5Functions

5.4.2Position Control Part

For the position control bandwidth, either the value set with the #50 Position control bandwidth 1 parameter or the #48 Position control bandwidth 2 parameter is selected, according to the status of the controller interface input signal IN_FN. The selected value is displayed in the #375 Position control bandwidth monitor.

The position control part calculates the proportional control gain, integral control gain, and differential feedback gain, according to the position control bandwidth value.

The position integral limiter set by the #53 Position integral limiting value parameter is effective in suppressing integrator windup due to motor torque and thrust saturation. Decrease the value in order to suppress windup further. On the other hand, if you set the value too small, the motor torque and thrust are limited; set a value as large as possible in the range where windup does not occur.

The integral operation of the position control part can also be set either to be active (allow) or inactive (prohibit). If you clamp the motor with an external device when the motor is stopped, the integral operation should be prohibited after clamping in order to prevent overloading the controller. Refer to Chapter 6 “Controller Interface” and Chaper 7 “RS232C Interface” for details of the operation.

The position current value filter outputs the result obtained by filtering the position current value to the #384 Motor linear coordinate current value after filtering monitor. The filter bandwidth is set with the #59 Position current value filter frequency parameter. The position control part outputs a value before or after being filtered to the #321 Pulse position current value monitor, according to the setting status of the #203 Using position current value filter parameter. It also calculates the value of the #322 Pulse position deviation monitor, using the current value before or after being filtered, according to the setting status of the #203 parameter.

[Related parameters]

#50 Position control bandwidth 1 #48 Position control bandwidth 2 #53 Position integral limiting value #59 Position deviation filter frequency #203 Using position current value filter

5.4.3Feed Forward

Three types of feed forward functions are available: position feed forward, velocity feed forward, and acceleration feed forward. Feed forward function is effective for quick positioning.

The position feed forward can be set by percentage in the #54 Position feed forward percentage parameter. The position feed forward makes the position deviation at equal velocity move smaller and helps to achieve a smooth settling at acceleration/deceleration.

The velocity feed forward can be set by percentage in the #55 Velocity feed forward percentage parameter. The acceleration feed forward calculates the acceleration feed forward gain from the #155 Load inertia/load mass parameter values, which are measured and set by the auto-tuning operation or set directly by numerical values, based on the #56 Acceleration feed forward gain parameter. #56 parameter is given as a percentage.

[Related parameters]

#54 Position feed forward percentage #55 Velocity feed forward percentage #56 Acceleration feed forward percentage #155 Load inertia/load mass

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Parker Hannifin G2 manual Position Control Part, Feed Forward
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G2 specifications

Parker Hannifin G2 is a state-of-the-art platform designed to transform the way industries approach fluid and motion control. As a leader in motion and control technologies, Parker Hannifin has integrated cutting-edge features into the G2, making it a standout choice for various applications, including aerospace, industrial automation, and hydraulic systems.

One of the main features of the Parker Hannifin G2 series is its modular design. This allows users to customize the configuration according to their specific needs, facilitating enhanced versatility and efficiency. The modular approach supports different valve and actuator options, enabling seamless integration with existing systems and allowing for future expansions.

The G2 is equipped with advanced connectivity options, including Ethernet and fieldbus solutions. These technologies enable real-time data exchange and remote monitoring, ensuring optimized performance and reduced downtime. Users can leverage this connectivity to implement preventive maintenance strategies, thereby increasing the overall reliability of their operations.

Another notable characteristic of the G2 platform is its intelligent control algorithms. These algorithms allow for enhanced process automation, ensuring that systems can adapt dynamically to changing operating conditions. The result is improved energy efficiency and lower operational costs, critical factors in today’s competitive market.

Durability is a key aspect of the G2 series as well. Constructed with high-quality materials, the platform is designed to withstand harsh industrial environments, making it ideal for applications where reliability is paramount. Additionally, its compact footprint enables easy installation and integration into existing setups without requiring extensive modifications.

The user interface of the G2 is exceptionally user-friendly. With intuitive design and advanced graphical displays, operators can easily access performance data, diagnostics, and system parameters. This ease of use not only improves operational efficiency but also enhances training processes for new personnel.

In summary, Parker Hannifin G2 represents a significant advancement in fluid and motion control technology. Its modular design, advanced connectivity, intelligent control algorithms, durability, and user-friendly interface make it a compelling choice for industries seeking to enhance their operations. With these features, the G2 empowers businesses to achieve their efficiency, reliability, and performance goals.
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