ABB ACS350 User Manual page 217

Parameters – complete descriptions
Index Name/Selection
SEQ PROG OUT
4011 INTERNAL SETPNT
x...x
4012 SETPOINT MIN
-500.0...500.0%
4013 SETPOINT MAX
-500.0...500.0%
4014 FBK SEL
ACT1
ACT1-ACT2
ACT1+ACT2
ACT1*ACT2
ACT1/ACT2
MIN(ACT1,2)
MAX(ACT1,2)
sqrt(ACT1-2)
sqA1+sqA2
sqrt(ACT1)
COMM FBK 1
COMM FBK 2
4015 FBK MULTIPLIER
-32.768...32.767
4016 ACT1 INPUT
AI1
Description
Sequence programming output. See parameter group
PROG.
Selects a constant value as process PID controller reference, when
parameter 4010 SET POINT SEL value is set to INTERNAL.
Unit and range depend on the unit and scale defined by parameters
UNITS and 4007 UNIT SCALE.
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
the 1301 MINIMUM AI1 and
Ref
MAX > MIN
4013
(MAX)
4012
(MIN)
1302
1301
Defines the maximum value for the selected PID reference signal source.
See parameters 4010 SET POINT SEL and
Value in percent
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
ACT1
Subtraction of ACT1 and ACT 2
Addition of ACT1 and ACT2
Multiplication of ACT1 and ACT2
Division of ACT1 and ACT2
Selects the smaller of ACT1 and ACT2
Selects the higher of ACT1 and ACT2
Square root of the subtraction of ACT1 and ACT2
Addition of the square root of ACT1 and the square root of ACT2
Square root of ACT1
Signal 0158 PID COMM VALUE 1 value
Signal 0159 PID COMM VALUE 2 value
Defines an extra multiplier for the value defined by parameter
Parameter is used mainly in applications where feedback value is calculated
from a other variable (e.g. flow from pressure difference).
Multiplier. If parameter value is set to zero, no multiplier is used.
Defines the source for actual value 1 (ACT1). See also parameter
ACT1 MINIMUM.
Uses analog input 1 for ACT1
1302 MAXIMUM AI1 settings as follows:
Ref
4012
(MIN)
4013
(MAX)
AI1 (%)
1301
4012 SETPOINT MIN.
4017 ACT2 INPUT.
Def, FbEq
84 SEQUENCE 33
40
4006
0
1 = 0.1%
MIN > MAX
AI1 (%)
1302
100
1 = 0.1%
ACT1
1
2
3
4
5
6
7
8
9
10
11
12
4014 FBK SEL. 0
1 = 0.001
4018 AI2
1
Actual signals and parameters
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