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Setting a communication fault action, Changing the fault action, Setting a communication fault action -4 – Rockwell Automation 20-COMM-L LonWorks Adapter User Manual

Page 28

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3-4

Configuring the Adapter

20-COMM-L LonWorks Adapter User Manual

Publication 20COMM-UM008B-EN-P

Setting a Communication

Fault Action

By default, when I/O communication is disrupted (for example, a cable is
disconnected), the drive responds by faulting if it is using I/O from the
network. You can configure a different response to the disrupted I/O
communication by using Parameter 6 - [Comm Flt Action]. The drive will
remain in its present state (for example, a running drive will continue to run)
until the value in Parameter 7 - [RcvHrtBeat Time] has elapsed.

Changing the Fault Action

1. Set the value of Parameter 6 - [Comm Flt Action] to an action that

meets your application requirements.

2. Set the value of Parameter 7 - [RcvHrtBeat Time] to the desired

value.

A setting of ‘0’ disables the fault action and a value greater than ‘0’
enables the fault action. If nviDrvSpeedStpt is not received by the
adapter within the value of Parameter 7 - [RcvHrtBeat Time], the
fault action in Parameter 6 - [Comm Flt Action] will be taken.

!

ATTENTION: Risk of injury or equipment damage exists.
Parameter 6 - [Comm Flt Action] and Parameter 7 -
[RcvHrtBeat Time]
let you determine the action of the adapter
and connected drive if I/O communication is disrupted. By
default, Parameter 6 - [Comm Flt Action] faults the drive. You
can set this parameter so that the drive continues to run, however,
take precautions to verify that the setting of this parameter does
not create a risk of injury or equipment damage. When
commissioning the drive, verify that your system responds
correctly to various situations (for example, a disconnected
cable).

Port 5 Device
20-COMM-L
Parameter #: 06

Comm Flt Action

0

Fault

Value Action

(1)

(1)

An actual action taken requires

Parameter 7 - [RcvHrtBeat Time] to

have a value greater than ‘0’.

Description

0

Fault

The drive is faulted and stopped.

(Default)

1

Stop

The drive is stopped, but not faulted.

2

Zero Data

The drive is sent ‘0’ values for data.

This does not command a stop.

3

Hold Last

The drive continues in its present state.

4

Send Flt Cfg The drive is sent the data that you set in

the fault configuration parameters

(

Parameters 11 - [Flt Cfg Logic]

through

20 - [Flt Cfg D2 In]).