Siemens MICROMASTER 420 Operating Manual

Issue 04/04 2 Electrical Installation
MICROMASTER 420
Compact Operating Manual
7
2.4 Block diagram
PE
1/3 AC 200 - 240 V
3 AC 380 - 480 V
SI
PE
L/L1, N/L2
L/L1, N/L2, L3
L1, L2, L3
=
3 ~
PE
U,V,W
M
A/D
+10 V
0 V
0 - 20 mA
max. 500 Ω
CPU
RS485
D/A
~
=
ADC+
ADC-
DIN1
DIN2
DIN3
DAC+
DAC-
P+
N-
RL1-B
RL1-C
1
2
3
4
5
6
7
8
9
12
13
14
15
10
11
≥ 4.7 kΩ
Output 0 V
max. 100 mA
(isolated)
30 V DC / 5 A (resistive)
250 V AC / 2 A (inductive)
Relay
Output +24 V
max. 100 mA
(isolated)
DC-link connection
or
or
CB
Option
automatic
DC+
DC−
DIN4
2
3
4
9
24 V
-+
The analog input circuit can be
alternatively configured to
provide an additional digital
input (DIN4):
12
60 Hz
50 Hz
DIP switch
Not
used
BOP link
COM link
Jog
0
I
P
Fn
Hz
150.00
BOP/AOP
RS232
DIN1
DIN2
DIN3
5
6
7
9
External 24 V
NPN
PNP
or
24 V
+
_
Fig. 2-3 Inverter block diagram

Siemens MICROMASTER 420 Specifications

General

Power Range	0.12 kW to 11 kW
Output Voltage	0 to input voltage
Input Frequency	47 Hz to 63 Hz
Output Frequency	0 Hz to 650 Hz
Overload Capacity	150% for 60 seconds
Enclosure Rating	IP20
Input Voltage	200 V to 240 V (±10%), 380 V to 480 V (±10%)
Control Type	V/f control
Braking	Optional braking module
Protection Features	Overcurrent, overvoltage, undervoltage, overload, short circuit, ground fault
Cooling	Air-cooled
Ambient Temperature	-10 °C to +50 °C
Communication Interfaces	USS protocol