Operations introduction
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Constant voltage operation mode (CV)
Constant resistance operation mode (CR)
Constant power operation mode (CW)
4.3.1 Constant current (CC) mode
In this mode, the electronic load will sink a current in accordance with the
programmed value regardless of the input voltage. See figure 4-1.
Fig 4-1 CC mode
Ranges
When work in CC mode, you can press key to enter the menu, when it
show RANGE, you can select either of the two overlapping ranges: <LOW
RANGE> or <HIGH RANGE>. Current can be edited in either of the two ranges.
Low range will supply higher accuracy and better resolution when you set lower
current. If any value you set is outside the maximum value of the LOW RANGE,
you should select HIGH RANGE. If the electronic load work in remote control
mode（USB / RS232 / Ether-net）, you can use CURR:RANG command to
switch current range.
Immediate Current value
Set the current level via front panel or sending command (CURR <n>), if the
load is in CC mode, the new setting current level immediately changes the input
at a rate determined by the slew rate. If the load is not in CC mode, the setting
current level will be saved for use, until switch to CC mode.
Triggered current level
This function only can be used in remote control mode, when the load is in the
CC mode, after receive the CURR:TRIG <NRF+> command, subsequent
triggers will have no effect on the input unless another triggering signal is sent.
CURR command will cover the CURR:TRIG <NRF+> value, this function is
used to synchronize Multi-channel input load changes.
Transient current level
Set A/B transient current level on front panel or by remote operation, the load
can continuously toggle between the two levels when transient operation is
turned on.
Set slew rate
The current slew rate determines the rate at which the input current to a module
changes to a new programmed value. You can set current level’s rise/fall slew
rate on the front panel or by remote operation. The slew rate programmed act in
effect to the immediate, triggered and transient current level changes.
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