M760 Microstepping Driver Manual V1.0
Tel: +086 0755-26434369 3 Web Site: www.leadshine.com
l
It is recommended to use automatic idle-current mode, namely current automatically reduce to
60% when motor stops, so as to reduce Drive heating and motor heating;
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The Drive must be mounted vertically to maximize heat sink area as shown in the following
picture. Use forced cooling method to cool the system if necessary.
.
3. Pin Assignment and Description
The M760 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
PUL+
PUL-
Pulse signal: In single pulse (pulse/direction) mode, this input represents pulse
signal, each rising or falling edge active (set by inside jumper J1); 4-5V when
PUL-HIGH, 0-0.5V when PUL-LOW. In double pulse mode (pulse/pulse) ,
this input represents clockwise (CW) pulse
，
active at high level or low level
(set by inside jumper J1, J2). For reliable response, pulse width should be
longer than 1.5
μ
s. Series connect resistors for current-limiting when +12V or
+24V used. The same as DIR and ENA signals.
Important
NOTE
：
The driver 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.
M760 Microstepping Driver Manual V1.0
Tel: +086 0755-26434369 4 Web Site: www.leadshine.com
DIR+
DIR-
DIR signal: In single-pulse mode, this signal has low/high voltage levels,
representing two directions of motor rotation; in double-pulse mode (set by
inside jumper J3), this signal is counter-clock (CCW) pulse
，
active at high
level or low level (set by inside jumper J1, J2). For reliable motion response,
DIR signal should be ahead of PUL signal by 5
μ
s at least. 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.
ENA+
ENA-
Enable signal: This signal is used for enabling/disabling the Drive. High level
(NPN control signal, PNP and Differential control signals are on the contrary,
namely Low level for enabling.) for enabling the Drive and low level for
disabling the Drive. Usually left
UNCONNECTED (ENABLED)
.
Selecting Active Pulse Edge or Active Level and Control Signal Mode
There are three jumpers J1, J2 and J3 inside the M760 specifically for selecting active pulse edge or
effective level and control signal mode, as shown in figure 2. Default setting is PUL/DIR mode and
rising edge active (NPN, and PNP control signal is on the contrary).
(a) J1, J2, J3 open circuit (b) J1, J2 open circuit, J3 short circuit
PUL/DIR mode and Active at rising edge (NPN) PUL/DIR mode and active at falling edge (NPN)
(c) J2, J3 open circuit, J1 shirt circuit (d) J1, J2, J3short circuit
CW/CCW mode and active CW/CCW mode and active
at low level (The fixed level) at high level (The fixed level)
Figure 2: J1, J2 and J3 jumpers
Connector P2 Configurations
Pin Function
Details
+V
Power supply, 20~68 VDC, Including voltage fluctuation and EMF voltage.
GND
Power Ground.
A+, A-
Motor Phase A
B+, B-
Motor Phase B
