Fieldbus Control Of The Line-Side Converter; Control Block Diagram - ABB ACS800-31 Hardware Manual

Fieldbus control of the line-side converter

Optional fieldbus modules cannot be inserted in the optional module slots of the
RMIO board of the line-side converter. Fieldbus control of the line-side converter is
done via the motor-side converter RMIO board as shown in the block diagram below.

Control block diagram

The figure below shows the parameters for DC and reactive power reference
selection of the line-side converter control program. The AMC table contains actual
values and parameters of the line-side converter.
Motor-side
converter RMIO
112.04 SUPPLY CTRL
MODE = LINE CONV
Dataset 121 (CH1)
MCW
95.06 LCU Q POW REF
95.07 LCU DC REF (V)
Dataset 122 (CH1)
MSW
9.12 LCU ACT SIGNAL 1
9.13 LCU ACT SIGNAL 2
Dataset 123 (CH1)
95.08 LCU PAR1 SEL
95.09 LCU PAR2 SEL
Line-side
converter RMIO
98.02 COMM. MODULE
= INVERTER
Dataset 121 (CH0)
MCW (fixed)
24.02
Q-REF(fixed)
DC REF(fixed)
Dataset 122 (CH0)
MSW (fixed)
106 (value)
110 (value)
Dataset 123 (CH0)
106
110
MCW = Main Control Word
MSW = Main Status Word
Operation principle and hardware description 31
24.03 Q POWER REF2 SEL
PERCENT
+
kVAr
PHI
COSPHI
24.04
AMC
table
11.02 Q REF SELECT
PARAM 24.01
AI1
AI2
AI3
Q POWER
REF
PARAM 24.02
+
11.01 DC REF SELECT
PARAM 23.01
AI1
AI2
AI3
FIELD BUS
24.01
DC VOLT
REF
23.01