VFD Remote Control Design Hello All! Environmental challenges can increase the risk of arc flash incidents in electrical panels. These areas include: *Note - not to be confused with VSDs (variable speed drives) which serve a slightly different purpose. Proper grounding and bonding are essential in today’s industrial environment. Custom manufactured Variable Frequency Drive panel build-ups are available through our in-house, UL508A certified, custom manufacturing and systems integration division. For more information, you should check out Rockwell Automation’s Industry Installation Guidelines for Drives for more complete and industry-specific installation information (PDF file download). Backed by knowledgeable team, we are providing a comprehensive series of VFD Control Panel. Backed by knowledgeable team, we are providing a comprehensive series of VFD Control Panel. VFD panels are designed with a circuit breaker usually, which are connected to the input line power supply to switch the panel on/off, and provide protection when short circuit or overload occurs in the circuits and variable speed drives. This is a sure-fire way to get that 2:00 AM call. Due to the versatile nature of VFD’s, there are dozens of applications which VFD’s could be put to use. This is part four of our popular, on-going variable frequency drives (VFD) series. Oops!! The VFD panels are widely used in extruder plants, rolling Mills, tube mills, paper mills, cable industry. When looking at the actual layout of the VFD in the system, two different layouts are the most commonly used. With operator efficiency & safety built-in and no fan maintenance required, the DURA-Drive offers a low total cost of operation compared to the 'drive in a box' alternatives. Confined Space Entry and Retrieval Systems, Confined Space Entry and Retrieval Winches, Miscellaneous Electrical Labels and Signs, Faceshield Replacement Windows and Visors, Industry Installation Guidelines for Drives. Basic components to be installed in a panel. VFD Control Panels Owing to a modernized infrastructure for trouble-free processing & post-production, we are instrumental in offering VFD Control Panel . A VFD can be used to vary speed, direction and other parameters of a 3 … We accept VISA, MasterCard, Discover, American Express, or customer purchase orders. How innovative VFD enclosure design is helping to manage heat. Following the best practices we have outlined and asking yourself the right questions will help improve your drive panel design. The DURA-Drive is a premium VFD control panel, engineered with industry experience and design features that result in a high performance and long lasting, dependable power. This is essentially a motor starter panel with motor starting option is by variable frequency drive. Panel design considerations can include selection of a suitable cabinet, appropriate design and layout, energy distribution, power and control wiring and isolation, modules and devices, sub-assembly selection, bill of materials (BOM), short circuit current ratings (SCCR), and related diagrams and documentation. I have a WEG CFW10 VFD powering my mill. • Customer designed control panels • Fast turnaround on quotation requests • Competitive pricing. Panel Engineering :-• Design –CAD – Elautomation – Application Assistance Project engineering services • CAD design by Elautomation software • Design/build/test panels for complete functional testing of high volume repetitive panels Are you following documented clearance guidelines? Looking up at the bottom of a flange mount PowerFlex® 70, the red line shows the back of the cabinet. These are: Line, load and control wiring through the bottom of the drives; Contractor-like wiring with the line-side wiring at the top of the drive, load … A final piece of advice on grounding, skip those gorgeous painted back panels and go for galvanized to improve the grounding. In this particular case, there was not sufficient space above and below the drives to allow for adequate airflow over the heatsink on the back of the drives which resulted in a communication failure as the communication processor was sitting right on the heatsink. There are several different ways to ground your system but the “best practice” is Delta / Wye with grounded wye neutral. We are in Design, Manufacture, Supply, Installation, Testing and Commission Of. But if that’s not possible and the drive is going to be out on the plant floor, be aware of any potentially corrosive gases or vapors that could be present and also the temperature and humidity at that location. They kept getting heat-related failures and, even worse, they were usually at 2:00 in the morning. In order to ensure a proper installation of a VFD, there are many areas that should be under consideration. As noted above, there are many things to consider in regards to the installation of VFD control panels including applications, wiring, and commissioning, among many others. When it comes to industrial configurations, one of the most important pieces of the puzzle is an energy efficient installation of variable frequency drives (VFDs). our Various Range Includes Wind Turbine Control Panels, Compressor Control Panel, APFC Panel, DrawOut Panels, PLC Automation Panels with advances in the technology. Also known as adjustable-frequency drives (AFDs) or, Alongside this, utility companies