standard servo axes and one axis of sinusoidal commutation, the controller will require a total of four DAC’s and the controller must be a DMC-1740 or DMC-1840.

Sinusoidal commutation is configured with the command, BA. For example, BAX sets the X axis to be sinusoidally commutated. The second DAC for the sinusoidal signal will be the highest available DAC on the controller. For example: Using a DMC-1740, the command BAX will configure the X axis to be the main sinusoidal signal and the ‘W’ axis to be the second sinusoidal signal.

The BA command also reconfigures the controller to indicate that the controller has one less axis of ‘standard’ control for each axis of sinusoidal commutation. For example, if the command BAX is given to a DMC-1740 controller, the controller will be re-configured to a DMC-1730 controller. By definition, a DMC-1730 controls 3 axes: X,Y and Z. The ‘W’ axis is no longer available since the output DAC is being used for sinusoidal commutation.

Further instruction for sinusoidal commutation connections are discussed in Step 6.

Stepper Motor Operation:

To configure the DMC-1700/1800 for stepper motor operation, the controller requires a jumper for each stepper motor and the command, MT, must be given. The installation of the stepper motor jumper is discussed in the following section entitled “Installing Jumpers on the DMC-1700/1800”. Further instruction for stepper motor connections are discussed in Step 8c.

Step 2. Install Jumpers on the DMC-1700/1800

Master Reset and Upgrade Jumpers

JP1 contains two jumpers, MRST and UPGRD. The MRST jumper is the Master Reset jumper. With MRST connected, the controller will perform a master reset upon PC power up or upon the reset input going low. Whenever the controller has a master reset, all programs, arrays, variables, and motion control parameters stored in EEPROM will be ERASED.

The UPGRD jumper enables the user to unconditionally update the controller’s firmware. This jumper is not necessary for firmware updates when the controller is operating normally, but may be necessary in cases of corrupted EEPROM. EEPROM corruption should never occur, however, it is possible if there is a power fault during a firmware update. If EEPROM corruption occurs, your controller may not operate properly. In this case, install the UPGRD Jumper and use the update firmware function on the Galil Terminal to re-load the system firmware.

Opto Isolation Jumpers

The inputs and limit switches are optoisolated. If you are not using an isolated supply, the internal

+5V supply from the PC may be used to power the optoisolators. This is done by installing jumpers on JP3 and/or JP13.

Stepper Motor Jumpers

For each axis that will be used for stepper motor operation, the corresponding stepper mode (SM) jumper must be connected. The stepper motor jumpers, labeled JP5 for axes X through W and JP4 for axes E through H, are located directly beside the GL-1800 IC’s on the main board (see the diagram for the DMC-1700/1800). The individual jumpers are labeled SMX, SMY, SMZ and SMW for axes 1 through 4 and SME, SMF, SMG and SMH for axes 5 through 8.

(Optional) DMA Jumpers

The DMA channel is only available with the DMC-1700 controller. The DMC-1700 controller allows either DMA channel 0 or 1 to be selected. The jumper location JP4 on the DMC-1740 and JP6 on the

DMC-1700/1800

Chapter 2 Getting Started • 11

Page 18 Page 20
Page 19
Image 19
Galil DMC-1800 user manual Install Jumpers on the DMC-1700/1800
Page 18 Page 20

DMC-1800, DMC-1700 specifications

The Galil DMC-1700 and DMC-1800 are advanced motion controllers widely recognized for their high performance and versatility in the automation and robotics industries. These controllers are designed to meet the demands of complex motion control applications, providing users with enhanced features and innovative technologies that optimize motion precision and efficiency.

One of the main features of the Galil DMC-1700 is its ability to handle up to 8 axes of motion control. This capability makes it suitable for a range of applications, from simple point-to-point movements to intricate trajectories in multi-axis systems. In contrast, the DMC-1800 extends this functionality, supporting up to 64 axes, making it ideal for large-scale automation environments.

Both models leverage Galil's powerful programming interface, which simplifies the development of motion control applications. The DMC-1700 and DMC-1800 controllers utilize a high-level programming language that supports advanced motion commands, including linear interpolation, circular interpolation, and complex motion profiles. This feature allows users to implement sophisticated motion sequences seamlessly.

In terms of connectivity, the Galil DMC series offers multiple communication options, including Ethernet, RS-232, and CAN bus, ensuring compatibility with various hardware and enabling easy integration into existing systems. The controllers also come equipped with digital and analog I/O ports, providing flexibility for sensor feedback and actuator control.

The advanced technology incorporated into both the DMC-1700 and DMC-1800 includes on-board PID control, which ensures precise motion control through closed-loop feedback. This results in improved stability and accuracy, particularly in high-speed applications. Additionally, the controllers offer extensive diagnostics and monitoring capabilities, allowing for real-time performance analysis and troubleshooting.

Another notable characteristic of these motion controllers is their compact design, which offers space-saving advantages while maintaining high processing power. Their robust construction and ability to operate in challenging environments make them suitable for a wide range of industrial applications, from CNC machining to assembly lines.

In conclusion, the Galil DMC-1700 and DMC-1800 motion controllers stand out due to their high-performance capabilities, advanced programming features, and flexibility in connectivity. With their ability to handle complex motion control tasks efficiently, these controllers are invaluable tools for engineers and manufacturers looking to enhance their automation processes. By integrating Galil's innovative motion control technology, industries can achieve greater precision, speed, and reliability in their operational workflows.
Top Page Image Contents