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main-power-input [2017/01/25 17:27]
arthur
main-power-input [2018/06/09 19:05] (current)
78.239.213.130
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-~~~~+~~CLEARFIX~~
  
-<div style='​width:​450px'><​panel type="​default"​ title="​A power supply">​ 
-<image shape="​thumbnail">​ 
 <​html>​ <​html>​
-<img src="http://i00.i.aliimg.com/wsphoto/​v0/​546867934/​Genuine-MeanWell-Mean-Well-MW-7-5V-46A-350W-Regulated-AC-DC-Switching-Power-Supply-NES.jpg" style="​width:​100%;"​> +<div class='​panel panel-default wrap_right'​ style='​width:​450px;​padding:​10px '>​ 
-</html>+<div class='​panel-heading'><​h4 class='​panel-title'>​A power supply</​h4></​div>​ 
 +<​image ​src='https://i.stack.imgur.com/LGgvd.jpg' ​width='​430px'​><br/>
 Be careful, mains voltage is dangerous Be careful, mains voltage is dangerous
-</​image>​ 
-</​panel>​ 
 </​div>​ </​div>​
 +</​html>​
 +
 +
 +==  Main Power Input
 +<​html><​a name='​main-power-input'></​a></​html>​
  
-== [[# main-power-input]] Main Power Input 
  
 Without power, your board can not do much. The board uses power to move stepper motors, and power heating elements, fans, and others. Without power, your board can not do much. The board uses power to move stepper motors, and power heating elements, fans, and others.
  
 How to choose a power supply unit (PSU) :  How to choose a power supply unit (PSU) : 
-[[http://​en.wikipedia.org/​wiki/​Voltage|Voltage]] (V) : Can be from 12 to 24V. While most of the components on the Smoothieboard are rated up to 32V, it is not recommended or supported to use that voltage. 12V PSUs are more common, and generally cheaper. However, the higher the voltage, the more you will get out of your stepper motors. This is the reason some designers use 24V PSUs. However, be careful that with a 24V PSU, you will need 24V fans, and will need to reduce the PWM setting for your heating elements. + 
-[[http://​en.wikipedia.org/​wiki/​Electric_current|Current]] (A): The total current required is the current for each stepper motor, plus the current for every peripheral on your machine Smoothieboard will control. This depends on your machine type. On a typical 3D printer, you can safely consider that 10A for the heated bed, and 10A or a bit less for the rest of the elements, is enough current. Go for a 17 to 20A PSU if you have a heated bed. 7A to 10 is probably enough if you do not have a heated bed (or if you are setting up a CNC mill or a laser cutter). If you bought your machine as a kit, a PSU with appropriate current is most probably provided (or one is recommended). If building your machine yourself by self-sourcing,​ the documentation for the machine model will also most probably recommend a current rating. A power supply that is able to supply more current than is needed is not a problem. Having not enough current to drive your hot-end, heater bed, or motors is a problem.+[[http://​en.wikipedia.org/​wiki/​Voltage|Voltage]] (V) : Can be from 12 to 24V. While most of the components on the Smoothieboard are rated up to 32V, it is not recommended or supported to use that voltage. 12V PSUs are more common, and generally cheaper. However, the higher the voltage, the more you will get out of your stepper motors. This is the reason some designers use 24V PSUs. However, be careful that with a 24V PSU, you will need 24V fans, and will need to reduce the PWM setting for your heating elements. 
 +[[http://​en.wikipedia.org/​wiki/​Electric_current|Current]] (A): The total current required is the current for each stepper motor, plus the current for every peripheral on your machine Smoothieboard will control. This depends on your machine type. On a typical 3D printer, you can safely consider that 10A for the heated bed, and 10A or a bit less for the rest of the elements, is enough current. Go for a 17 to 20A PSU if you have a heated bed. 7A to 10 is probably enough if you do not have a heated bed (or if you are setting up a CNC mill or a laser cutter). If you bought your machine as a kit, a PSU with appropriate current is most probably provided (or one is recommended). If building your machine yourself by self-sourcing,​ the documentation for the machine model will also most probably recommend a current rating. A power supply that is able to supply more current than is needed is not a problem. Having not enough current to drive your hot-end, heater bed, or motors is a problem.
  
