Stepper Motor Operation:

To configure the DMC-13X8 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-13X8". Further instruction for stepper motor connections are discussed in Step 7c.

Step 2. Install Jumpers on the DMC-13X8

Address Jumpers

The DMC-13X8 resides in the 16-bit short I/O space of the VME system. The base address of the DMC-13X8 is set at FFF0. The address jumpers at JP10 are used to select the specific address for the DMC-13X8 in the VME system. Placing a jumper on an address A4 through A15 makes that location a 0.

For example, to set the controller address to FFE0, a jumper is placed on location A4.

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.

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, are located directly beside the GL-1800 IC on the main board (see the diagram for the DMC-13X8). The individual jumpers are labeled SMX, SMY, SMZ and SMW.

Hardware IRQ (Interrupt) Jumpers

The DMC-13X8 controller supports vectored hardware interrupts. The jumper locations JP9 and JP11 are used to select the IRQ line which will interrupt the bus. IRQ1 through IRQ7 are available to the user as hardware interrupts, and are set at location JP9. The second set of jumpers located at JP11 are labeled IAD4, IAD2 and IAD1. The summation of these jumpers should be set equal to the IRQ selected on JP9.

For example, suppose the VME host for a certain system requires a hardware interrupt on IRQ 5. A jumper would therefore be placed at location JP9 on the pins labeled IRQ5. In addition, IAD4 and IAD1, which add up to 5, will be jumpered at location JP11.

The vector and the conditions triggering the hardware interrupt on the DMC-13X8 are set through software using the EI or the UI command. The DMC-13X8 will provide the hardware interrupt to the

Chapter 2 Getting Started • 18

USER MANUAL

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Galil user manual Install Jumpers on the DMC-13X8