Motor Autotuning; Operating In Sensorless Vector Speed Control Mode; Sensorless Vector Torque Control Mode - Invertek Drives Optidrive Plus 3GV Compact User Manual

5.1. Motor Autotuning

Optidrive Plus uses a sophisticated Voltage Vector Control Method as a factory default setting to ensure best possible motor operation. This
control method requires the Optidrive to carry out an autotune to measure certain motor parameters prior to operation, to ens control method requires the Optidrive to carry out an autotune to measure certain motor parameters prior to operation, to ensure this function control method requires the Optidrive to carry out an autotune to measure certain motor parameters prior to operation, to ens
operates correctly, and reduce the risk of nuisance tripping. reduce the risk of nuisance tripping.
Whilst the autotune procedure does not drive or spin the motor, the motor shaft may still turn. It is not normally necessary Whilst the autotune procedure does not drive or spin the motor, the motor shaft may still turn. It is not normally necessary Whilst the autotune procedure does not drive or spin the motor, the motor shaft may still turn. It is not normally necessary to
uncouple the load from the motor; however the user should ensure that no risk arises uncouple the load from the motor; however the user should ensure that no risk arises from the possible movement of the motor
shaft.
Autotune after Factory Reset or from Factory Set Parameters Autotune after Factory Reset or from Factory Set Parameters
Following a factory reset (See section 5.4), the correct
(Motor Rated Current) and P1-09 (Motor Rated Frequency). Providing that P1
automatically carry out an autotune on the motor the first time it is enabled. During the autotune, the display will show autotune on the motor the first time it is enabled. During the autotune, the display will show autotune on the motor the first time it is enabled. During the autotune, the display will show
procedure may take several minutes to complete depending on the motor. Once the autotune is completed, the drive will operate procedure may take several minutes to complete depending on the motor. Once the autotune is completed, the drive will operate as normal, and procedure may take several minutes to complete depending on the motor. Once the autotune is completed, the drive will operate
no further autotuning will be required unless the motor or drive control mode is changed (P4 further autotuning will be required unless the motor or drive control mode is changed (P4-01).
User Selected Autotune
The user can program the drive to carry out an autotune if required, as follows:- The user can program the drive to carry out an autotune if required, as follows:
Ensure the motor nameplate values are correctly entered as described above. Ensure the motor nameplate values are correctly entered
Set P1-14 = 101 to allow access to Parameter Groups 2, 3 and 4 14 = 101 to allow access to Parameter Groups 2, 3 and 4
Set P4-02 = 1 and press the
The autotune will begin immediately when P4-02 is set to 1, and no external enable signal is required. During the autotune The autotune will begin immediately when P4
procedure, the motor shaft may turn. It is not normally necessary to uncouple the load from the motor; however the user should e, the motor shaft may turn. It is not normally necessary to uncouple the load from the motor; however the user should e, the motor shaft may turn. It is not normally necessary to uncouple the load from the motor; however the user should
ensure that no risk arises from the possible movement of the motor shaft. ensure that no risk arises from the possible movement of the motor shaft.

5.2. Operating in Sensorless Vector Speed Control Mode

Operating in Sensorless Vector Speed Control Mode
Optidrive Plus can be programmed by the user to operate in Sensorless Vector mode, which provides enhanced low speed torque, optimum mo Plus can be programmed by the user to operate in Sensorless Vector mode, which provides enhanced low speed torque, optimum mo Plus can be programmed by the user to operate in Sensorless Vector mode, which provides enhanced low speed torque, optimum motor
speed regulation regardless of load and accurate control of the motor torque. In most applications, the default Voltage Vector control mode will speed regulation regardless of load and accurate control of the motor torque. In most applications, the default Voltage Vecto speed regulation regardless of load and accurate control of the motor torque. In most applications, the default Voltage Vecto
provide adequate performance, however if Sensorless Vector operation is required, the following procedure should be followed: provide adequate performance, however if Sensorless Vector operation is required, the following procedure should be followed:- provide adequate performance, however if Sensorless Vector operation is required, the following procedure should be followed:
Ensure the motor nameplate values are correctly entered in P1-07 (Motor Rated Voltage), P1-08 (Motor Rated Curr Ensure the motor nameplate values are correctly entered in P1
Frequency)
Set P1-14 = 101 to allow access to parameter groups 2, 3 and 4 14 = 101 to allow access to parameter groups 2, 3 and 4
The Motor Rated Power Factor from the motor nameplate MUST be entered in P4 The Motor Rated Power Factor from the motor nameplate MUST be entered in P4-05. If this data is not available, consult the motor manufacturer
for guidance.
Set P4-01 = 0 to select Sensorless Vector Speed Control 01 = 0 to select Sensorless Vector Speed Control
Set P4-02 = 1 to carry out an motor autotune
Parameters P4-03 and P4-04 have a significant effect on the behaviour of the motor when operating in vector mode, see section 04 have a significant effect on the behaviour of the motor when operating in vector mode, see section 6.4 for further 04 have a significant effect on the behaviour of the motor when operating in vector mode, see section
details, or the Optidrive Advanced User Guide.
The autotune will begin immediately when P4-02 is set to 1, and no external enable signal is required. During the autotune The autotune will begin immediately when P4
procedure, the motor shaft may turn. It is not normally necessary to uncouple the load from the motor; however the user should procedure, the motor shaft may turn. It is not normally necessary to uncouple the load from the motor; however the user shoul procedure, the motor shaft may turn. It is not normally necessary to uncouple the load from the motor; however the user shoul
ensure that no risk arises from the possible movement of the motor shaft. ensure that no risk arises from the possible movement of the motor shaft.

5.3. Sensorless Vector Torque Control Mode

Sensorless Vector Torque Control Mode
For applications which require the drive to control motor torque as opposed to motor speed, the Optidrive Plus can be programmed to operate in which require the drive to control motor torque as opposed to motor speed, the Optidrive Plus can be programmed to operate in which require the drive to control motor torque as opposed to motor speed, the Optidrive Plus can be programmed to operate in
Torque Control mode. When operating this way, the drive internal ramp times (P1-03 and P1-04) are disabled except during starting Torque Control mode. When operating this way, the drive internal ramp times (P1
Please refer to the Optidrive Plus Advanced User Guide for further information on this. Please refer to the Optidrive Plus Advanced User Guide for further information on this.
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Optidrive Plus 3
Control Method as a factory default setting to ensure best possible motor operation. This Control Method as a factory default setting to ensure best possible motor operation. This
), the correct data from the motor nameplate should be entered in P1 data from the motor nameplate should be entered in P1-07 (Motor Rated Voltage), P1-08
09 (Motor Rated Frequency). Providing that P1-08 is adjusted from the factory default setting, the Optidrive will
button.
02 is set to 1, and no external enable signal is required. During the autotune
02 is set to 1, and no external enable signal is required. During the autotune
GV
Compact - User Guide
08 is adjusted from the factory default setting, the Optidrive will
05. If this data is not available, consult the motor manufacturer
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from the possible movement of the motor
Auto- - - - t t t t Auto Auto Auto
08 (Motor Rated Current) and P1-09 (Motor Rated
04) are disabled except during starting and stopping.
. The test