Keithley 6430, Instruction Manual

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SCPI Command Reference 17-69
Set voltage limit
[:LEVel] <n>
:SOURce[1]:VOLTage:PROTection[:LEVel] <n> Set voltage limit for V-Source
Parameters
<n> = -210 to 210 Specify V-Source limit
20 Set limit to 20V
40 Set limit to 40V
60 Set limit to 60V
80 Set limit to 80V
100 Set limit to 100V
120 Set limit to 120V
160 Set limit to 160V
161 to 210 Set limit to NONE
NONE Set limit to 210V
DEFault Set limit to 210V (NONE)
MINimum Set limit to 20V
MAXimum Set limit to 210V (NONE)
Query
[:LIMit]? Query limit level
[:LIMit]? DEFault Query *RST default limit
[:LIMit]? MINimum Query lowest allowable limit
[:LIMit]? MAXimum Query highest allowable limit
Description
This command is used to set the Over Voltage Protection (OVP) limit for the
V-Source. The V-Source output will not exceed the selected limit. An
exception to this is a parameter value that exceeds 160V. Exceeding this
value allows the V-Source to output its maximum voltage. The OVP limit is
also enforced when in the I-Source Mode.
The limit parameter values are magnitudes and are in effect for both positive
and negative output voltage. You can express the limit as a positive or nega-
tive value.
If you specify a value that is less than the lowest limit, the lowest limit will
be selected. If you specify a value that is between limits, the lower limit will
be selected. For example, if you specify a value of 110, the 100V limit will
be selected.
WARNING Even with the voltage protection limit set to the lowest value (20V),
NEVER touch anything connected to the terminals of the SourceMeter
when the OUTPUT is ON. Always assume that a hazardous voltage
(>30V rms) is present when the OUTPUT is ON.
To prevent damage to DUT (devices under test) or external circuitry, DO
NOT program the V-Source to levels that exceed the voltage protection
limit.