Ametek PLA-PLW Programming Manual Manuel d'utilisateur

PROGRAMMING MANUAL This manual covers: PLA & LPL Series Programmable Air-cooled Electronic Loads PLW Series Programmable Water-cooled Electron

9CCCOOOMMMMMMOOONNNCCCOOOMMMMMMAAANNNDDDSSSCommon commands begin with an * and consist of three letters (command) IEEE 488.2 standard to perform some

10Position Name 0 OPC Operation Complete. The electronic load has completed all pending operations. Programming *OPC causes this bit to be set when th

11Operation Complete Output Query. This query causes the electronic load to place an ASCII "1" in the Output Queue when all pending operati

12*RSTReset Command. This command resets the electronic load to a pre-defined state stored in profile 0. It is similar to “*RCL 0” command except t

13Returned Parameters <NR1>, Value: 0 to 255Suffix None*TRGImmediate Trigger Command. This command which is essentially the same as the Group

14RRROOOOOOTTT---LLLEEEVVVEEELLLCCCOOOMMMMMMAAANNNDDDSSSINTRODUCTIONRoot-level commands are those that are specific to the family of electronic loads.

15 10 = range 2 of immediate resistance calibration 11 = range 3 of immediate resistance calibration 12 = range 0 of immediate power calibrati

16calibration constants are lost unless they have been stored with CALibrate:SAVE. Command Syntax CALibrate:STATe <bool> Parameters 0 | 1 | OF

17CURRENT SUBSYSTEMThis subsystem programs the CC (constant-current mode) function of a single electronic load.[SOURce:]CURRent[:LEVel][:IMMediate], I

18Returned Parameters <NRf+>: “CURR?” and “CURR:TRIG?” return the presently programmed current levels. After a trigger signal or “ABORt”, “CURR

19incoming triggers while the input is shut down and will respond to the trigger as soon as the protection fault is cleared. The :PROTection:DELay com

20slew time value may be entered, the electronic load selects a slew time that is closest to the programmed value. MINimum sets the slew to the fastes

21Channel-Specific Current Command/Query. This command specifies the value of the programmed current level for the TRANsient input when the electroni

22INPUT COMMANDSThese commands control the input of the electronic load. The INPut and OUTput commands are equivalent. The CURRent, POWer, RESistance

23STEP COMMANDSSTEP commands let you program complex sequences of input changes with rapid, precise timing, and synchronized with trigger signals. Eac

24Unit ms Query Syntax STEP:CURRent:TIMe? <NR1> Parameters <NR1> point index Returned Parameters <NR1> dwelling time value in m

25[SOURce:]STEP:POWer:STATeThis command specifies how to process the STEP sequencing. The following parameters may be specified.Ϯ ON Causes the entire

26specified.Ϯ ON Causes the entire STEP to be executed immediately, paced by its dwell delays. As each dwell delay elapses, the next point is immediat

27Ϯ ONCE Causes the STEP to advance only one point after each trigger. Triggers that arrive during a dwell delay are ignoredϮ AUTO Causes the entire S

WARRANTY INFORMATION CERTIFICATION AMETEK Programmable Power, Inc. (“AMETEK”), certifies that this product met its published specifications at time of

28MEASUREMENT COMMANDSMEASure:CURRent[:DC]? MEASure:POWer[:DC]?MEASure:RESistance[:DC]?MEASure:VOLTage[:DC]?MEASure:VOLTage:INPut? This function consi

29MODE COMMANDS[SOURce:]MODeThe commands sets and query the input regulation mode of the electronic load. CURRent constant current mode POWer cons

30PORT COMMANDSThese commands control the general purpose digital port on the electronic load modules. PORT This command sets the state of the general

31POWER SUBSYSTEMThis subsystem programs the CP (constant-power mode) function of a single electronic load. [SOURce:]POWer[:LEVel][:IMMediate], PSET [

32Returned Parameters <NRf+> POW? and POW:TRIG? return the presently programmed power levels. After a trigger or ABORt, POWer:TRIG? returns the

33incoming triggers while the input is shut down and will respond to the trigger as soon as the protection fault is cleared. The :PROTection:DELay com

34programmed value. MINimum sets the slew to the fastest possible time. MAXimum sets the slew to the slowest time. Slew times less than the minimum va

35 If the electronic load is not in CP Mode, the level will still be set, even if it is less than the presently programmed input level. [SOURce:]POW

36RESISTANCE SUBSYSTEMThis subsystem programs the CR (constant-resistance mode) function of a single electronic load.[SOURce:]RESistance[:LEVel][:IMMe

37Returned Parameters <NR3> RES? and RES:TRIG? return the presently programmed resistance levels. After a trigger or ABORt, RESistance:TRIG? re

About AMETEK AMETEK Programmable Power, Inc., a Division of AMETEK, Inc., is a global leader in the design and manufacture of precision, programmable

38Command Syntax RESistance:SLEW:NEGative <NRf+>Parameters slew time value, refer to model specifications | MIN | MAX Unit ms Query Syntax

39Parameters pulse width value, refer to model’s specification | MAX | MIN Unit ms Query Syntax RESistance:TRANsient:TWIDth? RESistance:TWIDth?

