Allen-Bradley PowerFlex 755 Quick Start

Rockwell Automation Publication 750-QS001A-EN-P - March 2015 69
Reference Section
Table 44 - Acceleration and Deceleration Parameter Settings
No. Parameter Name User Setting Values Notes
535 Accel Time 1 Units:
Default:
Min/Max:
Secs
10
0.00 / 3600.00
Sets the acceleration rate for all speed changes and is
dependent on inertia and acceleration torque. Also, set
parameter 422 [Current Limit 1] to drive rating.
For more information, see Acceleration Time on page 68.
537 Decel Time 1 Units:
Default:
Min/Max:
Secs
10
0.00 / 3600.00
Sets the deceleration rate for all speed changes and is
dependent on inertia and deceleration torque.
Decel rate can affect the extent of the dynamic braking needed.
Increase the decel rate to reduce re
generative energy demand or
increase the dynamic brake capacity.
For more information, see Deceleration Time on page 68 or the
PowerFlex Dynamic Braking Resistor Calculator Application
Technique, publication PFLEX-AT001.
422 Current Limit 1 Units:
Default:
Min/Max:
Amps
Based on drive rating
and ND/HD selection
Based on drive rating
Current setting above continuous current rating of the drive is
time limited. Refer to the Recommendation in Acceleration
Time on page 68.

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