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2.3.20 Special MANU Test Mode (000)
Special Test Mode
Overview
When MANU number 000 is selected, the special test
mode is activated. Under the special test mode, the
voltage can be changed during a test, in real time (ACW,
DCW only). The test function can also be changed when
in READY or VIEW status, unlike under normal operation.
Separate settings can be saved under the special test
mode for each of the testing functions: ACW, DCW, IR and
GB. This means a different ACW, DCW, IR and GB test
setup can be saved for MANU number 000.
Sweep Function
Overview
The STW-9900 has access to the sweep mode function.
The sweep function creates a graph of one of the ACW,
DCW, IR or GB tests in the special manual mode. The
graph will plot the output voltage, current or resistance
versus time. After the test has been completed, the test
current, voltage or resistance at any point in time can be
viewed in the graph.
Below is an example of the resultant sweep plot of a DCW
test where a DC voltage is ramped up to a user-defined
level until the HI SET current level has been tripped or the
test time runs out.
Test V
Test I
time
Start time
RAMP TIME
Legend: Voltage:
Current
TEST time
Voltage
Current
The test items that are plotted on the sweep graph depend
on the type of test that is performed.
TEST
Graph Test Items
ACW
Test voltage, test current (V, I)
DCW
Test voltage, test current (V, I)
IR
Test current, test resistance (I, R)
GB
Test voltage, test resistance (V, R)