Trinamic TMC603-EVAL evaluation Board TMC603-EVAL 데이터 시트
제품 코드
TMC603-EVAL
TMC603-EVAL MANUAL (V. 1.01 / April 14th, 2009)
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Copyright © 2009 TRINAMIC Motion Control GmbH & Co. KG
If you select the low side chopper mode, the low side drivers are chopped only. In the high side
chopper mode the high side drivers are chopped only. If you select the dual chopper mode, the high
side drivers and the low side drivers are chopped with the same signal. The option “Invert Hall
Sensors” can be selected optionally if the signals of the hall sensors are inverted to the hallFX™
signals. If this option is unused the firmware of the TMC603 evaluation board will configured the
correct setting automatically.
6.3.4
chopper mode the high side drivers are chopped only. If you select the dual chopper mode, the high
side drivers and the low side drivers are chopped with the same signal. The option “Invert Hall
Sensors” can be selected optionally if the signals of the hall sensors are inverted to the hallFX™
signals. If this option is unused the firmware of the TMC603 evaluation board will configured the
correct setting automatically.
6.3.4
The operating mode “Sine, HallFX, Closed Loop”
The last mode is also a sensorless block commutat
ion with hallFX™ and closed loop current control. In
this mode the motor will start with sinusoidal commutation by using a closed loop ramp up. This means
that the closed loop control limits the current. The PWM duty cycle is increased depending on the
measured current. Thereafter, the motor will run by using the BLDC back EMF commutation hallFX™.
that the closed loop control limits the current. The PWM duty cycle is increased depending on the
measured current. Thereafter, the motor will run by using the BLDC back EMF commutation hallFX™.
6.4 Configuring the parameters and settings
Depending on the selected operating mode, several parameters and settings should be configured
before running the motor. Other settings are disabled because these options are unnecessary. In the
following these required options shall be described.
6.4.1
before running the motor. Other settings are disabled because these options are unnecessary. In the
following these required options shall be described.
6.4.1
Configuration of operating mode “Block, HallFX, Open Loop”
Before starting up the BLDC motor, some information about the motor are required (Figure 9). The first
parameter is the resistance of the motor coils. The second parameter is the maximum current. This is
the peak current of the motor. The last parameters are the pole pair number and the BEMF constant of
the motor. Please take into account that the unit of the BEMF constant is in rpm/V.
parameter is the resistance of the motor coils. The second parameter is the maximum current. This is
the peak current of the motor. The last parameters are the pole pair number and the BEMF constant of
the motor. Please take into account that the unit of the BEMF constant is in rpm/V.
Figure 9
: Motor parameters and motor startup parameters (“Block, HallFX, Open Loop”)
Furthermore some parameters for open loop ramp up are necessary (Figure 9
). The value “Speed” is
the starting point of ramp up. The value “Acceleration” is the angle acceleration for startup. The ramp
up time is the duration of ramp up. The value “Wait start pos.” is the time before ramp up. In this time
the rotor turns to the definite start position. The direction can be changed by setting CCW (counter
clockwise) or CW (clockwise).
Now, enter the speed reference value (Speed
Ref.) and the speed control time (Speed Ctl.
Time). The speed control time is a time
duration in ms. In this time the PWM duty cycle
counts up or down by a value of 1/16 %. You
can change these parameters at any time.
Please keep in mind to press the “Set” button.
Thereafter, press the “Start” button and the
motor will ramp up via open loop current
control and will run by using the BLDC back
EMF commutation hallFX™. The motor will
stop, when
up time is the duration of ramp up. The value “Wait start pos.” is the time before ramp up. In this time
the rotor turns to the definite start position. The direction can be changed by setting CCW (counter
clockwise) or CW (clockwise).
Now, enter the speed reference value (Speed
Ref.) and the speed control time (Speed Ctl.
Time). The speed control time is a time
duration in ms. In this time the PWM duty cycle
counts up or down by a value of 1/16 %. You
can change these parameters at any time.
Please keep in mind to press the “Set” button.
Thereafter, press the “Start” button and the
motor will ramp up via open loop current
control and will run by using the BLDC back
EMF commutation hallFX™. The motor will
stop, when
the button “Stop” is pressed.
Figure 10: Speed control options
In order to change the motor speed you can enter the new speed reference (Speed Ref.) by pressing
the button “Set”. Thereupon, the motor will accelerate and decelerate respectively. In addition you can
disable the speed control by deactivating the option “Enable speed control” (Figure 10). In this case
you can enter the PWM duty cycle (Duty cycle ref.) by pressing the button “Set”. If you disable the