AMETEK PLA-PLW - Manual (Page 92)

Parameter: 0 to maximum value; MIN; MAX Units: Ohm.
Example: “RES:LIM:MIN 50” – sets minimum resistance input level to 50 Ohms.
VOLTage ŸVoltage Programming Functions
This subsystem programs the constant voltage mode functions of the Electronic Load. The IEEE488.1 command,
“VSET” and “SET” (if current active mode is CV mode), can also be used.
VOLT
This command sets the input voltage level that is to be applied immediately in the constant voltage mode. If the
Electronic Load is not in the CV mode when the command is sent, the programmed level is saved to be applied when the
Load changes to CV mode. The rate of input change is in accord with the slew rate in effect.
Parameter: 0 to maximum value; MIN; MAX Unit: Volt
Example: “VOLT 120” – sets the voltage level to 120V.
VOLT:PROT:OVER
This command sets a protection limit to the input voltage that the Electronic Load will shunt. When the input current
reaches the programmed voltage limit for the programmed delay period, the Electronic Load input is off and shunts no
voltage.
Parameter: 0 to maximum value; MIN; MAX Units: Volt.
Example: “VOLT:PROT:OVER 12”- sets the over voltage protection to 12 Volts.
VOLT:PROT:OVER:DEL
This command sets the delay times in millisecond for over-voltage protection. When the input voltage reaches the
programmed voltage limit for the programmed delay period, the Electronic Load input is off and shunts no voltage.
Parameter: 0 to maximum value; MIN; MAX Units: ms
Example: “VOLT:PROT:OVER:DEL 1000”- sets the over voltage protection delay to 1000 ms.
VOLT:PROT:UND
This command sets an under voltage protection limit to the input voltage that the Electronic Load will shunt. When the
input voltage falls below the under voltage protection limit for the programmed delay period, the load input is off and
shunts no voltage.
Parameter: 0 to maximum value; MIN; MAX Units: Volt.
Example: “VOLT:PROT:UND 1.5”- sets the under voltage protection to 1.5Volts.
VOLT:PROT:UNDER:DEL
This command sets the delay times in millisecond for under-voltage protection. When the input voltage falls below the
programmed the under voltage protection limit for the programmed delay period, the Electronic Load input is off and
shunts no voltage.
Parameter: 0 to maximum value; Units: ms
Example: “VOLT:PROT:UNDER:DEL 1000”- sets the under voltage protection delay to 1000 ms.
VOLT:TRIG
This command sets the input voltage level that is to be applied on occurrence of a trigger in the constant voltage mode. If
the Electronic Load is not in the CV mode when the command is sent, the programmed TRIG level becomes a stored
IMM level that takes effect when the Load changes to CV mode. The rate of input change is in accord with the slew rate
in effect.
Parameter: 0 to maximum value; MIN; MAX Unit: Volt
Example: “VOLT:TRIG 100” – sets the voltage trigger value to 100V.
VOLT:TLEV
This command sets the transient voltage level in CV 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 voltage level is below the main voltage level, the switching will not occur until the main level is below the value
of VOLT:TLEV. The IEEE488.1 command, “VTR” can also be used.
Parameter: 0 to maximum value; MIN; MAX Unit: Volt
Example: “VOLT: TLEV 50” – sets the voltage trigger level to 50V
4-6