FIXING ERC ERRORS

 

Keep in that mind our set of errors might differ slightly from yours. In this part, we’ll go through some of our errors one-by-one to show you how we troubleshoot our way through our schematic, and you can do the same!

 

Error 1 – Unconnected INPUT pin IC1 CON

 

Here’s the first error, but what does it mean? Selecting the error in your ERC Errors Dialog should take you to Pin 5 on your NE555 Timer, which is clearly unconnected! Now, before running off to connect that pin to ground, the  T1 NE555 has a hint of what you need, it says:

A Decoupling CONTROL voltage to ground with a capacitor can improve operation. This should be evaluated for individual applications.

 So, what that means is that you need to add a capacitor to your schematic before connecting any nets, here’s how:

1. Select the Add  icon on the left-hand side of your interface.

2. In the ADD Dialog, search for “electrolytic capacitor.”

3. Select the first available capacitor listed in the rcl > EL – folder.

4. Select OK and place this capacitor on your schematic between Pin 5 and your ground net.

5. Next, select the Net  icon on the left-hand side of your interface and connect Pin 5 to the top of the capacitor, then connect the bottom of the capacitor to the ground net below it.

6. Last, select the Value  icon on the left-hand side of your interface and left-click your newly placed capacitor to give it a value of “10n.”