Fuji Electric FRENIC-Ace series - Page 160

4.8 Configuring Function Codes for Drive Controls
4-24
■ Selection of tuning type
Check the situation of the machine and select either “Tuning with the motor stopped (P04 = 1)” or “Tuning with the
motor running (P04 = 2).” For the latter tuning, adjust the acceleration and deceleration times (F07 and F08) and
specify the rotation direction that matches the actual rotation direction of the machine.
When P30 = 0 (Pull-in by current) or 3 (Pull-in by current for IPMSM), “Tuning with the motor stopped”
cannot be performed.
In this case the alarm er7 with subcode 5003 occurs.
P04 data
Motor parameters
subjected to tuning
Tuning
Select under the following
conditions
1
Tune while the
motor stops.
Armature resistance
(P60)
d-axis inductance (P61)
q-axis inductance (P62)
Reserved (P84, P88)
Tuning with the motor stopped.
- Impossible to rotate the motor
(e.g., when a mechanical load
has already been applied to
the motor).
- P30 is set to “1” or “2.”
- See (Note 1).
2
Tune while the
motor is
rotating
Armature resistance
(P60)
d-axis inductance (P61)
q-axis inductance (P62)
Induced voltage (P63)
Reserved (P84, P88)
Tuning the armature resistance, d-axis
inductance, q-axis inductance, and
parameter values (P84 and P88) with
the motor stopped.
Tuning the induced voltage with the
motor running at 50 % of the base
frequency.
- Possible to rotate the motor,
provided that it is safe.
(Note 1) When P30 = 0 (Pull-in by current) or 3 (Pull-in by current for IPMSM), “Tuning with the motor stopped”
cannot be performed. In this case the alarm er7 with subcode 5003 occurs.
The tuning results of motor parameters will be automatically saved into their respective function codes.
■ Preparation of machine
In preparation for tuning, remove the motor coupling with the load and deactivate the safety devices before rotation
tuning.
■ Tuning procedure
1)
Set function code P04 to “1” or “2” and press the key. (The blinking of 1 or 2
on the LED monitor will slow down.)
2) Enter a run command. (The factory default is “ key on the keypad for forward
rotation.”) To switch to reverse rotation or to select the terminal signal FWD or REV
as a run command, change the data of function code F02.
3)
The moment a run command is entered, the display of 1 or 2 lights up, and tuning
starts with the motor stopped. (Tuning time: Approx. 5 to 40 s.)
4)
If P04 = 2, after the tuning in “
3)”
above, the motor is accelerated to approximately
50% of the base frequency and then tuning starts. Upon completion of
measurements, the motor decelerates to a stop.
(Estimated tuning time: Acceleration time + 10 s + Deceleration time)
5) If the terminal signal FWD or REV is selected as a run command (F02 = 1),
end
appears upon completion of the measurements. Turning the run command OFF
completes the tuning.
If the run command has been given through the keypad or the communications
link, it automatically turns OFF upon completion of the measurements, which
completes the tuning.
6) Upon completion of the tuning, the subsequent function code appears on the
keypad.
The default value of the speed regulator is set low to prevent your system from oscillation (hunting).
However, hunting may occu
r during tuning due to mechanical conditions, causing a tuning error ( er7
), a
stepout detection error (
erd ) or a speed mismatch error ( ere ). If a tuning error ( er7
) or a stepout
protection error (
erd ) occurs, reduce the gain for the speed regulator; if a speed mismatch error ( ere
)
occurs, cancel the speed mismatch detection function (d23=0). After that, p
erform tuning again.