ABB ACS355 - Page 266

266 Actual signals and parameters
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
4015 FBK
MULTIPLIER
Defines an extra multiplier for the value defined by
parameter 4014 FBK SEL. Parameter is used mainly in
applications where feedback value is calculated from
another variable (eg flow from pressure difference).
0.000
-32.768…
32.767
Multiplier. If parameter value is set to zero, no multiplier is
used.
1 = 0.001
4016 ACT1 INPUT Defines the source for actual value 1 (ACT1). See also
parameter 4018 ACT1 MINIMUM.
AI2
AI1 Uses analog input 1 for ACT1 1
AI2 Uses analog input 2 for ACT1 2
CURRENT Uses current for ACT1 3
TORQUE Uses torque for ACT1 4
POWER Uses power for ACT1 5
COMM ACT 1 Uses value of signal 0158 PID COMM VALUE 1 for ACT1 6
COMM ACT 2 Uses value of signal 0159 PID COMM VALUE 2 for ACT1 7
FREQ INPUT Frequency input 8
4017 ACT2 INPUT Defines the source for actual value ACT2. See also
parameter 4020 ACT2 MINIMUM.
AI2
See parameter 4016 ACT1 INPUT.
All parameters
No. Name/Value Description Def/FbEq