Pin-Out Description For Dmc-1600 - Galil Motion Control DMC-1600 Series User Manual

Notes: X,Y,Z,W are interchangeable designations for A,B,C,D axes.
For A Description of the Connectors of the Extended I/O, see section below, "Extended I/O of the DMC-1600
Controller".

Pin-Out Description for DMC-1600

Outputs
Analog Motor Command
Amp Enable
PWM/STEP OUT
PWM/STEP OUT
Sign/Direction
Error
Output 1-Output 8
DMC-1600
+/- 10 Volt range signal for driving amplifier. In servo mode, motor command output is
updated at the controller sample rate. In the motor off mode, this output is held at the OF
command level.
Signal to disable and enable an amplifier. Amp Enable goes low on Abort and OE1.
PWM/STEP OUT is used for directly driving power bridges for DC servo motors or for
driving step motor amplifiers. For servo motors: If you are using a conventional amplifier
that accepts a +/-10 Volt analog signal, this pin is not used and should be left open. The
switching frequency is 16.7 kHz. The PWM output is available in two formats: Inverter
and Sign Magnitude. In the Inverter mode, the PWM signal is .2% duty cycle for full
negative voltage, 50% for 0 Voltage and 99.8% for full positive voltage. In the Sign
Magnitude Mode (Jumper SM), the PWM signal is 0% for 0 Voltage, 99.6% for full
voltage and the sign of the Motor Command is available at the sign output.
For step motors: The STEP OUT pin produces a series of pulses for input to a step motor
driver. The pulses may either be low or high. The pulse width is 50%. Upon Reset, the
output will be low if the SM jumper is on. If the SM jumper is not on, the output will be
tristate.
Used with PWM signal to give the sign of the motor command for servo amplifiers or
direction for step motors.
The signal goes low when the position error on any axis exceeds the value specified by the
error limit command, ER.
These 8 TTL outputs are uncommitted and may be designated by the user to toggle relays
and trigger external events. The output lines are toggled by Set Bit, SB, and Clear Bit, CB,
instructions. The OP instruction is used to define the state of all the bits of the Output port.
Appendices • 181