SECTION 7: CONNECTORS, APPLICATIONS & PROTECTION FEATURES
Entire Contents Copyright
2014 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
42L Series Modular DC Load Operation Manual
Page 56 of 88
KEY# Description
c.
PSTOP: setting the stop power, The LCD display shows “OPP”, “PSTOP” and
1200.0W (or initial setup value) from top to bottom 5 digits LCD display, the
setting range is 0.00W to the full scale of the CP mode specification. The setting is
by rotating the dial.
d.
Vth: Setting threshold voltage; The LCD display shows “OPP”, “Vth” and 0.50V (or
initial setup value) from top to bottom 5 digits LCD display, the setting range is
0.00V to the full scale of the Voltage specification. The setting is by rotating the
dial.
3.
START/STOP Test key. Press START/STOP key to start or stop the OPP test when the OPP
test function is enabled.
The load will go to the “ON” state automatically when the “START/STOP” key is pressed and
start the OPP test. The load will return to the “OFF” state automatically when the
“START/STOP” key is pressed to stop the OPP test. The load will remain in the “ON” state if
the load was “ON” before OPP test execution.
The OPP test function tests the UUT’s over power protection function. The OPP test will start
sinking current from PSTART and increase power by PSTEP until the UUT’s output voltage drops
below the threshold voltage (V-th setting), and the OPP trip point is between the P_Hi and P_Lo
limit settings. The lower 5- digits LCD display will shows "PASS", otherwise it will show "FAIL".
Press any key to return to normal mode LCD display.