P-## Motor Data - GE AF-650 GP Programming Manual

Parameter Descriptions

3.6 P-## Motor Data

Parameter group related to setting motor data in the drive.
3.6.1 P-0# Motor Data
3 3
Parameters to configure Motor, Auto Tuning and Slip
Compensation.
P-01 Motor Poles
Range:
4 [2 - 100]
*
Poles ~n @ 50 Hz
n
2 2700-2880
4 1350-1450
6 700-960
Table 3.13
Table 3.15 shows the number of poles for normal speed
ranges of various motor types. Define motors designed for
other frequencies separately. The motor pole value is
always an even number, because it refers to the total
number of poles, not pairs of poles. The frequency
converter creates the initial setting of P-01 Motor Poles
based on F-04 Base Frequency and P-06 Base Speed.
P-02 Motor Power [HP]
Range:
4.00 [0.09 -
hp 3000.00 hp]
*
P-03 Motor Current
Range:
7.20 A [0.10 - 10000.00
*
A]
P-04 Auto Tune
Option:
56
AF-650 GP Programming Guide
Function:
Enter the number of motor poles.
~n @ 60 Hz
n
3250-3460
1625-1730
840-1153
Function:
Enter the nominal motor power in HP
according to the motor nameplate data.
The default value corresponds to the
nominal rated output of the unit. This
parameter is visible in keypad if
K-03 Regional Settings is [1] US
Function:
Enter the nominal motor current
value from the motor nameplate
data. The data are used for
calculating torque, motor protection
etc.
Function:
NOTE
This parameter cannot be adjusted while
the motor is running.
The Auto Tune function optimises dynamic
motor performance by automatically
optimising the advanced motor parameters
P-04 Auto Tune
Option: Function:
(P-30 Stator Resistance (Rs) to P-35 Main
Reactance (Xh)) at motor standstill.
Activate the Auto Tune function by pressing
[Hand] after selecting [1] or [2] Reduced Auto
Tune. After a normal sequence, the display will
read: "Press [OK] to finish Auto Tune". After
pressing the [OK] key the frequency converter
is ready for operation.
[0] Off
*
[1] Full Auto Performs Auto Tune of the stator resistance R
Tune the rotor resistance R
reactance X
and the main reactance X
option if an LC filter is used between the
frequency converter and the motor.
[2] Reduced Performs a reduced Auto Tune of the stator
Auto Tune resistance R
Note:
•
For the best results run Auto Tune on a cold
motor.
•
Auto Tune cannot be performed while the motor
is running.
•
Auto Tune cannot be performed on permanent
magnet motors.
NOTE
It is important to set motor parameters F-04, F-05, and
P-02 to P-08 correctly, since these form part of the Auto
Tune algorithm. An Auto Tune should be performed to
achieve optimum dynamic motor performance. It may take
up to 10 min, depending on the power rating of the
motor.
NOTE
Avoid generating external torque during Auto Tune.
NOTE
If one of the settings in parameters F-04, F-05, or P-02 to
P-08 is changed, P-30 Stator Resistance (Rs) to P-01 Motor
Poles, the advanced motor parameters, will return to
default setting.
NOTE
Auto Tune will work problem-free on 1 motor size down,
typically work on 2 motor sizes down, rarely work on 3
sizes down and never work on 4 sizes down. Keep in mind
that the accuracy of the measured motor data will be
poorer when operating on motors smaller than nominal
drive size.
DET-618C
, the stator leakage
r
, the rotor leakage reactance X
1 2
. Do not select this
h
in the system only.
s
,
S