Beijer-electronics AN-BEI-P2-050 Manual de usuario descargar pdf (Pagina 3)

APPLICATION NOTE AN-BEI-P2-050

Date: 15/02/12

AN-BEI-P2-050 Open Loop Permanent Magnet Motor Control

Firmware Overview – Standard Parameters for PM motor set-up:

The following parameters are taken from the main Beijer Frequency Inverter P2 user manual but are required for

set-up / configuration of a PM motor. Parameters highlighted in ‘Blue’ are essential for successful PM motor control

with the Beijer Frequency Inverter P2. They are not configured during the auto-tune function and must be entered

manually:-

Par.

Description

Range

Units

Default

Explanation

P1-03

Acceleration

ramp time

0 – 3000.0

Sec

5.0

Acceleration ramp time from 0 to base speed (P1-09) in

seconds

P1-04

Deceleration

ramp time

0 – 3000.0

Sec

5.0

Deceleration ramp time from base speed (P1-09) to

standstill in seconds

P1-07

Nominal back

emf

0 – 250 / 500

Volts

(rms)

Phase – Phase voltage imposed by magnets while

motor rotating at motor rated speed (P1-10)

P1-08

Motor rated

current

25 – 100% of drive

rated current

Amps

(rms)

0.13

Rated (nominal) phase current of the motor (used for

over-current protection)

P1-09

Motor rated

frequency

25 – 500

0.13

Rated (nominal) frequency of the motor.

P1-10

Motor rated

speed

0 – 60,000

Rpm

Rated (nominal) speed of the motor.

P2-24

Switching

frequency

4 - 32

kHz

Model

Based

Value

Effective Power Stage switching frequency. Higher

frequencies give smoother operation but care must be

taken to apply necessary de-rate factors.

P4-02

Motor

parameter

auto-tune

0: Disable

1: Enable

---

When set to 1 the drive will perform an auto-tune

immediately of exiting the parameter. Values will be

written automatically to parameters P7-01, P7-03, &

P7-06.

P4-03

Speed

Controller

proportional

Gain

0.0 – 400.0

25.0

Sets the proportional gain value for the speed

controller. Higher values provide better output

frequency regulation and response. Too high a

value can cause instability or even over current

trips. For applications requiring best possible

performance, the value should be adjusted to suit

the connected load.

P4-04

Speed

Controller

integral time

constant

0.000 – 1.000

0.500

Sets the integral time for the speed controller.

Smaller values provide a faster response in

reaction to motor load changes, at the risk of

introducing instability. For best dynamic

performance, the value should be adjusted to suit

the connected load.

P4-07

Maximum

motoring

Torque limit

P4-08 – 200

200

When P4-01 is set to 3, sets the maximum torque limit.

P4-09

Maximum

generating

Torque limit

0.0 - 200

200

Sets the maximum regenerating torque limit permitted

by the drive.

1 2 3 4 5 6 7 8 9

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