Full Digital Stepper Drive DM2282T
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3
3. Pin Assignment and Description
The DM2282T 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
Pin Function
Details
DIR-
DIRsignal: In single-pulse mode, this signal has low/high voltage levels, representing two
directions of motor rotation; in CW/CCW mode (software configurable), this signal is counter-
clock (CCW) pulse, active both at high level and low level. For reliable motion response, DIR
signal should be ahead of PUL signal by 5μs at least. 4-5V when DIR-HIGH, 0-0.5V when
DIR-LOW. Please note that rotation direction is also related to motor-driver wiring match.
Exchanging the connection of two wires for a coil to the driver will reverse motion direction.
Series connect resistors for current-limiting when +12V or +24V used. The same as DIR and ENA
signal.
DIR+
PUL-
Pulsesignal: In single pulse (pulse/direction) mode, this input represents pulse signal, each
rising or falling edge active ; in CW/CCW mode (software configurable),this input represents
clockwise(CW) pulse, active both at high level and low level. 4-5V when PUL-HIGH, 0-0.5V when
PUL-LOW. For reliable response, pulse width should be longer than 2.5μs.
PUL+
ENA-
Enablesignal: This signal is used for enabling/disabling the driver. High level (NPN control
signal, PNP and differential control signals are on the contrary, namely low level for enabling.)
for enabling the driver and low level for disabling the driver. Usually left
UNCONNECTED
(ENABLED)
.
ENA+
FAULT+
Fault Signal: OC output signal, active when one of the following protection is activated: over-voltage,
over current, low voltage, phase error and over-temperature. This port can sink or source 20mA
current at 24V. In default, the resistance between FAULT+ and FAULT- is high impedance in normal
operation and become low when DM2282T goes into error.
FAULT-
Connector P2 Configurations
Pin Function
Details
PE
Recommend connect this port to the ground for better safety.
L
Power supply inputs. If AC input, recommend use isolation transformers with theoretical output
voltage of 180~240VAC.
N
A+
Motor Phase A
A-
B+
Motor Phase B
B-
