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3.1 Connector P1 Interface
3.1.1 Pin Assignments of P1
Pin Name
I/O
Pulse signal:
PUL+
I
(1) In single pulse (pulse & direction) control mode, this input represents pulse signal.
A pulse signal is active at the rising or falling voltage edge (set by DIP switch SW8).
(2) In double-pulse (CW/CCW) control mode (set by DIP switch SW7), this signal input
represents clockwise (CW) pulse, and is active at both high voltage level and low
PUL-
I
voltage level.
(3) 4.5-5V for voltage HIGH, 0-0.5V for voltage LOW (same for DIR signals).
(4) Pulse width should be set to 2.5μs or longer.
Direction signal:
DIR+
I
(1) . In single pulse (step & direction) control mode, this signal's low and high voltage
levels represent the two directions of motor rotation (e.g. clockwise and
counterclockwise).
(2) In double-pulse (CW & CCW) control mode, this signal represents counterclockwise
DIR-
I
(CCW) rotation. It is active at both voltage high level and low level.
(3) Minimal DIR signal setup time should be at least 5μs.
(4) You can reverse the default rotation direction by toggling the SW5 DIP switch.
Enable signal: This signal is used for enabling/disabling the drive. High voltage level of
ENA+
I
4.5-24VDC (NPN control signal) for enabling the drive and low voltage level of
0-0.5VDC for disabling the drive. PNP and Differential control signals are on the
ENA-
I
contrary, namely Low level for enabling. By default this signal is left UNCONNECTED
& ENABLED.
ALM+
O
Configurable Digital Output Signal: A configurable OC output signal. It takes a sinking
or sourcing 20mA current at 5-24V. It can to be configured as one of the 3 types,
ALM-
O
ALARM (default), IN POSITION, or BRAKE CONTROL through PC software.
!
Notes: (1) shielding control signal wires is suggested;
Notice
(2) To avoid interference, don't tie PUL/DIR control signal and motor wires together;
3.1.2 Control Signal Wiring(P1)
The CL57T can accept differential and single-ended inputs (including open-collector and PNP output). The
CL57T has 3 optically isolated logic inputs which are located on connector P1 to accept line drive control
signals. These inputs are isolated to minimize or eliminate electrical noises coupled with the drive control
signals. Recommend using line drive control signals to increase noise immunity for the drive in interference
environments. In the following figures, connections to open-collector and PNP signals are illustrated.
CL57T(V3.0) Closed-loop Stepper Driver
Details
3
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