Set Over-Current Protection (Ocp); Set Over-Power Protection (Opp) - ITech IT-M3900D Series User Manual

4.5.2 Set Over-Current Protection (OCP)

Users can enable the OCP function and set the protection limit Level and pro-
tection delay time Delay. When the current (i.e., the Meter value) is greater than
this protection limit and the delay time is exceeded, the power supply will enter
the OCP state.
Possible Cause
Many reasons can cause OCP, the details are as follows:
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•
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How to Set
The operation steps to set OCP are as follows.
1. Press the composite keys [Protect] on the front panel to enter the protection
2. Press the composite keys [Shift]+[Recall] (Protect) on the front panel to en-
3. Rotate the knob to select 2. OCP (Off) and press [Enter].
4. Press the left/right key or rotate the knob to select On and press [Enter] to
5. Set the protection limit Level and the delay time Delay in sequence, and

4.5.3 Set Over-Power Protection (OPP)

Users can enable the OPP function and set the protection limit Level and pro-
tection delay time Delay. When the power (i.e., the Meter value) is greater than
this protection limit and the delay time is exceeded, the power supply will enter
the OPP state.
The set protection limit Level is lower than the current Meter value.
The external (AC input) inputs a higher current.
The power supply outputs a high current due to a fault.
menu. (1U Model)
ter the protection menu. (2U Model)
enter the setting interface.
press [Enter] to confirm.
The VFD screen returns to the Protect menu and the OCP setting (take 10A,
1S as an example) is displayed as follows:
PROTECT
2.OCP 10A, 1.000S
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Power Supply Function
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