ABB ACH550-01 User Manual page 293

ACH550 User's Manual
Code Description
4230 TRIM MODE
Selects the type of trim, if any. With the trim it is possible to combine a
corrective factor to the drive reference.
0 = – Disables the trim function.
NOT SEL
1 =
PROPORTIONAL
reference.
2 = – Adds a trim factor based on the control loop's maximum
DIRECT
limit.
4231 TRIM SCALE
Defines the multiplier (as a percentage, plus or minus) used in the trim
mode.
4232 CORRECTION SRC
Defines the trimming reference for the correction source.
1 = 2
PID REF
• 1105
REF
• 1108
REF
2 = 2
PID OUTPUT
(Switch C):
• 2002
MAXIMUM SPEED
1 (
VECTOR
• 2008
MAXIMUM FREQUENCY IF
3 (
SCALAR
Ramped ref
Switch
Ext ref 1 max (A)
Ext ref 2 max (B)
Abs Max Speed
Freq (C)
PID2 ref
Parameter listing and descriptions
– Adds a trim factor that is proportional to the rpm/Hz
– Uses appropriate
REF MAX
1 when 1 is active (A).
MAX REF
2 when 2 is active (B).
MAX REF
– Uses the absolute maximum speed or frequency
if 9904
MOTOR CTRL MODE
: ).
SPEED
9904
: ).
FREQ
Select
(par. 4230)
trim scale
off
propor.
Select
direct
(par. 4232)
Trimming PID2 ref
PID 2
Trimming PID2 out
Range
0...2
-100.0...100.0%
1...2
(Switch A B):
OR
=
=
MOTOR CTRL MODE
Add
+
Mul. Mul.
X
X
Trimmed ref
281