Relay parameters – Rockwell Automation 1440-SPD02-01RB XM-220 Dual Speed Module User Manual

Page 61

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Publication GMSI10-UM004B-EN-P - May 2010

Configuration Parameters 53

Relay Parameters

The Relay parameters control the operation of the on-board relay, as well as
the relays on the Expansion Relay (XM-441) module. Use these parameters to
configure which alarm(s) the relay is associated with, as well as the behavior of
the relay.

Startup Period

The length of time that the tachometer fault is
inhibited after the startup period. The startup period
begins when the startup switch is reopened (push
button disengaged or toggle switch flipped to off).

Enter a value from 0 to 1092 minutes,
adjustable in increments of 0.1
minutes.

Note: This parameter is not applicable
for Locked Rotor alarms.

Inhibit Tachometer Fault

Controls whether to inhibit the tachometer fault
during the startup period.

During startup, the machine may be turning very
slowly and cause the XM module to detect a
tachometer fault. The Alarm status will state that a
tachometer fault condition exists unless the
tachometer fault is inhibited.

Note: This parameter is not applicable
for Locked Rotor alarms.

Alarm Parameters

Parameter Name

Description

Values/Comments

XM Configuration
Utility

EDS File

Check means inhibit
tachometer fault

Inhibit Tach
Fault

Clear means do not
inhibit tachometer
fault

Do not inhibit

IMPORTANT

A relay can be defined, regardless of whether or not it is
physically present. A non-physical relay is a virtual relay.
When a relay (physical or virtual) activates, the module
sends a Change of State (COS) message to its master,
which acts on the condition as necessary. An XM-440
Master Relay Module can activate its own relays in response
to a relay (physical or virtual) activation at any of its slaves.

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