Alarms - CD Automation REVO RT User Manual

REVO RT
from 35A to 90A

10.4 Alarms

P163 - Alarm 1 function (Address ModBus 2163)
P177 - Alarm 2 function (Address ModBus 2177)
P191 - Alarm 3 function (Address ModBus 2191)
P177 - Alarm 4 function (Address ModBus 2177)
NOTE: Alarm 4 is the AND condition of the 3 zones with the alarm configured
Example: If Alarm 4 is configured as "Absolute Low", if all three variables are lower than the Alarm 4 threshold, then the alarm
is activated.
PV = Process variable
SP = Regulation SetPoint
AL = Alarm Threshold
AL_L = Alarm threshold low for asymmetrical alarm
AL_H = Alarm threshold high for asymmetrical alarm
Select Alarm Type 1.
0 Disabled (Default)
1 Absolute of high. Absolute referred to PV, active when PV exceeds threshold
2 Absolute of low. Absolute referred to PV, active when PV below threshold
3 Band alarm (SP ± alarm setpoint)
4 Asymmetrical band Alarm ( SP + AL_H and SP - AL_L)
5 High deviation. Deviation alarm, active when PV exceeds SP + AL
6 Low deviation. Deviation alarm, active when PV goes below SP - AL
7 Absolute on high of SP. Absolute on SP, active when SP higher than threshold
8 Absolute of low SP. Absolute referred to SP, active when SP lower than threshold
Absolut on High
1
In alarm
Asymmetric band
4
In alarm
SP
In alarm
Absolut on high SP
7
In alarm
Absolut on Low
2
AL
In alarm
Time
High deviation
5
In alarm
AL_H
SP
AL_L
Time
Absolut on low SP
8
AL
In alarm
Time
AL
Time
AL
Time
AL
Time
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User's manual
Band
3
In allarme
SP
In alarm
Time
Low deviation
6
SP
In alarm
Time
+AL
-AL
AL