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 73 of 88
7.9
Protection Features
The 42L Series electronic loads include the following protection features:
•
Over Voltage
•
Over Current
•
Over Power
•
Over Temperature
•
Reverse Polarity Indication
7.9.1
Over Voltage Protection
The over voltage protection circuit is set at a predetermined voltage depending on the load
model and
cannot
be changed. If the over voltage circuit has tripped, the load input turns
OFF immediately to prevent damaging the load. When an over voltage trip condition has
occurred, the digital current meter's LCD display will indicate "OVP".
CAUTION
Never apply the AC line voltage or an input voltage in excess of specified
max. rated voltage, or it may cause damage of the electronic load.
7.9.2
Over Current Protection
The load always monitors the current it is sinking. When the current sink is greater than
105% of the rated maximum current, the load module will turn load to OFF state internally.
When an over current condition has occurred, the digital current meter's LCD display will
indicate "OCP".
7.9.3
Over Power Protection
The load always monitors the power dissipated by the load. When the power dissipation is
greater than 105% of the rated power input, the load module will turn load to OFF state
internally. When an over power condition has occurred, the digital current meter's LCD
display will indicate "OPP".