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GETTING STARTED
3.
GETTING STARTED
3.1.
Baud Rate
The baud rate of the FR-EPN is set by the Baud Rate attribute of the
DeviceNet class, instance 1 (see section 6.2.3 Class 0x03 Instance
Attributes - Instance 1). This setting is also available in Pr.118 (see section
5.1 Pr.118). However, the best way to set it is using a configuration
program such as DeviceNetManager software.
To do this, the drive being configured should be set up as the only node on
the network aside from the master computer running DeviceNetManager.
Performing a parameter all-clear on the drive and cycling power will reset
the baud rate to 125 kbps. At this point, DeviceNetManager can be used to
configure the baud rate to any of the three possible speeds.
To change the speed manually via the parameter unit, refer to the
description of Pr.118.
3.2.
Net Mode and Parameter Setup
(1) The inverter must be in Net Mode for motor control operations through
the network. Drive mode is controlled automatically by the FR-EPN
option card.
The FR-EPN will attempt to set the drive to Net Mode whenever a
DeviceNet connection is made. It will set the drive back to external
mode whenever all connections are released. If the drive is running at
these times, then the drive will not be set to Net mode, and control
cannot be performed via DeviceNet. Monitoring and reading, however,
can be performed regardless of the drive mode.
(2) Parameter 81, Motor Pole Count, defaults to four internally even though
9999 is displayed in the parameter unit. This parameter can be
modified via the network to control motors other than four pole motors.
An incorrect value for parameter 81 results in an incorrect motor speed.
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