AMETEK PLA-PLW - Manual (Page 122)

Set the Peak Level (> Main Level Setting) to load the DUT Æ CURR:TLEV
Set the Power Interruption Pulse Width Æ TRAN:PINT:TWID 200 ȝs ~ 25000 ȝs
Set the System Bandwidth Æ (OSC3, OSC2, OSC1 and DEFAULT)
Activate PINT (Power Interruption Mode) Æ TRAN:MOD PINT or TRAN:MOD 7
Activate the INPUT Æ INP 1 or INP ON
Activate the PULSE mode Æ TRAN 1 or TRAN ON
Send TRIGGER signal to activate Power Interruption Æ *TRG or TRIG
2. UNDER-TEMPERATURE TRIP WARNING MESSAGE (UTT):
When the heat sink temperature persists at 15 degrees Celsius or below for longer than 10
minutes, a UTT warning message will display on the front panel along with an operational
status register bit (bit 11). The warning message indicates the eLOAD is operating
continuously at low temperatures that may cause condensation; please verify inlet/outlet
water pressure differential and temperature are within requirements. Proceed testing with
caution to ensure the UTT message does not continue. If message still occurs, please contact
AM
ETEK Technical Support @ 800.654.9838.
Local Control
NONE
Remote Programming
NONE
Input Contactor Control:
AMREL’s eLOAD provides a selectable dc Contactor control signal via the INPUT
CONTACTOR feature. A TTL active high signal (+5Vdc) or TTL active low signal
(0Vdc) will be delivered to the Port_0 (Pin 9) of the 12-pin External Programming Port
prior to the eLOAD input turning on and after the eLOAD turns off, to activate/deactivate
an external contactor/relay. To allow time for an external dc contactor to open or close
and activate the output of the DUT, the Input Contactor feature offers a programmable
delay (50 ~ 500ms) that will delay the eLOAD input during load on sequence and the
Port_0 signal during load off sequence. The TTL signal is useful for controlling driver
circuits for external relays or contactors to isolate an eLOAD system from high power
DUT during the off-state of the testing application.
Port 0+ @ On TTL-High Control Signal at input on;
Port 0- @ On TTL-Low Control Signal at input on;
Disable Disable Input Contactor function; Port_0 function released
Delay Time delay constant before input on and after input off.
Parameter: 50~500ms
Typical eLOAD Turn-on Sequence
1) Close External Contactor/Relay
2) DUT output On (During Delay)
3) eLOAD input On
Typical eLOAD Turn-off Sequence
C-2