Ametek Amrel PLA 2U, Operation Manual

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M470039-01 REV-F Page 125
FF: fill factor in %
Pm: max. power value
Voc: measured voltage of open-circuit test
Isc: measured current of short-circuit test
Vmp: measured voltage at max. power step.
Imp: measured current at max. power step.
3. Front panel operation for PLA/PLW new front panel
a. Sweep disabled mode - eLoad operate in normal mode when "SWEEP:ENABLE OFF".
b. Sweep enabled mode - eLoad operate in sweep mode when "SWEEP:ENABLE ON".
LCD display format - second line of LCD display sweep state like example message below.
"L SWP OFF" - sweep idle state in low range.
"M SWP WAITING" - sweep start waiting in middle range.
"H SWP STEP 5" - sweep operating at 5th step in high range.
"L SWP STEP VOC" - sweep operating at open-circuit in low range.
"L SWP STEP ISC" - sweep operating at short-circuit in low range.
"M SWP STEP ERR 3" - sweep operation halted with error code 3.
hot key with led definition - only STEP is valid which will launch or stop sweep operation.
utility key definition - only CLEAR, ENTER, and UTILITY keys are valid.
UTILITY - press this key to access menu tree.
CLEAR - press this key to show OEM message, clear protection, or
clear sweep error.
ENTER - press this key to show FF, Pm, Voc, Isc, Vmp, Imp value.
Definition of values:
FF: fill factor in %
Pm: max. power value
Voc: measured voltage of open-circuit test
Isc: measured current of short-circuit test
Vmp: measured voltage at max. power step.
Imp: measured current at max. power step.
4. Sweep control menu tree
UTILITY --> SWEEP CONTROL --> ENABLE --> OFF/ON
--> MODE
--> PV/CV/CC/CR/CP
--> START VALUE --> start value of sweep step
--> STOP VALUE
--> stop value of sweep step
--> STEP VALUE --> step value +- of sweep step
--> STEP TIME --> dwelling time of sweep step