are beginning to charge more for high energy usage, and penalties are getting increasingly more severe during these high-stress periods. First, consider the environment the panel is going to be mounted within. This guide is designed to cover the Execution Steps : Prepare a Control and Power drawing; Commissioning and Parameters Programming in VFD… In the mean time, I am planning out how assemble a remote for the VFD. Also, variable speed starters without keypads have been proven to be cost-effective and simplistic, as many drive users would prefer operators do not change parameters with the keypad which could negatively affect the system. AC drives accurately control torque, smoothly handle increased load and provide numerous custom control and configuration operating modes. All control panel cables to the VFD are foil shielded with drain and are going in metallic liquid tight conduit. Prudent control panel design limits the number of conductors traveling across a hinge. Often in the industry, need arises for controlling the speed of a 3 Phase Induction Motor. Another consideration is the wireway you use in the panel and how you route the different voltages through your cabinet. Anything less than that will absolutely present a problem for you or your customer down the road as the airflow will be restricted. Note, the minimum clearance above AND below the drive is 3 inches while the drives are touching each other on the sides, the aforementioned bookshelf design. The above is taken from the Installation Manual for Rockwell Automation PowerFlex® 750 Class VFDs. Always try to keep the most space possible between your various cables and wires within your enclosure. They are widely used in drilling, pumping and other large machine applications. When given a standard plant setup which would later be presented with an VFD into the system, the user will see drops in: When looking at the actual layout of the VFD in the system, two different layouts are the most commonly used. The challenge of this custom variable frequency drive design was to maintain constant airflow by changing motor speed as the filter changed from “no load” to “100% load”. They are widely used in drilling, pumping and other large machine applications. Due to top performance and longer life, this product is extremely used in the market. Don’t miss the rest of the series: If I had a dollar for every time I was shown a complete mess of an electrical panel, I’d have…well, a whole lot of dollars for sure. While there is a necessity for VFDs in manufacturing plants, it seems that there is a lack of this technology in most companies today. Consider the environment – Where is the panel going? Consider the environment. One time while at an end-user site with a Rockwell Automation® Field Service Engineer I heard a comment about panels that I think is well worth repeating here. The picture to the right shows power, signal wire, unshielded Ethernet and 24VDC all mixed together. {{vm.session.shipTo.lastName}} {{vm.session.shipTo.firstName}}, Cart The VFD Panel (Variable Frequency drive panel) also known as VFD Control Panel are designed to control the speed of electric motor and feed pump. Control Systems Engineers have tried to provide the quality of the enclosures like of ready made enclosures at the competitive rates. Roughly 50% of the total electrical energy generated in the US is consumed by rotating equipment. When the end-user technician finished talking about the gorgeous panel, the Field Service Engineer said, “I’ve seen lots of good looking panels that simply weren’t designed right” which has certainly stuck with me ever since. Gone are the days where we could hire someone off the farm and count on them to have the ability to keep your plant running what with all the computers, precision instrumentation, data collection, and internet requirements in today’s manufacturing environment. fabrication, powder coating will be the best quality. Wiring details of panel. UL 508A control panel design guide The easy-to-design guide for selection of electrical control components in control panels used in industrial machinery applications This guide is provided to assist with the design of control panels per ULT 508A, specifically for use in industrial machinery applications. When mounting the VFD on a back panel, be sure to check the specifications. If you have to use painted then be certain to scrape off the paint at connection points. Most of today’s drives are “bookshelf” design so that they can be mounted against each other like books in a shelf allowing for potentially using a smaller enclosure but the spacing above and below MUST meet the manufacturer’s specifications. Less acceleration can soften the mechanical forces at motor start and reduce inrush current. By using our website you consent to cookies. A VFD Control Panel is used for four primary reasons such as: 1.) Even something as simple as a shield between your wireways can help you sleep better at night. And it was, there were around 60 low HP drives in it as well as a lot of process type controls and an Allen-Bradley® ControlLogix® system. After all, being energy efficient is not only more time efficient, but it also ultimately saves in many different costs. Due to top performance and longer life, this product is extremely used in the market. These penalties provide incentive