ABB ACQ550-x1-06A6-2 - Page 148

148 ACQ550-U1 User’s Manual
Parameters
4008 0% VALUE
Defines (together with the next parameter) the scaling applied to
the PID controller’s actual values (PID1 parameters 0128, 0130
and 0132).
• Units and scale are defined by parameters 4006 and 4007.
4009 100% VALUE
Defines (together with the previous parameter) the scaling applied
to the PID controller’s actual values.
• Units and scale are defined by parameters 4006 and 4007.
4010 SET POINT SEL
Defines the reference signal source for the PID controller.
• Parameter has no significance when the PID regulator is by-passed (see 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.
13 =
DI5U,6D(NC) – Same as DI3U,4D(NC) above, except:
• Uses digital inputs
DI5 and DI6.
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.
20 =
PID2OUT – Defines PID controller 2 output (parameter 0127 PID 2 OUTPUT) as the reference source.
Code Description
Internal scale (%)
P 4009
P 4008
100%
0%
Units (P4006)
Scale (P4007)
-1000.0%
+1000.0%