Operating instructions

3. COMMISSIONING International English

MICROMASTER 420 Operating Instructions 33

6SE6400-5AA00-0BP0

Motor data for parameterization

Figure 3-5 Typical Motor Rating Plate Example

Note

♦ Changing motor parameters is not possible unless P0010=3.

♦ Ensure that the inverter is configured correctly to the motor, i.e. in the above example

delta terminal connection is for 230 V.

External motor thermal overload protection

When operated below rated speed, the

cooling effect of fans fitted to the motor

shaft is reduced. Consequentially, most

motors require de-rating for continuous

operation at low frequencies. To ensure

that the motors are protected against

overheating under these conditions, a

PTC temperature sensor must be fitted to

the motor and connected to the inverter

control terminals as shown in Figure 3-6.

Figure 3-6 Motor Overload PTC Connection

Note:

To enable the trip function, set parameter P0701, P0702 or P0703 = 29.

Inverter Control

Terminals

5, 6

or 7

1 k

Ω

Motor

PTC