Trigger Operation - Ametek Amrel PLA Series Operation Manual

one level to another is less than 5% of full rating, the small signal bandwidth of the load limits the minimum transition
time for all programmable slew rates. Because of this limitation, the actual transition time is longer than the expected time
based on the slew rate.
Continuous Transient Operation
Generate a repetitive pulse train switches between two load levels via CONT (hot key) key or SCPI command. The two
load levels in the transient operation are main level and transient level for each mode. The rate at which the level switches
between is determined by the slew time setting.
Pulsed Transient Operation
Generate a load change that returns to its original state after some time period via SINGLE (hot key) key or SCPI
commands.
Toggled Transient Operation
Toggled transient operation causes the electronic load input to alternate between two pre -defined load levels as in
Continuous Mode except that the transient points can be controlled by explicit triggers instead of an internal transien t
generator.
STEP Operation:
Step mode lets you generate complex sequences of input changes with rapid, precise timing, which may be synchronized
with internal or external signals.
You can program up to 256 settings (or steps) in the profile, the time interval (dwell) that each setting is maintained, the
number of times that the list will be executed, and the setting's change in response to the triggers. The step data can be
stored in Profile 0, 1, 2 or 3 via either the front panel or the digital interfaces. Use RCL command to recall the saved state.

Trigger Operation:

The electronic load has various triggering modes to allow synchronization with other test equipment or events.
Triggering a preset level
Transfers all pending preset levels to the actual level. For the presently active mode, the new level appears at the input.
For the modes which are not presently active, the present levels will not take effect at the input until the applicable mode
becomes active. However, you must first initiate the trigger function by executing the TRIG:IMMED command.
Triggering a transient pulse
A trigger signal will generate a transient pulse of programmable width when pulsed transient operation is in effect.
Triggers can be sent from the front panel by pressing the TRIGGER key or via Remote Interface.
Toggling
A trigger signal will change the input between the main level and the transient level when toggled transient operation is in
effect. Triggers can be sent from the front panel by pressing the TRIGGER key or via Remote Interface.
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