ABB ACS580 - Page 283

Parameters 279
40.04 Process PID
deviation actual
Displays the process PID deviation. By default, this value
equals setpoint - feedback, but deviation can be inverted by
parameter 40.31 Set 1 deviation inversion. See the control
chain diagram on page 453.
This parameter is read-only.
-
-32768.00…
32767.00 PID
customer units
PID deviation. 1 = 1 PID
customer unit
40.06 Process PID status
word
Displays status information on process PID control.
This parameter is read-only.
-
0000h…FFFFh Process PID control status word. 1 = 1
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
85).
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. See the
control chain diagram on page 452.
AI2 percent
Not selected None. 0
AI1 scaled 12.12 AI1 scaled value (see page 167). 1
AI2 scaled 12.22 AI2 scaled value (see page 168). 2
Freq in scaled 11.39 Freq in 1 scaled value (see page 165). 3
Reserved 4…7
AI1 percent 12.101 AI1 percent value (see page 170)8
AI2 percent 12.102 AI2 percent value (see page 170)9
Feedback data
storage
40.91 Feedback data storage (see page 288), 10
No. Name/Value Description Def/FbEq16
Bit Name Value
0 PID active 1 = Process PID control active.
1 Setpoint frozen 1 = Process PID setpoint frozen.
2 Output frozen 1 = Process PID controller output frozen.
3 PID sleep mode 1 = Sleep mode active.
4 Sleep boost 1 = Sleep boost active.
5 Reserved
6 Tracking mode 1 = Tracking function active.
7 Output limit high 1 = PID output is being limited by par. 40.37.
8 Output limit low 1 = PID output is being limited by par. 40.36.
9 Reserved
10 PID set 0 = Parameter set 1 in use. 1 = Parameter set 2 in use.
11 Reserved
12 Internal setpoint
active
1 = Internal setpoint active (see par. 40.16…40.16)
13…15 Reserved
ACS580 FW.book Page 279 Wednesday, September 21, 2016 9:48 PM