ABB ACQ80-04 - Page 131

Parameters 131
40.07 Process PID
operation mode
Activates/deactivates process PID control.
Note: Process PID control is only available in external
control; see section Local control vs. external control (page
29).
Off
Off Process PID control inactive. 0
On Process PID control active. 1
On when drive
running
Process PID control is active when the drive is running. 2
40.08 Set 1 feedback 1
source
Selects the primary source of process feedback. AI2 percent
Not selected None. 0
AI1 scaled 12.12 AI1 scaled value (see page 85). 1
AI2 scaled 12.22 AI2 scaled value (see page 86). 2
Freq in scaled 11.39 Freq in 1 scaled value (see page 83). 3
AI1 percent 12.101 AI1 percent value (see page 88)8
AI2 percent 12.102 AI2 percent value (see page 88)9
Feedback data
storage
40.91 Feedback data storage (see page 139), 10
Actual flow 80.01 Calculated flow (see page 159), 11
Other Source selection (see Terms and abbreviations on page 64). -
40.11 Set 1 feedback filter
time
Defines the filter time constant for process feedback. 0.000 s
0.000…30.000 s Feedback filter time. 1 = 1 s
40.14 Set 1 setpoint
scaling
Defines, together with parameter 40.15 Set 1 output
scaling, a general scaling factor for the external PID
control chain. The scaling can be utilized when, for
example, the process setpoint is input in Hz, and the
output of the PID controller is used as an rpm value in
speed control. In this case, this parameter might be set to
50, and parameter 40.15 to the nominal motor speed at 50
Hz.
In effect, the output of the PID controller [40.15] when
deviation (setpoint - feedback) = [40.14] and [40.32
] = 1.
Note: The scaling is based on the ratio between 40.14
and 40.15. For example, the values 50 and 1500 would
produce the same scaling as 1 and 3.
100.00
-200000.00...
200000.00
Process setpoint base. 1=1
40.15 Set 1 output scaling See parameter 40.14 Set 1 setpoint scaling 100.00
-200000.00...
200000.00
Process PID controller output base. 1=1
40.16 Set 1 setpoint 1
source
Selects the primary source of process PID setpoint. AI1 percent
Not selected None. 0
Internal setpoint Internal setpoint. See parameter 40.24 Set 1 internal setpoint
0.
2
AI1 scaled 12.12 AI1 scaled value (see page 85). 3
AI2 scaled 12.22 AI2 scaled value (see page 86). 4
No. Name/Value Description Def/FbEq16
ACQ80 FW.book Page 131 Thursday, February 14, 2019 11:33 AM