How To Scale The Pid Actual (Feedback) Signal 0...10 Bar / 4...20 Ma - ABB ACS150 series User Manual

0.37...4kw; 0.5...5 hp
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How to scale the PID actual (feedback) signal 0...10 bar / 4...20 mA

PID feedback is connected to AI1 and
1. Set
9902
APPLICATION MACRO to 6 (PID CONTROL). Check scaling: 1301
MINIMUM AI1 as default 20% and 1302 MAXIMUM AI1 as default 100%. Check
that
1106
REF2 SELECT is set to 19 (PID1OUT).
2. Set
3408
SIGNAL2 PARAM to 130 (PID1 FBK).
3. Set
3409
SIGNAL2 MIN to 0.
4. Set
3410
SIGNAL2 MAX to 10.
5. Set
3411
OUTPUT2 DSP FORM to 9 (DIRECT).
6. Set
3412
OUTPUT2 UNIT to 0 (NO UNIT).
7. Set
4006
UNITS to 0 (NO UNIT).
8. Set
4007
UNIT SCALE to 1.
9. Set
4008
0% VALUE to 0.
10. Set
4009
100% VALUE to 10.
How to scale the PID setpoint signal
1. Set
4010
SET POINT SEL to 19 (INTERNAL).
2. Set
4011
INTERNAL SETPNT to 5.0 ("bar" is not displayed on the drive control
panel) as an example.
4016
ACT1 INPUT is set to AI1.
Appendix: Process PID control
163

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