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| 型号： | AA2920A |
| 英文描述： | Controller Miscellaneous - Datasheet Reference |
| 中文描述： | 控制器杂项-数据表参考 |
| 文件页数： | 6/8页 |
| 文件大小： | 297K |
| 代理商： | AA2920A |
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CLOCK INPUT SELECTION
There are three three clocking methods for the and AA2920A. The C/P input is
used to select CLOCK inputs or PHASE inputs. The IP input is used to select
positive or negative going inputs. See Table 1.
INPUT CLOCK SELECTION
C/P
IP
+ GOING CLOCK INPUTS
1
0
- GOING CLOCK INPUTS
1
1
POSITIVE TRUE PHASE INPUTS
0
0
NEGATIVE TRUE PHASE INPUTS
TABLE 1: Clock Input Selection.
0
1
CLOCK and DIRECTION: Pulses applied to the CLOCK input will cause the motor
to step in the clockwise direction if the DIRECTION input is logic "1". Pulses
applied to the CLOCK input will cause the motor to step in the counterclockwise
direction if the DIRECTION input is logic "0". Figure 7 shows Clock and Direction
signals which will make 5 steps in the clockwise direction and 5 steps in the
counterclockwise direction.
CLOCK and CCW: Pulses applied to the CLOCK input cause the motor to step in
the clockwise direction. Pulses applied to the CCW input cause the motor to step
in the counterclockwise direction. Pulses should NOT be applied to both of these
inputs at the same time. The input which is not being used should be held low when
using positive going clock inputs, or held high when using negative going clock
inputs. Figure 7 shows Clock and Direction signals which will make 5 steps in the
clockwise direction and 5 steps in the counterclockwise direction.
PHASE INPUTS: Half-step or Full-step sequence phase inputs may be used to
synchronize multiple axes. Only the phase input sequences shown in Figure 8 may
be used. The phase input sequences in Figure 8 produce clockwise motor
movement. The phases may be reversed to obtain counterclockwise motor
movement. Positive or Negative true phase inputs may be used.
Figure 8: Phase Input Sequence
Figure 7: The CLOCK and DIRECTION signals are
equivalent to the CW and CCW signals
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