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INPUT COMMAND/INTERFACE
CODING:
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|
| PIN 1,
2 |
Positive
Common (V = 4.5 to 5.5 VDC at 30 mA max.) |
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|
| PIN 3,
4 |
Polarity
Bit (Low = CW, High = CCW rotation) |
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| PIN 5,
6 |
Speed
Control MSB |
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| PIN 7,
8 |
Speed
Control (Bit 5) |
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| PIN 9,
10 |
Speed
Control (Bit 4) |
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|
| PIN 11,
12 |
Speed
Control (Bit 3) |
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|
| PIN 13,
14 |
Speed
Control (Bit 2) |
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| PIN 15,
16 |
Speed
Control (Bit 1) |
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| PIN 17,
18 |
Speed
Control (Bit Ø) |
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|
| PIN 19,
20 |
Input
ground |
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FULL
SPEED = All bits low (CW or CCW as desired)
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|
ZERO SPEED = Bits 8 through Ø high |
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| Example: |
CW
rotation, full speed
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
CCW
rotation, full speed
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
0
|
CW
rotation, 50% speed
|
0
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
CCW
rotation, 50% speed
|
1
|
1
|
0
|
0
|
0
|
0
|
0
|
0
|
OFF
(zero speed)
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
OFF
(zero speed)
|
0
|
1
|
1
|
1
|
1
|
1
|
1
|
1
|
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