ABB ACH550-02-645A-4 [296/454] Parameter listing and descriptions

ABB ACH550-02-645A-4 [296/454] Parameter listing and descriptions
292 Parameter listing and descriptions
ACH550-02 User's Manual
4230 TRIM MODE 0…2
Selects the type of trim, if any. With the trim it is possible to combine a
corrective factor to the drive reference.
0 =
NOT SEL – Disables the trim function.
1 =
PROPORTIONAL – Adds a trim factor that is proportional to the rpm/Hz
reference.
2 =
DIRECT – Adds a trim factor based on the control loop’s maximum
limit.
4231 TRIM SCALE -100.0…100.0%
Defines the multiplier (as a percentage, plus or minus) used in the trim
mode.
4232 CORRECTION SRC 1=PID2REF,
2=PID2OUTPUT
Defines the trimming reference for the correction source.
1 =
PID2REF – Uses appropriate REF MAX (Switch A OR B):
• 1105
REF1 MAX when REF1 is active (A).
• 1108
REF2 MAX when REF2 is active (B).
2 =
PID2OUTPUT – Uses the absolute maximum speed or frequency
(Switch C):
•2002
MAXIMUM SPEED if 9904 MOTOR CTRL MODE = 1 (VECTOR:SPEED).
•2008
MAXIMUM FREQ IF 9904 MOTOR CTRL MODE = 3 (SCALAR:FREQ).
Code Description Range
Switch
Mul.
Mul.
+
Select
Add
X
X
(par. 4232)
Trimmed ref
PID2 ref
Select
(par. 4230)
Ext ref 1 max (A)
Ext ref 2 max (B)
Abs max speed
Ramped ref
off
propor.
direct
Trim scale
PID 2
Trimming PID2 out
Trimming PID2 ref
freq (C)

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