Basic Operation
a. Connect the AC input terminals of the three units separately, and connect
them to the AC distribution box.
b. Connect the DC input 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.
The wiring rules for the fiber interface are shown in the figure below.
Black indicates the wiring of the inner ring of the fiber, and red indicates
the wiring of the outer ring of the fiber.
3. Turn on the main switch of the AC distribution box and power on each of the
three units.
4. Set three units in parallel mode with one master and two slaves.
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 Item.
5. After the parallel menu of the three units are set, restart the instrument
separately.
After the instrument is restarted, the VFD shows that the instrument is work-
ing in parallel mode.
Revert to Single Mode
1. Set each of the three instruments to single 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 Item.
2. Power off the three instruments and turn off the main switch of the AC distri-
bution box.
3. Remove the cables connection of the System Bus and DC input terminals
between three units.
4. Power on the three instruments separately.
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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