Max/Min Setting Function; Calibration Parameters; Oscillate; Osc Detection Disable And Delay Features - Ametek Amrel PLA Series Operation Manual

recommendation for improved performance without changing the turn -on sequence, the V-On threshold can be increased
to a voltage closer to the application's operating voltage and the V-On detection mode changed to "Continuous". By
making the necessary adjustments, both the DUT and eLOAD can operate under stable conditions to avoid irregular
results. To achieve best resu lts, the V-On Voltage should be set to a level higher than the stabilizing voltage of the power
supply or DUT, and higher tha n the eLOAD's minimum operating voltage. Please refer to "Protection Feature" in section
one for a detailed explanation of the different V-On modes.
Fault Signal: Each time a protection fault triggers, the Fault pin becomes active TTL high. When this occurs, the
appropriate bits in the status register are set and the fault signal is latched. The status bits will remain set until the
electronic load is reset via the GPIB or RS232 (*RST command) or at the front panel (CLEAR key). The condition that
caused the protection feature to trip must be corrected or the load will turn off again.
Note: Because the protection is done through software, the response time for the delay trip time must be set to at least
50ms for each protection feature. Otherwise the load may not reset correctly if the trip delay time is too short.

MAX/MIN SETTING FUNCTION

To change the values, press the "Menu/Local" key press Enter, then use the  keys to select the Max/Min Limit
function then the "ENTER" key. Use  keys to select the appropriate Min/Max setting by pressin g the "ENTER key.
The LCD will disp lay the current value, press the "ENTER" key to enter a new value and press the "ENTER" key to
confirm entry. Press "CLEAR" key to escape the Max/Min Setting MODE.
The following are special eLOAD MAX/MIN settin gs that can be programmed to prevent erroneous value entry for
specific applications or special power sources that are sensitive to inappropriate operating values.
MAX VOLTAGE - Max V
MIN VOLTAGE - 0.000V
MAX CURRENT - Max A
MIN CURRENT - 0.0000 A
MAX RESISTANCE - Max OHM
MIN RESISTANCE - 0.00 OHM
MAX POWER - Max W
MIN POWER - 0.00 W

CALIBRATION PARAMETERS

Please refer to "SECTION 5. CALIBRATION".

OSCILLATE

This function selects between DISABLE/ OSC3/OSC2/OSC1/Default System Bandwidth Settings. OSC3 & OSC2 have a
slower transient time range and slower bandwidth and OSC1 & Default have a faster transient time range and wider
bandwidth.

OSC DETECTION DISABLE AND DELAY FEATURES

For applications that utilize non-pure DC output power to the eLoad input, the OSC detection can be disabled by selecting
the "DISABLE" menu choice. The OSC Protection Delay can be increased to 10 seconds for applications that require a
buffer to avoid false protection trigger. Please refer to the menu tree for detailed selection procedures.
CAUTION
Product used with oscillation protection turned off may cause product failure. Failure occurring as a result of
oscillation application or turn-off of this feature will not be covered under warranty.
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