Operation; Requirements For Successful Operation; Device Classification; Enabling Network Control - Danfoss VLT MCD 201 Installation Manual

EtherNet/IP Module
Installation Guide

7 Operation

7.1 Requirements for Successful Operation

The EtherNet/IP module is conformance-tested to ODVA. For successful operation, the scanner must also support all functions and
interfaces described in this manual.

7.2 Device Classification

The EtherNet/IP module is an I/O adapter and must be managed by an I/O scanner over Ethernet.
The EtherNet/IP module supports both implicit (cyclic) and explicit (acyclic) messaging.

7.3 Enabling Network Control

MCD 200
For the soft starter to accept the fieldbus commands, a link must be fitted across terminals A1–N2 on the soft starter.
MCD 500
Input links are required across terminals 17 and 25–18 if the soft starter is being operated in auto-on mode. In hand-on mode, links
are not required.
Control via the fieldbus communication network is always enabled in local control mode and can be enabled or disabled in remote
control mode (parameter 3-2 Comms in Remote). See the VLT® Soft Starter MCD 500 Operating Guide for parameter details.

7.4 Ensuring Safe and Successful Control

Data written to the device remains in its registers until the data is overwritten or the device is reinitialized. The EtherNet/IP module
will not transfer successive duplicate commands to the soft starter.
• If the soft starter is started via fieldbus communications but stopped via the LCP or a remote input, an identical start command
cannot be used to restart the soft starter.
• If the soft starter may also be controlled via the LCP or the remote inputs (as well as via fieldbus communications), a control
command should be immediately followed by a status query to confirm that the command has been actioned.

7.5 Feedback LEDs

Table 3: LED Descriptions
LED name LED state
Power Off
On
Error Off
Flashing
On
Status Off
Flashing
On
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1 2
Description
The device is not powered up.
The device is receiving power.
The device is not powered up or the the device is powered up and has received an IP address.
Connection timeout.
Duplicate IP address.
The device is not powered up or the the device is powered up and has received an IP address.
The device has obtained an IP address but has not established any network connections.
Communication has been established.
Operation
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