Mitsubishi Electronics FR-V540-1.5K to 55K ユーザーズマニュアル

120

Offline auto tuning (Pr. 80 to Pr. 96)

3.12 Offline auto tuning (Pr. 80 to Pr. 96)

3.12.1 Offline auto tuning function

(Pr. 9, Pr. 80, Pr. 81, Pr. 83, Pr. 84, Pr. 71, Pr. 96, Pr. 450, Pr. 452

)

3.12.2 Parameters

Set the following parameters.

If any other manufacturer’s motor is used, using the offline auto tuning function runs the motor with the

optimum operating characteristics.

z By performing offline auto tuning, the inverter measures the necessary motor constants.

z Offline auto tuning can be performed with an inertia load, e.g. coupling, connected. (As the load is lighter,

tuning accuracy is higher. Tuning accuracy does not change even if the inertia is large.)

z For the offline auto tuning, you can select either the motor non-rotation mode or rotation mode.

The rotation mode has higher tuning accuracy than the non-rotation mode. The rotation mode should be

selected for the online auto tuning.

z If any other manufacturer’s motor is used, perform offline auto tuning (Pr. 96 = "101") with motor alone to

run the motor before performing online auto tuning. (The motor with inertia load can be connected.)

z Note that it is necessary to perform offline auto tuning (non-rotation mode (Pr. 96 = "1")) in order for the

wiring length resistance to be reflected on the control when the wiring length of the Mitsubishi motor used

(SF-V5RU, SF-JR, SF-HRCA) is long (30m or longer as a reference).
(For online auto tuning,

refer to the Instruction Manual (basic). For other settings, refer to page 39)

CAUTION

1. The motor capacity is equal to or one rank lower than the inverter capacity.

2. Special motors such as high-slip motor and high-speed motor cannot be tuned.

3. Motor runs at up to about the rated speed of the motor.

4. Make sure that the motor is connected. (At a tuning start, the motor should be at a stop.)

5. Tune the motor alone without connecting a load (e.g. frictional stationary load) to the motor.

(An inertia load such as a coupling may remain connected.)

6. Use the encoder that is coupled directly to the motor shaft without looseness.

7. Offline auto tuning will not be performed properly if it is performed with a reactor or surge voltage

suppression filter (FR-ASF-H) connected between the inverter and motor. Remove it before starting

tuning.

REMARKS

• When using the Mistubishi vector dedicated motor (SF-V5RU,SF-VR), Mitsubishi standard motor (SF-JR with encoder), or

MItsubishi constant-torque motor (SF-HRCA with encoder), offline auto tuning is not necessary.

• You can copy the tuning data (motor constants) to another inverter with the PU (FR-DU04-

/FR-PU04V).

• The offline auto tuning status can be monitored with the PU (FR-DU04-

/FR-PU04V).

Parameter

Name

Setting Range

Factory Setting

Remarks

Applied motor

Refer to page 111 and set "3 (standard motor)", "13 (constant-torque motor)" or "33

(SF-V5RU or SF-VR)". Electronic thermal characteristics are also changed in

accordance with the motor.

Electronic thermal O/L relay

0 to 500A

(Set 0 for use of

an external

thermal relay.)

Refer to the motor rating plate
and set the rated value.
(If two or more rated values are
given in the motor rating plate, set
the values for 200V/60Hz(400V/
60Hz)

Motor capacity

0.4 to 55kW

Inverter capacity

Number of motor poles

2, 4, 6

Rated motor voltage

0 to 1000V

200V/400V

Rated motor frequency

10 to 200Hz

60Hz

Auto tuning setting/status

0, 1, 101

: Auto tuning not performed

: Tuning performed without

motor running

101 : Tuning performed with motor

running

851

Number of encoder pulses

0 to 4096

2048

852

Encoder rotation direction

0,1

876

Thermal relay protector
input

0,1

speed

torque