Ametek SEQUOIA Series - Page 284

Sequoia / Tahoe Series User Manual California Instruments
M447352-01 REV-A 261
8.1.4 Saving Transient List Programs
When the power source is turned off, the transient list that was programmed is not automatically saved.
Therefore, the programmed transient list would be lost if the unit is turned off. However, transient programs
could be saved in nonvolatile memory for later recall. This allows multiple transient list programs to be
recalled quickly without the need to enter all parameters each time. Transient lists are stored as part of
the overall power source operational configuration state in any of the available profile state registers; refer
to the CONFIGURATION screen in Section 5. To save a transient list, proceed as follows:
1. After setting up a transient list, run it so that it is transferred to main memory.
2. Tap on the PROFILES field in the CONFIGURATION menu; refer to Figure 8-14.
3. Tap on one of the fifteen PROFILEx buttons (x = 0 to 14) to select it.
4. Tap on the NAME field to open the NAME sub-menu to assign a unique name to the profile.
Otherwise, tap on the SAVE field to save the configuration state of the power source to a profile
memory register.
5. The profile could be recalled later by selecting the appropriately selection-button and tapping on
the LOAD field.
Figure 8-14. CONFIGURATION Menu, PROFILES
Selection
8.2 Current Transient Programming
Current transient programming is only applicable for E-Load mode of operation and it provides a precise
timing control over output current changes. This mode of operation can be used to test a product for
susceptibility to common AC and DC power conditions such as surges, sags, brownouts and spikes. By
combining transient list programming with custom waveforms complex AC or DC conditions can be
simulated on the output of the power source. Refer to Section 5 for specifics on using the display menus
to program the transients from the front panel. The full capability of transients programming could be
accessed through the remote digital interface using SCPI commands or the Sequoia Virtual Panels GUI;
refer to the Sequoia Series Programming Manual P/N M447353-01, refer to AMETEK PPD website,
www.programmablepower.com, to download latest version.
8.2.1 Using Transient Modes
Output transients are used to:
 Synchronize output changes with a particular phase of the current waveform.
 Synchronize output changes with internal or external trigger signals.
 Simulate surge, sag, and dropout conditions with precise control of duration and phase.