FTP3000 Series Programmable DC Power Supply Operation Manual
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3.9 Protection
FTP3000 series power supply provides comprehensive protection functions, some of them are user adjustable
protection functions and it is possible to set an protection threshold, while others are not. The adjustable
protection functions includes protections against overvoltage (OVP), overcurrent (OCP), overpower (OPP),
foldback, reverse voltage (RVP), low voltage (LVP), communication time out (Over time). Non-adjustable
protections are triggered by hardware protection circuit, including overtemperature protection (OTP), over
compensate voltage protection (OCVP), module fault protection (FAULT), etc..
When a protection occurs, the power supply will turn off output, sounds an alarm, and prompt corresponding
protection information on display.
1. Press
to enter into the main menu;
2. Select “Protection” sub menu under “Set”, press
, you will see following page for protection set:
Figure 3-9 Protection Set
3. Rotate the rotary knob to select the protection to be adjusted, press “Enter” to enter into edit status;
4. Use the numeric keys and decimal point key to input data, also you can rotate the rotary knob to increase /
decrease the value, or use the rotary knob to choose from different selections;
5. Press “Enter” to validate the input parameters;
6. When protection occurred, to clear the protection state, please press
key.
Overvoltage protection (OV/OVP)
It has two kinds of overvoltage protection: hardware overvoltage (OV) and software overvoltage (OVP).
Hardware overvoltage protection (OV): It is triggered once the output voltage exceeds 105% rated output
voltage, and “OV” is prompted on display.
Software overvoltage protection (OVP): It is programmable as shown in “Figure 3-9 Protection Set”. Users are
able to set the OVP threshold, set to 0 means to turn off OVP. OVP is triggered once the output voltage exceeds
OVP set, and “OVP” is prompted on display.
Over Compensate Voltage Protection (OCVP)
When using remote V-Sense, the power supply automatically compensate the voltage drop resulted from line loss,
OCVP is triggered if the compensate voltage is too high and OCVP is prompted on screen.
Summary of Contents for FTP3000 Series
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