Magnetek IMPULSE VG+ Series 3, Инструкция по эксплуатации, Страница: 107 / 183

IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
5-54
Motor Set-up
E2 constants define motor parameters. Normally, the default settings for E2 constants are determined
by KVA selection (O2-04). In flux vector control the E2 constants will be set automatically during
auto-tuning. If the control method is V/F (A1-02=0), the motor rated current should be entered into
E2-01.
If auto-tuning cannot be performed, some E2 constants can be calculated using the motor’s
nameplate information.
Motor rated slip frequency (E2-02) can be calculated by using the following equation:
Motor terminal resistance E2-05 can be calculated by using the following equation:
Parameter
Code
Display Function Range
Initial
Value Access
Level
E2-01 Motor Rated FLA Motor-rated current 0.01–1500.0 A * Adv
E2-02 Motor Rated Slip Motor-rated slip frequency 0.00-20.00 Hz * Adv
E2-03 No-Load Current Motor no-load current 0.0–1500.0 A * Adv
E2-04 Number of Poles Number of poles in motor 2-48 4 Adv
E2-05 Term Resistance Motor terminal resistance 0.000–65.000
Ω
* Adv
E2-06 Leak Inductance Leakage Inductance 0.0–30.0% * Adv
E2-07 Saturation Comp 1 Core-Saturation Compensation
Coefficient 1 0.00–0.50 * Adv
E2-08 Saturation Comp 2 Core-Saturation Compensation
Coefficient 2 0.00–0.75 * Adv
E2-11 Motor Rated Power Rated output 0.0-650 Kw * Adv
* Initial value is determined by O2-04 (kVA Selection)
This value is automatically set during auto tuning
fs = f - (N•P)
120
Where... fs: slip frequency (Hz)
f: rated frequency (Hz)
N: rated motor speed (rpm)
P: number of motor poles
rt
=
r
p •
273 + (25˚C + Ti)/2
273 + Ti
Where...
rt
: motor terminal resistance
r
p: Phase-to-Phase resistance at insulation class temperature
Ti: insulation class temperature (˚C)