Allen-Bradley PowerFlex 755 User Manual

306 Rockwell Automation Publication MOTION-UM003K-EN-P - January 2019
Appendix B Out of Box Configuration for PowerFlex Drives
Choose a Profile
Consider cycle time and smoothness when you choose a profile.
If You Want Choose This Profile Consideration
• Fastest acceleration and deceleration
times
• More flexibility in programming
subsequent motion
Trapezoida l Je rk doesn’t limit the acceleration and
deceleration time:
• The Acceleration and Deceleration rates
control the maximum change in Velocity.
• Your equipment and load get more stress
than with an S-curve profile.
• Jerk is considered infinite and is shown as a
vertical line.
Smoother acceleration and deceleration
that reduces the stress on the equipment
and load
S-curve Jerk limits the acceleration and deceleration
time:
• It takes longer to accelerate and decelerate
than a trapezoidal profile.
• If the instruction uses an S-curve profile,
the controller calculates acceleration,
deceleration, and jerk when you start the
instruction.
• The controller calculates triangular
acceleration and deceleration profiles.
Velocity
Accel
Jerk
Time
Time
Time
VelocityAccel
Jerk
Time
Time
Time

Allen-Bradley PowerFlex 755 Specifications

General

Category	AC Drive
Amperage	2.2…1470 A
Output Voltage	0 to Input Voltage
Output Current	2.2…1470 A
Enclosure	IP20, IP30, IP54
Communications	EtherNet/IP, ControlNet, DeviceNet
I/O	Digital, Analog, Encoder, Relay
Safety	Safe Speed Monitor
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overload, Short Circuit, Ground Fault, Overtemperature
Operating Temperature	-10°C to 50°C (14°F to 122°F)
Storage Temperature	-40°C to 70°C (-40°F to 158°F)
Humidity	5…95% noncondensing
Altitude	Up to 1000m (3300ft) without derating
Voltage	200-240V AC, 380-480V AC, 500-600V AC, 690V AC
Input Voltage	200-240V AC, 380-480V AC, 500-600V AC, 690V AC
Control Method	Sensorless Vector