Overview Of Motor Types; Standard Servo Motor With +/- 10 Volt Command Signal; Brushless Servo Motor With Sinusoidal Commutation; Stepper Motor With Step And Direction Signals - Galil Motion Control DMC-1600 Series User Manual

Overview of Motor Types

The DMC-1600 can provide the following types of motor control:
1. Standard servo motors with +/- 10 volt command signals
2. Brushless servo motors with sinusoidal commutation
3. Step motors with step and direction signals
4. Other actuators such as hydraulics - For more information, contact Galil.
The user can configure each axis for any combination of motor types, providing maximum
flexibility.

Standard Servo Motor with +/- 10 Volt Command Signal

The DMC-1600 achieves superior precision through use of a 16-bit motor command output DAC
and a sophisticated PID filter that features velocity and acceleration feedforward, an extra pole
filter, and integration limits.
The controller is configured by the factory for standard servo motor operation. In this
configuration, the controller provides an analog signal (+/- 10Volt) to connect to a servo amplifier.
This connection is described in Chapter 2.

Brushless Servo Motor with Sinusoidal Commutation

The DMC-1600 can provide sinusoidal commutation for brushless motors (BLM). In this
configuration, the controller generates two sinusoidal signals for connection with amplifiers
specifically designed for this purpose.
Note: The task of generating sinusoidal commutation may be accomplished in the brushless motor
amplifier. If the amplifier generates the sinusoidal commutation signals, only a single command
signal is required and the controller should be configured for a standard servo motor (described
above).
Sinusoidal commutation in the controller can be used with linear and rotary BLMs. However, the
motor velocity should be limited such that a magnetic cycle lasts at least 6 milliseconds*. For
faster motors, please contact the factory.
To simplify the wiring, the controller provides a one-time, automatic set-up procedure. The
parameters determined by this procedure can then be saved in non-volatile memory to be used
whenever the system is powered on.
The DMC-1600 can control BLMs equipped with or without Hall sensors. If hall sensors are
available, once the controller has been setup, the controller will automatically estimates the
commutation phase upon reset. This allows the motor to function immediately upon power up.
The Hall effect sensors also provide a method for setting the precise commutation phase. Chapter
2 describes the proper connection and procedure for using sinusoidal commutation of brushless
motors.
* 6 Milliseconds per magnetic cycle assumes a servo update of 1 msec (default rate).

Stepper Motor with Step and Direction Signals

The DMC-1600 can control stepper motors. In this mode, the controller provides two signals to
connect to the stepper motor: Step and Direction. For stepper motor operation, the controller does
not require an encoder and operates the stepper motor in an open loop fashion. Chapter 2
describes the proper connection and procedure for using stepper motors.
2 • Chapter 1 Overview
DMC-1600