Is anyone familiar with PWM settings. I have a controller from work that has PWM outputs. I am not sure where to set the Zero Width, Max Width and the Period. The minimum time I can set is 0.1 second. Do some SSRs have limitations on these settings? If I understand this correctly I could set the Zero to 0.3 ,the Max to 0.7, and the Period to 1.0. Would this mean that the first 0.7 sec it would be on and the last 0.3 sec it would be off at a command of 100%? If this is true then 50% command would mean on for 0.35 sec and off for 0.65 sec? I have been in building automation for a few years now and I have not been exposed to PWM yet.