Operation Overview
3-7
MODE SELECT
CRL
Select Constant Resistance low voltage range
MODE SELECT
CRH
Select Constant Resistance high voltage range
Select range by pressing ENTER key
If input voltage is over the maximum of low range, you must select the high range.
Press MODE key first, and then use the UP or DOWN key to select voltage range. In
some modules (single channel/module) there are two resistance levels (A or B) for CR
function. Both states A/B use the same range. You can select A (CRL1 or CRH1) or
B (CRL2 or CRH2) through A/B key on the module’s keypad. Slew rate determines
the rate at which load level changes from one load level state to another.
Slew Rate (Rise, Fall A/
µ
S)
Slew rate in constant resistance mode is programmed in Amps/second.
3.5.3 Constant Voltage Mode
Figure 3-6 Constant Voltage Mode
In CV mode the Load will sink current to control the voltage source in programmed
value. In some modules (single channel/module) there are two voltage levels (A or B)
for CV function. You can select A (CV1) or B (CV2) through A/B key on the module’s
keypad. There are two response speeds of CV modes: fast and slow. The fast/slow
respond speed means the slew rate of current change.
Voltage and Current Range (High)
The voltage and current range of CR mode is high range.
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