Lenze 9400 Manual de usuario descargar pdf (Pagina 216)

5 Motor interface

5.9 Monitoring

216

Lenze · Servo-Inverter 9400 HighLine · Reference manual · DMS 10.0 EN · 11/2013 · TD05/06

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Structure of the I

2

xt monitoring

The introduction of a two-component model with two time constants (one for the winding and the

other for the housing/laminated core) serves to display the thermal behaviour of the motor up to

500% of the rated current:

[5-34] Structure of the motor monitoring

Calculation with only one time constant

With C01195

= "0 %" the time constant for the winding is not considered and the thermal model is

only calculated with the time constant set for the housing/laminated core.

• The setting C01195

= "0 %" is reasonable if for example the two time constants are not known.

• The calculation simplified due to this setting corresponds to the calculation in the previous

Lenze devices (e.g. 9300 servo inverter or ECS).

 Thermal utilisation of the motor in [%]

k

1

1

(1+p )

t

1

k

2

1

(1+p )

t

2



I

act motor

I

perm motor

(n)

2

Parameter Setting

I

act motor

Actual motor current -

I

perm motor

(n) Permissible motor current (speed-dependent) -

τ

1

Therm. time constant coil C00128/1

k

1

Percentage of the winding in the final temperature C01195

τ

2

Therm. time constant plates C00128/2

k

2

Percentage of the steel plates in the final temperature 100 % - C01195

1 2 ... 211 212 213 214 215 216 217 218 219 220 221 ... 953 954

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