Functions and Features
• Status register, the OP status bit is set to 1.
Enable OPP
1. Press [Shift]+[Recall] (Protect) to enter Protect menu interface.
2. Use left and right keys or rotate the knob to select OPP and press [Enter]
key to confirm.
3. Use left and right keys or rotate the knob to select On and press [Enter] key
to confirm.
4. Rotate the knob to adjust the over-power limit Level and press [Enter] key
to confirm.
5. Rotate the knob to adjust the delay time Delay and press [Enter] key to
confirm.
6. Press [Esc] to exit the protection menu setting.
Clear Over-Power Protection
To clear the over-power and return to normal operation, firstly remove the condi-
tions that caused the protection fault. Press [Esc] key (or send the command
PROTection:CLEar) to clear the protection status. The “Over Power Protect”
displayed in front panel is cleared and the instrument exits OPP status.
4.3.5 Set Under-Voltage Protection
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:
• Enable UVP;
• The output time exceeds the warm-up time;
Warm-up time Warm Up — You can specify the warm-up time for UVP pro-
tection to make the instrument not judge the under-voltage protection fault
within the specified warm-up time.
• The output voltage value is less than the set voltage protection point Level
and the period is greater than the set protection delay time Delay.
Delay time Delay — You can specify an UVP delay to prevent momentary
output settings, DUT and status changes from tripping the under-voltage
protection. In most cases these momentary conditions would not be consid-
ered an under-voltage protection fault, and having an UVP condition disable
the output when they occur would be a nuisance. Specifying an UVP delay
lets the UVP circuit ignore these momentary changes during the specified
Copyright © Itech Electronic Co., Ltd.
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