Hello,
I am wondering how best I could provide engine protection on an ECM-Governed engine using the PV380.
I am hoping to use a 0-5V pressure transducer, and wish to have adjustable setpoints at low and high pressure in order to cause a shutdown of the engine. Will transmitting a DM cause a shutdown? Or would you instead suggest using the binary output to cut ECM power or similar?
Also I would greatly appreciate an estimate of the amount of programming required to add this functionality to the basic Murphy configuration (for someone experienced with Powervision but new to the PV380).
Thank you again and best regards,
Alex.
PV380 for ECM engine shutdown
- Hamsteh
- Posts: 42
- Joined: Wed Sep 21, 2011 3:31 am
PV380 for ECM engine shutdown
www.ajbarry.com.au Bespoke Control Systems
BEng (Robotics and Mechatronics) & BSci (Computer Software Engineering)
Melbourne, Australia
BEng (Robotics and Mechatronics) & BSci (Computer Software Engineering)
Melbourne, Australia
- vtaylor
- Posts: 13
- Joined: Fri Jul 27, 2012 7:33 am
Re: PV380 for ECM engine shutdown
Since your engine is controlled by an ECM, the best way to shut down the engine is going to be dependent upon what the manufacturer recommends. You need to ask one of their reps for the method they recommend. I've worked with Deutz, Cummins, and Kubota and each of them wants things done differently. With that in mind, if you already have experience with PowerVision you should find the PV380 pretty familiar and easy to work with. I've done very something similar, albeit with static setpoints, with a PV380 already and it wasn't very difficult to get it working. Adjustable setpoints add some complexity because of the extra programming and screens necessary to change the setpoints, but the default configuration should give you an idea of how to go about it (look at how the service reminders are done for a good example).
One thing to note though, the outputs on the PV380 are turned on/off a little differently from the PV450 so you may want to experiment for a few minutes to get a feel for how it works - once you've enabled the output in "connections" and either auto-created or mapped a variable to it, you write a "1" into the variable to enable the output and a "0" to disable (I use calculation events to do this but there's probably another way as well). This is a bit different from using the IO Manager's "Digital High" and "Digital Low" events as in the PV450, but once you get it setup its all the same from there.
Good luck!
One thing to note though, the outputs on the PV380 are turned on/off a little differently from the PV450 so you may want to experiment for a few minutes to get a feel for how it works - once you've enabled the output in "connections" and either auto-created or mapped a variable to it, you write a "1" into the variable to enable the output and a "0" to disable (I use calculation events to do this but there's probably another way as well). This is a bit different from using the IO Manager's "Digital High" and "Digital Low" events as in the PV450, but once you get it setup its all the same from there.
Good luck!