Siemens 440 manual R1538 CO Upper torque limit total, R1539 CO Lower torque limit total, 179

Issue 01/06 Parameter Description

r1538	CO: Upper torque limit (total)		Min:	-
	Datatype: Float	Unit: Nm	Def:	-
	P-Group: CONTROL		Max:	-

Displays total upper torque limitation.

Torque limitation:

Level

2

P1530

P1531

CI: Upper trq. limCO: Upper trq. lim [Nm]

Motoring power lim Regener. power lim

CO: Upper trq. lim

r1526

P1522.C

P1520

(1520:0)

CO: Lower trq. lim [Nm]

CI: Lower trq. lim

Torque limitation

r1527

CO: Lower trq. lim

P1523.C

P1521

(1521:0)

P1525

r0067

CO: Outp cur limit [A]

Scal. low trq . lim

P0640

CO:Total up TrqLim [Nm]

Motor ovl fact [%]

Motor / inverter

r1538

P0305

protection

CO:Total lw TrqLim [Nm]

CI: Add. trq. setp

Rated mot. current

r1539

P1511.C

Max. inverter cur [A]

CO: Total trq setp [Nm]

(0:0)

r0209

r0079

Speed controller

Current

or

controller

Torque controller

r1539	CO: Lower torque limit (total)		Min:	-
	Datatype: Float	Unit: Nm	Def:	-
	P-Group: CONTROL		Max:	-

Displays total lower torque limitation.

Details:

See parameter r1538.

Level

2

3.29.2.7Flux control

P1570[3] CO: Fixed value flux setpoint				Min:	50.0
CStat:	CUT	Datatype: Float	Unit: %	Def:	107.0
P-Group:	CONTROL	Active: Immediately	QuickComm.: No	Max:	200.0

Level

2

Parameter to set the flux setpoint as a % relative to the rated motor flux.

Index:

P1570[0] : 1st. Drive data set (DDS)

P1570[1] : 2nd. Drive data set (DDS)

P1570[2] : 3rd. Drive data set (DDS)

Note:

-In the base speed range, the flux setpoint P1570 is converted into the field-generating current component isd (P1570 = 100% corresponds to r0331).

-For values below 100%, the drive is under-magnetized and above this, is over-magnetized.

-If P1570 is set to more than 100%, then the flux setpoint, depending on the load, is increased from 100% (under no-load conditions) to this value (under rated load, refer to the diagram).

-If in so doing, the maximum drive inverter output voltage is reached, the rotor flux is reduced in order to keep the output voltage constant (or the EMF) with increasing speed.

-The maximum possible output voltage r0071 of the drive inverter is determined by the DC link voltage r0026 and the maximum modulation depth P1803 in the gating unit.

Ψ set

P1570

Ψ N

(100 %)

Ψ

iMotor iN,Motor

iMotor

iN,Motor

f

Field weakening

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

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