Block Diagram - Siemens MICROMASTER 420 Operating Manual

Issue 04/04
2.4

Block diagram

≥ 4.7 kΩ
External 24 V
DIN1
5
DIN2
6
DIN3
7
+
24 V
_
PNP
or
NPN
9
30 V DC / 5 A (resistive)
Relay
250 V AC / 2 A (inductive)
0 - 20 mA
max. 500 Ω
The analog input circuit can be
alternatively configured to
provide an additional digital
input (DIN4):
2
DIN4
3
4
9
+ -
24 V
Fig. 2-3 Inverter block diagram
MICROMASTER 420
Compact Operating Manual
+10 V
1
0 V
2
ADC+
3
A/D
ADC-
4
DIN1
5
DIN2
6
DIN3
7
Output +24 V
max. 100 mA
8
(isolated)
Output 0 V
max. 100 mA
9
(isolated)
RL1-B
10
RL1-C
11
DAC+
12
D/A
DAC-
13
P+
14
COM link
RS485
N-
15
CB
automatic
Option
2 Electrical Installation
PE
1/3 AC 200 - 240 V
3 AC 380 - 480 V
BOP link
RS232
150.00
Hz
I Fn
0 P
Jog
BOP/AOP
CPU
60 Hz
Not
used
50 Hz
1 2
DIP switch
SI
L/L1, N/L2
PE
or
L/L1, N/L2, L3
or
L1, L2, L3
~
=
DC+
DC−
=
3 ~
PE U,V,W
M
7