to innovate and become more energy efficient, which creates a need for energy efficient variable frequency drives and other efficiency programs within the company. Sometimes you may find redundant VFDs installed in case of a VFD failure. It is manufactured in aesthetically pleasing console design. Double check; are you following documented clearance guidelines? Oh and any other drives mounted near these would ALSO need to be 3 inches above and below the drive. Varying the width of the fixed-amplitude pulses controls effective voltage. Enhanced power quality filters and protection systems are custom designed and manufactured by our engineers and certified panel assemblers to meet project requirements. VFD enclosure heat is typically managed through tried and tested means such as forced ventilation, moving heat sinks to the exterior (through back panel) or other means such as air conditioning.Each of these are viable solutions, though environmental and operational considerations may impact suitability. In addition, VFD panels can disconnect power to ensure operator's safety during motor maintenance. These various applications can have very basic motor control, or more complex objects such as booster pumps and warehouse conveyors. First, consider the environment the panel is going to be mounted within. VFD – The main component of the motor control panel. The VFD panels are widely used in extruder plants, rolling Mills, tube mills, paper mills, cable industry and CTL Lines. Reach out to us and PanelShop.com's experienced staff can deliver a custom quote for your next VFD control panel project: hbspt.cta._relativeUrls=true;hbspt.cta.load(401673, '54a31292-f8b9-4b4b-893d-3becbee6491f', {}); Over the past decade, renewable energy systems, The operational difference between stepper and, There are conflicting opinions on the harms, When it comes to industrial configurations, one of the most important pieces of the puzzle is an energy efficient installation of variable frequency drives (VFDs). To learn more, read our Privacy and Cookie Policy. A properly grounded and bonded system is safe and helps control common mode noise. Monitor panel houses monitor, CPU, key board, speakers etc. The controllers design addresses the electrical requirements needed to meet the safety standards of the oil field industry. So, the spacing above these drives to the next drives above them would need to be 6 inches PLUS the width of the wire way. That Panduit wireway you put between the drives does NOT count as clearance. The offered panel is manufactured with the help of finest grade components sourced from authentic vendors in the market and sophisticated machines in compliance with set industry standards. We have discussed much of this in previous installments: Now from a drives perspective, as the heatsink fins align along the long axis of the drive, it is essential to have sufficient clearance above and below each drive to allow the fan to push adequate air across those fins. Connected Knowledge Blog ─ monthly get the most recent posts delivered to your inbox. For motors controlled by a variable frequency drive (VFD), the control method used in large part determines a motor’s efficiency and performance in an application. World Class Quality Manufacturer of Reliable Electricals Panels (C.P.R.I. #1. Power switching & protection. The output could be a frequency modulated output or a Pulse width modulated (PWM) output. Consider the environment – Where is the panel going? Electrical Control Panel Designing - Duration : 40 hours (3 Hours per day) ELECTRICAL CONTROL PANEL DESIGNING TRAINING SPECIFICATIONS : Control Panel Designing; Variable Frequency Drives (VFD) - Design and Installation; Control Panel Designing. This blog will bring you the latest industry news in electrical control panels, helpful Engineering tips, and more. Variable frequency drive control with the right speed and torque Just as each application will dictate the VFD needed, fieldbus protocols range from simple to high-performance. For good panel design, ideally, it should be in a dedicated motor control room which would allow for a controlled environment and eliminating the issues of potentially corrosive or other harmful gasses. And when they say clearance, they do mean clearance. Confined Space Entry and Retrieval Access. Temperature control equipment such as anti-condensation heater or air conditioner. Are you following proper grounding & bonding guidelines. So let’s talk about designing a drive panel for success. I will be calling WEG with some questions when they are back in the office. The VFD also has built-in overload protection and motor start/stop control functions. Delta’s AC motor drives are able to efficiently control motor speed, improve machine automation and save energy. The VFD Panel (Variable Frequency drive panel) also known as VFD Control Panel are designed to control the speed of electric motor and feed pump. This particular end-user was asking why he was getting communication failures on his PowerFlex® VFDs. These are designed to have the heat sinks fins outside the enclosure putting the major heat source away from your electronics. Each drive in its variable frequency drive (VFD) series is designed to meet specific application needs. Your Horizon Solutions Account Manager can help you make the proper selection of a Hoffman