Contact Operations Monitor Function; Conduction Time Monitor Function; Baud Rate Auto-Detection; Network Power Supply Voltage Monitor Function - Omron 3G3MV-PDRT2 User Manual

Functions and System Configuration
Note The input from the Inverter's control terminal block is ORed with the input from DeviceNet com-
munications, so the input is considered ON when either input source is ON. For example, when
either the RUN/STOP signal is input from the control terminal block or the input is being
received from DeviceNet communications, the corresponding multi-function input terminal is
considered as ON and the ON time is added.

Contact Operations Monitor Function

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This function counts the number of times that one of the Inverter's control I/O terminals goes ON/
OFF. The number of ON/OFF operations can be useful in maintenance, e.g., it can indicate when a
connected device needs to be replaced.
Note The input from the Inverter's control terminal block is ORed with the input from DeviceNet com-
munications, just as it is in the Cumulative ON Time Monitor Function.

Conduction Time Monitor Function

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Totals and records the time that power is supplied to the Slave's internal circuit power supply. The
Slave can report (through the Unit status flags) when the cumulative ON time reaches the SV set in
the Slave. The DeviceNet Communications Unit/Card has three set values that can be set indepen-
dently for the following three time monitoring functions.
• Main Unit operating time
• Fan operating time
• Electrolytic capacitor operating time
Since the fan operating time and electrolytic capacitor operating time are used to indicate when
those parts need to be replaced, these monitoring times can be reset to zero (with an operation in
the Configurator's Device Monitor Window).

Baud Rate Auto-detection

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In earlier Slaves it was necessary to set the baud rate with a DIP switch on the Slave, but it isn't nec-
essary to set the baud rate for Smart Slaves. The baud rate is automatically set to match the Mas-
ter's baud rate.
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Network Power Supply Voltage Monitor Function

The network power supply values (present value, maximum value, and minimum value) can be
recorded in the Slave. In addition, the Slave can report (through the Unit status flags) when the volt-
age drops below the SV (monitor voltage) set in the Slave.
Unit Comment Function
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An user-defined name can be set for each Unit and the names can be stored in the Slaves.
Connected Device Comment Function
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User-defined names can be set for the motor connected to the Inverter and devices connected to
control I/O terminals, and those names can be stored in the Inverter.
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Chapter 1