Functions and Features
When you return power to the instrument, verify that the cooling
fan is running. If not, please contact ITECH. Leaving the instru-
ment turned on with the failure message displayed or with an in-
operative cooling fan may result in damage to the instrument.
4.6.6 Set foldback protection
This series of instruments has a Foldback protection function, which is used to
turn off the output when the power supply CV / CC is switched, so as to protect
certain DUTs that are sensitive to voltage overshoot and current overshoot.
Foldback protection allows the user to specify a working mode and set the
protection delay time. If the current working mode is switched, the protection will
be triggered from the working loop switch. When the delay time is exhausted,
the protection will be triggered and the output will be turned off.
• Enable FOLDBACK function;
• The loop is switched to the set working mode and the duration is greater
than the set protection delay time;
Enable FOLDBACK function
1. Press [Shift]+[Esc] (Protect) to enter Protect menu interface.
2. Use left and right keys or rotate the knob to select FOLDBACK and press
[Enter] key to confirm.
3. Select CC or CV and press [Enter] key to confirm.
• Selecting CC means that the instrument triggers protection when the
operating mode of the instrument switches to CC mode.
• Selecting CV means that the instrument triggers protection when the
operating mode of the instrument is switched to CV mode.
• Select OFF to turn off the foldback function.
4. Rotate the knob to adjust the Delay and press [Enter] key to confirm.
5. Press [Esc] to exit the protection menu setting.
Delay FOLDBACK
You can specify a time for the FOLDBACK delay, which can make the
instrument ignore the instantaneous change of the operating mode in the
specified delay interval. In most cases, this instantaneous situation is not
considered as a switching state, and there is no need to trigger the foldback
function and disable Output. Once the FOLDBACK delay time is exceeded, the
output is turned off.
Copyright © Itech Electronic Co., Ltd.
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