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2 protection subsystem, 3 [source:]measure subsystem, 4 [source:]input, [source:]output subsystems – KEPCO EL Series Electronic Load Operator Manual P/N 243-1295 Firmware Version 3.87 to 3.xx User Manual

Page 48: Protection subsystem -12, Source:]measure subsystem -12, Source:]input, [source:]output subsystems -12

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SERIES EL 022013

3.13.3.2 PROTECTION SUBSYSTEM

This subsystem establishes limits for voltage, current and power.

3.13.3.3 [SOURCE:]MEASURE SUBSYSTEM

This query subsystem returns the voltage, current and power measured at the LOAD terminals.

3.13.3.4 [SOURCE:]INPUT, [SOURCE:]OUTPUT SUBSYSTEMS

This subsystem controls whether the UUT is engaged (on) or disengaged (off) from the load.

3.13.3.5 [SOURCE:]VOLTAGE, [SOURCE:]CURRENT, [SOURCE:]POWER SUBSYSTEMS

These subsystems set the mode and establish setpoints for each mode. Also establish protec-
tion limits and the range of the front panel display (VOLTS, AMPS or KW, respectively) for each
mode.

3.13.3.6 [SOURCE:]RESISTANCE, [SOURCE:]CONDUCTANCE SUBSYSTEMS

These subsystems set the mode and establish setpoints for each mode.

PROTECTION COMMANDS. Terminate command with ? to display the protection setting for that mode.
Exceeding these user-defined protection levels disengages the UUT and displays fault indication (see
PAR. 3.3.1.)

CURRent:PROTection

Set maximum Current level in Amperes

VOLTage:PROTection:OVER

Set maximum Voltage level in volts

VOLTage:PROTection:UNDer

Set minimum Voltage level in volts

POWer:PROTection

Set maximum load Power in watts

STATUS CLEAR COMMANDS. Trip error prevents INPut 1 or OUTPut 1 from engaging the load. See STA-
Tus:QUEStionable register for error definitions (see PAR. 3.13.7.3
)

CURRent:PROTection:STATe 0

Clear overcurrent error

POWer:PROTection:STATe 0

Clear over power error

VOLTage:PROTection:UNDer:STATe

Clear undervoltage error

VOLTage:PROTection:OVER:STATe

Clear overvoltage error

VOLTMETER RANGE COMMANDS. Terminate command with ? to display the range setting. The voltme-
ter range is determined by the lower of: the range setting below and the lowest range that includes the
current VOLT setting.

SYSTem:RANGe:VOLTage 100V

Set Voltage measurement range 0 – 100V

SYSTem:RANGe:VOLTage 200V

Set Voltage measurement range 0 – 200V

SYSTem:RANGe:VOLTage 400V

Set Voltage measurement range 0 – 400V

SYSTem:RANGe:VOLTage 800V

Set Voltage measurement range 0 – 800V

= Numeric Values with or without a decimal point. Examples: 0.0156, 15.6, 156 or 1.56E+3 (scientific

notation: digits with decimal point and exponent).

NOTE:

If commands that expect a boolean are entered without an argument, the argument is interpreted as 0.

TABLE 3-2. REMOTE OPERATION COMMAND SUMMARY (CONTINUED)

Command

Function