ABB ACS550-02 User Manual page 128

126
Code Description
4012 SETPOINT MIN
Sets the minimum value for the reference signal source. See parameter 4010.
4013 SETPOINT MAX
Sets the maximum value for the reference signal source. See parameter 4010.
4014 FBK SEL
Defines the PID controller feedback (actual signal).
• You can define a combination of two actual values (
• Use parameter 4016 to define the source for actual value 1 (
• Use parameter 4017 to define the source for actual value 2 (
1 = 1 – Actual value 1 (
ACT
2 = 1- 2 – 1 minus
ACT ACT ACT
3 = 1+ 2 –
ACT ACT ACT
4 = 1* 2 – 1 times
ACT ACT ACT
5 = 1/ 2 – 1 divided by
ACT ACT ACT
6 = ( 1, 2) – The smaller of
MIN A A
7 = ( 1, 2) – The greater of
MAX A A
8 = ( 1- 2) – Square root of the value for
SQRT A A
9 = 1 + 2 – Square root of
SQA SQA
4015 FBK MULTIPLIER
Defines an extra multiplier for the PID FBK value defined by parameter 4014.
• Used mainly in applications where the flow is calculated from the pressure difference.
0 = .
NOT USED
-32.768...32.767 = Multiplier applied to the signal defined by parameter 4014
=
Example: FBK Multiplier
4016 ACT1 INPUT
Defines the source for actual value 1 (
0 = 1 – Uses analog input 1 for
AI
1 = 2 – Uses analog input 2 for
AI
2 = Current – Uses current for
• Min 1 = 0 current
ACT
• Max 1 = 2 x nominal current
ACT
3 = Torque – Uses torque for
• Min 1 = -2 x nominal torque
ACT
• Max 1 = 2 x nominal torque
ACT
4 = Power – Uses power for
• Min 1 = -2 x nominal power
ACT
• Max 1 = 2 x nominal power
ACT
4017 ACT2 INPUT
Defines the source for actual value 2 (
0 = 1 – Uses analog input 1 for
AI
1 = 2 – Uses analog input 2 for
AI
2 = Current – Uses current for
• Min 2 = 0 current
ACT
• Max 2 = 2 x nominal current
ACT
3 = Torque – Uses torque for
• Min 2 = -2 x nominal torque
ACT
• Max 2 = 2 x nominal torque
ACT
4 = Power – Uses power for
• Min 2 = -2 x nominal power
ACT
• Max 2 = 2 x nominal power
ACT
Start-Up
1) provides the feedback signal.
ACT
2 provides the feedback signal.
ACT
1 plus 2 provides the feedback signal.
ACT
2 provides the feedback signal.
ACT
2 provides the feedback signal.
ACT
1 or 2 provides the feedback signal.
ACT ACT
1 or 2 provides the feedback signal.
ACT ACT
ACT
1 plus the square root of
ACT
× ∠
A1 A2
1).
ACT
1.
ACT
1.
ACT
1, scaled so:
ACT
1, scaled so:
ACT
1, scaled so:
ACT
2).
ACT
2.
ACT
2.
ACT
2, scaled so:
ACT
2, scaled so:
ACT
2, scaled so:
ACT
1 and 2) as the feedback signal.
ACT ACT
1).
ACT
2).
ACT
1 minus 2 provides the feedback signal.
ACT
2 provides the feedback signal.
ACT
FBK SEL
.