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ABB AW400 Series - Controller Parameters: Feed Forward; Controller Parameters: Sampling;Flow Pacing; Controller Parameters: pH;ORP Control

ABB AW400 Series
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37
Default: 0 min/rep. – Range 0–30 min
Manual Reset
(Active when TR=0)
MR Numeric entry in %
Default: 0 - Range 0–100%
Derivative TD Numeric Entry in minutes
Default: 0 min – Range 0–10 min
Process Variable (display only) PV Engineering units
Set Point SP Engineering units
Default: 0
Control zone CZ Numeric entry in Engineering units
Default: 0
Direct/Reverse Action RSW D = Direct; R = Reverse
Span SPAN Value configured in output setting
(Feed Forward parameters appear here if this option has been selected. - See Section 2 below)
High limit on controller’s output OH Numeric entry in %
Default: 100 - Range 0–100%
Low limit on controller’s output OL Numeric entry in %
Default: 0 - Range 0–100%
2 - Feed Forward action (this menu available only when option is activated – See Par. 5.2.2.2)
Limit output as function of flowrate? OHLP Enter No/Yes
Default: No
Factor to compute Max output based on
Flowrate value
FFH Numeric entry in %/100
Default: 1 (=100%)
Factor to compute Min output based on
Flowrate value
FFL Numeric entry in %/100
Default: 0 (=0%)
Absolute High limit on output when limits
based on flowrate are active
MAX ABS. Numeric entry in %
Default: 100 - Range 0–100%
Gain factor applied on flowrate signal
GAIN Numeric entry in %
Default: 100 - Range 0–100%
3 - Sampling and/or Flow Pacing Controller (Process with dead time - this menu available only when
Chlorine input Channel is selected – See Par. 5.2.2.3)
Sampling based on flow? TATP Enter No/Yes
Default: No
Scaling factor for flow K Numeric entry in Engineering units
Default: 0
Active time Att Numeric Entry in minutes
Default: 0 min – Range 0–10 min
Total Cycle time (or volume) Cycle Numeric Entry in minutes (or units sample)
Default: 0
4 - pH/ORP control (this parameter compares when pH/ORP is selected – See Par. 5.2.2.4)
Squared error control band BAND Numeric entry in %
Default: 0 - Range 0–100%

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