DM860 Fully Digital Stepper Drive Manual V1.0
4
Connector P2 Configurations
Pin Function
Details
VDC
Power supply, 24 ~ 80 VDC, Including voltage fluctuation and EMF voltage.
GND
Power Ground.
A+, A-
Motor Phase A
B+, B-
Motor Phase B
4. Control Signal Connector (P1) Interface
The DM860 can accept differential and single-ended inputs (including open-collector and PNP output). The DM860
has 3 optically isolated logic inputs which are located on connector P1 to accept line driver control signals. These
inputs are isolated to minimize or eliminate electrical noises coupled onto the drive control signals. Recommend use
line driver control signals to increase noise immunity of the driver in interference environments. In the following
figures, connections to open-collector and PNP signals are illustrated.
Figure 3: Connections to open-collector Figure 4: Connection to PNP signal (common-cathode)
signal (common-anode)
5. Connecting the Motor
The DM860 can drive any 2-pahse and 4-pahse hybrid stepping motors.
Connections to 4-lead Motors
4 lead motors are the least flexible but easiest to wire. Speed and torque will depend on winding inductance. In setting
the driver output current, multiply the specified phase current by 1.4 to determine the peak output current.
Figure 5: 4-lead Motor Connections
Drive
Controller
VCC
PUL-
PUL+
ENA-
PUL
DIR
ENABLE
DIR-
DIR+
ENA+
Drive
Controller
VCC
PUL-
PUL+
ENA-
PUL
DIR
ENABLE
DIR-
DIR+
ENA+
