GE AF-300 P11 User Manual page 85

Motor 1 (P: Motor Parameters)
P01 Number of motor 1 poles
P 0 1 M 1 P O L E S
Setting range:: 2, 4, 6, 8, 10, 12, 14
This function sets the number of poles in Motor 1. If this
setting is not made, an incorrect motor speed (synchro-
nous speed) is displayed on the LED.
P02 Motor 1 (capacity)
P 0 2 M 1 – C A P
Set values for models with nominal motor capacity of
30Hp or less: 0.01 to 60Hp
Set values for models with nominal motor capacity of
40Hp or more: 0.01 to 800Hp
The nominal motor capacity is set at the factory. This
setting should only be changed when driving a motor with
a different capacity.
Set the nominal motor capacity listed in 9-1 Standard
Specifications. A value in the range from two ratings lower
to one rating higher than the nominal motor capacity can
be set. If a value outside this range is set, accurate
control cannot be guaranteed. If a value between two
nominal motor capacities is set, data for the lower
capacity is automatically stored for related function data.
If this function setting is changed, the following related
functions are automatically set to data values for the Fuji
3-phase standard motor.
— P03 Motor 1 (rated current)
— P06 Motor 1 (no-load current)
— P07 Motor 1 (% R1)
— P08 Motor 1 (% X1)
Note:
The values for the GE 3-phase standard motor are 230V,
60Hz, 4 poles for the 230V series; 460V, 60Hz, 4 poles for
the 460V series.
P03 Motor 1 (rated current)
-
P 0 3 M 1 I R
Setting range: 0.00 to 2,000 A
This function sets the rated current value for Motor 1.
P04 Motor 1 (Tuning)
P 0 4 M 1 T U N 1
This function measures and automatically stores motor
data.
Value Operation
0 Inactive
Measure the motor's primary resistance (%R1)
and base frequency leakage reactance (%X) when
1
the motor is stopping and automatically store both
values in P07 and P08.
Measure the motor's primary resistance (%R1)
and base frequency leakage reactance (%X) when
2 the motor is stopping, measure the no-load current
(lo) when the motor is running, and automatically
store these values in P06, P07, and P08.
Perform auto tuning if the previously stored data in P06
No-load current, P07 %R1, and P08 %X differs from the
actual motor data. Some typical examples are listed
below. Auto tuning improves control and calculation
accuracy.
– When a motor other than the GE standard 3-phase
motor is used, and accurate data is required for close
control.
– When output-side impedance cannot be ignored, e.g.
when the cable between the drive and the motor is
too long or when a reactor is connected.
– When %R1 or %X is unknown, e.g. when a non-
standard or special motor is used.
Tuning Procedure
1. Adjust the voltage and frequency according to motor
data. Adjust functions F03 Maximum output fre-
quency, F04 Base frequency, F05 Rated voltage, and
F06 Maximum output voltage.
2. First enter motor constants that cannot be tuned. Set
functions P02 Capacity, P03 Rated current, and P06
No-load current (no-load current setting is not
required if P04=2).
3. When tuning the no-load current, beware of motor
rotation.
4. Set function P04 Auto tuning = 1 (motor stop) or 2
(motor rotation). Press the FUNC/DATA key to store
the set value and press the FWD key or REV key.
Tuning will start.
5. Tuning may take several seconds. If P04=2, the motor
accelerates up to half the base frequency according
to acceleration time, is tuned for the no-load current,
and decelerates according to the deceleration time.
The total tuning time varies depending on the settings
for acceleration and deceleration time.
6. Press the STOP key, and the procedure will end.
Note: Use function A13 Motor 2 (auto tuning) to tune
Motor 2. In this case, the set values described in (1) and
(2) above are for functions A01, etc. corresponding to
Motor 2.
WARNING
If the auto tuning value is set to 2, the motor rotates
at a maximum of half the base frequency. Beware of
motor rotation as injury may result.
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