 === Setup === Setup
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 Make sure you use a [[http://​en.wikipedia.org/​wiki/​Regulated_power_supply|Regulated Power Supply]], make sure you connect the ground wire for the [[http://​en.wikipedia.org/​wiki/​Mains_electricity|mains]] to the power supply, and if it has a fan, make sure it has sufficient space around it to let air flow and cool it appropriately. ​ Make sure you use a [[http://​en.wikipedia.org/​wiki/​Regulated_power_supply|Regulated Power Supply]], make sure you connect the ground wire for the [[http://​en.wikipedia.org/​wiki/​Mains_electricity|mains]] to the power supply, and if it has a fan, make sure it has sufficient space around it to let air flow and cool it appropriately. ​
  
-To wire the power supply unit to [[http://​en.wikipedia.org/​wiki/​Mains_electricity|mains]] (wall AC power), make sure you connect the right colored wires to the right connectors on the PSU. The 3 connectors are "​live",​ "​neutral"​ and "​ground"​. Color changes from cable to cable, you can find charts for your specific country/​cable on the internet, but the following colors are the most common: ​+To wire the power supply unit to [[http://​en.wikipedia.org/​wiki/​Mains_electricity|mains]] (wall AC power), make sure you connect the right colored wires to the right connectors on the PSU. The 3 connectors are "​live",​ "​neutral"​ and "​ground"​. Color changes from cable to cable
 +You can find charts for your specific country/​cable on the internet, but the following colors are the most common: ​
  
-* US: Black = Load/Live, White = Neutral, Green = Earth +^ Standard ^ Load/live color ^ Neutral ​color ^ Earth color ^ 
-EuropeBrown = Load/Live, light Blue = Neutral, ​Yellow/​Green ​= Earth+| US       | Black           | White         ​| ​ Green      | 
 +Europe ​  | Brown           | Light blue    |  ​Yellow/​Green ​|
  
 Once the wires connected to the PSU, make sure none of your computers is doing something important (like a system upgrade). In case something goes wrong, plug the PSU into a power strip with an on/off button. Then turn that button ON. If your house loses power, you did something wrong. If an LED illuminates on the PSU, everything is fine: unplug the PSU and continue. Once the wires connected to the PSU, make sure none of your computers is doing something important (like a system upgrade). In case something goes wrong, plug the PSU into a power strip with an on/off button. Then turn that button ON. If your house loses power, you did something wrong. If an LED illuminates on the PSU, everything is fine: unplug the PSU and continue.
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 **[[http://​1.media.collegehumor.cvcdn.com/​60/​74/​db2c0a0e1cbfdbe1eecf50a0289884d3-free-key-cleaner.jpg|NEVER]]** manipulate mains (220/110V) power wires while they are plugged into the wall plug. Unpleasantness and/or death are common consequences of not respecting this rule. **[[http://​1.media.collegehumor.cvcdn.com/​60/​74/​db2c0a0e1cbfdbe1eecf50a0289884d3-free-key-cleaner.jpg|NEVER]]** manipulate mains (220/110V) power wires while they are plugged into the wall plug. Unpleasantness and/or death are common consequences of not respecting this rule.
 +
 </​callout>​ </​callout>​
  
 <callout type="​danger"​ icon="​true">​ <callout type="​danger"​ icon="​true">​
 +
 Ground your printer'​s frame by connecting it to the Earth terminal on your power supply. In the (unlikely) event that a power supply wire comes undone and touches the printer'​s frame, this will prevent you from getting an unpleasant and/or deadly shock. Ground your printer'​s frame by connecting it to the Earth terminal on your power supply. In the (unlikely) event that a power supply wire comes undone and touches the printer'​s frame, this will prevent you from getting an unpleasant and/or deadly shock.
 +
 </​callout>​ </​callout>​
  
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 On the Smoothieboard they are indicated simply as **+** and **-**. On the Smoothieboard they are indicated simply as **+** and **-**.
  
-[[<image https://​raw.githubusercontent.com/​Bouni/​smoothieboard-graphics/​master/​smoothieboard-power.png width="​800px"​]]+<​html>​<​image ​src="https://​raw.githubusercontent.com/​Bouni/​smoothieboard-graphics/​master/​smoothieboard-power.png" ​width="​800px"​></​html>​
  
 By convention, black (sometimes brown) wires are used for ground, and red (sometimes orange, white or yellow) wires are used for power connections. By convention, black (sometimes brown) wires are used for ground, and red (sometimes orange, white or yellow) wires are used for power connections.
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 Check polarity, and check all the connections are strong and properly done. Check polarity, and check all the connections are strong and properly done.
  
-When you turn the PSU on, make sure you are ready to immediately turn it back off.+When you turn the PSU on, make sure you are ready to immediately turn it back off.
 </​callout>​ </​callout>​