Kinetix 300 Selection Guide
Product Overview
Kinetix 300 EtherNet/IP indexing servo drives from Allen-Bradley give end-users and machine designers the flexibility to standardize one communication network for simpler setup, configuration, and commissioning. All control solutions (programmable automation controllers, I/O and motion, and HMI) could be connected through a common EtherNet/IP network using the new servo drive.
One-network solutions are becoming more popular among machine builders and end users. The Kinetix 300 servo drives can do away with the requirement for a specialized motion network while preserving high-speed connection and great reliability by using EtherNet/IP technology.
A maximum of thirty-two (32) indices and five (5) indexing types can be supported by these drives. It works well for irregular vertical and horizontal form-fill-seal machines, case packers and sleeves, simple and safe erectors, and indexing tables.
Rockwell Automation provides an alternative for machines that require the power of the Integrated Architecture system in a cost-effective, low axis-count motion solution by combining the Allen-Bradley TL-Series, Allen-Bradley MP-Series motors, CompactLogix L32 controllers, and Allen-Bradley CompactLogix L23 products with Kinetix 300 servo drives. These drives may give a component machine-level solution in a cost-effective package when used in conjunction with an Allen-Bradley MicroLogix processor.
The Kinetix 300 series also has safe torque-off capabilities, which boosts output and aids in worker safety. With the safe-off feature, actions like clearing jams, cleaning, setting up the machine, and other routine maintenance that previously required shutting the device down may now be completed without the need to. It is safe to deactivate the drive output, which reduces machine downtime and speeds up machine startup. Additionally, the lack of necessary parts, such as input contactors, lowers the overall system costs, frees up panel space, and makes machine design simpler.
The Kinetix 300 product series is offered in small sizes and provides the voltage and power ranges needed to satisfy a variety of worldwide machine needs, including those for manufacturing, alternative energy, packaging, and assembly applications.
Benefits of Using Kinetix 300 Drives
Utilizing a single EtherNet/IP network solution across your whole system has several advantages. Simplicity, adaptability, and excellent performance are just a few benefits of switching to Ethernet/IP. And it is no longer simply for certain uses. With the widespread acceptance and use of Ethernet/IP communications, there is a rising tendency toward both equipment manufacturers and end users to standardize this one enterprise-wide network.
The lack of a specialized motion network makes it simple to configure, start, and commission servo drives, motors, and actuators on your machine. Additionally, while retaining a dependable, high-speed connection, it allows the integration of a comprehensive control system via Ethernet/IP, including HMI, Programmable Automation Controllers (PAC), I/O, and motion.
Kinetix 300 products have incorporated safe torque-off capabilities to comply with insurance regulations, aid safeguard workers, and boost production by increasing machine availability. Now that various tasks that previously needed power-down circumstances may be carried out without turning off the whole system, uptime has increased.
Along with a configurable control architecture, the single-axis Kinetix 300 servo drives offer the voltage and power ranges needed to satisfy a variety of international machine needs.
Installation Consideration
Requirements Related to the Mounting of the System
To meet CE and UL criteria, the whole system of Kinetix 300 devices should be contained in an enclosure. It delivers safety as described in standard (IEC 529) EN 60529 to IP4X so that it cannot be accessed by unskilled personnel. A NEMA 4X enclosure goes above and beyond these specifications, offering IP66-rated protection. The panel being installed should be on a flat, solid, and vertical surface so that it remains safe from vibration, shock, dust, oil, corrosive elements, and more.
The size of the drive’s enclosure must stay under the specification for the highest ambient temperature. Consider the heat dissipation requirements for each driving component. Separate motor feedback cables and control wiring. Connecting the machine frame, motor housing, enclosure, machine frame, and motor housing should be ensured utilizing high-frequency (HF) bonding methodologies. It will lower electrical noise and ensure a low impedance return path for HF energy. Use connection kits or 2090 series motor feedback cables and terminate the shield of the feedback cable appropriately. Cable lengths from the drive to the motor should not exceed 65.6 feet or 20 meters.
Selection of Transformer
An isolation transformer is not required by a Kinetix 300 servo drive when there is a 3-phase input power. However, to meet the controller’s voltage needs related to the available services, a transformer could be needed.
Selection of Fuse or Circuit Breaker
Kinetix 300 drives feature built-in short-circuit current protection for a solid-state motor. They can supply up to 100,000 amperes when protected by proper branch circuit protection. Fuses or circuit breakers have exceptional interrupt and withstand ratings.
Bulletin 140M and 140U products are other forms of safety equipment. There is a need to guarantee that the chosen components are correctly integrated and adhere to all applicable rules, including any demands for the safety of the branch circuit. Evaluation of the short-circuit available current is crucial when utilizing 140U/140M products. It should be kept less than that of 140U/140M’s short-circuit current rating.
