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Functions and Features

The procedures to set the menu item are as follows.

1. Press [Shift]+[Save] (System) to enter into the system menu interface.

2. Use left and right keys or rotate the knob to select Bleeder and press

[Enter] key to make the parameter in modification.

3. Rotate the knob to select Off or On and press [Enter] key to confirm.

4.2.8 Output Inhibit Control

The IT-M3140 series power supply rear panel provides an output Inhibit inter-

face Inhibit±, which can disable the power output to prevent the power supply

from being operated incorrectly during the test and causing damage to the DUT.

• Off: Disables the Inhibit Port function.

• Living mode. When the external Inhibit± control terminals input is in the

False state, the output is controlled by the [On/Off] key on the front panel;

when the external Inhibit± control terminals input is in the True state, the out-

put is turned off, and the output [On/Off] key is invalid at this time .

– Nomal: When Inhibit+ and Inhibit– are short-circuited, the Inhibit± control

port input is in the True state, and if it is not short-circuited, it is in the

False state.

– Inverted: When Inhibit+ and Inhibit– are short-circuited, the Inhibit± con-

trol port input is in the False state, and if it is not short-circuited, it is in the

True state.

• Latch mode. When the external Inhibit± control terminals detects the level

change from False to True, the power output will be turned off. To release

the latched state, you must first set the external Inhibit± control port to the

False state, and send a command (OUTPut:PROTection:CLEar) to clear the

corresponding INH status bit.

– Nomal: When Inhibit+ and Inhibit– are short-circuited, the Inhibit± control

port input is in the True state, and if it is not short-circuited, it is in the

False state.

– Inverted: When Inhibit+ and Inhibit– are short-circuited, the Inhibit± con-

trol port input is in the False state, and if it is not short-circuited, it is in the

True state.

The figure below shows the short connection between the Inhibit± interfaces.

ITech IT-M3140 Series User Manual

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