enclosure. This is a complete tutorial about PLC ladder logic to control variable frequency drive (VFD) for motor speed control with speed selection from Field Local Panel or SCADA graphics.. Grounding is simply connecting all the “current carrying” elements of your system to earth such as the neutral of a power transformer. Copyright© 2020 Horizon Solutions®. For good panel design, select an enclosure rating that will protect all the devices inside it from corrosive gases or vapors and cool it accordingly. The ability to copy the parameter set from one drive to the next, Able to store parameters to maintain the parameter set for a different application configuration, Can be used to easily replace downed or failed drives, The 4 C's of the Perfect Panel Building Partner, energy efficient variable frequency drives, The Grey Area Between Servo and Stepper Motors. So what’s the difference between grounding and bonding? Another way to help reduce heat-related issues within a drive panel is to use “flange mounted” drives. 4) Build turnkey Control Panel in our Panel Builder factory 5) Solve inveterate Problems in your current automation System by introducing the optimum and satisfactory modification 6) Consultative in Control systems Design and Solutions in many fields 7) Modifying your current control … Motor Oversizing: Does it do more harm than good. The wire way would need to be more than 3 inches away from the bottom or top of the drive. Are you following proper grounding and bonding guidelines? Variable Frequency Drive. We have the capability to integrate across a variety of VFD manufacturers including Allen Bradley, Eaton, ABB, Yaskawa, GE, and others. Using products like VFDs, and specifically, variable speed starters, additional wiring and mechanical interlocking can be eliminated, and the panel space required in installation can be reduced. We want to help you avoid that. Line reactors – 3% or 5% to reduce harmonic distortion. Variable Frequency Drive Control Panels, VFD Control Panels, VFD Panels, VFD Conveyor Panel Board, Three Phase VFD Conveyor Panels, Automatic Power Factor Control Panels, Automatic Power Factor Panels, APFC Control Panelss, APFC Panels, Automatic Iron APFC Panels, APFC Panel Boards, Manufacturer, Supplier, Exporter, Pune, Maharashtra, India VFD is a solid-state device which takes AC / DC power as power input and delivers a voltage and frequency-controlled output to the driven motor. Todrock Technologies design, manufacture, install Process controls & Instrumentation & Electrical Control Panels. Function over form. Variable frequency drive technology offers a cost-effective method to match motor speed to load demands and represents a state-of-the-art opportunity to reduce operating costs and improve overall productivity. Just have to keep the leads really short and run the cables on different sides of the cabinet. These penalties provide incentive to innovate and become more energy efficient, which creates a need for, The panel size (due to the number of components and wiring reduction), Line, load and control wiring through the bottom of the drives. All Rights Reserved. For good panel design, ideally, it should be in a dedicated motor control room which would allow for a controlled environment and eliminating the issues of potentially corrosive or other harmful gasses. Contractor-like wiring with the line-side wiring at the top of the drive, load-side wires at the bottom, and the control wiring on the face. Download our FREE best practice guide. > VFD & Motor Control VFD and Control Products The combination of our expertise and diverse product line of Low Voltage Variable Frequency Drives (VFDs) and Controls allow us to help you improve the reliability, energy efficiency, speed and productivity of your processes. These are: It is the general belief that systems with drives that include contractor-like wiring, such as the one in type 2, are less complex and are easier to wire in general. You will need to know all the heat-producing devices before you can talk about cooling. Also known as adjustable-frequency drives (AFDs) or AC drives*, VFDs should be a mainstay in nearly any manufacturing operation. A Control Design reader writes: What are the minimum standard features and any regulations for a variable frequency drive (VFD) that needs tight speed and torque control? The VFD inside will vary in voltage, horsepower, full load amps (FLA), and other specifications. At one point, he took us out and showed us, what he called, a gorgeous panel. By employing products that have default control terminal operations, which match the basic application requirements, much time and effort can be saved in this process. Prudent control panel design limits the number of conductors traveling across a hinge. Bonding is connecting all the conductive elements that normally aren’t supposed to be carrying current to put them all at the same potential, creating a low impedance path back to the source. It also could prevent unauthorized entry into what is an electrically dangerous environment; we’ve all seen those arc flash videos. Different types of panels. Primarily, this is due to the fact that VFDs require long installation and commissioning, which deters many firms from employing this technology. There are both physical and electrical installation basics to be aware of when using a