Issue 01/06

 

 

 

Parameter Description

 

 

 

 

 

P1253[3] Vdc-controller output limitation

 

Min:

0.00

Level

 

CStat:

CUT

Datatype: Float

Unit: Hz

Def:

10.00

3

 

 

 

P-Group:

FUNC

Active: Immediately

QuickComm.: No

Max:

600.00

 

Limits maximum effect of Vdc max controller.

Index:

P1253[0] : 1st. Drive data set (DDS)

P1253[1] : 2nd. Drive data set (DDS)

P1253[2] : 3rd. Drive data set (DDS)

P1254

Auto detect Vdc switch-on levels

 

Min:

0

Level

 

CStat:

CT

Datatype: U16

Unit: -

Def:

1

3

 

 

 

P-Group:

FUNC

Active: Immediately

QuickComm.: No

Max:

1

 

Enables/disables auto-detection of switch-on levels for Vdc control functionalities.

Following switch-on levels are calculated

-Switch-on level chopper

-Switch-on level compound brake

-Switch-on level Vdc_max controller r1242

P1254 does not have any effect on the

- Switch-on level kin. buffering r1246

Possible Settings:

0Disabled

1Enabled

Note:

The switch-on thresholds are only calculated during the start-up of the inverter after connection to the mains. An online-adaption is not performed during operation. This means that modification of P1254 does not immediately take effect and variations in the mains are also not initially taken into account.

P1254 = 0 (Automatic Detection disabled):

The above thresholds are calculated via P0210, if automatic detection is disabled.

P1256[3] Reaction of kinetic buffering

 

Min:

0

CStat:

CT

Datatype: U16

Unit: -

Def:

0

P-Group:

FUNC

Active: Immediately

QuickComm.: No

Max:

2

Enters reaction for kinetic buffering controller (Vdc-min controller).

Level

3

Depending on the setting selected, the frequency limit defined in P1257 is used to either hold the speed or disable pulses. If not enough regeneration is produced, drive may trip undervoltage.

Possible Settings:

0Maintain DC-link until trip

1Maintain DC-link until trip / stop

2Control stop

Index:

P1256[0] : 1st. Drive data set (DDS)

P1256[1] : 2nd. Drive data set (DDS)

P1256[2] : 3rd. Drive data set (DDS)

Note:

P1256 = 0:

Maintain dclink voltage until mains is returned or drive is tripped undervoltage. The frequency is kept above the frequency limit provided in P1257.

VDC

P1245

VDC_min

t

f

 

P1257

t

Pulse

 

enabled1

t

0

MICROMASTER 440

Parameter List

6SE6400-5BB00-0BP0

151

Page 151
Image 151
Siemens 440 manual P12533 Vdc-controller output limitation, P1254 Auto detect Vdc switch-on levels, 151