Alarms Configuration - ABB C1300 User Manual

C1300
Advanced circular chart recorder

3.6 Alarms Configuration

Overview.

Four alarms per channel – identified A1 to D1 (for channel 1) up to A4 to D4 (for channel 4).

High/Low process alarms.

Fast/Slow rate alarms.

Adjustable hysteresis value – prevents oscillation of alarm state.

Time hysteresis – enables delayed triggering of alarms.
Process
Variable
High Process
Low Process
Fig. 3.1 High and Low Process Alarm with Hysteresis
Output
0
Time in seconds
Counter
Started
Example shows time hysteresis set to 70 seconds used with a high process alarm
Fig. 3.2 Time Hysteresis Alarm
IM/C1300 Rev. J
40 0
Counter Counter
Reset Started
Time Hysteresis Status
70 130
Hysteresis Time Counter
Elapsed Reset
3 Configuration
Hysteresis
Trip Point
Hysteresis
Alarm On
Alarm Off
Alarm On
Alarm Off
Alarm Trip Point
Alarm On
Alarm Off
31