External Pid1 - ABB ACQ580 Firmware Manual

254 Parameters
No. Name/Value
58.107 Data I/O 7
... ...
58.114 Data I/O 14
71

71 External PID1

71.01 External PID act
value
71.02 Feedback act value
71.03 Setpoint act value
71.04 Deviation act value
71.06 PID status word
Bit Name
0 PID active
1 Reserved
2 Output frozen
3...6 Reserved
7 Output limit high
8 Output limit low
9 Deadband active
10...11 Reserved
12 Internal setpoint
active
13...15 Reserved
0000h...FFFFh
71.07 PID operation mode
71.08 Feedback 1 source
71.11 Feedback filter time
71.14 Setpoint scaling
-200000.00...
200000.0
71.15 Output scaling
Description
Parameter selector for Modbus register address 400007.
For the selections, see parameter
...
Parameter selector for Modbus register address 400014.
For the selections, see parameter
Configuration of external PID.
See the control chain diagrams on pages
See parameter 40.01 Process PID output
See parameter 40.02 Process PID feedback
See parameter 40.03 Process PID setpoint
See parameter 40.04 Process PID deviation
Displays status information on process external PID control.
This parameter is read-only.
Value
1 = Process PID control active.
1 = Process PID controller output frozen. Bit is set if parameter
71.38 Output freeze enable
active (bit 9 is set).
1 = PID output is being limited by par.
1 = PID output is being limited by par. 71.36.
1 = Deadband is active.
1 = Internal setpoint active (see par. 71.16...71.23)
Process PID control status word.
See parameter 40.07 Process PID operation
See parameter 40.08 Set 1 feedback 1
See parameter 40.11 Set 1 feedback filter
Defines, together with parameter
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
nominal motor speed at 50 Hz.
In effect, the output of the PID controller [71.15] when
deviation (setpoint - feedback) = [71.14] and [71.32] = 1.
Note: The scaling is based on the ratio between
71.15. For example, the values 50 and 1500 would produce
the same scaling as 1 and 3.
Process setpoint base.
See parameter 71.14 Setpoint
58.101 Data I/O 1.
58.101 Data I/O 1.
415 and 416.
actual.
actual.
actual.
actual.
is TRUE, or the deadband function is
.
71.37
mode.
source.
time.
71.15 Output scaling, a
71.15 to the
71.14
scaling.
Def/FbEq16
None
...
None
-
-
-
-
-
1 = 1
Off
AI2 percent
0.000 s
100.00
and
1 = 1
100.00