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5.2.8 Stepper axes outputs 0-1
| Location | X9 |
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12 |
| Mating connector: Weidmüller Omnimate BL 3.5/12 | |||
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| 12 | Shield | Shield connection | a32 | |
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| 11 | DIR1+ | Direction output 1+ | b15 | |
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| 10 | DIR1- | Direction output 1- |
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| 9 | STEP1+ | Step (pulse) output 1+ | b14 | |
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| 8 | STEP1- | Step (pulse) output 1- |
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7 | DGND | Digital ground | a3 | ||
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| 6 | Shield | Shield connection | a32 | |
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| 5 | DIR0+ | Direction output 0+ | a15 | |
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| 4 | DIR0- | Direction output 0- |
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| 3 | STEP0+ | Step (pulse) output 0+ | a14 | |
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| 2 | STEP0- | Step (pulse) output 0- |
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| 1 | DGND | Digital ground | a3 | |
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The stepper outputs on the backplane are driven by DS26LS31 line drivers, providing RS422 differential outputs. See also Figures 25 and 26.
CAUTION: The DS26LS31 drivers are static sensitive devices. Take appropriate ESD precautions when handling the backplane. When connecting the outputs to single ended inputs as shown in Figures 25 and 26, do not connect the STEPx- or DIRx- outputs to ground; leave them unconnected.
NextMove ES |
| Backplane |
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| 96 | DS26LS31 | ‘X9’ |
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| ULN2003 | pin | 2 | STEP0- |
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Step | 74AHCT244 |
| 3 | STEP0+ |
Output |
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GND |
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| 1 | DGND |
Figure 23 - Stepper output - STEP0 output shown
| MN1928 |
