Program features
101
Reference trimming
In reference trimming, the external reference is corrected depending on the
measured value of a secondary application variable. The block diagram below
illustrates the function.
Settings
Parameter
Additional information
REF1/2 selection
…
Trimming function settings
…
PID control settings
Group
Drive operation limits
REF’
0
REF1 (Hz/rpm) / REF2 (%) = The drive reference before trimming
REF’ = The drive reference after trimming
max. speed= par.
if the absolute value is greater)
max. freq = par.
(or
if the absolute value is greater)
max. torq = par.
(or
if the absolute value is greater)
PID2 act = par.
...
1)
Note:
Torque reference trimming is only for external reference REF2 (%).
2)
REF1 or REF2 depending on which is active. See parameter
3)
When par.
= PID2REF, the maximum trimming reference is defined by parameter
REF1 is active and by parameter
when REF2 is active.
When par.
= PID2 OUTPUT, the maximum trimming reference is defined by parameter
if
parameter
value is VECTOR:SPEED or VECTOR:TORQ and by parameter
value if
parameter
value is SCALAR:FREQ.
max.speed
max.freq
max.torque
PID2 ref
4232 CORRECTION SRC
4231 TRIM SCALE
9904
1105 REF1 MAX / 1108 REF 2 MAX
2)
Switch
Mul.
Add
PID2
4230
Select
DIRECT (2)
PROPOR. (1)
NOT SEL (0)
REF1 (Hz/rpm) /
REF2 (%)
2)
REF1 (Hz/rpm) /
REF2 (%)
2)
Mul.
4233
1)
Switch
Switch
3)
Switch
PID2 act
PID2 output
Содержание ACS350 Series
Страница 1: ...ACS350 User s Manual ACS350 Drives 0 37 22 kW 0 5 30 HP ...
Страница 4: ......
Страница 8: ...Safety 8 ...
Страница 18: ...Table of contents 18 ...
Страница 24: ...Hardware description 24 ...
Страница 44: ...Installation checklist 44 ...
Страница 56: ...Start up control with I O and ID Run 56 ...
Страница 140: ...Program features 140 ...
Страница 242: ...Actual signals and parameters 242 ...
Страница 266: ...Fieldbus control with embedded fieldbus 266 ...
Страница 284: ...Fault tracing 284 ...
Страница 288: ...Maintenance and hardware diagnostics 288 ...
Страница 309: ...Dimensions 309 Frame size R2 IP20 NEMA 1 3AFE68586658 A Frame size R2 IP20 NEMA 1 VAR EMC ...
Страница 311: ...Dimensions 311 Frame size R3 IP20 NEMA 1 3AFE68579872 B Frame size R3 IP20 NEMA 1 VAR EMC ...
Страница 312: ...Dimensions 312 Frame size R4 IP20 cabinet installation UL open Frame size R4 cabinet installation UL open 3AFE68935644 ...
Страница 313: ......