95x Series Operating Manual - May 17, 2022
Page 38 of 155
01.01d 1500V 60.0Hz
1.5s BRKDN >50mApk
The peak voltage source current limit was exceeded which caused the step to
fail. This is typically caused by a fast and severe DUT breakdown (e.g., a
flashover).
01.01d 1500V 60.0Hz
1.5s BRKDN 11.3mApk
The user set breakdown current limit was exceeded which caused the step to fail.
01.01d 1500V 60.0Hz
1.5s OVER 11.3mA
The DUT current exceeded the 95x maximum ability for >10ms, this is typically a
DUT breakdown whose peak was limited to below the configured breakdown
limit but may also indicate that the configured ramp rate for a DC type step was
too fast for the load capacitance (so the charging current was beyond the unit’s
ability).
01.01d 0.000A 60Hz
WIRING FAULT
A wiring fault was detected during a GB, GBez or LowΩ type step which caused
the step to fail.
01.01d 1500V 60.0Hz
1.5s ABORTED
The user aborted the test sequence.
01.01d 1500V 60.0Hz
1.5s CONTINUITY
The Continuity Sense safety feature was tripped which caused the step to fail.
01.01d 1500V 60.0Hz
INTERLOCK OPENED
The INTERLOCK DIO interface signal became unasserted which caused the step to
fail.
01.01r 1500V 60.0Hz
UNSTABLE LOAD
The DUT load was too unstable preventing the 95x from providing a stable test
voltage or current, or the line voltage was too low to achieve the programmed
test voltage and load current.
Minimum load detection is enabled and the configured minimum load for this
test step was not achieved during ramp in a DCW or DCIR type step which caused
the step to fail.
01.01d SWITCH
SWITCH FAILED
The 95x could not communicate with an external switch matrix unit during
execution of a SWITCH type step.
The user failed to continue the sequence within the programmed timeout period
while executing a HOLD type step.
01.01d 1500V 60.0Hz
INT FAULT
An internal fault was detected which caused the step to fail.
The 95x may need to be power cycled to recover from this. This is often caused
by extreme interference but may be caused by an unrecoverable failure in an
internal circuit of the 95x.
01.01d 1500V 60.0Hz
OVERHEATED
The 95x overheated which caused the step to fail.
This can occur because the load current was too high for too long, or the airflow
around the 95x was restricted, or the ambient temperature is too high around
the 95x.
The user should wait at least 15 seconds to allow it to cool down properly before
either re-attempting the test or removing power from the 95x.
• The test sequence # and presently shown step # are shown in the upper left corner of the display.
Following the step #, for test step types which have a ramp and a dwell period, a single character is shown
which is either r indicating that the failure occurred during the ramp period of the step, or d indicating
that either the failure occurred in the dwell period, or the test completed normally. The user can change
the step number being reviewed by selecting the step # in the display using the Left Arrow or Right Arrow
keys as needed, then using the Up Arrow or Down Arrow keys to step forwards or backwards through the
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