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AMETEK PLA-PLW User Manual

Page 93

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VOLT:SLEW
This command sets the voltage slew rate in CV 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 closet to the VOLT:SLEW value. To
determine the actual value, use the query VOLT:SLEW?.

Parameter:

0 to maximum value; MIN; MAX

Unit:

V/

Ps

Example: “VOLT:SLEW 6”- sets the voltage slew rate to 6V/

Ps

VOLT:DUTY
This command sets pulse duty cycle, as a percentage of the total cycle, of continuous transient mode in CV 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: “VOLT:DUTY 50” – sets a 50% duty cycle for transient voltage mode.

VOLT: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:

“VOLT:FREQ 1000” – sets a 1000Hz frequency for transient voltage mode.

VOLT:LIM:MAX
This command sets and queries the maximum input voltage level that is to be applied immediately in the constant voltage
mode.

Parameter:

0 to maximum value; MIN; MAX

Units:

Volt.

Example: “VOLT:LIM:MAX 50” – sets maximum voltage input level to 50 Volts

VOLT:LIM:MIN
This command sets and queries the minimum input voltage level that is to be applied immediately in the constant voltage
mode.

Parameter:

0 to maximum value; MIN; MAX

Units:

Volt.

Example: “VOLT:LIM:MIN 50” – sets minimum voltage input level to 50 Volts.

POWer

ŸPower Programming Functions

This subsystem programs the constant power mode functions of the Electronic Load. The IEEE 488.1 command, “PSET”
and “SET” (if current active mode is CP mode), can also be used.

POW
This command sets the input power level that is to be applied immediately in the constant power mode. If the Electronic
Load is not in the CP mode when the command is sent, the programmed level is saved and is applied 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

Units:

Watt.

Example: “POW 50” – sets current input level to 50Watts.

POW:PROT:OVER
This command sets a protection limit to the input power that the Electronic Load will accept. When the input power
reaches the programmed power limit for the programmed delay period, the Electronic Load input is off.

Parameter:

0 to maximum value; MIN; MAX

Units:

Watt.

Example: “POW:PROT:OVER 12”- sets the overpower protection to 120 Watts.

POW:PROT:OVER:DEL
This command sets the delay time for over-power protection. When the input power reaches 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:OVER:DEL 1200”- sets the overpower protection delay time to 1200 ms.

POW:PROT:UND
This command sets an under power protection limit to the input power that the Electronic Load accepts. When the input
power falls below the under power protection limit for the programmed delay period, the load input is off.

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