Instruction

Interpretation

#A

Label

AC 20000,,20000

Specify A,C acceleration of 20000 cts / sec

DC 20000,,20000

Specify A,C deceleration of 20000 cts / sec

JG 50000,,-25000

Specify jog speed and direction for A and C axis

BG A

Begin A motion

AS A

Wait until A is at speed

BG C

Begin C motion

EN

 

Joystick Jogging

The jog speed can also be changed using an analog input such as a joystick. Assume that for a 10 Volt input the speed must be 50000 counts/sec.

Instruction

Interpretation

#JOY

Label

JG0

Set in Jog Mode

BGA

Begin motion

#B

Label for loop

V1 =@AN[1]

Read analog input

VEL=V1*50000/10

Compute speed

JG VEL

Change JG speed

JP #B

Loop

Linear Interpolation Mode (Local Mode)

The DMC-3425 provides a linear interpolation mode for 2 axes. In linear interpolation mode, motion between the axes is coordinated to maintain the prescribed vector speed, acceleration, and deceleration along the specified path. The motion path is described in terms of incremental distances for each axis. An unlimited number of incremental segments may be given in a continuous move sequence, making the linear interpolation mode ideal for following a piece-wise linear path. There is no limit to the total move length.

The LM command selects the Linear Interpolation mode and axes for interpolation. Since the DMC3425 is a 2-axis controller, the LM command would specify LM AB.

When using the linear interpolation mode, the LM command only needs to be specified once unless the axes for linear interpolation change.

Specifying Linear Segments

The command LI x,y or LI a,b specifies the incremental move distance for each axis. This means motion is prescribed with respect to the current axis position. Up to 511 incremental move segments may be given prior to the Begin Sequence (BGS) command. Once motion has begun, additional LI segments may be sent to the controller.

The clear sequence (CS) command can be used to remove LI segments stored in the buffer prior to the start of the motion. To stop the motion, use the instructions STS or AB. The command, ST, causes a decelerated stop. The command, AB, causes an instantaneous stop and aborts the program, and the command AB1 aborts the motion only.

DMC-3425

Chapter 6 Programming Motion• 73

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Galil DMC-3425 user manual Linear Interpolation Mode Local Mode, Specifying Linear Segments, Joystick Jogging
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DMC-3425 specifications

The Galil DMC-3425 is a sophisticated motion controller known for its versatility and high performance in various industrial applications. Designed primarily for multi-axis control, it is well-suited for robotics, CNC machinery, and automated manufacturing systems.

One of the standout features of the DMC-3425 is its ability to control up to 32 axes simultaneously, providing unparalleled flexibility for complex motion tasks. This capability is enhanced by its advanced motion algorithms that ensure smooth and precise movements, essential for high-quality manufacturing and assembly processes. The controller supports a variety of motor types, including servo, stepper, and brushless motors, making it compatible with a wide range of existing equipment.

In terms of connectivity, the DMC-3425 offers an extensive selection of communication options. It supports Ethernet, RS-232, and RS-485 interfaces, allowing for seamless integration with various industrial networks, including EtherCAT and CANopen. This connectivity is vital for real-time data exchange and remote monitoring, enhancing overall system efficiency.

The controller is powered by Galil's innovative software architecture, which includes the DMC programming language. This user-friendly language enables engineers to create complex motion profiles easily, with support for trajectory generation, coordinate transformations, and PID control. The DMC-3425 also features built-in commands for motion profiling, including linear and circular interpolation, allowing for sophisticated path planning.

Moreover, the DMC-3425 comes equipped with an integrated programming environment that facilitates rapid application development. Users can simulate motion profiles before implementation, reducing downtime and minimizing errors. This environment is designed for quick learning, making it accessible even for those new to motion control.

Additionally, the Galil DMC-3425 features a robust safety architecture. It includes over-temperature detection, emergency stop inputs, and configurable limits for position and speed, ensuring safe operation in various environments.

Overall, the Galil DMC-3425 is a powerful and flexible motion controller that combines advanced technologies with user-friendly design. Its ability to handle multiple axes, extensive connectivity options, and comprehensive programming environment make it a top choice for manufacturers seeking to enhance automation and improve productivity in their operations.
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