Connectors And Pin Assignment; Connector P1 Configurations - Motion DMD870 User Manual

Important NOTE: The drive must be mounted vertically onto a plate or a heat
sinking to maximize heat sink area as shown in the above picture. Please use
additional heat sinking or cool fan if necessary.

3. CONNECTORS AND PIN ASSIGNMENT

DMD870 stepper drive has two connectors, connector P1 for control signals connections,
and connector P2 for power and motor connections. The following tables are brief
descriptions of the two connectors. More detailed descriptions of the pins and related
issues are presented in section 4, 5, 9.

Connector P1 Configurations

Signal
Pulse signal: In single pulse (pulse/direction) mode, this input represents pulse
signal, each rising or falling active edge (software configurable); 4-5V when PUL-
HIGH, 0-0.5V when PUL-LOW. In double pulse mode (pulse/pulse), this input
PUL+ / PUL- represents clockwise (CW) pulse, active both at high level and low level (software
configurable). For reliable response, the pulse width should be longer than 2.5μs.
Series connect resistors for current-limiting when +12V or +24V is used. The same
as DIR and ENA signals.
Motion Control Products Ltd.
DMD870 Digital Stepper Drive User's Manual
Description
P a g e | 4 Tel.: (+44) 01202 599922