ABB Symphony Harmony Series - Page 165

4 - 10 WBPEEUI240751C0
Digital Output
Figure 4-7. AIN-300 Block
T03233A
+
REF1
REF1
REF16
REF16
–15 V
–15 V
–15 V
–15 V
1
1
1
1
16
16
16
16
CH 1
CH 1
CH 16
CH 16
•
•
•
•
•
•
•
•
•
•
•
•
REDUNDANT
AIN-300 BASE AIN-300 MODULE (PRIMARY)
AIN-300 MODULE (BACKUP)
REDUNDANCY LINK
REDUNDANCY LINK
–
C
ISO LAT E D
GND
ISO LAT E D
GND
MATCHED
CURRENT
SOURCES
MATCHED
CURRENT
SOURCES
AMP
AMP
AMP
AMP
A/D
A/D
A/D
A/D
OPTO-
COUPLER
OPTO-
COUPLER
OPTO-
COUPLER
OPTO-
COUPLER
OPTO-
COUPLER
OPTO-
COUPLER
OPTO-
COUPLER
OPTO-
COUPLER
A
A
B
B
B
A
HNET
CPU
AND
HNET
IN T E R FACE
CPU
AND
HNET
IN T E R FACE
RTD