ABB PDP32.0 - Page 16

Block diagrams PDP32.0/PDR31.0
X3
1
2
3
SHLD
uC +
ASIC
A
B
5 V
0 V
24 V DC
X2
0 V
PDP32
<-> UMC
1
5
2
1
6
5
A
B
8
3
X3
X4
1
2
3
R390
R390
R220
PDR31
SHLD
RS485
Driver
6
5
8
3
X4
X1
5 V
0 V
24 V DC
X2
0 V
2
1
16PDP32.0 MANUAL