40STATUS COMMANDSThese commands program the electronic load status registers. The electronic load has five groups of status registers; Questionable St

41STATus:OPERation:NTRansition STATus:OPERation:PTRansition These commands set or read the value of the Operation NTR (Negative-Transition) and PTR (P

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41and Operation Event registers to cause the following actions. This command is not channel specific, it applies to the entire mainframe. Ϯ When a bit

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43STATus:QUEStionable?This query returns the value of the Questionable Event register. The Event register is a read-only register that holds (latches)

44SYSTEM COMMANDSSystem commands control the system-level functions of the electronic load that are not directly related to input control or measureme

45Returned Parameters <NR1> integer value representing EOS code SYSTem:CROSs:MODe:STATeThis command sets or queries the cross mode state. Comm

ContentsCommon Commands ...

46 0 No error -100 Command error[generic] -101 Invalid character

47SYSTem:EXTernal:CONTrol This command sets or queries the syntax mode state Command Syntax SYSTem:EXTernal:CONTrol <NR1> Parameters <NR1&g

48 aaa = maximum power bbb = maximum voltage ccc = maximum current ddd = maximum resistanceExample 300W-60V-60A-10KOHMSYSTem:NET:ADDRes

49Returned Parameters <AARD> Four fields: <serial> <dhcp> <ip address> <idn string> <serial> serial number,

50TRANSIENT COMMANDSThese commands program the transient generator of the electronic load. The transient generator programs a second (transient) level

51TRIGGER COMMANDSTrigger commands controls the triggering of the electronic load. See also CURRent:TRIGgered, POWer:TRIGgered, RESistance:TRIGgered,

52Query Syntax TRIGger:SOURce?Returned Parameters <CRD> A string representing trigger source.

53UTILITY COMMANDSUTILity:RANGe This command selects and queries the range control mode. Command Syntax UTILity:RANGe <bool> Parameters <bo

54VOLTAGE SUBSYSTEMThis subsystem programs the CV (constant-voltage mode) function of a single electronic load.[SOURce:]VOLTage[:LEVel][:IMMediate], V

55 return the presently programmed voltage levels. After a trigger or ABORt, VOLTage:TRIG? returns the same value as VOLTage? . VOLTage? MAX, VO

[SOURce:]INPut... 22 [SOURce:]OUTPut...

56incoming triggers while the input is shut down and will respond to the trigger as soon as the protection fault is cleared. The :PROTection:DELay com

57Parameters slew time, refer to model specifications | MIN | MAXUnit ms [SOURce:]VOLTage:SLEW:NEGativeThis command sets the slew time of the volta

58[SOURce:]VOLTage[:TRANsient]:TWIDthThis command sets the pulse width of the transients when the generator is in PULSe mode. Command Syntax VOLTage:

59PPPRRROOOGGGRRRAAAMMMMMMIIINNNGGGIIINNNTTTRRROOODDDUUUCCCTTTIIIOOONNNPOWER-ON INITIALIZATION When the electronic load is first turned power on, it w

60INPUT POWERAll models have a programmable power function. The command to program the current is:POWer <n> where <n> is the input power i

61VOLTage? MAX Overvoltage Protection The electronic load can also be programmed to turn off its input if the voltage protection level is reached. Th

62MODe:CURRent ; selects the CC mode TRANsient:MODE TRIGgered ; configures transient mode CURRent 5 ; immediate level CURRent:TRIGgered 10 ;

63PULSE TRANSIENTSPulsed transient operation generates a load change that returns to its original state after some time period. It is similar to conti

64PROGRAMMING STEPSSTEP mode lets you generate complex sequences of input changes with rapid, precise timing, which may be synchronized with internal

65STATE AUTOMODe:CURRent STEP:CURRent[:LEVel] 1,15 ; Program the STEP of input values for each function. The STEP commands take a comma-separated S

[SOURce:]POWer:[TRANsient:]TWIDth... 35 Resistance Subsystem...

66INPut ON STEP:CURRent:STATe ONCE ; the entire STEP to be executed sequentially after the starting trigger, paced by its dwell delays. As each dwell

67MAKING MEASUREMENTS The electronic load has the ability to make several types of voltage or current measurements. The measurement capabilities of th

68SSSIIIMMMPPPLLLIIICCCIIITTTYYYCCCOOOMMMMMMAAANNNDDDSSSThe section introduces some simplicity commands that depend on current operating mode. DUTY &l

69This command sets the slew time for positive going transitions. MINimum sets the slew to the fastest possible time. MAXimum sets the slew to the slo

70CCCAAALLLIIIBBBRRRAAATTTIIIOOONNNEEEXXXAAAMMMPPPLLLEEESSSVOLTAGE CALIBRATIONCALibrate:MEASure:HIGH 32000 CALibrate:MEASure:LOW 6400 CALibrate:TRANsi

TRIGger[:IMMediate] ....... 51 TRIGger:DELay ...

MLEV <NRf+> ......................... 68 MLEV:TRIG <NRf+> ...