ABB ECA06 - Page 231

Appendix A: Application Examples A.3 Furnace Pressure Control with 3-State Pulse Output
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4 Inputs → Analog Inputs → AI2 → Identity = Pressure.
Filtering
Set the time constant for AI2 to 2seconds:
1 Inputs → Analog Inputs → AI2 → FilterTime = 2 seconds.
Process Value
The pressure signal is to be used as the Process Value and is in the range –1.0 to
+1.0kPa:
1 Operator → (PID1 – ECA600 only →) Process Value →
NumberOfDecimals = 1.
2 Operator → (PID1 – ECA600 only →) Process Value →
PVMinValue = –1.
AI2: Ana In 2
Mode
4–20mA
Cancel
OK
AI2: Ana In 2
Identity
Pressure
Cancel
OK
AI2: Pressure
FilterTime
2
Cancel
OK
Process Value
NumberOfDecimals
1
Cancel
OK