Selecting Active Pulse Edge And Control Signal Mode; Connector P2 Configurations - Motion DMD870 User Manual

DMD870 Digital Stepper Drive
DIR signal: In single-pulse mode, this signal has low/high voltage levels,
representing two directions of motor rotation; in double-pulse mode (software
configurable), this signal is counter-clock (CCW) pulse, active both at high level
and low level (software configurable). For reliable motion response, DIR signal
DIR+ / DIR- should be ahead of PUL signal by at least 5μs. 4-5V when DIR-HIGH, 0-0.5V when
DIR-LOW.
Please note that rotation direction is also related to motor-Drive wiring match.
Exchanging the connection of two wires for a coil to the Drive will reverse motion
direction.
Enable signal: This signal is used for enabling/disabling the drive. High level for
enabling drive (NPN control signal, PNP and Differential control signals are on the
ENA+ / ENA-
contrary, namely Low level for enabling.) and low level for disabling drive. Usually
left UNCONNECTED (ENABLED).

Selecting Active Pulse Edge and Control Signal Mode

DMD870 stepper drive supports PUL/DIR and CW/CCW modes and pulse actives at rising or
falling edge. See more information about these settings in Section 13. Default setting is
PUL/DIR mode and rising edge active (NPN, and PNP control signal is on the contrary).

Connector P2 Configurations

Pin Function
+Vdc
GND
A+, A-
B+, B-
Motion Control Products Ltd.
User's Manual
Power supply, 24~72 VDC, Including voltage fluctuation and EMF voltage.
Power Ground.
Motor Phase A
Motor Phase B
P a g e
Details
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