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DMD870 Digital Stepper Drive
10. SEQUENCE CHART OF CONTROL SIGNALS
In order to avoid some fault operations and deviations, PUL, DIR and ENA should abide by
some rules, shown as following diagram:
Remark:
a)
t1: ENA must be ahead of DIR by at least 5μs. Usually, ENA+ and ENA- are NC (not
connected). See "Connector P1 Configurations" for more information.
b)
t2: DIR must be ahead of PUL active edge by 5μs to ensure correct direction;
c)
t3: Pulse width not less than 2.5μs;
d)
t4: Low level width not less than 2.5μs.
Motion Control Products Ltd.
User's Manual
Figure 9: Sequence chart of control signals
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