Allen-Bradley PowerFlex 755 User Manual

Rockwell Automation Publication MOTION-UM003K-EN-P - January 2019 321
Out of Box Configuration for PowerFlex Drives Appendix B
Troubleshoot Axis Motion
This section helps you troubleshoot some situations that could happen while
you are running an axis.
Why Does My Axis Accelerate When I Stop It?
While an axis is accelerating, you try to stop it. The axis accelerates for a short
time before it starts to decelerate.
Example
You start a Motion Axis Jog (MAJ) instruction. Before the axis gets to its target
speed, you start a Motion Axis Stop (MAS) instruction. The axis continues to
speed up and then eventually slows to a stop.
Look For
Example Situation Page
Why Does My Axis Accelerate When I Stop It? 321
Why Does My Axis Overshoot Its Target Speed? 322
Why Is There a Delay When I Stop and Then Restart a Jog? 325
Why Does The Axis Reverse Direction When Stopped and Started? 327
S-Curve profile in the
instruction that starts the
motion

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