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4 factory setting – Siemens MICROMASTER 420 User Manual

Page 57

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Issue 07/04

3 Functions

MICROMASTER 420 Operating Instructions

6SE6400-5AA00-0BP0

57

3.4 Factory

setting

The MICROMASTER drive unit is shipped from the
plant with a Status Display Panel (SDP, refer to Fig.
3-12). The SDP has two LEDs on the front panel
which display the operating state of the drive inverter
(refer to Section 4.1).
When MICROMASTER is shipped from the plant with
the SDP functioning, it can be operated without any
additional parameterization. In this case, the drive
inverter default settings (which depend on the drive
inverter type / size) match the following data of a 4-
pole motor:

Rated motor power

P0307

Rated motor voltage

P0304

Rated motor current

P0305

Rated motor frequency

P0310

(We recommend a Siemens standard motor.)

Further, the following conditions must be fulfilled:

Control (ON/OFF command) via digital inputs

(refer to Table 3-7)

Setpoint input via analog input 1

P1000 = 2

Induction motor

P0300 = 1

Self-cooled motor

P0335 = 0

Motor overload factor

P0640 = 150 %

Min. frequency

P1080 = 0 Hz

Max. frequency

P1082 = 50 Hz

Ramp-up time

P1120 = 10 s

Ramp-down time

P1121 = 10 s

Linear V/f characteristic

P1300 = 0

Table 3-7

Pre-assignment of the digital inputs

Digital inputs

Terminals

Parameter

Function

Active

Command source

-

P0700 = 2

Terminal strip

Yes

Digital input 1

5

P0701 = 1

ON / OFF1

Yes

Digital input 2

6

P0702 = 12

Reversing

Yes

Digital input 3

7

P0703 = 9

Fault acknowledge

Yes

Digital input 4

Via ADC

P0704 = 0

Digital input disabled

No

Fig. 3-12

Status Display
Panel (SDP)