IMPULSE•G+ Mini Advanced Instruction Manual – March 2014
5-44
Motor Set-up
E2 constants define motor parameters. Normally, the default settings for E2 constants are determined
by KVA selection (O02.04). In open loop vector control the E2 constants will be set automatically
during auto-tuning. If the control method is V/f (A01.02 = 00), the motor rated current should be
entered into E02.01.
If auto-tuning cannot be performed, some E2 constants can be calculated using the motor’s
nameplate information.
Motor rated slip frequency (E02.02) can be calculated by using the following equation:
Motor terminal resistance E02.05 can be calculated by using the following equation:
Parameter
Code Name Function Range
Initial
Value
Access
Level
E02.01 Motor Rated FLA Motor-rated current full load
amps
0.01–70.0 A * Basic/Adv
E02.02 Motor Rated Slip Motor-rated slip frequency 0.00–20.00 Hz ** Adv
E02.03 No-Load Current Motor no-load current 0.0–70.0 A ** Adv
E02.04 Number of Poles Number of poles in motor 02–48 04 Adv
E02.05 Terminal Resistance Motor terminal resistance 0.000–65.000 ** Adv
E02.06 Leakage Inductance Motor Leakage Inductance 0.0–40.0% ** Adv
E02.07 Saturation Comp 1 Core-Saturation Compensation
Coefficient 1
0.00–0.50 ** Adv
E02.08 Saturation Comp 2 Core-Saturation Compensation
Coefficient 2
0.00–0.75 ** Adv
E02.09 Motor Mechanical Loss Mechanical Torque Loss as a %
of motor torque
0.0–10.0% 0.0 Adv
E02.10 Motor Iron Loss of
Torque Compensation
0–65535 ** Adv
E02.11 Motor Rated Power Rated output 0.0–20.0 HP ** Adv
E02.12 Saturation Comp 3 Core-Saturation Compensation
Coefficient 3
1.30–5.00% ** Adv
* Initial value is determined by O02.04 (kVA Selection)
** This value is automatically set during auto tuning
120
* PN
ff
s
Where… f
s
: slip frequency (Hz)
f: rated frequency (Hz)
N: rated motor speed (rpm)
P: number of motor poles
i
i
pt
T
TC
rr
273
2
25
273
*
Where… r
t
: motor terminal resistance
r
p
: Phase-to-Phase resistance at insulation class temperature
T
i
: insulation class temperature (°C)
To Next Page
Loading...
