Issue 01/06

Parameter Description

P1755[3] Start-freq. motor model (SLVC)

 

Min:

0.1

CStat:

CUT

Datatype: Float

Unit: Hz

Def:

5.0

P-Group:

CONTROL

Active: Immediately

QuickComm.: No

Max:

250.0

Level

3

Enter the start frequency of sensorless vector control (SLVC), thereby SLVC switches over from open-loop to closed-loop at that frequency.

The default setting depends on the motor power:

-0 kW to 0.749 kW: 5.0 Hz

-0.75 kW to 75 kW: 1.5 Hz

-75.1 kW to 200 kW: 1.0 Hz

f_act

P1755

P1756 [Hz]

t

SLVC open loop

SLVC closed loop

P1758

P1756[Hz]= P1755[Hz]P1756[%]

100[%]

t

Index:

 

P1755[0]

: 1st. Drive data set (DDS)

P1755[1]

: 2nd. Drive data set (DDS)

P1755[2]

: 3rd. Drive data set (DDS)

P1756[3] Hyst.-freq. motor model (SLVC)

 

Min:

10.0

Level

 

CStat:

CUT

Datatype: Float

Unit: %

Def:

50.0

3

 

 

 

P-Group:

CONTROL

Active: Immediately

QuickComm.: No

Max:

100.0

 

Enters hysteresis frequency (in percent of start-frequency) to switch back from sensorless-vector-control (SLVC) to current model.

Value is entered in the range 0 % to 50 % relative to P1755 (SLVC stop frequency).

Index:

 

P1756[0]

: 1st. Drive data set (DDS)

P1756[1]

: 2nd. Drive data set (DDS)

P1756[2]

: 3rd. Drive data set (DDS)

P1758[3] Chng-ov. del. t SLVC op.-lp ctrl

 

Min:

100

Level

 

CStat:

CUT

Datatype: U16

Unit: ms

Def:

1500

3

 

 

 

P-Group:

CONTROL

Active: Immediately

QuickComm.: No

Max:

2000

 

Sets the minimum time when the changeover frequency is fallen below when changing from the closed-loop into the open-loop controlled mode.

Index:

P1758[0] : 1st. Drive data set (DDS)

P1758[1] : 2nd. Drive data set (DDS)

P1758[2] : 3rd. Drive data set (DDS)

Dependency:

Refer to P1750, P1755, P1756

P1759[3] Chng-ov. del. t SLVC cl.-lp ctrl

 

Min:

50

Level

 

CStat:

CUT

Datatype: U16

Unit: ms

Def:

100

3

 

P-Group:

CONTROL

Active: Immediately

QuickComm.: No

Max:

2000

 

Sets the minimum time when the changeover frequency is exceeded when changing from the open-loop controlled into the closed-loop controlled mode.

Index:

P1759[0] : 1st. Drive data set (DDS)

P1759[1] : 2nd. Drive data set (DDS)

P1759[2] : 3rd. Drive data set (DDS)

Dependency:

Refer to P1750, P1755, P1756

MICROMASTER 440

Parameter List

6SE6400-5BB00-0BP0

185

Page 185
Image 185
Siemens 440 manual P17553 Start-freq. motor model Slvc, P17563 Hyst.-freq. motor model Slvc, 185