Step 2. Install Jumpers On The Dmc-1600 - Galil Motion Control DMC-1600 Series User Manual

Further instruction for sinusoidal commutation connections are discussed in Step 6.
Stepper Motor Operation:
To configure the DMC-1600 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-1600". Further
instructions for stepper motor connections are discussed in Step 8c.

Step 2. Install Jumpers on the DMC-1600

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 power supply, the
internal +5V supply from the PC may be used to power the optoisolators. This is done by
installing the jumpers on JP3. LSCOM to VCC will power the limit switch optoisolators, and
INCOM to VCC will power the general input optoisolators.
Note: Using the PC's internal +5V supply to power the optoisolators will effectively bypass the
optoisolation and fail to provide any isolation for the inputs and limit switches.
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 are
located directly beside the GL-1800 IC's on the main board (see the diagram for the DMC-1600).
The individual jumpers are labeled SMX, SMY, SMZ and SMW for axes 1 through 4.
(Optional) Motor Off Jumper
The state of the motor upon power up may be selected with the placement of a hardware jumper
on the controller. With a jumper installed at the OPT location (next to the stepper motor
jumpers), the controller will be powered up in the 'motor off' state. The SH command will then
need to be issued in order for the motor(s) to be enabled. With no jumper installed, the controller
will immediately enable the motor(s) upon power up.
10 • Chapter 2 Getting Started
DMC-1600