Set Under-Voltage Protection - Cal Power IT-M3400 Series User Manual

4. Rotate the knob to adjust the warm-up time Warm Up and press [Enter] key
5. Rotate the knob to adjust the under-current limit Level and press [Enter] key
6. Rotate the knob to adjust the delay time Delay and press [Enter] key to
7. Press [Esc] to exit.
Warm Up time
You can specify the warm-up time for UCP protection to make the instrument
not judge the under-current protection fault within the specified warm-up time.
Delay time
You can specify an UCP delay to prevent momentary output settings, DUT and
status changes from tripping the under-current protection. In most cases these
momentary conditions would not be considered an under-current protection
fault, and having an UCP condition disable the output when they occur would be
a nuisance. Specifying an UCP delay lets the UCP circuit ignore these
momentary changes during the specified delay period. Once the UCP delay
time has expired and the under-current condition persists, the output will shut
down.
Clear Under-Current Protection
When under-current protection occurs, the instrument responds as follows:
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•
•
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To clear the under-current and return to normal operation, firstly remove the
conditions that caused the protection fault. Press [Esc] key (or send the
command PROTection:CLEar) to clear the protection status. The "Under
Current Protect" displayed in front panel is cleared and the instrument exits
UCP status.

6.5 Set Under-Voltage Protection

Output under-voltage protection is for the DUT sensitive to the voltage under
CV mode, under-voltage protection function allows the user to enable the
protection and set a under-voltage limit (Level), delay time (Delay) and warm-up
time ( Warm Up). An under-voltage protection will occur if:
to confirm.
to confirm.
confirm.
Instrument output is off;
The buzzer sounds;
The interface displays "Under Current Protect" and flashes;
Status register, the UC status bit is set to 1;
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Protect Function
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