
General Information
3500/42 Operation and Maintenance
6
Bypass
This indicates that the channel has bypassed alarming for one or more of its
proportional values. A channel bypass status may result from the following
conditions:
- A transducer is not OK, and the channel is configured for Timed OK
Channel Defeat.
- The Keyphasor associated with the channel has gone invalid causing all
proportional values related to the Keyphasor signal (for example 1X
Amplitude, 1X Phase, Not 1X, ...) to be defeated and their associated
alarms bypassed.
- The monitor has detected a serious internal fault.
- A software switch is bypassing any channel alarming function.
- The Special Alarm Inhibit is active and causing enabled alarms not to be
processed.
Special Alarm Inhibit
This indicates whether all the nonprimary Alert/Alarm 1 alarms in the
associated monitor channel are inhibited.
The Channel Special Alarm Inhibit function is active when:
- The Alarm Inhibit contact (INHB/RET) on the I/O Module is closed
(active).
- A Channel Special Alarm Inhibit software switch is enabled.
Off
This indicates whether the channel has been turned off. The monitor
channels may be turned off (inactivated) using the Rack Configuration
Software.
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