￿ ￿        

NXL HVAC Basic speed control – Quick setup

95(96)

12.NXL HVAC BASIC SPEED CONTROL – QUICK SETUP

This chapter provides basic setup instructions for the user of NXL HVAC inverters, when using Basic Speed Control in HVAC applications.

What you need to know

Motor nameplate data

￿Nominal current

￿ Nominal speed

Motor

Pump

 

 

Speed signal specification

 

or

￿ Signal type (V, mA)

 

 

 

￿ Range (0-10, 2-10, 0-20, 4-20)

 

Fan

 

Speed Signal

 

 

V signal to AI1

 

 

mA signal to AI2

 

 

Variable Frequency Drive

Control System

Setup

1Run the Start-up Wizard

Note: Running the Start Up Wizard resets all parameters to their default values.

Hold STOP button down for 5 seconds

Select application type FAN or PUMP and confirm with ENTER

Select motor nominal speed and confirm with ENTER

Select motor nominal current and confirm with ENTER

For speed signal 0 – 10 V use AI1 (Analogue Input 1)

All settings DONE

2 Control Signal Settings for Speed Signals other than 0 – 10 V

For other selections full parameter view is needed:

P2.1.14

Parameter Conceal

Set to 0 (not in use)

For speed signal 2 – 10 V use Analogue Input 1

P2.2.6

AI1 Signal Range

Set to 4 (2 – 10 V)

For speed signal 4 – 20 mA use Analogue Input 2

P2.1.15.14

I/O Reference

Set to 1 (AI2)

For speed signal 0 – 20 mA use Analogue Input 2

P2.1.15.14

I/O Reference

Set to 1

(AI2)

P2.2.12

AI2 Signal Range

Set to 1

(0 – 20 mA)

Manual Test

1Hold LEFT down for 3-5 seconds

Control Place automatically switches to Keypad

2Use normal keypad buttons for speed control

UP and DOWN to adjust the speed

START and STOP for control

3 Hold LEFT down for 3 seconds to return to remote control (I/O or Fieldbus)

Load

Pressure Sensor

12

Page 95
Image 95
Honeywell user manual NXL Hvac Basic Speed Control Quick Setup

NXL specifications

Honeywell NXL is an advanced building management system designed to optimize the efficiency of HVAC, lighting, and security systems within commercial buildings. It incorporates cutting-edge technologies to enhance operational performance, improve energy savings, and provide a comfortable environment for occupants.

One of the standout features of Honeywell NXL is its integration capabilities. The system allows seamless connections between various subsystems, facilitating a unified approach to building management. This interoperability means that data from different systems can be aggregated, analyzed, and applied to enhance overall building performance.

The Honeywell NXL employs a user-friendly interface that empowers facility managers to easily navigate through critical information. The intuitive dashboard offers real-time analytics and visualizations, providing insights into energy consumption, system performance, and occupant comfort. Users can quickly identify inefficiencies and make informed decisions to improve operational effectiveness.

In terms of technologies, Honeywell NXL utilizes IoT connectivity, which enables devices and systems within the building to communicate with one another. This connectivity allows for remote monitoring and control, which is essential for effective facility management. By leveraging IoT technology, facility managers can receive alerts, conduct diagnostics, and perform maintenance proactively, reducing equipment downtime and avoiding costly repairs.

Another significant characteristic of the Honeywell NXL is its robust data analysis capabilities. The system collects vast amounts of data from sensors and connected devices, which is then processed to identify patterns and trends. This analytical approach not only aids in energy management but also enhances occupant comfort by adjusting parameters in real-time based on occupancy and environmental conditions.

Energy management is a critical issue for modern buildings, and Honeywell NXL addresses this with advanced optimization strategies. The system can implement demand response capabilities, adjusting energy usage based on peak periods or grid demands, ultimately saving costs and reducing environmental impact.

Moreover, Honeywell NXL places a strong emphasis on security features. Its design includes integrated surveillance and access control systems, ensuring the safety of occupants while facilitating efficient access management.

In summary, Honeywell NXL is a comprehensive building management solution that combines user-friendly design, IoT connectivity, advanced data analytics, energy optimization, and enhanced security features. Its ability to integrate various building systems makes it an essential tool for contemporary facility management, promoting efficiency and sustainability in building operations.