Galil Motion Control DMC-42 0 Series, User Manual

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General I/O
The DMC-42x0 provides interface circuitry for 8 bi-directional, optoisolated inputs, 8 high power optoisolated
outputs and 8 analog inputs with 12-Bit ADC (16-Bit optional). The DMC-42x0 also has an additional 32 I/O (3.3V
logic) and unused auxiliary encoder inputs may also be used as additional inputs (2 inputs / each axis). The general
inputs as well as the index pulse can also be used as high speed latches for each axis. A high speed encoder
compare output is also provided.
4280
The DMC-4250 through DMC-4280 controller provides an additional 8 optoisolated inputs and 8 high
power optoisolated outputs.
System Elements
As shown in Figure 1.3, the DMC-42x0 is part of a motion control system which includes amplifiers, motors and
encoders. These elements are described below.
Figure 1.3: Elements of Servo systems
Motor
A motor converts current into torque which produces motion. Each axis of motion requires a motor sized properly
to move the load at the required speed and acceleration. (Galil’s MotorSizer Web tool can help you with motor
sizing:
www.galilmc.com/support/motorsizer )
The motor may be a step or servo motor and can be brush-type or brushless, rotary or linear. For step motors, the
controller can be configured to control full-step, half-step, or microstep drives. An encoder is not required when
step motors are used.
Other motors and devices such as Ultrasonic Ceramic motors and voice coils can be controlled with the DMC-42x0.
Chapter 1 Overview ▫ 6 DMC-42x0 User Manual
Computer DMC-42x0 Controller
Amplifier (Driver)
Power Supply
Encoder Motor