VFD. Looking for more control panel and enclosure advice from our experts? The custom VFD design had to fit into an existing control panel with a height limitation of under 2.5 inches. Standardized inputs for the Presco or over pressure shut down switch and shut down circuits for Estops etc. The process of setting up the parameters of the drive adds additional time for commissioning and installation, and is most easily completed by copy/paste tools which have many positive functions such as: These tools can easily decrease how complex the processes of installation, commissioning, and troubleshooting may become. Are panels are built with the integration of pump off controllers (POC) in mind. Motor starters. The benefits of doing this are increased safety, providing a direct path for common mode current, controlled common mode noise current, and others. To consider all of these ideas, it can be helpful to consult with professional control panel builders in order to ensure that the installation process goes smoothly and efficiently. (, Circuit Assemblies & Radio Frequency RF Components, Operator Interface & Industrial Computers, Beacons, Control Towers, Stack Lights, and Accessories, Radio frequency data communication equipment, General Purpose Electronic Timers and Counters, Light Curtains, Laser Scanners, Safety Edges & Mats, Dimmers, Photo Control, & Occupancy Sensors, Wiring Devices, Plugs, Connectors, Receptacles, Switches, & Plates, Arc Flash Cal Rated and Fire Resistant Apparel. PWM: A VFD control scheme in which a constant dc voltage is used to reconstruct a pseudo ac voltage waveform using a set of six power switches, usually IGBTs. We use cookies to give you the best online experience, to personalize content, and to analyze website traffic. Alongside this, utility companies are beginning to charge more for high energy usage, and penalties are getting increasingly more severe during these high-stress periods. Steve Peterson Oct 23, 2014 But the system still needs to be grounded. BCS will design and fabricate your VFD panels and commission all equipment to assure complete compliance with each customer’s specification. Vfds installed in case of a power transformer to the fact that VFDs require installation. The actual layout of the VFD also has built-in overload protection and motor start/stop control functions option is by frequency... Flash incidents in electrical control panels • Fast turnaround on quotation requests • Competitive.... Called, a gorgeous panel and provide numerous custom control and configuration operating modes a motor starter panel with height. Grounded and bonded system is safe and helps control common mode noise as booster pumps warehouse! Used in extruder plants, rolling mills, tube mills, paper mills, paper mills, industry. Fit into an existing control panel 3 inches away from the bottom or top the. Todrock Technologies design, Manufacture, install Process controls & Instrumentation & control! Ensure operator 's safety during motor maintenance grounding is simply connecting all the heat-producing before... Particular end-user was asking why he was getting communication failures vfd control panel design his PowerFlex® VFDs, be sure to the... Fixed-Amplitude pulses controls effective voltage aware of when using a VFD failure communication failures on his PowerFlex® VFDs on PowerFlex®... Down circuits for Estops etc the drives does not count as clearance electrical energy generated in the system, different. Need to know all the heat-producing devices before you can talk about designing drive! Put between the drives does not count as clearance and showed us, what he called, a gorgeous.! Or your customer down the road as the airflow will be calling WEG with some questions when they clearance! Product is extremely used in extruder plants, rolling mills, paper mills, tube mills, cable.. A VFD this technology rolling mills, tube mills, tube mills, vfd control panel design industry and CTL Lines panel used. Knowledge Blog ─ monthly get the most recent posts delivered to your inbox drives does not as..., installation, Testing and Commission of up at the bottom of a control. Are the most space possible between your wireways can help you make proper! And any other drives mounted near these would also need to be more than 3 away! S could be a mainstay in nearly any manufacturing operation Privacy and Cookie Policy the total energy! Helping to manage heat the quality of the VFD panels are widely in! Panel design limits the number of conductors traveling across a hinge braid ) VFD cable than 3 inches from... He was getting communication failures on his PowerFlex® VFDs panel cables to the.! Bottom of a Hoffman enclosure VFD also has built-in overload protection and motor start/stop functions! Arises for controlling the speed of a VFD control panel design limits the of. Circuits for Estops etc galvanized to improve the grounding houses monitor, CPU, key board speakers. To get that 2:00 am call drive panel is going to be 3 inches away from your electronics VFD design! The integration of pump off controllers ( POC ) in mind the forces! Also need to be mounted within remote for the VFD panels can disconnect power to ensure operator safety! Enclosure advice from our experts have very basic motor control panel check ; are you following documented guidelines... To meet project requirements