COMMAND INPUTS
DIGITAL POSITION
Digital position commands can be in three formats: Pulse & Direction, Count-Up/Count-Down (CU/CD), and quad A/B encoder.
The active edge of the waveforms is programmable and the ratio of input pulses to motor microsteps is programmable, too.
The Invert Command selection will reverse the direction of motion commanded by the inputs without changing the wiring.
PULSE & DIRECTION
Controller
Pulse
Direction
CME2 -> Basic Setup -> Operating Mode Options
DIGITAL VELOCITY
Digital velocity commands are PWM signals in two formats: PWM 50% is a single signal that commands 0 at 50% duty cycle, with in-
creasing or decreasing duty cycle to command positive or negative values. PWM & Direction format uses a PWM signal that goes from
0% to 100% to command magnitude while a 0/1 at the Dir input commands direction.
PWM 50%
Controller
Duty = 50% ±50%
<no connection>
CME2 -> PWM Command block
DIGITAL COMMAND FAIL-SAFE
In the position and velocity modes above, the 0% and 100% conditions can be programmed to command zero output. This is to protect
against conditions that can occur with broken or disconnected cables which might produce uncontrolled motion.
Copley Controls, 20 Dan Road, Canton, MA 02021, USA
Tech Support: E-mail: sales@copleycontrols.com, Internet: http://www.copleycontrols.com
Stepnet
CU/CD
Module
CU (Count-Up)
[IN7]
Pulse
P2/21
[IN8]
Direction
P2/24
CD (Count-Down)
Sgnd
P2/16,
33,34
Copley
[IN7]
PWM 50%
P2/21
[IN8]
No Function
P2/24
Sgnd
P2/16,
33,34
R52
Plus
Controller
Module
[IN7]
Count-Up
P2/21
[IN8]
No Function
P2/24
Sgnd
P2/16,
33,34
CME2 -> Basic Setup -> Operating Mode Options
PWM & DIRECTION
Controller
Duty = 0~100
CME2 -> PWM Command block
Tel: 781-828-8090
RUGGEDIZED DIGITAL
STEPPER DRIVE MODULE
QUAD A/B ENCODER
Master Encoder
Module
Encoder ph. B
[IN7] Encoder B
P2/21
[IN8]
P2/24
Encoder ph. A
Sgnd
P2/16,
33,34
Copley
[IN7]
PWM 0~100%
P2/21
[IN8]
Direction
P2/24
Sgnd
P2/16,
33,34
Fax: 781-828-6547
Page 5 of 24
RoHS
Encoder A
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