How to ramp up a pump when its turned back to AUTO

[Batty]

I have a powerful return pump and when I turn it back to auto after I have had it turned off it goes straight to 100%. It is controllable via a 0-10V port.

How can I get it to slowly ramp up when its switched back to auto as opposed to it going straight to maximum. Basically a soft start

[zombie]

Create a profile that ramps from 0 to 100 over 1 minute. Then instead of using ON, replace it with the profile name.

You might be an engineer if...You have no life and can prove it mathematically.

[Batty]

Another good idea...thank you

[Batty]

Sorry, I'm still new to this...
I have made a profile RtnRmpUp (a profile is like a function in normal programming?)

How do I call it from the RtnOn-Off outlet

I tried

If Output RtnOn-Off =On Then RtnRampUp

But it didnt work

[zombie]

What is your current program for the 0-10V output?

You might be an engineer if...You have no life and can prove it mathematically.

[Batty]

On Variable outlet 3 I have the following. It just ramps the return pump down for a few minutes at each feeding

Fallback ON
tdata 00:00:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 07:55:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 08:00:00,0,0,10,0,0,0,0,0,0,0,0,0,0
tdata 08:05:00,0,0,10,0,0,0,0,0,0,0,0,0,0
tdata 08:10:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 11:55:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 12:00:00,0,0,10,0,0,0,0,0,0,0,0,0,0
tdata 12:05:00,0,0,10,0,0,0,0,0,0,0,0,0,0
tdata 12:10:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 15:55:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 16:00:00,0,0,10,0,0,0,0,0,0,0,0,0,0
tdata 16:05:00,0,0,10,0,0,0,0,0,0,0,0,0,0
tdata 16:10:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 19:55:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 20:00:00,0,0,10,0,0,0,0,0,0,0,0,0,0
tdata 20:05:00,0,0,10,0,0,0,0,0,0,0,0,0,0
tdata 20:10:00,0,0,100,0,0,0,0,0,0,0,0,0,0
tdata 23:59:00,0,0,100,0,0,0,0,0,0,0,0,0,0

[zombie]

That's not the recommended approach. Search vFeed to see how to link the return to your feeder properly, but you should have something along the lines of this.

Fallback ON
Set RampUp
If Output vFeed = ON Then OFF


You might be an engineer if...You have no life and can prove it mathematically.

[Batty]

Would this work?

Return Pump:

Fallback On
Set On
If Outlet VFEEDOFF=On Then Off


Feeder:

Set OFF
If Output VFEEDOFF = ON Then ON
Defer 001:00 Then ON

Profile:
RtnRampUp

Time:1
Start intensity=0
End intensity=100

Outlet:
VFEEDOFF

Set OFF
If Time 08:00 to 08:04 Then ON
If Time 12:00 to 12:04 Then ON
If Time 16:00 to 16:04 Then ON
If Time 20:00 to 20:04 Then ON
Defer 04:00 Then RtnRampUp

[zombie]

No, but this will

Return Pump (0-10V)

Fallback On
Set RtnRampUp
If Outlet VFEEDOFF=On Then Off


Feeder:

Set OFF
If Output VFEEDOFF = ON Then ON
Defer 001:00 Then ON

Profile:
RtnRampUp

Time:1
Start intensity=0
End intensity=100

Outlet:
VFEEDOFF

Set OFF
If Time 08:00 to 08:04 Then ON
If Time 12:00 to 12:04 Then ON
If Time 16:00 to 16:04 Then ON
If Time 20:00 to 20:04 Then ON




You might be an engineer if...You have no life and can prove it mathematically.

[Batty]

Thanks very much for your help

I didn't like the sudden switch off of the pump and that at 0 it allowed a back syphon through the return outlet. The back syphon introduced air bubbles when the return pump ramped back up so I adjusted by adding a further profile to ramp down to the pumps stall point (in my case 6%), thus preventing the syphon and air.

RtnRampDwn
Time 1
Start Intensity=6%
End Intensity=100%

I adjusted the RtnRampUp
Time 1
Start Intensity=6%
End Intensity=100%

I changed Return-pump

Fallback ON
Set RtnRampUp
If Output vFeedoff = ON Then RtnRampDwn (gradual ramp down of return to stall point)
If Leak CLOSED Then OFF (turn return off if leak detected)

I added Feed A to the VFeedOff virtual outlet to allow for manual feeding.

Set OFF
If Time 08:00 to 08:04 Then ON
If Time 12:00 to 12:04 Then ON
If Time 16:00 to 16:04 Then ON
If Time 20:00 to 20:04 Then ON
If FeedA 000 Then ON (allow for manual feed)

[zombie]

Thanks very much for your help

I didn't like the sudden switch off of the pump and that at 0 it allowed a back syphon through the return outlet. The back syphon introduced air bubbles when the return pump ramped back up so I adjusted by adding a further profile to ramp down to the pumps stall point (in my case 6%), thus preventing the syphon and air.

RtnRampDwn
Time 1
Start Intensity=6%
End Intensity=100%

I adjusted the RtnRampUp
Time 1
Start Intensity=6%
End Intensity=100%

I changed Return-pump

Fallback ON
Set RtnRampUp
If Output vFeedoff = ON Then RtnRampDwn (gradual ramp down of return to stall point)
If Leak CLOSED Then OFF (turn return off if leak detected)

I added Feed A to the VFeedOff virtual outlet to allow for manual feeding.

Set OFF
If Time 08:00 to 08:04 Then ON
If Time 12:00 to 12:04 Then ON
If Time 16:00 to 16:04 Then ON
If Time 20:00 to 20:04 Then ON
If FeedA 000 Then ON (allow for manual feed)

Think you got a typo on ramp down. Looks like your min and max are swapped.

You might be an engineer if...You have no life and can prove it mathematically.

[Batty]

Yup your right....fortunately its correct on the Apex