Drives
Architecture Class AC Drives
PowerFlex® 755 AC Drive
Designed for ease of use, integration, application flexibility, and performance.
The PowerFlex 755 AC drive is aimed to maximize your investment and help improve productivity. Ideal for applications that require safety, high motor control performance, and application flexibility, the PowerFlex 755 is a highly functional and cost effective solution. The first drive to be released from the Allen-Bradley® PowerFlex 750-Series, the PowerFlex 755 AC drive provides greater functionality across your manufacturing systems from:
- 7.5…250 kW 400V AC (540V DC input)
- 10...350 Hp 480V AC (650V DC input)
Engineering 2010 Award
The PowerFlex 755 AC drive offers more selection for control and supporting hardware options than any other drive in its class including:
- DeviceLogix™ embedded control technology that can control outputs and manage status information onboard the drive
- Standard embedded Ethernet feature for communication to easily configure, control and collect drive data over EtherNet/IP networks
- Predictive diagnostics allow the PowerFlex 755 to keep track of information that affects the life of its cooling fans and relay outputs. In addition to this, the drive can be programmed to monitor the run time hours for machine bearings or motor bearings, giving you the ability to configure the drive for advanced notification configured to help prevent unplanned downtime
- Basic and Enhanced Safety options are embedded into the drive to help protect personnel and equipment, conserve space in panels, and minimize downtime
- Slot-based architecture allows you to build the drive to suit your application needs. The five option slots are capable of accepting a combination of options for control, communications, I/O, feedback, safety and auxiliary control power.
Features
- Integration
- Standard Ethernet communications capabilities enable 16 Data Links and supports seamless integration into the Logix environment and EtherNet/IP networks
- Multiple communication options provide a variety of network choices and optimized integration with system controllers
- Reduce development time and costs with Premier Integration. Configure the PowerFlex 755 drive with RSLogix 5000, DriveExplorer™, and DriveTools™.
- Flexibility
- The PowerFlex 755 has five (5) option slots capable of accepting a combination of options for control, communications, I/O, feedback, safety and auxiliary control power
- Scalable control hardware and options, allows customers to configure the PowerFlex 755 to meet their specific application requirements
- Selectable motor control to support multiple motor types for a variety of applications
- Multiple feedback options provide a cost effective solution for a wide range of applications
- DeviceLogix™ embedded control can process up to 90 instruction blocks and gives customers the flexibility in drive control to adapt to their specific applications requirements
- Flexible packaging options to support multiple environmental classes
- Performance
- Meet application requirements for increased control bandwidth by using performance application features that compensate for system disturbances
- Synchronized control loops to facilitate tighter motor control
- Higher Safety Integrity Levels (SILs) may be achieved using the Rockwell Automation Safe-Speed control technology to support applications requiring safe speed monitoring
- Packaging
- Open Type Cabinet Mount — IP00/IP20 & NEMA/UL Open Type
- Extra Protection Flange Mount — Front = IP00/IP20 & NEMA/UL Open Type, Back = IP66 & NEMA/UL Type 4X
- Extra Protection Wall Mount — IP54 & NEMA/UL Type 12
- NEMA 1 Kit converts Open Type to NEMA/UL Type 1
- Convergence Ready
As a global automation leader, Rockwell Automation is uniquely positioned to help you capitalize on the business benefits of convergence. We are heavily investing in convergence-ready products, services, partnerships and expertise necessary in Information, Communication, Control and Power disciplines to drive convergence quickly and effectively. The PowerFlex 755 is a great example of converging technologies to address today's market concerns. This innovative drive combines the integration of: Communications; Control; Information; Global certifications; and Safety to help users be more productive, protect their assets, and receive more valuable data to help improve their production and ultimately their bottom line.
- Control
- Drive control modes include speed, torque, and position in one product to support multiple application types
- Selectable high-performance motor control algorithms with Force Technology includes Flux vector, Permanent magnet motor, sensorless, and V/hz to support multiple motor types
- Motor Types: Permanent magnet motor, induction motor, Allen-Bradley MPL motor
- DeviceLogix control
- TorqProv for lifting applications
- AC or DC common bus configurations for stand alone or multiple drive solutions
- Multiple preset speeds with programmable control through digital inputs, communications, or DeviceLogix
- Positioning
- Integrated Position loop for position homing, indexing, electronic gearing, position and velocity profiling, and position CAMing for stand alone positioning applications
- Feedback
- Multiple feedback interfaces to choose from to support a wide range of applications includes Incremental, high resolution feedback, and linear feedback
- Multiple options to support these interfaces include Universal feedback, Encoder, and Dual Encoder options
- Automatic feedback loss switchover to encoder and encoderless in speed mode
- Communications
- Embedded Ethernet port is standard feature of the drive
- The DeviceNet option and embedded Ethernet provides the user with 16 confi gurable data links to pass data to a controller
- A communication adapter option is also available to support existing PowerFlex communication modules (20-Comm-xx)
- Interfaces supported by the communication adapter include the following: EtherNet/IP, ControlNet, DeviceNet, Remote I/O, RS485 DFI, PROFIBUS DP, Interbus, Modbus/TCP, Bluetooth, CANopen, HVAC
- Hardware
- Slot based structure for control and selectable I/O, feedback, communication, auxiliary control power, and safety options
- Pull-apart terminal blocks for easy wiring
- Allows Zero Stacking or side-by-side mounting of drives in panels
- Drive design incorporates noise and voltage suppression characteristics, reducing installation concerns for noise-sensitive environments
- Conformal coating hardware including options is this drives standard
- Control I/O
- The drive comes with one (1) programmable 24V DC or 115V AC input
- To support application requirements, additional analog and discrete I/O options are available
- Features include analog loss detection, timed outputs, and a PTC input
- Real-Time Clock
- Standard feature for time stamped events that provide real time data vs. run time data provided in MM:SS
- Locally programmable and can be set by a remote controller
- Programmable month, day, year, and local time zone
- Programming and Commissioning
- LCD Human Interface Module (HIM) features an assisted start-up utility to reduce start-up time and allows users to easily configure and tune the drive
- PC tools to assist with programming, configuration, monitoring, and troubleshooting: RSLogix 5000, DriveTools, and DriveExplorer
- Flash upgradeable to equip the designer with the ability to upgrade to the latest control features available
- Standards
- To meet the needs of customers worldwide, the PowerFlex 755 is RoHS compliant.
Safety Information
The PowerFlex 755 is available with two Safety options: 1) Safe Torque-Off option or 2) Speed Monitor Safety option. The Safe Torque-Off option is the entry level safety option certified at PLd/SIL3 that requires the use of an external safety relay to meet EN954-1, Category 3 which prevents drive restarts after the safety circuit is tripped. The Speed Monitor Safety option combines the Safe Torque-Off capability and embedded Safety relay with the Rockwell Automation Safe-Speed Control core technology in one hardware option that is embedded in the drive. This option helps save space, reduces system wiring and complexity by allowing input devices to be connected directly to the PowerFlex 755, and is certified PLe/SIL3.
With the Speed Monitor Safety option you'll gain the added productivity that results from advanced safety control and also help reduce your overall system cost while improving flexibility. With the speed monitoring safe functionality you can reduce and monitor the speed of your application to a point that helps allow an operator to safely inspect and perform some process maintenance work without stopping the machine completely. The safety options available with the PowerFlex 755 can help provide reduced downtime paired with an increase in productivity for your customers.
The embedded Speed Monitor Safety option provides the following functionality:
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