TOS93 Series User’s Manual 309
Specifications | Other functions
Protection functions If a protection function is activated during a test, the output is shut off and the test
is stopped immediately.
In an LC test, the power supply to the EUT is stopped, and the A and B terminals
are opened.
Conditions that cause a protection function to be activated are as follows.
Interlock Interlock is activated.
Power Supply There is an error in the power supply section.
Output Error An output voltage outside of the following range is detected.
ACW, DCW, IR test, PD test: ±(10 % of setting + 50 V)
EC test: ±(10 % of setting + 2 A)
Over Load An output power or output current outside of the following range is detected.
ACW: 550 VA, DCW: 110 W or 50 mA,
IR (7200 V test): 110 W or 25 mA, IR (-1000 V test): 2 mA,
EC: 240 VA, LC: AC LINE OUT current at approx. 15.7 A or power at 1 600 VA.
Over Heat The internal temperature of the product is abnormally high.
Over Rating During a withstanding voltage test, an output current is generated for a length of
time that exceeds the output time limit (p.82).
Cal The preset calibration period is exceeded.
Remote The REMOTE connector is connected or disconnected.
Signal I/O There is a change in the SIGNAL I/O connector’s ENABLE signal.
Communication An internal communication error is occurring.
Over Range A value exceeding the maximum value of the measurement range is detected.
Measure An error is detected in the LC test measurement check.
Short A relay operation error is detected in an LC test.
Earth Fault When the grounding mode (GND) is set to Guard, abnormal current flows from the
high voltage output of this product to ground.
Scan I/F While scanning, the interface cable is disconnected. Or, the channel-assigned
scanner is not detected.
Item Specifications
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