Emerson Rosemount 3490 Series Reference Manual page 117

Reference Manual
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Related information
Auxiliary functions for relay modes
Monitoring the control unit readings
Set-up alarms
Alarm indication selection
No activity alarm
Menu
Table 4-25: No Activity Alarm Parameters
Parameter
P497
P498
Related information
Auxiliary functions for relay modes
Emerson.com/Rosemount
SETUP → [CONTROLLER] → APPLICATION → ALARM
Description
No Activity Del It is an alarm condition if there is no relay activity for
the period (hours and minutes) defined by
parameter P497. Relays are selected for monitoring
using parameter P498. The alarm condition is
cleared when any of the monitored relays are
energized.
For alarm indication options, see
No Activity RL Select relays for the relay inactivity monitoring
operation.
Each digit represents a relay. Relay RL1 is selected for
monitoring by editing the first digit to be a "1".
Similarly, relay RL5 is selected with the fifth digit. To
de-select a relay, change the appropriate digit back
to a "0".
Getting started
January 2021
Factory default
0:00 h:m
Set-up alarms.
00000
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