Load Function
• Input a pulse signal to pin 1 of the rear panel P-IO to clear the protection
information.
For details, see 6.11.1 IO–1. Ps-Clear, Not-Invert.
• Press the [Esc] or [Enter] key on the front panel to manually clear the pro-
tection information.
• Connected to the host computer, the PC sends a PROTection:CLEar com-
mand to the instrument to clear the protection information.
After the protection state is cleared, you need to press the [On/Off] key on the
front panel or send the OUTPut ON command to the instrument to reopen
[On/Off].
5.3.1 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 instrument will enter the
OCP state.
Possible Cause
Many reasons can cause OCP, the details are as follows:
• The set protection limit Level is lower than the current Meter value.
• Input too high external current.
How to Set
The operation steps to set OCP are as follows.
1. Press the composite keys [Shift]+[R-set] (Protect) on the front panel to en-
ter the protection menu.
2. Press the up/down key or rotate the knob to select OCP and press [Enter].
3. Press the left/right key or rotate the knob to select On and press [Enter] to
enter the setting interface.
4. Set the protection limit Level and the delay time Delay in sequence, and
press [Enter] to confirm.
For bi-directional power supplies, Level can be set to a positive or nega-
tive value, i.e. the same protection limit is set for the output or input
current.
Copyright © Itech Electronic Co., Ltd.
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