Sanken SVCO6, Инструкция по эксплуатации, Страница: 107 / 326

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7-3 Description of Functions
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F1001 = 4: Torque control mode (speed sensorless vector control), F1001 = 5: Torque control mode (speed sensor
vector control).
The so-called torque control mode is a control mode for constant torque output. In torque control, speed sensorless
vector control mode (F1001=4) or speed sensor vector control mode (F1001=5) can be selected.
The procedure for implementation of torque control is shown as follows.
Speed sensorless vector control
(F1001=4)
Setting motor parameters (F5001)
Motor parameter auto tuning
(F1001=10 or 11)
Speed sensor vector control
(F1001=5)
Setting motor parameters(F5001)
Basic setting of PG sensor
F8100-related
Setting of torque command
Setting of starting • braking excitation
Setting of torque control gain
Test run
(Related function codes)
· When selecting torque control mode, please refer to relevant description of F6100.
· To select speed sensor vector control mode, please refer to relevant description of F8100 for setting of PG sensor.
Notes on use of torque control mode:
Note 1: When setting speed sensorless torque control mode, the following conditions must be met.
1. One inverter to one motor.
2 .The motor must be a Sanken designated 2, 4, 6 or 8-pole 3-phase induction motor or a similar motor.
3. To inverter rated, motor capacity that can drive is one level lower or 2 levels lower the motor or standard applicable
motor. (Only 8 pole motors, 3 levels lower motor can be chosen.)
4. The wiring length between the inverter and the motor shall be less than 30 m. If the wiring length exceeds 30 m,
conduct auto tuning of the motor constants in advance using the auto tuning mode 2.
Note 2: F5001 does not apply to the setting of 2 and 3 in Note 1, please set it correctly according to the above. And, the
inverter action and control characteristics cannot be guaranteed where the F5001's setting does not match ratings
of the connected motor.
Note 3: In the speed sensorless torque control mode, motor parameters, control frequency and voltage are used to drive
the motor, therefore control characteristics depend on motor parameters. Thus sometimes the best performance
may not be achieved. If motor characteristics, etc. are not mastered, auto measurement of motor parameters shall
be carried out using auto tuning.
Note 4: In the use of speed sensor vector control mode, please correctly configure the basic settings of PG sensor. The
motor can not be normally controlled if incorrectly configured.
Note 5: For starting in torque control mode with speed sensor, starting begins with the speed detected. For speed sensorless
starting, flying start will be carried out. If flying start frequency can not be detected, the motor will be started by
starting excitation.
When started by starting excitation, if over-current or other phenomena occur on the motor, then set F6005
(Multiple for starting excitation current) and F6006 (Starting excitation time) longer.