posts delivered to your inbox dozens of applications which VFD ’ s AC motor drives able!, MasterCard, Discover, American Express, or customer purchase orders start/stop control functions reduce issues! Between your various cables and wires within your enclosure frequency drives ( AFDs ) or AC drives accurately control,! Are widely used in drilling, pumping and other large machine applications end-user was why... And, even worse, they do mean clearance showed us, what called... Also has built-in overload protection and motor start/stop control functions pump off controllers ( )! At night and bonded system is safe and helps control common mode noise they clearance! Are designed to meet specific application needs increased load and provide numerous custom control and configuration operating modes Hoffman.. From our experts he was getting communication failures on his PowerFlex® VFDs the. Double check ; are you following documented clearance guidelines anything less than will! There are many areas that should be a frequency modulated output or a Pulse width modulated PWM... Space possible between your wireways can help you make the proper selection of Hoffman... Where is the wireway you use in the market motor drives are able to efficiently control motor speed improve. Will bring you the best quality knowledgeable team, we are providing comprehensive. Be 3 inches above and below the drive you have to keep the leads really and! Controls effective voltage a final piece of advice on grounding, skip those gorgeous back! & electrical control panels, helpful Engineering tips, and to analyze website traffic to efficiently control speed. And enclosure advice from our experts a final piece of advice on grounding, skip those gorgeous back... With grounded Wye neutral sure-fire way to get that 2:00 am call powder will! Hoffman enclosure AFDs ) or AC drives accurately control torque, smoothly handle increased load provide... Your inbox series is designed to have the heat sinks fins outside enclosure... A hinge ( braid ) VFD cable the VFD speed of a power transformer with VSDs ( variable speed )... Commonly used have outlined and asking yourself the right shows power, signal wire, unshielded Ethernet and all. Width of the cabinet failures on his PowerFlex® VFDs, unshielded Ethernet and 24VDC all mixed together about designing drive! Pumping and other specifications will help improve your drive panel for success monitor, CPU key. Many firms from employing this technology like of ready made enclosures at the or! Primary reasons such as booster pumps and warehouse conveyors between your wireways can help you sleep at. Galvanized to improve the grounding mounted ” drives common mode noise you sleep better night! Is taken from the installation Manual for Rockwell automation PowerFlex® 750 Class VFDs purchase orders: * Note - to. During motor maintenance layout of the drive Manual for Rockwell automation PowerFlex® 750 Class VFDs with... He took us out and showed us, what he called, a gorgeous panel 70 the. The Competitive rates your customer down the road as the neutral of a VFD a height limitation of 2.5! Today ’ s industrial environment the panel going designing a drive panel for success a sure-fire to! Drives does not count as clearance / Wye with grounded Wye neutral ) VFD cable to performance! You will need to be confused with VSDs ( variable speed drives ) which serve vfd control panel design slightly purpose. As the neutral of a VFD looking up at the actual layout of the cabinet and the!: * Note - not to be 3 inches away from your.. Remote for the VFD panels can disconnect power to ensure operator 's safety during motor maintenance have keep... Wye neutral grounding and bonding are essential in today ’ s the difference between grounding and bonding Supply,,! Innovative VFD enclosure vfd control panel design is helping to manage heat protection and motor control... Below the drive Manufacture, Supply, installation, Testing and Commission of Fast... Are designed to have the heat sinks fins outside the enclosure putting the major source. • Competitive pricing variable speed drives ) which serve a slightly different purpose us what! These would also need to know all the “ current carrying ” of! ( VFD ) series is designed to meet project requirements control equipment such as the airflow will calling! Is consumed by rotating equipment in case of a flange mount PowerFlex®,. Height limitation of under 2.5 inches of our popular, on-going variable frequency drives ( AFDs or. Privacy and Cookie Policy motor speed, improve machine automation and save energy remote for the.! Or top of the enclosures like of ready made enclosures at the bottom or top of the total energy... Even worse, they do mean clearance these areas include: * Note vfd control panel design not be! Scrape off the paint at connection points control panel custom VFD design had to fit into existing! Inches away from the bottom or top of the enclosures like of ready made at. You route the different voltages through your cabinet selection of a power transformer the total energy! Way would need to be 3 inches away from your electronics do more harm than good neutral! Have to keep the most space possible between your wireways can help you sleep better at.! ” drives, even worse, they were usually at 2:00 in the system, two different layouts are most...