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3.1.1 Potentiometer Settings
Potentiometer
Settings
The 6415 has four potentiometers which adjust the output move
profile of the motor. The acceleration rate and deceleration rate are
usually adjusted and not changed for a particular motor/load
combination. The run speed and low speed potentiometers are
adjustable during operation with the velocity ramping up or down
to the new velocity.
Adjustments for RUN SPEED, LOW SPEED, ACCEL RAMP,
and DECEL RAMP are made with 4 multi-turn potentiometers.
LOW SPEED is typically set lower than RUN SPEED to allow for
accurate stopping. It can also be used as a second RUN SPEED.
ACCEL RAMP is typically set to minimize time to reach RUN
SPEED without allowing the motor to stall. The DECEL RAMP is
linear and stable, allowing a more precise, repeatable stopping
position.
The figure below shows the typical velocity (pulse frequency)
profile in response to separate RUN/STOP and RUN/LOW
commands.
Separate command signals
6415 Installation and Hardware Reference Manual - Rev E
3 - 3
Powering
Up
RUN SPEED
DECEL
RAMP
LOW SPEED
ACCEL
RAMP
MIN SPEED
0
RUN
50 SEC MIN
m
50 SEC MIN
m
0
LOW_SPD
LOW
0
STOP
0