Beijer Electronics AN-BEI-P2-050 - Manual (Page 3)

APPLICATION NOTE AN-BEI-P2-050 Date: 15/02/12
AN-BEI-P2-050 Open Loop Permanent Magnet Motor Control 3
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)
8 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 Hz 0.13 Rated (nominal) frequency of the motor.
P1-10 Motor rated
speed 0 – 60,000 Rpm 0 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 --- 0 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 s 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.