ABB ACS320 series, User Manual

Page: 234 / 442

234 Actual signals and parameters
4012
SETPOINT MIN
-500.0 … 500.0% 0.1% 0.0%
Defines the minimum value for the selected PID reference signal source. See
parameter
4010 SET POINT SEL . Value in percent.
Example: Analog input AI1 is selected as the PID reference source (value of
parameter 4010 is AI1). The reference minimum and maximum correspond to the 1301
MINIMUM AI1 and 1302 MAXIMUM AI1 settings as follows.
4013 SETPOINT MAX -500.0 … 500.0% 0.1% 100.0%
Defines the maximum value for the selected PID reference signal source. See
parameters
4010 SET POINT SEL and 4012 SETPOINT MIN . Value in percent.
4014 FBK SEL 1…13 1 1
Defines the PID controller feedback (actual signal).
• You can define a combination of two actual values (ACT1 and ACT2) as the
feedback signal.
• Use parameter 4016 ACT1 INPUT to define the source for actual value 1 (ACT1).
• Use parameter 4017 ACT2 INPUT to define the source for actual value 2 (ACT2).
1 = ACT1 – Actual value 1 (ACT1) provides the feedback signal.
2 = ACT1-ACT2 – ACT1 minus ACT2 provides the feedback signal.
3 = ACT1+ACT2 – ACT1 plus ACT2 provides the feedback signal.
4 = ACT1*ACT – ACT1 times ACT2 provides the feedback signal.
5 = ACT1/ACT2 – ACT1 divided by ACT2 provides the feedback signal.
6 = MIN (ACT1, 2) – The smaller of ACT1 or ACT2 provides the feedback signal.
7 = MAX (ACT1, 2) – The greater of ACT1 or ACT2 provides the feedback signal.
8 = sqrt(ACT1-2) – Square root of the value for ACT1 minus ACT2 provides the
feedback signal.
9 = sqA1 + sqA2 – Square root of ACT1 plus the square root of ACT2 provides the
feedback signal.
10 = sqrt(ACT1) – Square root of ACT1 provides the feedback signal.
11 = COMM FBK 1 – Signal
0158 PID COMM VALUE 1 provides the feedback signal.
12 = COMM FBK 2 – Signal 0159 PID COMM VALUE 2 provides the feedback signal.
13 = AVE(ACT1,2) – The average of ACT1 and ACT2 provides the feedback signal.
Group 40: Process PID set 1
Code Description Range Resolution Default S
4013
(MAX)
4012
(MIN)
1301 1302
1301 1302 AI1 (%)
Ref
Ref
AI1 (%)
4012
(MIN)
4013
(MAX)
MAX > MIN MIN > MAX