y period, the loa d input is off.
Pa ra meter: 0 to ma ximum va lue; MIN; MAX Units: Wa tt.
Exa mple:
“POW:PROT:UND 1.5”- sets the under power protection to 1.5 Watts.
POW:PROT:UNDER:DEL
This command sets the dela y time for under-powe r protection. When the input power fa lls be low the progra mmed power
limit for the progra mmed dela y period, the Electronic Loa d input is off.
Pa ra meter: 0 to ma ximum va lue Units: ms.
Exa mple:
“POW:PROT:UNDER:DEL 1200”- sets the under-power protection delay time to 1200 ms.
POW:TRIG
This command sets the input volta ge leve l tha t is to be a pplied on occurrence of a trigge r in the constant power mode. If
the Electronic Load is not in the CP mode when the comma nd is sent, the progra mmed TRIG level becomes a stored
IMM level tha t ta kes effect when the Loa d cha nges to CP mode. The ra te of input change is in a ccord with the sle w ra te
in effect.
Pa ra meter: 0 to ma ximum va lue; MIN; MAX Unit: Wa tt.
Exa mple:
“POW:TRIG 100” – sets the power trigger value to 100 W.
POW:TLEV
This command sets the tra nsient volta ge level in C P mode. When the tra nsient subsystem is on, the Electronic Loa d will
switch between the ma in level a nd tra nsient level a t a ra te determined by the slew ra te in effect. If the programmed
tra nsient power level is be low the ma in volta ge level, the switching will not occur until the ma in level is belo w the va lue
of POW:TLEV. The IEEE488.1 command, “PTR” can also be used.
Pa ra meter: 0 to ma ximum va lue; MIN; MAX Unit: Wa tt
Exa mple:
“POW: TLEV 50” – sets the power trigger level to 50 W
POW:SLEW
This comma nd sets the power slew ra te in CP mode. The pro gra mmed slew ra te is in effect for a ll volta ge changes except
INP:ON or OFF. The ha rdwa re implementa tion selects a slew ra te tha t is closest to the POW:SLEW va lue. To determine
the a ctua l va lue, use the query POW:SLEW?.
Pa ra meter: 0 to ma ximum va lue; MIN; MAX Unit: Wa tt/

s
Exa mple:
“POW:SLEW 6”- sets the power slew rate to 6W/

s
POW:DUTY
This comma nd sets pulse duty cycle, a s a percenta ge of the tota l cycle, of continuous transient mode in CP mode. If the
Electronic Loa d is opera ting in a nother mode, the duty cycle is stored until the Loa d cha nges to continuous mode.
Pa ra meter: 2 to 98; MIN; MAX Unit: %
Exa mple:
“POW:DUTY 50” – sets a 50% duty cycle for transient power mode.
POW:FREQ
This comma nd sets pulse frequency of continuous tra nsient mode in Hz. If the Electronic Loa d is opera ting in a nother
mode, the pulse frequency is stored until the Loa d cha nges to continuous mode.
Pa ra meter: 0.25 to 20000; MIN; MAX Unit: Hz
Exa mple:
“POW:FREQ 1000” – sets a 1000Hz frequency for transient power mode.
POW:LIM:MAX
This comma nd sets a nd queries the ma ximum input power level tha t is to be applied immedia tely in the consta nt power
mode.
Pa ra meter: 0 to ma ximum va lue; MIN; MAX Units: Wa tt.
Exa mple:
“POW:LIM:MAX 50” – sets maximum power input level to 50 Watts.