Galil DMC-2X00 - Manual (Page 13)

Environmental Specifications
Description Unit Specification
----------- ---- -------------
Storage Temperature C -25 to +70
Operating Temperature C 0 to +70
Operating Altitude feet 10,000
Equipment Maintenance
The DMC-2000 does not require maintenance.
Overview of Motor Types
The DMC-2x00 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-2x00 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 (+/- 10 volts) to connect to a servo amplifier. This connection
is described in Chapter 2.
Brushless Servo Motor with Sinusoidal Commutation
The DMC-2x00 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 with a standard
update rate of 1 millisecond. For faster motors, please contact the factory.
To simplify the wiring, the controller provides a one-time, automatic set-up procedure. When the
controller has been properly configured, the brushless motor parameters may be saved in non-volatile
memory.
The DMC-2x00 can control BLMs equipped with Hall sensors as well as without Hall sensors. If Hall
sensors are available, once the controller has been setup, the brushless motor parameters may be saved
in non-volatile memory. In this case, the controller will automatically estimate the commutation phase
DMC-2X00 Chapter 1 Overview y 3