The NEC criteria or related local codes will typically be met, and the complete drive capabilities will be provided by class L, J, R, and CC fuses chosen to match the drive rating of the input current. Utilize dual element, time-delay (slow-acting) fuses to stop nuisance tripping amid the power initialization's inrush current.
Although they provide some convenience, circuit breakers have several use restrictions. Circuit breakers are unable to tolerate a high inrush of current, like fuses. The chosen components must be carefully integrated and adhere to all applicable rules, including any need for branch circuit safety.
It is important to assess the short-circuit available current and to keep it lower than the short-circuit current rating of the circuit breaker.
Overview of Control Signal
Digital Inputs
Kinetix 300 servo drives have twelve digital inputs. These could be utilized for handshaking with some other devices, including push buttons, proximity sensors, and travel limit switches.
Through programs or Explicit Messaging, each input can be given a unique de-bounce time.
A, B, and C are the three categories into which the inputs are divided. The four inputs shared by each group are BCOM, CCOM, and ACOM, and one common input, respectively.
Digital Outputs
On the IOD connection, there are 5 digital outputs: OUT1, OUT2, OUT3, OUT4, and RDY. Open collectors/emitters are optically isolated outputs. These are completely separated from the driving circuits. The functions which are assigned to each output (OUT1, OUT2, OUT3, and OUT4) are “Ready”, “In-speed window”, “Not assigned”, “Zero speed”, “Run-time fault”, “Current limit”, and Brake. When the output power transistors are turned on and the Kinetix 300 servo drive is initiated, the fixed function of the Ready Output is activated.
Analog Reference Input
A maximum 10-volt DC analog signal can be fed into the analog reference inputs AIN1- and AIN1+ (IOD-25 and IOD-24). The analog signal is transformed into a 12-bit resolution digital value. The voltage discrepancy in AIN1- and AIN1+ represents the overall reference voltage. At least one input should be linked to a voltage source when using the device in single-ended mode, and the other should be linked to analog common (ACOM). When operating in differential mode, the driving circuit common, if present, is linked to the terminal of Analog Common, and the voltage source is linked around AIN1- and AIN1+.
Analog Output
Pin IOD-23’s analog output has a 10-bit resolution. This analog output is a single-ended signal in relation to Analog Common, or ACOM, and it can represent many types of motor data, including “Not Assigned”, “RMS Phase Current”, “RMS Peak Current”, “Phase Current U”, Motor Velocity, “Id Current”, “Iq Current”, “Phase Current W”, and “Phase Current V”.
Direction Inputs and Master Gearing/Step and Direction
The Kinetix 300 product series can connect with a master encoder. It has quadrature outputs to control position while running in the Master Gearing mode.
There is also the Step and Direction working mode. With this, any user can connect a pair of step and direction signals to control the drive’s position.
The remaining driving circuits and these inputs are optically separated from one another. Both inputs may run from any DC power source rated between 5 to 24 volts, and they don't need any extra series resistors to function normally.
With the Master Gearing and Step and Direction modes, differential signal inputs are recommended. It is possible to employ sinking or sourcing outputs while using differential signal inputs. Although they can be utilized, single-ended inputs are not advised. The Master Gearing mode, as well as the Step and Direction mode, have software-selectable functions.
The working rate and orientation of the motor can be controlled by an external pulse train signal (step). The step frequency regulates the motor’s speed, and the quantity of pulses fed to the drive controls the servo motor's position. Motion direction is controlled by the direction of an input signal.
Outputs of a Buffered Encoder
It is desirable to complete the feedback loop using an external device in many situations. For TTL differential line encoder types, this capability is available through the buffered encoder output connections (IOD-7...IOD-12). The B+, B-, A-, A+, Z+, and Z signals are sent with the help of IOD-7 through IOD-12 with no filtering if a motor having encoder feedback is being utilized. The passthrough delay time for the encoder is roughly 100 nanoseconds.
Safety Features of Kinetix 300
For utilization in applications related to protection, as well as being aligned with ISO 13849, the safe torque-off feature is a standardized option that is certified and approved.
The safe torque-off function offers a way to disengage the power-transistor control signals on requests with a low chance of failing. All the drive's output power transistors are delivered from the ON state when it is deactivated or whenever power is cut to inputs that are safety enabled. The motor then enters a state of coasting because of this. The electrical output is not mechanically isolated when the power transistor's output is disabled, which may be necessary for certain applications. The safe torque-off switches are triggered during normal drive operation. The gate control circuit is deactivated if safety-enabled inputs are not energized. Both safety channels must be utilized and monitored to fulfill ISO 13849-1 (PLd) standards. Safety-related systems may be grouped into two categories: High Demand or Continuous and Low Demand modes of operation.
- Low Demand mode: This is when a system related to safety only receives one operation request annually or no more than two times the frequency of proof tests.
- High Demand or Continuous mode: When a system related to safety is subjected to demands for operation frequently such as more than once a year or more than twice the interval between proof tests.
