Efficient Networks S120 manual ˭ ຘ N7 QRP

Models: S120

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Vector control

4.15Instructions for commissioning permanent-magnet synchronous motors

Table 4-7 Equivalent circuit diagram for motor data

Parameter

Description

Remark

p0350

Motor stator resistance, cold

-

p0356

Motor stator inductance

-

p0357

Motor stator inductance, d axis

-

WARNING

As soon as the motor starts to rotate, a voltage is generated. When work is carried out on the converter, the motor must be safely disconnected. If this is not possible, the motor must be locked by a holding brake, for example.

Features

Field weakening up to approx. 1.2 * rated speed (this depends on the drive converter supply voltage and the motor data, also refer to limitations/ constraints)

Flying restart (for operation without encoder, only possible with additional VSM)

Vector closed-loop speed and torque control

Vector V/f control for diagnostics

Motor identification

Automatic rotating encoder adjustment (the zero encoder position is calibrated)

Speed controller optimization (rotating measurement)

Thermal protection via temperature sensor (PTC/KTY)

All encoders that can be connected to an SMC10, SMC20 or SMC30 are supported.

Operation with or without encoder is possible.

Supplementary conditions

Maximum speed or maximum torque depend on the converter output voltage available and the back EMF of the motor (calculation specifications: EMF must not exceed Urated converter).

● Calculating the maximum speed:

Q

Q

 



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RU

 

 

 

 

Q

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Calculating kT see "Commissioning".

9'&OLP 

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150

Drive Functions

Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

Page 150
Image 150
Efficient Networks S120 manual ˭ ຘ N7 QRP