Jetter JVM-104-O09, Руководство пользователя

Страница: 40 / 62

Jetter AG Programming | 7
JVM-104-O09 User Manual 40 / 62
R 6010x0011 Dither function - Setting the width of the dither signal in percent
This register lets you set the width of the dither signal. Value 100 corresponds to
± 10 %.
Property Description
Value for input 0 … 1000
Unit ±0.1 %
Tab. 49: Dither function - Setting the width of the dither signal in percent
7.7.4 Multi-purpose outputs PA3 and PA4 functioning as H-bridges
The JVM-104-O09 lets you control multi-purpose outputs PA3 and PA4 as H-
bridges.
To control an output as H-bridge, the program must include the following steps:
Clockwise rotation 1. Activate the low-side output of PA3.
R 601050001 := 0x0005;
2. Set PA3 to the PWM pulse control factor (duty cycle) of 100 %.
R 601050002 := 1000;
3. Activate the high-side output of PA4.
R 601060001 := 0x0009;
4. Set PA4 to the desired PWM pulse control factor (duty cycle), e.g. 50 %.
R 601060002 := 500;
ð
The H-bridge in clockwise rotation is configured with a 50 % pulse control fac-
tor (duty cycle).
Counterclockwise
rotation 1. Activate the low-side output of PA4.
R 601060001 := 0x0005;
2. Set PA4 to the PWM pulse control factor (duty cycle) of 100 %.
R 601060002 = 1000
3. Activate the high-side output of PA3.
R 601050001 := 0x0009;
4. Set PA3 to the desired PWM pulse control factor (duty cycle), e.g. 40 %.
R 601050002 := 400;
ð
The H-bridge in counterclockwise rotation is configured with a 40 % pulse
control factor (duty cycle).
7.8 Runtime registers
The JVM-104-O09 has several registers which are incremented by the operating
system at regular intervals. These registers can be used to easily carry out time
measurements in the application program.
Registers - Over-
view The device is equipped with the following runtime registers:
Register Description
R 201000 Application time base in milliseconds
R 201001 Application time base in seconds
R 201002 Application time base in R 201003 * 10 ms
R 201003 Application time base units for R 201002
R 201004 System time base in milliseconds
R 201005 System time base in microseconds
Tab. 50: Overview of runtime registers