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5 - Front Panel Operation
66
Set transient operation for Pulse mode
In this example, assume that the CC mode is active, the slew rate is at the factory default setting (maximum
rate), and the applicable transient operation parameters have been set as follows: pulse mode, main current level
= 5 A, transient current level = 10 A, pulse width = 1 millisecond.
In this example, the electronic load starts conduction at the main current level setting (5 amps). When the
transient mode is turned on and an external trigger signal is received, module input current will slew to and
remain at 10 A for the remainder of the 10 millisecond time period, then slew to and remain at 5 A until another
trigger is received. Any triggers that occur during the time the transient level is in effect will extend the pulse
by another 10 milliseconds. Figure 5-6 shows the waveform that would result in this pulsed transient example.
Figure 5-6. Pulsed Transient Operation
Action Display
1. On the Function keypad, press Current. On the Entry keypad, press 5 Enter .CURR 5
2. On the Function keypad, press Current. On the Function keypad, press Q key until
transient current is displayed.
C:TLEV
3. On the Entry keypad press 10 Enter. C:TLEV 10
4. On the Function keypad, press Tran. On the Function keypad, press Q key until
transient pulse width is displayed.
T:TWID
5.
On the Entry keypad press 0.01 Enter.
T:TWID 0.01
6. On the Function keypad, press Tran. On the Function keypad, press Q key until
transient mode is displayed.
T:MODE
7. To select the pulse mode, press the Q
QQ
QInput or R
RR
R Input key until the Pulse mode
is displayed. Then press Enter.
T:MODE PULS
8. On the Function keypad, press the Tran key and select ON to activate the transient
mode.
TRAN ON
9.
On the Function keypad, press Trigger Control, then press Enter. This initiates
the trigger system.
INIT:IMMED
10
Press Shift and Trigger. This starts the pulse. Repeat this step for additional pulses.
Set transient operation for Toggled mode
In this example, assume that the CC mode is active, the slew rate is at the factory default setting (maximum
rate), and the applicable transient operation parameters have been set as follows: toggle mode, main current
level = 5 A, transient current level = 10 A.
The operation of toggled mode is similar to that described for continuous and pulse operation, except that each
time a trigger is received the input alternates between the main and transient current levels. Figure 5-7 shows the
waveform that would result for this toggled transient operation example