11
#L010184
April 2007
Functions
Hard Limit Switches:
When a hard limit switch is encountered, the pulses will stop. Hard limits are
intended as an emergency stop for your system.
Soft Limit Switches:
These switches cause the pulse generator to ramp down to the base speed and
continue to run as the run input is still activated, unless encountering a hard limit switch.
Run Input:
This input is used to begin the specified motion profile.
Max1/Max2:
This input is used to select which profile runs when the run input is activated. To use profile 1,
then this input needs to be inactive (open). To use profile 2, then this input needs to be active.
Motion Profiles:
The indexer will accept two different speed or motion 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 is ran.
Acceleration/Deceleration:
The acceleration and deceleration are by default the same value. This func-
tion controls the time that the motor will take to move from base speed to max speed. The higher the
value, the faster the motor will accelerate. The same principal applies for the deceleration which is control-
ling the time it takes to go from maximum speed to base speed. The higher the value, the faster the pulses
will decelerate. The different accel/decel profiles are stored in EEprom for standalone use. (Range: 100 to
9,999,999)
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: 1 to 5000)
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 differ-
ent max profiles are stored in EEprom for standalone use. (Range: 1 to 50,000)
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. This means,
that if you start the profile from the software, the unit will look at the software direction. If you start the
indexer from the inputs, then the unit will look at the direction input.
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.
Clock Output:
This output will pulse at the same frequency as the internal clock to the motor driver. It is
an open drain output and pulled low during the active pulse of the pulse generator. When the pulse generator
is not running this output is open.
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