Ametek Amrel PLA 2U, Operation Manual

Page: 87 / 162

M470039-01 REV-F Page 86
t
Transient
Level
TRIGGER MODE
In trigger mode, the eLoa d wa its for a trigger signa l from the selected trigger source
(HOLD (local), BUS, EXTERNAL and
ETHERNET)
to switch to the user configured trigger leve l. The trigger level ca n be set to a va lue grea ter or less tha n the
ma in va lue. After ea ch trigge r level is rea ched, a nother trigge r level ca n be set and re-triggered to the new trigger level.
The trigger opera tion mode is only a va ila ble via remote opera tion. The trigger signa l ca n be sent from a ny of the trigger
sources or via the front pa nel TRIGGER hot k ey.
Note: All the operating modes can be programmed via the front panel or using GPIB/RS232/ETHERNET/ USB Interfaces
with the exception of TRIGGER operation, which is remotely controlled . In addition, each transient mode besides
CONTIN UOUS can be triggered through a negative edge triggered external TTL compatible signal. CONTINUOUS
Transient Operation will start as soon as PULSE is activated, and cannot be activated using a trigger signal.
Setting the Triggered Level:
1. Connect the eLoa d to a PC via a ny of the interfa ces (GPIB/USB/Ethernet/RS-232)
2. Communica te with the instrument using e-Tool 1, a nd confirm connection by sending the comma nd *IDN?
3. The returned pa ra meter should indica te the eLoa d’s firmwa re revision number
4.
Select the Transient Mode via “TR:MOD 0” command, which will set the eLoad for Trigger operation
5. Select the Trigger Source via TRIG:SOUR a nd followed by one of the following selections EXT (externa l
trigger), BUS (Bus Trigger), ETH (Ethernet Trigger), a nd HOLD (Loca l Trigger). Plea se refer to the ta ble 3.1
for further trigger source deta ils.
6. Set the Trigger Dela y to the desired a mount of time via TRIG:DEL a nd time entry in ms.
7. Set the Triggered Level via CURR:TRIG (current), VOLT:TRIG (volta ge), RES:TRIG (resista nce) a nd
POW:TRIG (power) comma nd, followed by the desired numerica l va lue, such a s 1 or 15.
8. Set the Ma in Level via CURR, VOLT, RES AND POW comma nd, followed by the desired numerica l va lue.
9. Turn the input on via the INP 1 comma nd.
10. Trigger the eLoa d via Trig or *TRG.
Note: The “TRIG” command will trigger under all trigger sources with the exception of Ethernet (Ethernet Trigger
is reserved for the MCU-1 Controller), and the *TRG command will only work when the trigger source is selected to
“BUS.” Please refer to table 3.1 for the appropriate trigger commands for the various trigg er sources.
Main
Level
Transient off
Trigger 1
Trigger 2