Factory Setting; 50/60 Hz Dip Switch - Siemens MICROMASTER 420 Operating Manual

3 Factory setting

3 Factory setting
The MICROMASTER 420 frequency inverter is set in the factory so that it can be
operated without any additional parameterization. To do this, the motor parameters
set in the factory (P0304, P0305, P0307, P0310), that correspond to a 4-pole 1LA7
Siemens motor, must match the rated data of the connected motor (refer to the
rating plate).
Further factory setting:
Command sources P0700 = 2 (Digital input, see Fig. 3-1)
Setpoint source
Motor cooling
P0335 = 0
Motor current limit
P0640 = 150 %
Min. frequency
P1080 = 0 Hz
Max. frequency
P1082 = 50 Hz
Ramp-up time
P1120 = 10 s
Ramp-down time
P1121 = 10 s
Control mode
P1300 = 0
Input/Output
Digital input 1
Digital input 2
Digital input 3
Digital input
Analog input
Output relay
Analog output
3.1

50/60 Hz DIP switch

The default motor base frequency
of the MICROMASTER inverter is
50 Hz. For motors, which are
designed for a base frequency of
60 Hz, the inverters can be set to
this frequency via a DIP switch.
Off position:
European defaults
(50 Hz, kW etc.)
On position:
North American defaults
(60 Hz, hp etc.)
8
P1000 = 2 (Analog input, see Fig. 3-1)
I/O
Ack
Digital Inputs
Fig. 3-1
Terminals Parameter
5 P0701 = 1
6 P0702 = 12
7 P0703 = 9
8 -
3/4 P1000 = 2
1/2 -
10/11 P0731 = 52.3
12/13 P0771 = 21
Analog input
< 4.7 k Ω
Analog and Digital Inputs
Function
ON / OFF1 (I/O)
Reverse (
Fault reset (Ack)
Power supply Digital input
Frequency setpoint
Power supply Analog input
Default identification
Output frequency
60 Hz
50 Hz
50/60 Hz DIP switch
for frequency setting
MICROMASTER 420
Compact Operating Manual
Issue 04/04
)