Multi-units operation
a. Press the composite keys [Shift]+[V-set](Config) to enter into the config-
uration menu interface.
b. Rotate the knob to select Parallel and press [Enter] key to confirm.
c. Rotate the knob to select Single and press [Enter] key to confirm.
3. Power off the three units and disconnect the power cord.
4. Remove the cables connection of the System Bus and AC output terminals
between three units.
5. Power on the three units separately. After the instrument is restarted, the
VFD shows that the instrument is working in single mode.
In three-phase operation, the output waveform only supports Sine waveform.
5.3 Multi-Channel Function
IT-M7723 power supply support multi-channel function, the operation can be
realized by the PC control software IT9000. By communicating one unit in the
System Bus link with the PC, it is possible to independently control any other
unit in the PC software.
For multi-channel operation controlled by the PC software, the user will need to
install one communication card only into one of the multiples units, and other
instruments are connected with the PC through a multi-channel connection with
system bus. The cost of the communication cards is saved, and the connection
interface on the PC side is also reduced. Up to 126 channels, each instrument
in the control system can be controlled independently in software, and each
channel can be operated completely independently.
When multiple power supplies are connected through the System Bus interface,
each power supply must be set to a separate channel number ranging from 1 to
126. The power supply connected to the same system bus, the channel number
can not be repeated, otherwise it will cause conflicts. All power interfaces will
prompt “Chan Number Conflict”. In this case, rotate the knob to change the
channel number directly, press [Enter] to confirm.
The following three instruments are taken as an example to describe the
connection and operation steps of multiple channels.
Copyright © Itech Electronic Co., Ltd.
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