Operating instructions
Language Dictionary
47
For example, assume the electronic load is in the 60 A range and the main current level
(CURR:LEV) is 30 A. Switching to the 6 A range will reduce the current to the maximum
of that range, or 6 A. However, if another parameter (such as CURR:TRIG) was already
within the new range (e.g., 4 A), then it will remain at that level in the new range. Of
course, there is no change in value when switching from the lower range to the higher
range. However, the accuracy of the programmed value may be compromised because of
the reduced resolution of the higher range.
Command Syntax
CURRent:RANGe <NRf+>
Parameters
See Table 4-1 and the Operating Manual of the electronic load model
Value Coupling
This command affects the following parameters:
CURR:LEVel CURR:TLEVel
Examples
CURR: RANG 60; LEV 25 . 25 Set current to 25.25 A on 60-ampere range
CURR:RANG 6; :TRIG 4.5 In previous example, change range to 6 A and set Triggered
level to 4.5 A. Due to coupling, the main level will drop to 6 A
and remain there until a trigger occurs.
Query Syntax
CURR:RANG?
CURR:RANG? MAX
CURR:RANG? MIN
Returned Parameters
<NR3> CURR:RANG? returns the present current range in amperes.
CURR:RANG? MAX and CURR:RANG? MIN return the maximum and minimum
programmable ranges for the electronic load.
Related Commands
CURR:[LEV] CURR:TRIG CURR:TLEV
CURR:SLEW Channel-Specific Current Command/Query
Description
This command sets the current programming slew rate for both CC mode ranges and the
resistance programming slew rate for the middle and high CR mode ranges. The
programmed slew rate is used for all programmed current changes except INPut ON or
OFF. The hardware implements discrete slew rates (refer to the electronic load Operating
Manual) and automatically selects the one that is closest to the programmed value. To
determine the actual rate, use the query (CURR:SLEW?).
Command Syntax
CURRent:SLEW <NRf+>
Parameters
See Table 4-1 and the Operating Manual of the electronic load model.
Examples
CURRENT:SLEW MAX Set slew rate for maximum of present current range
CURR: RANGE MAX; SLEW 4E5 Set range to 60 A and slew rate to 400,000 A/s
(400 mA/ยตs)
Note
Programming a slew rate value greater than MAX sets the slew rate to maximum without
generating an error message.