232 Actual signals and parameters
4010
SET POINT SEL
0...32 1 0
Defines the reference signal source for the PID controller.
• Parameter has no significance when the PID regulator is by-passed (see parameter
8121 REG BYPASS CTRL).
0 = KEYPAD – Control panel provides reference.
1 = AI1 – Analog input 1 provides reference.
2 = AI2 – Analog input 2 provides reference.
8 = COMM – Fieldbus provides reference.
9 = COMM+AI1 – Defines a fieldbus and analog input 1 (AI1) combination as the
reference source. See Analog Input Reference Correction below.
10 = COMM*AI1 – Defines a fieldbus and analog input 1 (AI1) combination as the
reference source. See Analog Input Reference Correction below.
11 = DI3U, 4D(RNC) – Digital inputs, acting as a motor potentiometer control, provide
reference.
• DI3 increases the speed (the U stands for “up”)
• DI4 decreases the reference (the D stands for “down”).
• Parameter 2205 ACCELER TIME 2 controls the reference signal’s rate of change.
• R = Stop command resets the reference to zero.
• NC = Reference value is not copied.
12 = DI3U, 4D(NC) – Same as DI3U, 4D(RNC) above, except:
• Stop command does not reset reference to zero. At restart the motor ramps up, at
the selected acceleration rate, to the stored reference.
14 = AI1+AI2 – Defines an analog input 1 (AI1) and analog input 2 (AI2) combination
as the reference source. See Analog Input Reference Correction below.
15 = AI1*AI2 – Defines an analog input 1 (AI1) and analog input 2 (AI2) combination as
the reference source. See Analog Input Reference Correction below.
16 = AI1-AI2 – Defines an analog input 1 (AI1) and analog input 2 (AI2) combination as
the reference source. See Analog Input Reference Correction below.
17 = AI1/AI2 – Defines an analog input 1 (AI1) and analog input 2 (AI2) combination as
the reference source. See Analog Input Reference Correction below.
19 = INTERNAL – A constant value set using parameter 4011 provides reference.
Group 40: Process PID set 1
Code Description Range Resolution Default S
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