ABB ACS355 series, Руководство пользователя

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Actual signals and parameters 277
4012 SETPOINT
MIN
Defines the minimum value for the selected PID reference
signal source. See parameter
4010 SET POINT SEL .
0.0%
-500.0…500.0% Value as a percentage.
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:
1 = 0.1%
4013 SETPOINT
MAX
Defines the maximum value for the selected PID reference
signal source. See parameters
4010 SET POINT SEL and
4012 SETPOINT MIN .
100.0%
-500.0…500.0% Value as a percentage 1 = 0.1%
4014 FBK SEL Selects the process actual value (feedback signal) for the
process PID controller: The sources for the variables ACT1
and ACT2 are further defined by parameters
4016 ACT1
INPUT and 4017 ACT2 INPUT .
ACT1
ACT1 ACT1 1
ACT1-ACT2 Subtraction of ACT1 and ACT2 2
ACT1+ACT2 Addition of ACT1 and ACT2 3
ACT1*ACT2 Multiplication of ACT1 and ACT2 4
ACT1/ACT2 Division of ACT1 and ACT2 5
MIN(ACT1,2) Selects the smaller of ACT1 and ACT2 6
MAX(ACT1,2) Selects the higher of ACT1 and ACT2 7
sqrt(ACT1-2) Square root of the subtraction of ACT1 and ACT2 8
sqA1+sqA2 Addition of the square root of ACT1 and the square root of
ACT2 9
sqrt(ACT1) Square root of ACT1 10
COMM FBK 1 Signal 0158 PID COMM VALUE 1 value 11
COMM FBK 2 Signal 0159 PID COMM VALUE 2 value 12
All parameters
No.
Name/Value Description Def/FbEq
4013
(MAX)
4012
(MIN)
1301 1302
1301 1302
AI1 (%)
Ref
Ref
AI1 (%)
4012
(MIN)
4013
(MAX)
MAX > MIN MIN > MAX