Parameter description issue 01/06 – Siemens 440 User Manual

Page 154

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Parameter Description

Issue 01/06

MICROMASTER 440 Parameter List

154

6SE6400-5BB00-0BP0

P1300 = 19 : V/f control with independent voltage setpoint

The following table presents an overview of control parameters (V/f) that can be modify in relationship to
P1300 dependencies:

ParNo.

Level

0

1

2

3

5

6

19

20

22

21

23

P1300[3]

2

x

x

x

x

x

x

x

x

x

x

x

P1310[3]

2

x

x

x

x

x

x

x

P1311[3]

2

x

x

x

x

x

x

x

P1312[3]

2

x

x

x

x

x

x

x

P1316[3]

3

x

x

x

x

x

x

x

P1320[3]

3

x

P1321[3]

3

x

P1322[3]

3

x

P1323[3]

3

x

P1324[3]

3

x

P1325[3]

3

x

P1330[3]

3

x

P1333[3]

3

x

x

P1335[3]

2

x

x

x

x

P1336[3]

2

x

x

x

x

P1338[3]

3

x

x

x

x

P1340[3]

3

x

x

x

x

x

x

x

P1341[3]

3

x

x

x

x

x

x

x

P1345[3]

3

x

x

x

x

x

x

x

P1346[3]

3

x

x

x

x

x

x

x

P1350[3]

3

x

x

x

x

x

x

x

U/f

SLVC

VC

P1300 =

Parameter name

Control mode
Continuous boost
Acceleration boost
Starting boost
Boost end frequency
Programmable V/f freq. coord. 1
Programmable V/f volt. coord. 1
Programmable V/f freq. coord. 2
Programmable V/f volt. coord. 2
Programmable V/f freq. coord. 3

CI: Voltage setpoint
Start frequency for FCC
Slip compensation
CO: U/f Slip limit
Resonance damping gain V/f
Imax freq. controller prop. gain
Imax controller integral time
Imax controller prop. gain
Imax voltage ctrl. integral time
Voltage soft start

Programmable V/f volt. coord. 3

V/f

SLVC / VC can provide excellent performance for the following types of application:
-

Applications which require high torque performance

-

Applications which require fast respond to shock loading

-

Applications which require torque holding while passing through 0 Hz

-

Applications which require very accurate speed holding

-

Applications which require motor pull out protection


SLVC/VC-Restrictions:
-

SLVC / VC is dependent on the accuracy of the motor model being used and the measurements being
performed by the inverter. There are therefore certain restrictions on the use of SLVC / VC:

(max. frequency)

f

max

= min(200 Hz, 5 P0310)

r0207

r0209

r0207

P0305

4

1

(ratio of rated motor current to rated inverter current)

no synchronuos motor


Recommended means of SLVC/VC-commissioning:
-

For correct operation under SLVC / VC control it is imperative that the name plate data of the motor
(P0304 - P0310) is correctly entered and that the motor data identification (P1910) must be carried out
on a cold motor. It is also necessary to ensure that the motor ambient temperature is correctly entered
in P0625 if this is significantly different from the default value of 20°C. This must be done after the quick
commissioning has been completed (P3900) but before the motor data identification measurements are
carried out.

-

See parameter P0400 and documentation of encoder and encoder module when commissioning VC
(P1300 = 21 or 23).


SLVC/VC-Optimisation:

The following parameters can be adjusted by the user to improve performance.
-

P0003 = 3

-

P0342: Total / motor inertia ratio

Sensorless Vector Control (SLVC):
-

P1470: P gain (SLVC)

-

P1472: I term (SLVC)

-

P1610: Continuous torque boost (SLVC, open loop boost)

-

P1611: Acceleration torque boost (SLVC, open loop boost)

-

P1750: Control word of motor model

-

P1755: Start-frequency motor model (SLVC)

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