Digital I/O Function (Digital Port) - ITech IT-M3900D Series User Manual

3. Turn on the main switch of the AC distribution box and power on each of the
4. Set three units in parallel mode with one master and two slaves.
5. After the parallel menu of the three units are set, restart the instrument
Revert to Single Mode
1. Set each of the three instruments to single mode.
2. Power off the three instruments and turn off the main switch of the AC distri-
3. Remove the cables connection of the System Bus and DC output terminals
4. Power on the three instruments separately.

5.11 Digital I/O Function (Digital Port)

This series power supply supports digital I/O function. The user can realize logic
control over signal input or output by related configurations in the system menu.
Pins Introduction
Different I/O implements different functions. The detailed functions description
are shown in the figure below:
b. Connect the DC output terminals of the three units in parallel and connect
them to the DUT.
c. Refer to the blue wiring legend in the figure, connect the System Bus (i.
e., the fiber outer ring interfaces TX and RX) for fiber-optic communica-
tion between the master and slaves.
three units.
a. Press the composite keys [Shift]+[P-set] (System) on the front panel to
enter the system menu.
b. Set Parallel to Master or Slave and press [Enter].
c. After setting the Master, you need to set Total to 3.
For details, see Configure the Menu
separately.
After the instrument is restarted, the VFD shows that the instrument is work-
ing in parallel mode.
a. Press the composite keys [Shift]+[P-set] (System) on the front panel to
enter the system menu.
b. Set the Parallel to Single.
For details, see Configure the Menu
bution box.
between three units.
After the instrument is restarted, the VFD shows that the instrument is work-
ing in single mode.
Copyright © Itech Electronic Co., Ltd.
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