Author Topic: PVES and MFOut block settings for MC024-020  (Read 3537 times)

plknapp

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PVES and MFOut block settings for MC024-020
« on: September 08, 2011, 11:30:05 PM »
I have programmed a MC024-020 using the PVE-A/H/S and MFOut blocks. 

I am driving a PVES valve.

Do I need to worry about dither with this valve?

I have tried to remove dither from the C2P03 output but with no success.

Here are screen captures  showing values for configurable variables.

I have tried 3, 5, and 6 for the PinConfig value but still get dither on C2P03.

Thank you in advance for your time and help.

plknapp

  • Guest
Re: PVES and MFOut block settings for MC024-020
« Reply #1 on: October 03, 2011, 06:59:58 PM »
For my application I have 6 analog inputs (C2P01, C2P02, C1P05, C1P10, C1P11, C1P12) corresponding to 6 outputs (C1P03, 04, 05, 06, 07, 08) to drive 6 PVES valves.

I have set in PLUS+1 for each Input and Output values below:

Application.PVE_A_H_S.DigiIn.PinConfig = 2
Application.PVE_A_H_S.DigiIn.PinConfig0 = 2
Application.PVE_A_H_S.Output.PinConfig = 6

Outputs.Group1.CurChgLim = 111
Outputs.Group1.DitherFreq = 0
Outputs.Group1.ReqFreq = 4000

Outputs.C2P03_MFOut1.DitherAmp = 0


I still get dither: 25V amplitude, 2.6kHz frequency and PWM varies with input voltage.

I would like a steady, non-dither output voltage to drive PVES valve.