Siemens 440 manual P12453 Switch on level kin. buffering, R12463 COSwitch-on level kin buffering

Parameter Description Issue 01/06

P1245[3] Switch on level kin. buffering				Min:	65
CStat:	CUT	Datatype: U16	Unit: %	Def:	76
P-Group:	FUNC	Active: Immediately	QuickComm.: No	Max:	115

Level

3

Enter switch-on level for kinetic buffering (KIB) in [%] relative to supply voltage (P0210).

P1245[V] = P1245[%] ⋅ 2 ⋅ P0210

100

Index:

P1245[0] : 1st. Drive data set (DDS)

P1245[1] : 2nd. Drive data set (DDS)

P1245[2] : 3rd. Drive data set (DDS)

Warning:

Increasing the value too much, may interfere with the drive normal operation.

Note:

Changing P1254 does not affect the switch-on-level for KIB.

r1246[3]	CO:Switch-on level kin buffering		Min:	-
	Datatype: Float	Unit: V	Def:	-
	P-Group: FUNC		Max:	-

Displays switch-on level of kinetic buffering (KIB, Vdc min controller).

Level

3

Depending on the setting selected, the frequency limit defined in P1245 is used to either hold the speed or disable pulses. If not enough regeneration is produced, drive may trip undervoltage.

P1247[3] Dyn. factor of kinetic buffering				Min:	10
CStat:	CUT	Datatype: U16	Unit: %	Def:	100
P-Group:	FUNC	Active: Immediately	QuickComm.: No	Max:	200

Enters dynamic factor for kinetic buffering (KIB, Vdc-min controller).

Level

3

P1247 = 100 %

means parameters P1250, P1251 and P1252 (gain, integration time and differential time) are used as set. Otherwise, these are multiplied by P1247 (dynamic factor of Vdc-min).

Index:

P1247[0] : 1st. Drive data set (DDS)

P1247[1] : 2nd. Drive data set (DDS)

P1247[2] : 3rd. Drive data set (DDS)

Note:

Vdc controller adjustment is calculated automatically from motor and inverter data.

P1250[3]	Gain of Vdc-controller				Min:	0.00	Level
	CStat:	CUT	Datatype: Float	Unit: -	Def:	1.00	4
	P-Group:	FUNC	Active: Immediately	QuickComm.: No	Max:	10.00
Index:	Enters gain for Vdc controller.
	P1250[0]	: 1st. Drive data set (DDS)
	P1250[1]	: 2nd. Drive data set (DDS)
	P1250[2]	: 3rd. Drive data set (DDS)
P1251[3]	Integration time Vdc-controller				Min:	0.1	Level
	CStat:	CUT	Datatype: Float	Unit: ms	Def:	40.0	4
	P-Group:	FUNC	Active: Immediately	QuickComm.: No	Max:	1000.0

Enters integral time constant for Vdc controller.

Index:

P1251[0] : 1st. Drive data set (DDS)

P1251[1] : 2nd. Drive data set (DDS)

P1251[2] : 3rd. Drive data set (DDS)

P1252[3]	Differential time Vdc-controller				Min:	0.0	Level
	CStat:	CUT	Datatype: Float	Unit: ms	Def:	1.0	4
	P-Group:	FUNC	Active: Immediately	QuickComm.: No	Max:	1000.0

Enters differential time constant for Vdc controller.

Index:

P1252[0] : 1st. Drive data set (DDS)

P1252[1] : 2nd. Drive data set (DDS)

P1252[2] : 3rd. Drive data set (DDS)

150	MICROMASTER 440 Parameter List
	6SE6400-5BB00-0BP0