95x Series Operating Manual - May 17, 2022
Page
57
of
155
ACTIONS WHILE RUNNING
•
For the DCez and DCW types, on any failure the step is immediately aborted, and optionally the entire test
sequence may be aborted.
•
For the DCW and DCIR types, the loading current is analyzed during the last ¾ of the ramp phase and
compared to the configured minimum load capacitance for the step (if enabled to do so).
•
If the step is the MANUAL sequence, then the user may manually change the voltage during the dwell
period if the load capacitance is low.
•
For the DCIR type, on any failure other than leakage limit testing the step is immediately aborted. The
oper
ation of the leakage limit test is dependent on the “End On” setting
.
•
For the DCez type, the delay is of zero length, the discharge period is of zero length and arc detection is
not enabled.
•
For the DCW and DCIR types, the discharge period can be programmed to be skipped and the next step
started at this steps’ dwell voltage level if the next step is of the DCez, DCW or DCIR type.
•
During the discharge period the voltage is reduced to zero in the programmed time or at the programmed
rate. If the actual voltage significantly lags the expected voltage during the discharge, then discharge
circuitry is automatically engaged to speed up the discharge. The test step will not fully complete until the
actual voltage is reduced to a safe level. The discharge circuitry is a combination of fixed and controlled
loading. Refer to Discharge
in the Specifications section for details. The controlled loading has energy
limitations which may prevent it engaging until the voltage has been reduced by the fixed loading, and the
user may restrict this further by setting a lower maximum discharge current setting in the CNFG
–
TEST
menu. The
HIGH VOLTAGE OR HIGH CURRENT PRESENT
warning symbol on the front panel of the 95x is
illuminated whenever an unsafe voltage is present on the
HV
terminal. If this is the last step in a
sequence, then the discharge circuitry remains engaged after the test step has fully terminated. It is not
disengaged until the user finishes reviewing the results of this sequence.
V
T
Ramp
(0 to 10000s)
Dwell
(0.02 to 10000s or user terminated)
Discharge
(0 to 10000s)
Breakdown and Arc Detection Active
Min & Max Leakage Limits
Enforced
Delay
(0 to 10000s)
