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Schneider Electric ACRC502 Tune the PID loop, Control Method Proportional Integral Derivative

Models: ACRC501 ACRC502 ACRC500

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Tune the PID loop

Tune the PID loop to optimize the performance of the cooling group.

NOTE: This procedure is to be performed by Schneider Electric authorized personnel only. The PID loop must be tuned after the equipment in the room is installed and running. The loop should be tuned periodically to account for changes in the room load.

1.Adjust the integral and derivative constants to zero and the proportional constant to 1.0.

2.Set the temperature setpoint value and start the cooling group.

3.When the temperature reaches a stable value, increase the proportional constant by 0.5. If the temperature does not respond to this change, adjust the setpoint.

4.Repeat step 3 until the temperature value starts to oscillate and the peak amplitude of the oscillations is constant.

5.Note the time, in minutes, between the peaks of the oscillations. This is the Ultimate Period, PU.

6.Note the value of the proportional constant. This is the Ultimate Gain, GU.

7.Compute the PID constants using the table below. Use the equations for that control method in the row to compute the values for each constant.

Control Method

Proportional

Integral

Derivative

 

 

 

 

P

0.5*GU

–

–

P + I

0.45*GU

0.54*GU/PU

–

P + I + D

0.6*GU

1.2*GU/PU

0.075*GU*PU

8. Set each constant according to these calculations.

You may need to further tune the PID loop in the following ways to account for changes in the room load:

Loop Behavior

PID Tuning Correction

 

 

Slow response to temperature changes

Increase the proportional multiplier or increase the

 

derivative multiplier.

Overcooling/undercooling after changes in the room

Increase the derivative or the proportional multiplier.

load or changes in setpoint

 

 

 

Environmental temperature never reaches the

Increase the integral multiplier.

setpoint

 

 

 

Overcooling/undercooling on constant room load

Decrease the integral multiplier.

 

 

InRow RC Operation and Maintenance Manual

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Schneider Electric ACRC502, ACRC500, ACRC501 manual Tune the PID loop, Control Method Proportional Integral Derivative
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ACRC501, ACRC502, ACRC500 specifications

Schneider Electric, a global leader in energy management and automation, has introduced its sophisticated line of edge computing solutions, namely the ACRC500, ACRC501, and ACRC502. These models are designed specifically to meet the increasing demand for efficient and reliable edge computing environments across various industries.

The ACRC500 serves as a compact and versatile solution that caters to small to medium-sized applications. It is engineered to optimize performance by utilizing advanced thermal management technologies. With a scalable architecture, the ACRC500 can easily be adapted for diverse workloads, making it ideal for facilities requiring quick deployment and efficient operation.

Meanwhile, the ACRC501 provides enhanced performance capabilities with increased processing power and memory. This model incorporates state-of-the-art technologies such as edge analytics and artificial intelligence, allowing businesses to make data-driven decisions in real time. Its robust design ensures it can withstand harsh environmental conditions, making it suitable for industrial settings. The ACRC501 also features advanced security protocols, ensuring sensitive data is safeguarded against potential cyber threats.

The ACRC502 stands out with its focus on high-density applications, offering improved data handling and processing efficiency. This model supports a wide range of connectivity options including Wi-Fi, Ethernet, and cellular networks, ensuring seamless integration into existing infrastructure. Its modular design allows for easy upgrades and scalability, making it a future-proof investment for enterprises looking to expand their edge computing capabilities.

All three models—ACRC500, ACRC501, and ACRC502—are built on Schneider Electric's EcoStruxure platform. This innovation enables real-time monitoring and analytics, facilitating proactive maintenance and reducing downtime. Furthermore, they support IoT applications, making them ideal for smart factory implementations, healthcare analytics, and energy management systems.

In addition to their high-performance features, these edge computing solutions are designed with sustainability in mind. Schneider Electric emphasizes energy efficiency and reduced carbon footprints in their development processes, aligning with global sustainability goals. The result is a suite of products that not only enhance operational efficiency but also contribute to a more sustainable future for businesses.

In conclusion, the ACRC500, ACRC501, and ACRC502 represent Schneider Electric's commitment to innovation in edge computing. With their array of features and technologies, these models are poised to meet the evolving needs of industries across the globe, driving the future of operational efficiency and sustainability.