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#L010128
June 2002
Functions
Soft Limit Switches:
These switches cause the pulse generator to ramp down to the base speed before
encountering a hard limit switch.
Hard Limit Switches:
When a hard limit switch is encountered, the pulses will stop. Hard limits are in-
tended as an emergency stop for your system.
Profile Inputs:
These inputs are used to select the specified speed profile. These inputs are used in
conjuction with the Run input. If no profile inputs are selected then profile 1 will be used. Only 1 input
should be activated at a time.
Run:
Triggering this input will cause the pulse generator to start. The pulse generator will use the given
speed profile and start at base speed and ramp up to max speed. The motor will run at max speed until
a soft limit, hard limit, or the stop run is released. If the pulse generator is running at max speed when the
stop/run input is released then it will either stop hard or ramp down to base and stop depending on the
setting of the ramp down profile.
Speed Profiles:
The pulse generator will accept up to four different speed profiles. Each profile has it
own programmable Accel/Decel, Base speed, and Max speed. Theses values are stored in EEProm for
standalone use and must be programmed before the pulse generator can run.
Max Speed:
The max speed is the top speed the user wants the pulses to run at. This speed must always
be equal or greater than the base speed. It is entered directly as the number of steps/second. The different
max profiles are stored in EEprom for standalone use. (Range: 77 to 15000)
Acceleration/Deceleration:
The acceleration and deceleration are by default the same value. This function
controls the time that the motor will take to move from base speed to max speed. The higher the value, the
slower the motor will accelerate. The same principal applies for the deceleration which is controlling the
time it takes to go from maximum speed to base speed. The higher the value, the slower the pulses will
decelerate.The different accel/decel profiles are stored in EEprom for standalone use. (Range: 1 to 255)
Base Speed:
The base speed is the speed at which motion starts and stops. It is entered directly as the
number of steps per second. This speed must always be less than the max speed. The different base
profiles are stored in EEprom for standalone use. (Range: 77 to 3500)
Ramp Down Option:
When this option is off the pulse generator will stop hard when the Run input is
released. If this option is on, then the pulse generator will ramp down to base speed and stop when the
Run input is released.
Direction Input:
If this input is open then the unit will be running in the clockwise direction. If this input
is active then the unit will be running in the counterclockwise direction. This pin can be overridden by the
programmable software direction. It will activate the direction output when the pin is changed.
Busy Output:
This output will be pulled low when the pulse generator is operating. It is an open drain
output so when the pulse generator is not running the pin is open.
July 2018
